Any cable installed underground can be assumed wet. In conduit or direct buried it's going to be wet sooner or later. If it's not rated for wet locations assume trouble.
If there is not a fire and a power outage your main fire pump is going to start every time the system leaks down a little. Your going to wear out the fire pump system by starting the whole system.
It's not so much the "blast" as the fire. Once the tank is ruptured keep the fire from spreading, control the oil.
Look up Transformer fire walls, Oil containment and control systems and deluge systems. Look at the USACE and BuREC standards.
Water in the interior of a power cable is rare but it happens. Unless the cable is cut and water runs out like it was a garden hose you may never know.
At least two cable manufactures and two utilities have procedures for removing water. They all involve purging the cable with dry air or...
Are there any bulges in the sides or back?
Is the core of the cable filled>
If the door is big enough you don't need much pressure to blow it off. Water in the cable and a high load ( for what ever reason) could generate enough "steam" pressure to push a door off.
It's a plane to hire someone ( usually an individual they already know). it's not uncommon to list specific classes the individual has taken and/or experience on some obscure software.
When online adds weren't so common there were adds in magazines like Engineering News Record ( a civil/...
How long are the HPCI and RCIC turbines in BWRs supposed to run?
what was the test that caused the Cherynobil accident supposed to find out. That was a main generator test on residual heat?[/indent]
Look up MSHA. They cover mines. You not digging a mine but a fire is a fire. I am sure they cover combustible material, lighting, communication and breathing devices.
I have had one case where a 120 volt AC relay worked on 24V DC. That was for a short time. The problem was when power was removed and the relay was supposed to have opened. It didn't, The Iron path had permanently magnetize.
125 and 250 volt DC relays have springs like bear traps and many...
https://www.youtube.com/watch?v=FTzrfOJkKk0
Several Youtube videos of this fire. Black smoke very noticeable where gray skys are common.
BPA seems t have a lot of transformer fires.
I don't remember the details but at the pumping plant was being built each vendor was to supply a pump for testing. The testing facility was in Scotland. The story was that a fraction of a percent in efficiency would be be very expensive over the life of the project.
LAPWD also proposed a...
No one can answer your question without seeing the complete control schematic.
There may be two- The one that's on the drawing(S) and what actually exist. I would suggest verifying the drawings first. Have a verified "As built" drawing.
Verify the working operation of all components. All...
