Power Plant Manhole Mania
Originally posted February 1, 2013:
It is vitally important that a manhole cover be round. By just being square or even oval, it could mean death to some unsuspecting electrician. You see, only a perfectly round manhole cover will never be able to fall down into a manhole. No matter how hard you try, you just can’t fit a bigger circle through a smaller circle. An oval or square cover could fall through the hole when turned just right but not a round one. A typical cast iron manhole can weigh up to 500 pounds.

Here is a manhole cover turned upside down. Because of the way it is shaped, when you push the cover over the hole, it falls right into place.
Not long after becoming an electrician, and shortly after the Rivers and the Rose story that I mentioned last week (see the Post “Rivers and Rose in the Power Plant Palace“), we had a cable really go to ground between the main plant and the coalyard. The cable that went to ground was called a 500 MCM cable. What this means is that 500,000 circles of 1 mil (or one milli-inch) in diameter can be put in a circle that is 500 MCM in diameter. A typical 500 MCM cable is good for a 400 amp load at 6900 volts.
For large industrial circuits, 3 phases of electricity are used instead of just one like you have in your house. With three phases of electricity, you have a constant amount of power being applied to the entire circuit at all times. With a one phase circuit, you have zero power 120 times every second. So with any “decent” power circuit, you have 3 phases of electricity.

When you add up the difference betweenvoltages of all three phases at one time, you always equal zero because you have the same amount of positive volts with negative volts at any given time. So, you will find that you always have a constant voltage between all three phases at any time.
The cable that went to ground was the coalyard station power cable. Not only were there three phases of power, but for each phase there were two 500 MCM cables. That means that this circuit was good for 800 amps of power at 6,900 volts. Giving you a capacity of 5.5 Megawatts (or 5 million, 500 thousand watts) of power. These cables were so big that a typical industrial Wire cable chart doesn’t even go this high:

500 MCM cable is also known as 5/0 cable (pronounced 5 aught). The 445 amps for the 4/0 cable are for only 50 volts. We had 6900 volts.
In a Coal-fired power plant, you have a redundant system for everything. So, the coalyard wasn’t completely in the dark. It had just swapped over to the redundant circuit. — This always amused me. In my English and Poetry classes in College I would have points taken off for being “redundant”, but in the power plant this was necessary to keep the plant running at all times.
As I said many times 15 years later, when I was training operators and electricians to be certified substation switchmen, “I know this is boring, but you have to learn it…” (but that is another story).
So, to make a rather boring lecture shorter, I will skip the part about how we had a hypot from the T&D (Transmission and Distribution) department brought in so big that it had to come in a van. They attached it to the cables to find where the short to ground was located. I’ll skip the part about how it was decided to replace the faulty cables going to the coalyard 1/2 mile away. I’ll also skip the part about how Charles Foster was able to finagle the use of Stanley Elmore’s precious blue Mitsubishi mini-tractor to try to pull the cables from one manhole to the next (the first time anyone outside the garage was able to operate his most beloved tractor…..).
Oh, and I’ll skip the part about how 1000 feet of this cable cost about $10,000 and we had six cable to replace for a cost of about $320,000 just for the cable… I’ll also skip the part about how this little tractor was too small to pull the cables through the manholes from manhole to manhole up to the coalyard, so we sent in for the big guns from the T&D department to use their equipment that pulled the cables through the manholes as easy as pulling the wool over Gene Day’s eyes while playing a joke on him. (Don’t get me wrong…. I know in his heart, Gene Day really appreciated a good joke. Gene Day is one of the best men I have ever been able to call “Friend” — which I would do shortly after playing a joke on him, after I returned to consciousness).
Anyway, after this episode was all over it was decided that something needed to be done about how all the manholes from the plant to the coalyard were always full of water. You see, the manholes were easily deeper than the lake level so water naturally leaked into them. Each of them had a pump in them that was supposed to keep them dry, but somewhere along the line, in the 5 years the plant had been in operation, each manhole pump had failed at one time or other… When pumping out the first manhole, it took days, because as you pumped out that first manhole, water would run from one manhole to the other as you actually ended up pumping out all the manholes down to the point where the cables went from one manhole to the other.
So, none other than the “newbie” was appointed as the keeper of the Manhole pumps. Yep. That would be me. So, for the next few months I spent almost all my times pumping out manholes and repairing all the pumps that had been submerged in water for years. This was my first real job.
This was my real introduction to becoming a real plant electrician (You can see how I really like using the word “real”). The most common job of an electrician was to take a motor that had failed or was scheduled to be overhauled and repair it and put it back in place to continue on it’s “tour of duty”. It’s amazing how you can take a motor that has failed, and you can “rebuild” it and put it back in operation. — This has come in handy at home as the cooling fan motor on the air conditioner unit on your house goes out every few years. I have yet to call an air conditioner man to my current house where I have lived for 11 1/2 years (now 18 years).
I remember that Charles Foster had told me that “paperwork” was very important when it came to motors. A history had to be kept. Certain steps had to be performed before, during and after repairing a motor. It had to be meggared properly (see the post from last week to learn more about meggars: Rivers and a Rose of the Power Plant Palace).
So, I asked Ben Davis if he could show me what I needed to do to fix a motor. His immediate indignant response was, “What? You don’t know how to fix a motor?” My response was, “No, I don’t know. Would you show me?” Ben, who up to that point had presented himself with displeasure at my presence in the shop, suddenly smiled and said, “Sure! Let me show you what you need to do!”
Ben showed me all the steps you go through to repair and “document” a motor repair in great detail. I was glad that I had found that Ben was just putting on a front of disgust at my presence in the Electric shop only to show me at the “proper” time that I had been “misjudging” him as being a grumpy person when he wasn’t really. There is a certain art to this which I describe in detail in this post: “Power Plant Art of Making a Bad First Impression“.
I had figured, before this time, that Ben really had a kind heart because I figured that if Diane Lucas and Andy Tubbs, who I both admired greatly considered Ben as a good friend, then he must really be a good guy underneath, even though he was keeping this hidden from me.
I knew the moment he smiled at my response when I told him I really didn’t know anything, that Ben had a kind heart. He couldn’t hide it any longer. If I had asked the same thing to OD McGaha, one of the other B Foremen in the shop, for instance, he would have told me to go to hell. But not Ben.
I have more to tell you about Ben, but I’ll save that for a later post. For now, I’ll just say that though Ben may not have known it during the time I spent as an electrician, he has always been close to my heart. I have always had Ben and his family in my daily prayers from the day that he smiled at me and explained to me how to repair a motor.
So, how does a lone newbie electrician pull a 500 pound lid off of a manhole by himself? Well. He uses a Manhole cover puller of course.
Ok. Our manhole cover puller wasn’t blue like this, but it had a similar shape. With a simple tool like this a 500 pound manhole cover could be popped out of the hole and dragged away. So, I used this tool as my one man crew (myself) went from manhole to manhole, where I pumped each out and lowered a ladder into each hole and disconnecting the drenched motor and brought it back to the shop where I dried it out (using the hot box in the shop that doubled as a heater for lunches), and repaired it and re-installed it.
We had all the manholes in the plant identified. I painted the numbers on each lid with orange paint. It was while I was working in the manholes 15 feet below ground that I appreciated the round manhole. I knew that as long as that manhole cover was round, it couldn’t accidentally be knocked into the hole only to crush me to death below.
Other things were of concern in the manholes where I worked… For instance, many of these holes had been underwater for at least a couple of years, and the entire manhole was covered with a kind of slime. there were also high voltage cables that had splices in some of the manholes, and I remember Gene Roget telling me that he had seen sparks flying off of some of them when they were hypoting the cables looking for the ground. The dank smell of the manholes made you think that there were probably some kind of “swamp gases” in there.
Nevertheless, when I grew weary of dragging the heavy shellacked wooden ladder from hole to hole, I devised a way to climb down into the manholes using the drain pipe from the motor. This was before OSHA had implemented all the confined spaces rules in 1994 that would have prevented me from entering a manhole alone. I was improvising and taking a risk of falling and hurting myself each time I entered a manhole.
I ran into one of the reasons for not leaving a person in a manhole alone one time when I was working in a manhole near the intake house and another crew drove up and parked their truck near the hole I was working in. I remember that while I was working there, I suddenly became nauseous. Not sure why, I climbed out of the hole.
The truck that had been left idling nearby had been emitting toxic fumes that had looked for the lowest place they could settle, and that happened to be in the manhole where I was working. After that, I always kept an ear out for any motor vehicles nearby when I was in a manhole.
Ten years later, in 1994, OHSA added some new laws to the books that made it mandatory to have a “hole watch” stand outside a hole watching you while you worked in a manhole. You even had to have a safety harness tied to a safety hoist so that if you passed out while in a manhole the hole watch could pull you out without having to enter the hole.

This is a special hoist designed to lift a person out of a confined space without seriously injuring someone that is caught on obstacles.
Needless to say. I got my feet wet as an electrician popping in and out of manholes like the gopher in the arcade that you try to bop on the head.
One interesting story that happened during this time happened when Blake Tucker, who had been a summer help with me in the garage, and then later became a summer help in the electric shop, was sitting with me while we were going to fix a pump in manhole 215 (I believe this is the number of the manhole next to the intake where the fly ash pipes go over the intake).
The hole was full of water, and the pump had naturally tripped the breaker….. For some reason I decided to go into the intake switchgear and reset the 120 volt breaker to the pump in the Distribution Panel. When I did. I returned to the hole where Blake was waiting for me. I reached down into the hole with my foot and I kicked the drain pipe that rose from the pump and made a 90 degree turn up close to the entrance.
When I kicked the pipe, the motor actually began running. We could see it 15 feet below us in the clear water running. It was an open face motor, meaning that it wasn’t sealed and made to be a submersible pump, yet it was running under water. A year later we decided that it made more sense to replace all the open motors with submersible pumps.
Blake Tucker and I watched for 1/2 hour as the pump sucked out the water from the manhole. When the level of the water reached the top of the motor, the outboard fan that had been slowly rotating all of the sudden kicked into high gear and we could see that the pump had been running at full speed all along.
This fascinated me. I figured the water must have been pure enough not to be too conductive (pure water is a natural insulator…. oddly enough). We could easily see this pump through 15 feet of water, so it must have been pretty clean. That was the only time I have ever seen an open motor happily running submersed in water… It is not something you see every day….. for instance…. It is not every day that you see a janitor with a Psychology major acting like an electrician sitting beside a manhole staring down into the darkness in a power plant either. But there you are…
Switching in the Power Plant Substation Switchyard
Originally posted on February 9, 2013:
The phone rang Saturday morning on March 17, 1984. Since we didn’t have caller ID at that time, I had to pick up the phone to tell who was on the other end. It was my foreman Charles Foster. He said he needed to go out to the plant to do some switching in the substation and he needed someone to help him. I had been an electrician for all of 5 months and this was the first time I had been involved with switching in the substation.
When I arrived at the plant 30 minutes later, the operators in the control room were busy putting Unit 1 online. Charles Foster had brought along his son Tim Foster. Tim was about 10 years old at the time. The operators didn’t have any certified switchmen available, and so the Shift Supervisor, Jim Padgett gave the go ahead for me to go with Charles and act as the “secondary” switchman. That is, I was the one that read and re-read the instructions while Charles would actually crank the switches.
Here is a picture of a typical substation you might run across:
I found this picture on the Department of Labor website. The Main substation at the power plant was much bigger than this one. Half of the substation was the 189,000 volt substation the other half was the 345,000 volt substation. For the particular switching that we were doing that day, we were in the 189 KV end of the substation. This is where Unit 1 fed power to the world.
This was my first experience doing something in the substation other than sub inspections and Transfer Trip and Carrier tests. I was a little surprised when Charles closed one of the air break switches and there was a loud crackling sound as an arc of electricity jumped from one switch to the next. Charles told me that was nothing. Just wait until I close the main switch from the transformer on Unit 2 in the 345 KV sub up the hill.
He was right. Later when I first opened that switch, it drew an arc about 3 feet long before it broke the circuit with a loud pop. You could hear the echo of the booming arc as the sound bounced off the nearby hills…..um…. if there had been hills… It was pretty flat…. being Oklahoma and all. I suppose it was bouncing off of the Power Plant and maybe some trees off in the distance. Well. Anyway. It did echo for a while.
After my first experience in the substation, I decided that substations were one of the neatest places to be. I later became certified as a switchman (multiple times, as you had to renew your certification every 2 or 3 years). Eventually becoming a Switchman trainer. Later when I was with my girlfriend, and even after she became my wife, and we would drive by a substation, I had to be careful not to run off the road since I was usually straining my neck to get a closer look at the substation.
This would result in Kelly become agitated (jokingly of course) that I was paying more attention to the substations than her. To this day, when we pass a substation, my wife Kelly will still let out a “hmmph” when I exaggeratedly ogle a passing substation. I mean…. Can you blame me?
Well. Throughout the years, Substation switching became more and more safe. When I first began switching, we would just wear High Voltage rubber gloves and maybe a face shield. Later we had to wear an Arc Flash Protective suit just in case something blew up:
One time one of the switches broke and exploded in the 345 KV substation and we found a large piece of insulator 200 yards away. This suit wasn’t going to protect you from that. It was only going to keep you from being burned if there was a flash explosion.
In the early 1990’s there was what was known as the “EMF Scare”. That was the belief that the high voltage electric lines caused Leukemia. It was true that children in cities that lived near high voltage electric lines had a higher risk of having Leukemia than the general population. It also happened that these High Voltage lines ran right down major roadways, so that these same children were breathing a lot more exhaust from the cars and trucks on the road than your average person also.
Anyway. When we worked in the substation we all knew that we were being bathed in electricity. If I took my volt meter and dropped one end to the ground and held the other end up by my head, it would peg my meter out at 1000 volts. One day in the evening when it was time to go home, Scott Hubbard and I were delayed because a fuse block had burned up in a breaker panel in the 345 KV substation.
It was drizzling at the time, so you could hear the electricity about 30 feet above our heads crackling and popping. Scott and I were standing behind the pickup truck looking for spare parts in my tool bucket and I had poured out some nuts, bolts and screws onto the bed of the truck. As we were sifting through them looking for the parts we needed, both of us were thinking that I must have had some metal shavings mixed in with the nuts and bolts. When we would move them around we kept feeling like we were being stabbed by metal shavings….. It turned out that it was just sparks jumping from the truck to our fingers.
10 years after my first encounter in a substation, while I was on the Confined Space Rescue team, we had to be out at the plant at night because some people were working in the condenser and the Confined Space Rescue team had to be on site. So, while we were there, we were doing things like cleaning up shop and stuff. Ray Eberle was working with me, and he asked me if I had ever heard about holding up a fluorescent light in a substation and having it glow.
I told him that I had, and it does glow. We went to the electric shop where I retrieved a couple of new 4 foot fluorescent lamps and we headed to the 345 KV substation around midnight.
When we arrived, we climbed out of the truck, and I demonstrated how just by holding the fluorescent tube upright, it would light up:
Ray was fascinated by this, and was noticing how the tube would light up from the point where you were holding the tube on up. As he was experimenting with this new found knowledge, there was an odd popping sound that would occur about every 5 seconds. I was standing there watching Ray in the dark. Ray finally asked me…. “Where is that popping sound coming from?” I pointed down to his shoes and said. “There are sparks jumping from your shoe down to the ground.”
Looking down at his shoe in the dark, Ray could see about an inch long spark jumping from his shoe down into the large gravel we were standing on. He was startled by this and decided that he had enough scientific lessons for one night. So, we climbed back in the truck and headed back to the plant.
Anyway. During the time that we were having this EMF scare (EMF by the way stands for Electromotive Force), there had been some movie or a 60 Minutes episode on TV about it and it was causing a stir. So, people from Corporate Headquarters were going around trying to educate us about it. One way they did this was to show us how low the levels of EMFs were in the plant.
Well. You can’t convince an electrician that we aren’t constantly being bathed in electricity when we are out in the substation, because we all knew better. This guy came around with a special EMF gun just to show us how the plant was safe… We had a meeting where the engineers agreed that we hardly had any EMFs in the plant. The highest EMFs were found in a drill that mounted horizontally using an electromagnet.
When I heard this, I became skeptical of these findings. And the horizontal drill made me even more suspicious. Not that I minded the EMFs. I found them rather refreshing. They seemed to line up all my thought bubbles in my brain so that I could think better. Kind of like “magnet therapy”.
Then a couple of weeks later my suspicions were verified. Doug Link came down to the electric shop with a guy from Oklahoma City that was going to go with me out to the Substation to measure the EMF levels. — OK. I thought…. Let’s see what happens now… Because I already knew the EMF levels in the Substation just by my licking my finger and sticking it in the air…
The guy from Corporate Headquarters took out a roller with a handle much like you would have to measure long distances. Only this had a couple of probes sticking out from either side horizontally. — Now…. Horizontally is the key, and that’s why when they said the Horizontal drill had the most EMFs in the plant, I became suspicious in the first place.
You see…. EMFs have direction. The two probes on the instrument that the man was wheeling around the substation were parallel with the high voltage lines. Therefore, you wouldn’t measure EMFs between the two probes. If the probes had been turned vertically (up and down), I am sure that the voltage (and the EMFs) would have blown the circuitry in the instrument. I say that because the guy that was wheeling this thing around the substation was being very careful not to tilt it one way or the other.
My suspicions were further confirmed when we were in the relay house looking at the results from when he circled the large transformer between the 189 and the 345 subs, and there was a large spike in EMFs at one spot. When we went to look at that spot, it was at the point where the high voltage bus turned down to go into the transformer…. Just like the Horizontal drill…. The direction was across the probes. You see…. EMFs are perpendicular to the flow of electricity. Or straight down from an overhead line. I mean… duh. You had to hold the fluorescent light upright to make it glow….
Well. I thought…. What do I do? Here is a guy trying to pull the wool over our eyes to make us believe that there aren’t any EMFs out there. I felt insulted. On the other hand, I didn’t care about the EMFs. I liked the EMFs. So, after looking at Doug Link straight in the eyes with an astonished look of disbelief that this guy thought we were so gullible to believe this magic act, I decided to let it go. Let him think he relieved our worry that didn’t exist in the first place. Why ruin his day. He had to drive 70 miles back to Corporate Headquarters. Why should he go all that way back thinking that he failed in his mission? So, all I could do was smile.
Anyway. Tim Foster, the 10 year old boy that was with his father, Charles Foster the first time I went to the substation to go switching, later grew up and became an electrician himself. Not only did he become an electrician, but he became an electrician in the same electric shop where his father had worked for 30 years. He works there to this day, and I’m sure that Tim now has an occasion to go switching in the same substation where I first met him. Bathing in the same EMFs. Feeling the same thrill when you open a 345 KV air switch with a loud Pop!
Replies from Previous Post
I do think substations look cool 🙂
Holy Cow! I am learning a lot about Power Plant Stations. This was very good!😊👍
I guess there has been some progress. We have 500KV lines bringing power into northern Virginia from West Virginia. People complain they are eyesores. Of course, if we we had enough sense to generate the power locally, we would not need 500KV lines 200 miles long.
The shoe sparks seem like the most wondrous part of all this. A fluorescent tube lighting up is kind of the expected effect; shoes, that’s different.
Yeah. The shoe sparks surprised me just as much as it did Ray. I’m just glad that he didn’t go up in flames. I knew it was just a static charge, but a charred Ray would have ruined the entire evening.
Yow! And I thought getting a 400-volt shock (DC, fortunately) when I was a teenager was frightening!
Moon Walk in a Power Plant Precipitator
Originally Posted May 25, 2013;
Just because there isn’t any smoke pouring out of the smoke stacks at a Coal-fired Power Plant, it doesn’t mean that the plant is offline. The power plant where I worked as an electrician in north central Oklahoma had two large Buell (later GE) electrostatic precipitators. This is what takes the smoke out of the exhaust. The smoke is referred to as “Fly Ash”. The electrostatic precipitator when running efficiently should take out 99.98% of the ash in the exhaust. When running with excellent efficiency, the exhaust can have less ash than dust in the air (or 99.999%).
Sonny Kendrick, the electric specialist and Bill Rivers an electronics whiz were my mentors when I joined the electric shop. These two Power Plant Men taught me how to maintain the precipitator. I wrote about the interaction between these two men in the post: Resistance in a Coal-Fired Power Plant. It is funny to think, 30 years later that the skills they were teaching me would determine my career for the next 18 years. You see….. I later became the Precipitator guru of the power plant. I once thought it was sort of a curse to become good at one thing, because then you were kind of expected to do that the rest of your life.
When I first joined the electric shop and they were deciding who was going to fix all the manhole pumps, the electrical A Foreman replied by saying, “Let Kevin do it. He likes to get dirty.” At that point… I think I understood why they really wanted me in the electric shop. Charles Foster had mentioned to me when I was a janitor and he had asked me if I would consider being an electrician because I cleaned things so well, and a lot of being a Power Plant electrician involved cleaning… Now those words took on their full meaning.
I knew I was destined to work on the precipitator from the beginning. Sonny had been banished to work on only the precipitator, as Bill Rivers had made clear to me when I was still a janitor (see the power plant post: Singing’ Along with Sonny Kendrick). I was his chance to be lifted from the curse that had been placed on him by our Electrical Supervisor, Leroy Godfrey. I had accepted that. I knew that I would eventually be the one to maintain the precipitators from day one.
So, here I was… One month before becoming an electrician, I had a near death experience inside the precipitator (See the post: Angel of Death Passes by the Precipitator Door). Now I was going into the precipitator again with Bill Rivers. I think at that time we were just wearing half-faced respirators and no fly ash suit. Just a rain suit.
Not a lot of protection….
I followed Bill Rivers into the precipitator while it was offline for overhaul. I had my flashlight securely strapped around my neck with a string. I had a small notepad with a pen tied to it also around my neck for taking notes.
So, as Bill entered the dark cavern of the precipitator, I found that we had just entered a new world. It was dark… Like the dark side of the moon. We were at the intake of the precipitator and we were walking on top of the ash as it was more like sand at this point. We just left footprints where we only sank about 2 inches into the pile of ash that had built up there.
Bill took his flashlight and shined it up between two sets of plates that are exactly 9 inches apart. He swung the light up toward the top of the precipitator 70 feet above. At first as the light was reflecting on all the white ash, I was blinded to the detail that Bill was trying to show me. Eventually I realized that he was pointing his flashlight at a clip. There was some kind of a clip that held one plate in line with the next.
Once I had confirmed to Bill that I saw where he was looking, he lowered the flashlight to about 45 feet above us, where there was another clip. Then even lower. About 10 feet above us. A third clip. — Now at this point… I was almost ready to resign myself to another lesson like the one I had learned from Ken Conrad as he had poured his heart and soul into his description of how to lay the irrigation hose and position the water gun 3 years earlier (See, “When a Power Plant Man Talks, It pays to Listen“), then I remembered…. “I know this is boring… but you have to learn it….” A Phrase that I made good use of 15 years later when I was teaching switching to a group of True Power Plant Men that would find themselves equally bored with the necessary material they had to learn.
Bill explained….. Each clip must (and he emphasized “Must’) be aligned with the next plate. Every clip must be in their place. Don’t start up this precipitator until this is so. Ok. I understood…. Let’s see… there are three clips between each of the four plates… or 9 clips per row…. and there were 44 rows of plates for each section…. and there were 6 sections across the precipitator, and 7 sections…. hmmm… that added up to oh… only 16,632 clips that I needed to check during each overhaul… ok… I took a note on my notepad…
Bill explained….. Clean each insulator. there is one on the side of each bottle rack holding all the wires in place.There were only 4 for each 2 hoppers. there were 84 hoppers, Great. Only 168 insulators on the bottle racks…. Then he pointed out that there were also insulators on the precipitator roof. two on each section over each pair of hoppers… One on the tension house on one connected to the transformer, or 336 more… making a total of 504 insulators that need to be inspected and cleaned during each overhaul.
Bill explained…. you need to check each of the wires to make sure they aren’t caught on a clip or broken. Let’s see…. there were 44 rows of wires in each section… with 16 wires in each row…. and there were 6 sections across each set of hoppers…. that came out to exactly 29568 wires that needed to be inspected during each overhaul.
Bill explained…. each rapper on the roof needs to be tested to make sure they are rapping with the correct force. That meant that they each needed to lift at least 6 inches before they dropped the 15 pound slug (to knock the ash off of the plates into the hoppers below. Hmm… For each 4 hoppers, there were 6 rows of 12 rappers each. There were two sets across the precipitator and there were 7 sets of rappers. In other words…. there were 672 rappers on the roof of the precipitator.
Bill explained…. each vibrator on the roof needs to be calibrated to provide the maximum vibration to the wires inside the precipitator in order to make sure they cleaned the wires of any ash buildup as they are responsible for delivering the static electricity to the precipitator that collects the ash on the plates. In order to calibrate them, you had to adjust the gap between the main bracket and the magnetic coil to within a few thousands of an inch… I don’t remember the exact setting now… but we used a set of shims to set them correctly. There were 12 vibrators for each of the two sides of each of the seven sections of hoppers. This came out to 168 vibrators that need to be adjusted during each overhaul. Oh. And each vibrator had an insulator connected to the wire rack…adding 168 more insulators.
So, we had 16,632 clips, 672 insulators, 29568 wires, 672 rappers and 168 vibrators that all needed to be in good working order at the end of each overhaul (on each of the two units). Throughout the years that I worked inspecting, adjusting and wrestling with plates, clips and wires, I became personally attached to each wire, insulator, clip, rapper and vibrator. For a number of my 18 years as an electrician, I was the only person that entered the precipitator to inspect the plates, wires, clips and internal insulators. Some of my closest friends were precipitator components. Each diligently performing their tasks of cleaning the environment so that millions of people wouldn’t have to breathe the toxins embedded in the ash particles.
We hired contractors to go into the precipitator to help me. I would spend an entire day teaching them how to wear their full face respirator and fly ash suit…. How to inspect the clips and wires…. how to walk along the narrow beams along the edge of each row of 84 hoppers on each unit to find and repair the things that were not in proper alignment. I would check out all their equipment and give them their safety training only to have them not show up for work the next day.
Contractors would gladly be paid to weld in the boiler hanging from a sky climber in the middle of space 200 feet above the bottom ash hopper, but give them one day in the precipitator and they would rather be thumbing a ride to Texas…. I should have felt insulted… after all this was my home…. Mark Fielder the head of the welders once called it my “baby”. I knew he had never had to endure the walk on the moon when you entered the tail end of the precipitator and found yourself buried waste deep in light fly ash. I told Mark Fielder to not call the precipitator my baby… Not until he could find a contractor that was willing to work alongside me inside it. He apologized. He explained that he meant it with affection.
At the back end of the precipitator, you just sank to the bottom of a pile of fly ash when you stepped into it. The fly ash particles there are less than 2 microns in diameter. That meant that they would infiltrate your filter and bounce around inside your respirator on their way down into your lungs. Building up a permanent wall of silicon in your innards that will be there until the day you die.
I noticed that after a few days of working in the precipitator that I would feel like I had the flu. This would happen after I would smell this certain scent in the precipitator that would develop after the unit had been offline for a week or so. I noticed that when I burped, I could taste that smell in my mouth. I also noticed that if I had to pass some gas, that the smell would also include the smell that I was experiencing in the precipitator.
I didn’t think much about it until one day when I went to the tool room and Bud Schoonover told me that they were out of the regular hepa-filters for my respirator. So, instead he gave me a pair of organic filters. They had a different carbon filter that absorbed organic particles. I said, “Thanks Bud.” and I headed out to climb into the precipitator to continue my inspection of some 30,000 wires, and 16,000 clips.
To my astonishment, when I used the carbon filters right away, I didn’t smell the acrid smell. The flu symptoms went away, as well as the smelly burping flavors. Not to mention (oh.. but I am) the passing of gas without the additional smell of precipitator internals…. Crazy as these seems… I became obsessed with finding out why.
You see… at the same time that this particular smell arose in the precipitator, any ash that was built up on the plates would clump up and with a simple bang on the plates with a rubber mallet would cause all the ash to fall off leaving a perfectly clean plate. Before this smell was there, you could bang on the plates all day, and the ash would remain stuck to the plates like chalk on a chalkboard.
I had our famous chemist (well…. he was famous to me… see the post: A Power Plant Doctor Does a Jig in a Puddle of Acid), come out to the precipitator to give it a whiff. He said it had some kind of a sewer smell to it…. I didn’t expand on my personal sewer experience I had had with it, though I did tell him about the burping….
He encouraged me to have the safety department come out and test it to see if they could identify the chemical that was causing this smell. You see…. It was important to me because if we could pin this down, then we might be able to inject a substance into the precipitator while it was online to clean it without having to bring the unit offline if the precipitator was to become fouled up.
There was a young lady from the safety department (I think her name was Julia, but I can’t remember her full name). She came from Oklahoma City and gave me some monitors to put in the precipitator while the smell was present to try to track down the chemical. Unfortunately, we never found out what it was. In the meantime, I had learned all I could about Van Der Waals forces. This is the week molecular force that would cause the ash to stick to the plate.
I studied the chemical makeup of the ash to see if I could identify what chemical reactions could take place… Unfortunately, though I knew the chemical makeup of the ash, the chemicals were bound in such a way from the high temperatures of the boiler, that I couldn’t tell exactly how they were arranged without the use of an electron microscope. I wasn’t about to go to Ron Kilman (who was the plant manager at the time) and ask him for one. I had already upset him with another matter as you will learn in a much later post.
So, I just continued wearing the organic filters. This gave me the strength to continue my inspections without the flu-like symptoms. Later on, I taught Charles Foster and Scott Hubbard how to maintain the precipitator. When I finally left in 2001, I know I left the precipitators in competent hands. They knew everything I did.
One main lesson I learned from my experience as the precipitator guru is this….. You can be a genius like Bill Rivers or Sonny Kendrick….. when you are given a particular job to do and you do it well, you are usually pigeon-holed into that job. One of the main reasons I write about Power Plant Men is because they are for the most part a group of geniuses. At least they were at the plant where I worked in North Central Oklahoma. They just happened to stumble onto the jobs that they had. They would probably spend the rest of their working career doing what they did best…. never moving onto something where their genius would shine and others would know about them… That is why I write about them.
Do a job well, and you will be doing it until the day you die…. that’s what it seemed to be. I didn’t feel like I was banished to the precipitator as Sonny Kendrick was by Leroy Godfrey, who did it consciously. No. I was “banished” to the precipitator for the next 18 years because I was good at it. I loved it. I may have mentioned before, but I had a personal relationship with the 168 precipitator control cabinets.
I had carefully re-written the programs on each of the eprom chips on the Central Processing Unit in each cabinet to fit the personality of each section of the precipitator. I had spend hours and hours standing in front of each cabinet talking to them. Coaxing them. Telling them that they could do it with my handheld programmer in hand…. helping them along by adjusting their programming ever so slightly to give them the freedom that they needed to do their job. If they had been human……. I would have given them names like “Mark”, or “Thomas”, or “Millie”. Instead, I knew them as 2E11 or 1B7. But they were each my friends in their own way.
You see… I look at friends like this…. It’s not what they can do for me…. It’s “what can I do for them?” I have had some precipitator cabinets that I have given extra attention because they seemed to need it more than the others, only to have them crap out on me. I wouldn’t have done anything different if I had known all along that they wouldn’t pull through.
I have my own understanding of who I should be. My wife may call it “stubbornness”, and that may be what it is. I would try and try to coax a control cabinet to do what it was created to do, only to have it fail over and over again…. What was I going to do? Give up? How could I do that to a friend? I would tell the cabinets that were especially difficult (when I was alone with them – which was usually), “You create your own Karma. That isn’t going to change who I am.”
Today I am called an IT Business Analyst. I work for Dell Computers (now I work for General Motors). It is an honor to work for a company that serves the entire world. I see the same pattern. When you do something well, when you love your work and become attached to it, you become pigeon-holed into a particular job. You become invaluable. Almost irreplaceable. People look to you for answers. They are comforted to know that someone who cares is taking care of business. I am glad to be able to serve them.
Weeks before I left the power plant, Bill Green, the plant manager asked Jim Arnold (the supervisor over maintenance) again….. “What degree is Kevin getting again?” Arnold replied, “Oh. nothing anyone wants.” (an MIS degree from the college of business at Oklahoma State University). Bill was concerned that if I left they wouldn’t have anyone to take care of the precipitators. No. I wouldn’t do that. Like I said… Each of the 168 precipitator control cabinets were my friends…. I had given them the best guardians I could find… Scott Hubbard and Charles Foster.
Recently Charles Foster has retired from the plant, and his health is not good. His son, Tim Foster has taken his place. One of the last things Tim has told me recently was that he was going with Scott Hubbard to work on the precipitator. I wanted to reply back to his e-mail… take care of my friends Tim…. I know Scott understands….
Each clip, each wire… I often dream about them…. Row after row….. looking 70 feet up, then down… swinging my flashlight in the darkness. Betty, Tom, Martin…. all the clips on this plate are in their place…. Sandy, David, Sarah… lined up correctly… Fred, Chuck, Bill…. good… good… next row….
Lifecycle of a Power Plant Lump of Coal
Originally posted August 16, 2013:
Fifty Percent of our electricity is derived from coal. Did you ever wonder what has to take place for that to happen? I thought I would walk through the lifecycle of a piece of coal to give you an idea. I will not start back when the it was still a tree in a prehistoric world where dinosaurs grew long necks to reach the branches. I will begin when the large scoop shovel digs it out of the ground and loads it onto a coal truck.

The coal is loaded onto trucks like these before it is dumped onto the train cars. This photo was found at http://www.gillettechamber.com/events/eventdetail.aspx?EventID=2827
The coal for the power plant in North Central Oklahoma came from Wyoming. There were trains from the Black Thunder Mine and the Powder River Basin.
It’s a long ride for the lump of coal sitting in the coal train on it’s way to Oklahoma. Through Nebraska and Kansas. It’s possible for the coal to be visited by a different kind of traveler. One that we may call “A tramp.” Someone that catches a ride on a train without paying for the ticket.
One time a tramp (or a hobo, I don’t remember which), caught a ride on one of our coal trains. They forgot to wake up in time, and found their self following the lumps of coal on their next phase of the journey. You see. Once the coal reached the plant, one car at a time enters a building called the “Rotary Dumper”.
As each train car enters the dumper four clamps come done on the car and it rolls upside down dumping the coal into a bin below. Imagine being a tramp waking up just in time to find yourself falling into a bin full of coal. with a car full of coal dumping coal on top of you. One coal car contained 102 tons of coal (today they carry 130 tons). Today one train contains 13,300 tons of coal. This is over 26 million pounds of coal per train.
Miraculously, this passenger survived the fall and was able to call for help or someone saw him fall. He was quickly rescued and brought to safety. Needless to say, the tramp went from being penniless to being, “comfortable” very quickly. I don’t know that it made the news at the time. I think the electric company didn’t want it to become “viral” that they had dumped a hobo into a coal bin by accident. Well. They didn’t know what “going viral” meant at the time, but I’m sure they had some other phrase for it then.
Ok. Time for a Side Story:
Since I’m on the subject of someone catching a clandestine ride on a train, this is as good of a place as any to sneak in the tragic story of Mark Meeks. Well. I say it was tragic. When Mark told the story, he seemed rather proud of his experience. You see. Mark was a construction electrician. He hired on as a plant electrician in order to settle down, but in his heart I felt like he was always a construction electrician. That is, he didn’t mind moving on from place to place. Doing a job and then moving on.
Mark explained that when he was working at a construction job in Chicago where he worked for 2 years earning a ton of overtime, he figured that by the time he finished he would have saved up enough to buy a house and settle down. He was married and living in an apartment in Chicago. He didn’t spend much time at home as he was working 12 hour days at least 6 days each week. He figured that was ok, because when he was done, he would be set for life.
Unknown to him at the time, each morning when he woke up before the crack of dawn to go to work, his wife would drive to O’Hara airport and catch a plane to Dallas, Texas where she was having an affair with some guy. By the time Mark returned from work 14 hours later, she was back home. Each day, Mark was earning a ton of overtime, and his wife was burning it on airline tickets.
When the two years were over, Mark came home to his apartment to collect his wife and his things and go live in peace in some small town some where. That was when he learned that his wife had been having the affair and using all his money to do it. She was leaving him. Penniless.
Completely broke, Mark drifted around for a while. Finally one day he saw a train that was loaded down with wooden electric poles. Mark figured that wherever those poles were going, there was going to be work. So, he hopped on the train and traveled all the way from Minneapolis Minnesota riding in the cold, wedged between some wooden poles on one of the cars on the train.
The train finally arrived at its destination somewhere at a port in the Gulf of Mexico. I don’t remember if it was Mississippi or Louisiana. He watched as they unloaded the poles, waiting to see what jobs were going to be needed for whatever the poles were for. He watched as they took the large wooden poles and piled them up in the ocean. They were using them to build up the shoreline. There were no jobs.
It is when you have been beaten down to the point of breaking when you reach a very important point in your life. Do you give up, or do you pick yourself up and make something of yourself? Mark chose the latter. He was a natural fighter. He eventually ended up at our plant as contract help, and then was hired as a plant electrician.
End of side story.
Let’s follow the lump of coal after it is poured out of the coal train in the dumper…
The coal is fed onto a conveyor belt. Let’s call this Conveyor 1, (because that is what we called it in the plant). This has a choice to feed it onto belt 2 which leads up to the stack out tower, or it can feed the other way to where some day it was planned to add another conveyor with another stackout tower. This was going to go to a pile of coal for two other units that were never built.
Anyway, when the coal drops down on Conveyor 2, way under ground, it travels up to the ground level, and continues on its way up to the top of the stackout tower where it feeds onto Belt 3. Belt 3 is a short belt that is on an arm that swings out over the coal pile. The coal is fed onto the coal pile close to the stack out tower. I suppose it is called stack out, because the coal is stacked up next to the tower.

A view of the coalyard from the top of the Smoke Stack. The tower with the conveyor running up to the top is the stack out tower. Belt 3 is the arm pointing to the right in this picture
Anyway, there are large dozers (bulldozers) and dirt movers that pickup the coal and spread it out to make room for more coal from more coal trains. As mentioned above. One train now carries 26 million pounds of coal.
the coal that is spread out on the coal pile has to stay packed down otherwise it would spontaneously combust. That is, it would catch on fire all by itself. Once coal on a coal pile catches on fire it is impossible to “reasonably” put out. You can spray all the water on it you want and it won’t go out. When a fire breaks out, you just have to drag the burning coal off of the pile and let it burn out.
In order to keep the coal from performing spontaneous combustion, the dirt movers kept it packed down. As long as the coal is packed tight, air can’t freely reach the buried coal, and it doesn’t catch fire. So, dirt movers were constantly driving back and forth on the coal pile to keep the coal well packed. Even on the picture of the coalyard above from the smoke stack, you can see two pieces of heavy equipment out on the coal pile traveling back and forth packing the coal.
Anyway, the next phase in the life of the lump of coal happens when it finds itself directly under the stack out tower, and it is fed down by a vibratory feeder onto a conveyor. In our plant, these belts were called, Belts 4, 5, 6 and 7. Belts 4 and 5 fed onto Belt 8 and belts 6 and 7 fed onto belt 9.
Belts 8 and 9 brought the coal up from under the coal pile to the top of the Crusher tower. In the picture above you can see that tower to the right of the stack out tower with the long belts coming from the bottom of the tower toward the plant. The crusher tower takes the large lumps of coal that can be the size of a baseball or a softball and crushes it down to the size of marbles and large gumballs.

Coal conveyor carrying coal to the coal silos from the coalyard. This is the size of the coal after it has been crushed by the crusher
From the crusher tower the lump of coal which is now no more than a nugget of coal travels from the coal yard up to the plant on belts 10 and 11.
Up at the top of this belt in the distance you can see another tower. This tower is called the Transfer tower. Why? Well, because it transfers the coal to another set of belts, Belt 12 and 13. You can see them going up to the right to that tower in the middle between the two boilers.
The tower between the two boilers is called the Surge Bin tower. That basically means that there is a big bin there that can hold a good amount of coal to feed to either unit. At the bottom of the white part of the tower you can see that there is a section on each side. This is where the tripper galleries are located. There are two belts in each tripper, and two belts that feed to each tripper belt from the surge bin. So, just to keep counting, Belts 14 and 15 feed to unit one and belts 16 and 17 feed to unit 2 from the surge bin. then Belts 18 and 19 are the two tripper belts that dump coal into the 6 silos on unit one, while belts 20 and 21 feed the silos on unit 2.
Once in the Coal silos, the coal is through traveling on belts. The silos are positioned over things called bowl mills. The coal is fed from the silo into the bowl mill through something called a Gravimetric feeder, which is able to feed a specific amount of coal into the bowl mill. This is the point that basically decides how hot the boiler is going to be.
Once the coal leaves the gravimetric feeder and drops down to the bowl mill, it is bound for the boiler. The gravimetric feeder is tied right to the control room. When they need to raise load more than just a minimal amount, a control room operator increases the amount of coal being fed from these feeders in order to increase the flow of coal into the boiler….. I don’t know… maybe it’s more automatic than that now…. The computer probably does it these days.
When the nugget of coal falls into the bowl mill the long journey from the coal mine in Wyoming is almost complete. Its short life as a nugget is over and it is pulverized into powder. The powder is finer than flour. Another name for a bowl mill is “Pulverizer”. The coal comes from the Powder River Basin in Wyoming and just before it is consumed in Oklahoma it really does become powder.
Big rollers are used to crush the coal into fine particles. The pulverized coal is blown up pipes by the primary air fans and blown directly into the boiler where they burst into flames. A bright orange flame. The color reminds me of orange sherbet Ice cream.
At this point an incredible thing happens to the coal that so many years ago was a part of a tree or some other plant. The chemical process that trapped the carbon from the carbon dioxide millions of years earlier is reversed and the carbon is once again combined to the oxygen as it was many millennium ago. A burst of heat is released which had been trapped after a cooling effect below the tree as it sucked the carbon out of the environment way back then.
The heat is transferred to the boiler tubes that line the boiler. The tubes heat the water and turn it into steam. The steam shoots into the turbine that turns a generator that produces the electricity that enters every house in the country. The solar power from eons ago that allowed the tree to grow is being used today to power our world. What an amazing system.
To take this one step further, the carbon dioxide that is released into the atmosphere today is replenishing the lost carbon dioxide from many years ago. Back when plants could breathe freely. Back before the carbon dioxide level was depleted almost to the point of the extinction of plant life on this planet. Remember, what we look on as a pollutant and a poison, to a plant is a chance to grow. The Sahara desert used to be a thriving forest. Maybe it will be again some day.
So, there is the question of global warming. We humans are so short sighted sometimes. We want to keep everything the same way we found it when we were born. We try desperately to keep animals from becoming extinct. We don’t think about the bazillions (ok, so I exaggerate) of animals that were extinct long before man arrived. It is natural for extinction to occur. That is how things evolve. We are trying to keep a system the same when it has always been changing.
Years from now we may develop ways to harness the energy from the sun or even from the universe in ways that are unimaginable today. When that time arrives, let’s just hope that we remain good stewards of the world so that we are around to see it. I believe that the use of fossil fuels, (as odd as that may seem) is a major step in reviving our planet’s natural resources.
Comments from the previous repost:
Glad Mark fought the good fight, still a sad story.
Antion August 21, 2014
Great read. I love knowing how things work. As I read the sad story of the traveling electrician, I kept wondering if she could have pulled that off in today’s world of air travel.
when I went to the Christian College in Eugene Oregon, they forced me to take a course in biology at the University of Oregon. I willingly sat and listened to the mix of science and evolution. I admit their perspective was intriguing.
at the end of the class, the last day, the instructor asked each one of her students to tell how the class had affected their thinking.
each one gave the politically correct answer in a variety of form. all the while I sat joyfully waiting my turn.
my response hushed the class for a moment. (it’s been some decades ago so I have to paraphrase but let it be sufficient) “I’m impressed with all the material you’ve covered. it’s astounding to think of all the things that were. but for me this class has only glorified my God. because I realize that in his wisdom he created gasoline for my car.”
you’ve covered a lot of material in your post. and I’m impressed at your diligence to complete it. I thank God for His faithfulness that he has put into you. may He prosper your testimony for the glory of His Holy Son.
By His Grace
(please overlook the syntax errors in this reply it was generated on a mobile device)
We processed several hobo’s through our coal system, & injured a few, but none ever got anything from the power company. I remember we would always worried about finding a chunk of scalp or something in the grating where the tripper car drops coal down into the silo. One especially memorable event was when a coal yard operator found a down vest jacket on the coal pile and bragged about how lucky he was to find this jacket, the size even fit, but the jacket did smell a little funny. yes it was ripped off the body of a hobo by the plow above conveyor one & shot out onto the coal pile by the stackout conveyor.
It was always unnerving to have a pull cord go down in the middle of the night deep down in the coal trestle, while the belts were shut down. You’d have to go down there alone, in the dark & reset the pull cords, so the belts could be started later when needed. You knew it wasn’t a trick because the whole crew had been up in the control room together eating dinner or something. You always wondered if you might run into a real hobo – or the ghost of one.
Back to Plain Ol’ Power Plant Back Pain
Does anyone know where the phrase, “Step on a Crack, Break Your Mother’s Back” came from? I’m sure there is a story behind that one. Maybe even a lot of different origins. I can distinctly remember a day in the Power Plant when a Power Plant Man stepped on a crack and broke his own back.
I remember looking out of the seventh floor window of my friends dorm room when I was a freshman in college watching students returning from classes about 6 months before the Power Plant Man broke his back. I was watching closely to see if any of them were purposely missing the cracks as they walked down the sidewalk toward the entrance. Out of about 20 people two of them purposely stepped over every crack in the sidewalk.
In the post “Power Plant Safety is Job Number One” I told the story about four of us were carrying a very long extension ladder through the maintenance shop at the Coal-fired Power Plant in North Central Oklahoma one summer morning in 1979 when Tom Dean stepped on a crack (well, it was a cracked piece of plywood that had been placed over a floor drain because the floor grate was missing), and when as he stepped on it, he lost his balance enough to twist himself around. By the time he stopped twirling, he was in immense pain as he had destroyed any chance for comfort for the next 6 months.
So, I could understand the dangers of stepping on cracks even when they appear to be insignificant. What that has to do with my mom I’m not sure. However, one day when my sister was walking with my mom on the campus of Oklahoma State University, my sister may have stepped on a crack at that time, as well as my mom, which sent her plummeting the five feet to the ground resulting in a broken hip.
This makes me wonder that since the times have changed, it may be time to change the saying to something else. Maybe something like “Smoke some crack, break your parent’s piggy bank” would be more appropriate for these times. Oh well, I’ve never been much of a poet.
Anyway, back to the subject of back pain.
The number one favorite topic during Safety Meetings at the Power Plant was Back Safety. We were told (and rightly so) that accidents where the back is injured cost the company and the employee more than any other injury. Once you really hurt your back, you can expect to have back pain the rest of your life. It only takes one time. — Times may have changed since 1979, so that now you can have some excellent back surgeries to help correct your back injuries. Even with these, you will never be completely free from back pain.
In the Power Plant Post, “When Power Plant Competition Turns Terribly Safe” I told a story about how our team came up with hundreds of safety slogans in an attempt to win the coveted Power Plant Safety Award Pizza at the end of the year. A Pizza that continued to allude us for 2 and a half years. During our meetings to invent the most catchy safety slogans, Andy Tubbs (or was it Ben Davis) came up with a slogan that said, “Lift with your legs, not your back. Or you may hear a lumbar crack”. — See. I wish I could come up with doozies like that! This takes the idea of a crack and a back and turns it around, if you think about it. Now instead of a crack hurting your back, its about a strain on your back creating a crack. — I know… probably just a coincidence….
One morning Sonny Kendrick, our electric specialist at the time, while sitting in the electric lab during break, let out a whopper of a sneeze. When he did, he suddenly knew what it felt like to experience tremendous back pain. One sneeze and he was out of commission for many weeks.
One day, when Charles Foster, my very close friend, and electric foreman, were talking about back pain, I realized that a good portion of Power Plant Men suffered with back pain. — At the risk of sounding like Randy Dailey teaching our Safety Class, I’m going to repeat myself, “You only have to hurt your back one time to have a lifetime of back pain.”
The company would focus a lot of their safety training around the importance of proper lifting techniques in order to prevent back accidents (not to be confused with backing accidents which is when you back out of a parking space — which is also a common accident — though usually less severe — unless you happen to be a Ford Truck). We would learn how to lift with our legs and not with our back.
You see, it wasn’t just that one sneeze that caused Sonny’s plunge into Back Pain Hell, and it wasn’t just stepping on the cracked plywood floor drain cover that broke Tom’s back (I know “Broke Back” is a misnomer since the back isn’t exactly broke). The problem is more systemic than that. This is just the final result of maybe years of neglecting your back through various unsafe activities.
The two important points I remember from watching the safety videos during our monthly safety meetings was that when you slouch while sitting, you put a needless strain on your lower back. So, by sitting with good posture, you help prevent a future of pain. The second point I remember is that you need to keep your stomach muscles strong. Strong stomach muscles take the weight off of your back when you’re just doing your regular job.
The big problem that finally causes the disc in your lumbar region of your spine to break after neglecting it through these other means is to lift a heavy object by bending over to pick it up instead of lifting the load with your legs. So, the phrase that we always heard was “Lift with your Legs. Not your Back”. You do this by bending your knees instead of just your hips.
Ok. I know you are all thinking the same thing I am thinking (right? Yeah. You are). Bending both your knees and hips saves your back. Isn’t there another word for when you bend your knees and hips at the same time? — Yeah. Yet, I don’t remember hearing it during any of our Safety Videos. — Oh. It was implied, they just never came out and said it…. What they really mean to say is, “Squat”. Yeah. “Squat”. When you bend your knees and hips, isn’t that “Squatting?”
Times have changed…. I mean….. Doesn’t everyone today have a “Squatty Potty”?
Don’t we all have “I ‘heart’ 2 Squat” tee-shirts?
To learn more, you can watch this video:
This doesn’t just work with the Squatty Potty to help you drop your loads, it also works when lifting heavy loads. So, remember the next time you are going to bend over to pick something up…. Squat instead.
Other lifting tips include keeping the load close to your body and not holding your breath but tightening your stomach muscles, and don’t lift something too bulky by yourself. Don’t twist your body when picking something up, face the load directly. A weightlifter once told me that when you lift, feel the weight on the heel of your feet, not on the balls of your feet.
Randy Dailey, the Safety Guru of our Power Plant, and an expert machinist invented a pen that you could put in your pocket protector in your shirt pocket that would alert you by beeping if you leaned over too far. It was an ingenious device to remind you to lift with your legs instead of your back.
In one of the safety videos we watched about back safety, there was a short stalky scientist that explained the dynamics of lifting and how easy it was to put a tremendous strain on your back by leaning over and picking something up. He said that “People choose the more simple way to pick something up. Not the easiest way.”
Doesn’t that sound like the same thing? Isn’t the simplest way the easiest way? Well. You would think so, but it isn’t always the case. This Doctor of Back-ology went on to explain his statement. He explained that the simplest way to pick up an object on the floor is to bend at the hip. It is one movement. Bend at the hip. — However…. The easiest way to pick up the object is to bend both your knees and your hips to pick up the object. Since you keep your back straight and you lift with your leg muscles that are the most powerful muscles in your body. He avoided using the word, “Squat”, but that’s what he meant.
In order to reduce back injuries at the plant, the company made back belts available at the plant.
Note that this picture not only shows a Power Plant Man wearing a Back Support Belt, but he also is wearing the right kind of Tee-Shirt. It has a vest pocket where you can put a Pocket Protector for your little screwdriver and your Back Alert Pen created by Randy Dailey.

Our Pocket Protectors were freebies given to us by vendors so they would have advertisements on them like these
The use of back belts was new around the late 1980’s. Even though we had them available through the tool room when we wanted them, few people wore them. The warehouse team wore them a lot. I suppose that is because they were lifting and moving things all day long.
In the warehouse Bob Ringwall, Darlene Mitchell and Dick Dale used to have back belts on when I would visit the warehouse to pick up a part, or to visit my friends. I don’t remember if Bud Schoonover would wear a back belt. How’s this for a slogan…. “Be a Safety Black Belt…. When Lifting, wear your Back Belt.” I know. I should stop when I’m ahead, only I’m so far behind now I may never catch up.
There was a question about whether wearing a back belt was really a good idea. It was thought that people might tend to substitute using their stomach muscles while lifting with the back belt, resulting in weaker stomach muscles. So we were cautioned not to go around wearing back belts all day long. Only when we were going to be doing a job where we had to do a lot of lifting. I suppose now, after years of research, there is a lot more data to tell us one way or the other. I haven’t heard what the latest injury jury has said on this subject.
Even though I titled this post “…Plain Ol’ Power Plant Back Pain”, there is nothing plain about back pain. I just thought it sounded like a catchy title.
I was lucky enough that during the 20 years I spent working at the Power Plant, I never really hurt my back. To this day, I have been able to avoid living with perpetual pain in my back. — I have been accused of causing pain in other people’s necks. Also, I don’t think the many times that people told me I was a pain in their back side, they were referring to the Lumbar region. I think they meant an area just below the tailbone. I hope that by bringing to their attention the benefits of the Squatty Potty that I have been able to relieve (or prevent) a little of that lower lumbar pain.
Now when someone says, “You don’t know Squat”, you can correct them!
Comments from the original post:
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I can remember getting into a taxi whilst in my late teens, turning in the seat to sling a bag in the back seat, only to pull something in my back. The pain lasted for ages.
These days, it’s arthritis being the culprit. Back pain is as bad as everybody says it is.
Good page 🙂
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Wasn’t the back alert pen given to someone in the garage to try out. Rumor is they didn’t like it because it kept going off all day every time they bent over.
Hmmmmmm
Power Plant Manhole Mania
Originally posted February 1, 2013:
It is vitally important that a manhole cover be round. By just being square or even oval, it could mean death to some unsuspecting electrician. You see, only a perfectly round manhole cover will never be able to fall down into a manhole. No matter how hard you try, you just can’t fit a bigger circle through a smaller circle. An oval or square cover could fall through the hole when turned just right but not a round one. A typical cast iron manhole can weigh up to 500 pounds.

Here is a manhole cover turned upside down. Because of the way it is shaped, when you push the cover over the hole, it falls right into place.
Not long after becoming an electrician, and shortly after the Rivers and the Rose story that I mentioned last week (see the Post “Rivers and Rose in the Power Plant Palace“), we had a cable really go to ground between the main plant and the coalyard. The cable that went to ground was called a 500 MCM cable. What this means is that 500,000 circles of 1 mil (or one milli-inch) in diameter can be put in a circle that is 500 MCM in diameter. A typical 500 MCM cable is good for a 400 amp load at 6900 volts.
For large industrial circuits, 3 phases of electricity are used instead of just one like you have in your house. With three phases of electricity, you have a constant amount of power being applied to the entire circuit at all times. With a one phase circuit, you have zero power 120 times every second. So with any “decent” power circuit, you have 3 phases of electricity.

When you add up the difference betweenvoltages of all three phases at one time, you always equal zero because you have the same amount of positive volts with negative volts at any given time. So, you will find that you always have a constant voltage between all three phases at any time.
The cable that went to ground was the coalyard station power cable. Not only were there three phases of power, but for each phase there were two 500 MCM cables. That means that this circuit was good for 800 amps of power at 6,900 volts. Giving you a capacity of 5.5 Megawatts (or 5 million, 500 thousand watts) of power. These cables were so big that a typical industrial Wire cable chart doesn’t even go this high:

500 MCM cable is also known as 5/0 cable (pronounced 5 aught). The 445 amps for the 4/0 cable are for only 50 volts. We had 6900 volts.
In a Coal-fired power plant, you have a redundant system for everything. So, the coalyard wasn’t completely in the dark. It had just swapped over to the redundant circuit. — This always amused me. In my English and Poetry classes in College I would have points taken off for being “redundant”, but in the power plant this was necessary to keep the plant running at all times.
As I said 15 years later, when I was training operators and electricians to be certified substation switchmen, “I know this is boring, but you have to learn it…” (but that is another story).
So, to make a rather boring lecture shorter, I will skip the part about how we had a hypot from the T&D (Transmission and Distribution) department brought in so big that it had to come in a van. They attached it to the cables to find where the short to ground was located. I’ll skip the part about how it was decided to replace the faulty cables going to the coalyard 1/2 mile away. I’ll also skip the part about how Charles Foster was able to finagle the use of Stanley Elmore’s precious blue Mitsubishi mini-tractor to try to pull the cables from one manhole to the next (the first time anyone outside the garage was able to operate his most beloved tractor…..).
Oh, and I’ll skip the part about how 1000 feet of this cable cost about $10,000 and we had six cable to replace for a cost of about $320,000 just for the cable… I’ll also skip the part about how this little tractor was too small to pull the cables through the manholes from manhole to manhole up to the coalyard, so we sent in for the big guns from the T&D department to use their equipment that pulled the cables through the manholes as easy as pulling the wool over Gene Day’s eyes while playing a joke on him. (Don’t get me wrong…. I know in his heart, Gene Day really appreciated a good joke. Gene Day is one of the best men I have ever been able to call “Friend” — which I would do shortly after playing a joke on him, after I returned to consciousness).
Anyway, after this episode was all over it was decided that something needed to be done about how all the manholes from the plant to the coalyard were always full of water. You see, the manholes were easily deeper than the lake level so water naturally leaked into them. Each of them had a pump in them that was supposed to keep them dry, but somewhere along the line, in the 5 years the plant had been in operation, each manhole pump had failed at one time or other… When pumping out the first manhole, it took days, because as you pumped out that first manhole, water would run from one manhole to the other as you actually ended up pumping out all the manholes down to the point where the cables went from one manhole to the other.
So, none other than the “newbie” was appointed as the keeper of the Manhole pumps. Yep. That would be me. So, for the next few months I spent almost all my times pumping out manholes and repairing all the pumps that had been submerged in water for years. This was my first real job.
This was my real introduction to becoming a real plant electrician (You can see how I really like using the word “real”). The most common job of an electrician was to take a motor that had failed or was scheduled to be overhauled and repair it and put it back in place to continue on it’s “tour of duty”. It’s amazing how you can take a motor that has failed, and you can “rebuild” it and put it back in operation. — This has come in handy at home as the cooling fan motor on the air conditioner unit on your house goes out every few years. I have yet to call an air conditioner man to my current house where I have lived for 11 1/2 years (now 16 years).
I remember that Charles Foster had told me that “paperwork” was very important when it came to motors. A history had to be kept. Certain steps had to be performed before, during and after repairing a motor. It had to be meggared properly (see the post from last week to learn more about meggars: Rivers and a Rose of the Power Plant Palace).
So, I asked Ben Davis if he could show me what I needed to do to fix a motor. His immediate indignant response was, “What? You don’t know how to fix a motor?” My response was, “No, I don’t know. Would you show me?” Ben, who up to that point had presented himself with displeasure at my presence in the shop, suddenly smiled and said, “Sure! Let me show you what you need to do!”
Ben showed me all the steps you go through to repair and “document” a motor repair in great detail. I was glad that I had found that Ben was just putting on a front of disgust at my presence in the Electric shop only to show me at the “proper” time that I had been “misjudging” him as being a grumpy person when he wasn’t really….
I had figured, before this time, that Ben really had a kind heart because I figured that if Diane Lucas and Andy Tubbs, who I both admired greatly considered Ben as a good friend, then he must really be a good guy underneath, even though he was keeping this hidden from me.
I knew the moment he smiled at my response when I told him I really didn’t know anything, that Ben had a kind heart. He couldn’t hide it any longer. If I had asked the same thing to OD McGaha, one of the other B Foremen in the shop, for instance, he would have told me to go to hell. But not Ben.
I have more to tell you about Ben, but I’ll save that for a later post. For now, I’ll just say that though Ben may not have known it during the time I spent as an electrician, he has always been close to my heart. I have always had Ben and his family in my daily prayers from the day that he smiled at me and explained to me how to repair a motor.
So, how does a lone newbie electrician pull a 500 pound lid off of a manhole by himself? Well. He uses a Manhole cover puller of course.
Ok. Our manhole cover puller wasn’t blue like this, but it had a similar shape. With a simple tool like this a 500 pound manhole cover could be popped out of the hole and dragged away. So, I used this tool as my one man crew (myself) went from manhole to manhole, where I pumped each out and lowered a ladder into each hole and disconnecting the drenched motor and brought it back to the shop where I dried it out (using the hot box in the shop that doubled as a heater for lunches), and repaired it and re-installed it.
We had all the manholes in the plant identified. I painted the numbers on each lid with orange paint. It was while I was working in the manholes 15 feet below ground that I appreciated the round manhole. I knew that as long as that manhole cover was round, it couldn’t accidentally be knocked into the hole only to crush me to death below.
Other things were of concern in the manholes where I worked… For instance, many of these holes had been underwater for at least a couple of years, and the entire manhole was covered with a kind of slime. there were also high voltage cables that had splices in some of the manholes, and I remember Gene Roget telling me that he had seen sparks flying off of some of them when they were hypoting the cables looking for the ground. The dank smell of the manholes made you think that there were probably some kind of “swamp gases” in there.
Nevertheless, when I grew weary of dragging the heavy shellacked wooden ladder from hole to hole, I devised a way to climb down into the manholes using the drain pipe from the motor. This was before OSHA had implemented all the confined spaces rules in 1994 that would have prevented me from entering a manhole alone. I was improvising and taking a risk of falling and hurting myself each time I entered a manhole.
I ran into one of the reasons for not leaving a person in a manhole alone one time when I was working in a manhole near the intake house and another crew drove up and parked their truck near the hole I was working in. I remember that while I was working there, I suddenly became nauseous. Not sure why, I climbed out of the hole.
The truck that had been left idling nearby had been emitting toxic fumes that had looked for the lowest place they could settle, and that happened to be in the manhole where I was working. After that, I always kept an ear out for any motor vehicles nearby when I was in a manhole.
Ten years later, in 1994, OHSA added some new laws to the books that made it mandatory to have a “hole watch” stand outside a hole watching you while you worked in a manhole. You even had to have a safety harness tied to a safety hoist so that if you passed out while in a manhole the hole watch could pull you out without having to enter the hole.

This is a special hoist designed to lift a person out of a confined space without seriously injuring someone that is caught on obstacles.
Needless to say. I got my feet wet as an electrician popping in and out of manholes like the gopher in the arcade that you try to bop on the head.
One interesting story that happened during this time happened when Blake Tucker, who had been a summer help with me in the garage, and then later became a summer help in the electric shop, was sitting with me while we were going to fix a pump in manhole 215 (I believe this is the number of the manhole next to the intake where the fly ash pipes go over the intake).
The hole was full of water, and the pump had naturally tripped the breaker….. For some reason I decided to go into the intake switchgear and reset the 120 volt breaker to the pump in the Distribution Panel. When I did. I returned to the hole where Blake was waiting for me. I reached down into the hole with my foot and I kicked the drain pipe that rose from the pump and made a 90 degree turn up close to the entrance.
When I kicked the pipe, the motor actually began running. We could see it 15 feet below us in the clear water running. It was an open face motor, meaning that it wasn’t sealed and made to be a submersible pump, yet it was running under water. A year later we decided that it made more sense to replace all the open motors with submersible pumps.
Blake Tucker and I watched for 1/2 hour as the pump sucked out the water from the manhole. When the level of the water reached the top of the motor, the outboard fan that had been slowly rotating all of the sudden kicked into high gear and we could see that the pump had been running at full speed all along.
This fascinated me. I figured the water must have been pure enough not to be too conductive (pure water is a natural insulator…. oddly enough). We could easily see this pump through 15 feet of water, so it must have been pretty clean. That was the only time I have ever seen an open motor happily running submersed in water… It is not something you see every day….. for instance…. It is not every day that you see a janitor with a Psychology major acting like an electrician sitting beside a manhole staring down into the darkness in a power plant either. But there you are…
Switching in the Power Plant Substation Switchyard
Originally posted on February 9, 2013:
The phone rang Saturday morning on March 17, 1984. Since we didn’t have caller ID at that time, I had to pick up the phone to tell who was on the other end. It was my foreman Charles Foster. He said he needed to go out to the plant to do some switching in the substation and he needed someone to help him. I had been an electrician for all of 5 months and this was the first time I had been involved with switching in the substation.
When I arrived at the plant 30 minutes later, the operators in the control room were busy putting Unit 1 online. Charles Foster had brought along his son Tim Foster. Tim was about 10 years old at the time. The operators didn’t have any certified switchmen available, and so the Shift Supervisor, Jim Padgett gave the go ahead for me to go with Charles and act as the “secondary” switchman. That is, I was the one that read and re-read the instructions while Charles would actually crank the switches.
Here is a picture of a typical substation you might run across:
I found this picture on the Department of Labor website. The Main substation at the power plant was much bigger than this one. Half of the substation was the 189,000 volt substation the other half was the 345,000 volt substation. For the particular switching that we were doing that day, we were in the 189 KV end of the substation. This is where Unit 1 fed power to the world.
This was my first experience doing something in the substation other than sub inspections and Transfer Trip and Carrier tests. I was a little surprised when Charles closed one of the air break switches and there was a loud crackling sound as an arc of electricity jumped from one switch to the next. Charles told me that was nothing. Just wait until I close the main switch from the transformer on Unit 2 in the 345 KV sub up the hill.
He was right. Later when I first opened that switch, it drew an arc about 3 feet long before it broke the circuit with a loud pop. You could hear the echo of the booming arc as the sound bounced off the nearby hills…..um…. if there had been hills… It was pretty flat…. being Oklahoma and all. I suppose it was bouncing off of the Power Plant and maybe some trees off in the distance. Well. Anyway. It did echo for a while.
After my first experience in the substation, I decided that substations were one of the neatest places to be. I later became certified as a switchman (multiple times, as you had to renew your certification every 2 or 3 years). Eventually becoming a Switchman trainer. Later when I was with my girlfriend, and even after she became my wife, and we would drive by a substation, I had to be careful not to run off the road since I was usually straining my neck to get a closer look at the substation.
This would result in Kelly become agitated (jokingly of course) that I was paying more attention to the substations than her. To this day, when we pass a substation, my wife Kelly will still let out a “hmmph” when I exaggeratedly ogle a passing substation. I mean…. Can you blame me?
Well. Throughout the years, Substation switching became more an more safe. When I first began switching, we would just wear High Voltage rubber gloves and maybe a face shield. Later we had to wear an Arc Flash Protective suit just in case something blew up:
One time one of the switches broke and exploded in the 345 KV substation and we found a large piece of insulator 200 yards away. This suit wasn’t going to protect you from that. It was only going to keep you from being burned if there was a flash explosion.
In the early 1990’s there was what was known as the “EMF Scare”. That was the belief that the high voltage electric lines caused Leukemia. It was true that children in cities that lived near high voltage electric lines had a higher risk of having Leukemia than the general population. It also happened that these High Voltage lines ran right down major roadways, so that these same children were breathing a lot more exhaust from the cars and trucks on the road than your average person also.
Anyway. When we worked in the substation we all knew that we were being bathed in electricity. If I took my volt meter and dropped one end to the ground and held the other end up by my head, it would peg my meter out at 1000 volts. One day in the evening when it was time to go home, Scott Hubbard and I were delayed because a fuse block had burned up in a breaker panel in the 345 KV substation.
It was drizzling at the time, so you could hear the electricity about 30 feet above our heads crackling and popping. Scott and I were standing behind the pickup truck looking for spare parts in my tool bucket and I had poured out some nuts, bolts and screws onto the bed of the truck. As we were sifting through them looking for the parts we needed, both of us were thinking that I must have had some metal shavings mixed in with the nuts and bolts. When we would move them around we kept feeling like we were being stabbed by metal shavings….. It turned out that it was just sparks jumping from the truck to our fingers.
10 years after my first encounter in a substation, while I was on the Confined Space Rescue team, we had to be out at the plant at night because some people were working in the condenser and the Confined Space Rescue team had to be on site. So, while we were there, we were doing things like cleaning up shop and stuff. Ray Eberle was working with me, and he asked me if I had ever heard about holding up a fluorescent light in a substation and having it glow.
I told him that I had, and it does glow. We went to the electric shop where I retrieved a couple of new 4 foot fluorescent lamps and we headed to the 345 KV substation around midnight.
When we arrived, we climbed out of the truck, and I demonstrated how just by holding the fluorescent tube upright, it would light up:
Ray was fascinated by this, and was noticing how the tube would light up from the point where you were holding the tube on up. As he was experimenting with this new found knowledge, there was an odd popping sound that would occur about every 5 seconds. I was standing there watching Ray in the dark. Ray finally asked me…. “Where is that popping sound coming from?” I pointed down to his shoes and said. “There are sparking jumping from you shoe down to the ground.”
Looking down at his shoe in the dark, Ray could see about an inch long spark jumping from his shoe down into the large gravel we were standing on. He was startled by this and decided that he had enough scientific lessons for one night. So, we climbed back in the truck and headed back to the plant.
Anyway. During the time that we were having this EMF scare (EMF by the way stands for Electromotive Force), there had been some movie or a 60 Minutes episode on TV about it and it was causing a stir. So, people from Corporate Headquarters were going around trying to educate us about it. One way they did this was to show us how low the levels of EMFs were in the plant.
Well. You can’t convince an electrician that we aren’t constantly being bathed in electricity when we are out in the substation, because we all knew better. This guy came around with a special EMF gun just to show us how the plant was safe… We had a meeting where the engineers agreed that we hardly had any EMFs in the plant. The highest EMFs were found in a drill that mounted horizontally using an electromagnet.
When I heard this, I became skeptical of these findings. And the horizontal drill made me even more suspicious. Not that I minded the EMFs. I found them rather refreshing. They seemed to line up all my thought bubbles in my brain so that I could think better. Kind of like “magnet therapy”.
Then a couple of weeks later my suspicions were verified. Doug Link came down to the electric shop with a guy from Oklahoma City that was going to go with me out to the Substation to measure the EMF levels. — OK. I thought…. Let’s see what happens now… Because I already knew the EMF levels in the Substation just my licking my finger and sticking it in the air…
The guy from Corporate Headquarters took out a roller with a handle much like you would have to measure long distances. Only this had a couple of probes sticking out from either side horizontally. — Now…. Horizontally is the key, and that’s why when they said the Horizontal drill had the most EMFs in the plant, I became suspicious in the first place.
You see…. EMFs have direction. The two probes on the instrument that the man was wheeling around the substation were parallel with the high voltage lines. Therefore, you wouldn’t measure EMFs between the two probes. If the probes had been turned vertically (up and down), I am sure that the voltage (and the EMFs) would have blown the circuitry in the instrument. I say that because the guy that was wheeling this thing around the substation was being very careful not to tilt it one way or the other.
My suspicions were further confirmed when we were in the relay house looking at the results from when he circled the large transformer between the 189 and the 345 subs, and there was a large spike in EMFs at one spot. When we went to look at that spot, it was at the point where the high voltage bus turned down to go into the transformer…. Just like the Horizontal drill…. The direction was across the probes. You see…. EMFs are perpendicular to the flow of electricity. Or straight down from an overhead line. I mean… duh. You had to hold the fluorescent light upright to make it glow….
Well. I thought…. What do I do? Here is a guy trying to pull the wool over our eyes to make us believe that there aren’t any EMFs out there. I felt insulted. On the other hand, I didn’t care about the EMFs. I liked the EMFs. So, after looking at Doug Link straight in the eyes with an astonished look of disbelief that this guy thought we were so gullible to believe this magic act, I decided to let it go. Let him think he relieved our worry that didn’t exist in the first place. Why ruin his day. He had to drive 70 miles back to Corporate Headquarters. Why should he go all that way back thinking that he failed in his mission? So, all I could do was smile.
Anyway. Tim Foster, the 10 year old boy that was with his father, Charles Foster the first time I went to the substation to go switching, later grew up and became an electrician himself. Not only did he become an electrician, but he became an electrician in the same electric shop where his father had worked for 30 years. He works there to this day, and I’m sure that Tim now has an occasion to go switching in the same substation where I first met him. Bathing in the same EMFs. Feeling the same thrill when you open a 345 KV air switch with a loud Pop!
Replies from Previous Post
I do think substations look cool 🙂
Holy Cow! I am learning a lot about Power Plant Stations. This was very good!😊👍
I guess there has been some progress. We have 500KV lines bringing power into northern Virginia from West Virginia. People complain they are eyesores. Of course, if we we had enough sense to generate the power locally, we would not need 500KV lines 200 miles long.
The shoe sparks seem like the most wondrous part of all this. A fluorescent tube lighting up is kind of the expected effect; shoes, that’s different.
Yeah. The shoe sparks surprised me just as much as it did Ray. I’m just glad that he didn’t go up in flames. I knew it was just a static charge, but a charred Ray would have ruined the entire evening.
Yow! And I thought getting a 400-volt shock (DC, fortunately) when I was a teenager was frightening!
St Anthony of Padua never fails us if we believe in him, he has never let me down 🙂 Enjoyed your post