There was a time, a good Electrician could use his figures on live three phase. One could tell the difference between 120, 240 or 480. You didn't stay in the field very long.
My Bell taught their ser... View MoreThere was a time, a good Electrician could use his figures on live three phase. One could tell the difference between 120, 240 or 480. You didn't stay in the field very long.
My Bell taught their service people to touch leads to their tongue to make sure circuit was on. If someone called just at that time, we'll, burnt taste buds.....