I was wondering if somewhere we could provide a link to "commonly used abreviations".
That way I could understand what some of the guys here are abreviating, and understand the threads a little better.
Try not to work alone, it is dangerous.
Now having said that, I know it is impossible, but the best advise I can offer, is shut the power off whenever possible. And make sure someone, whether the customer or someone else knows where you are. If something, god forbid, does happen, it won't take a week to find you.