Friday, October 1, 2010

What to do with these old wires?

Questioner: Dave
Category: Electrical Wiring in the Home
Private: No

Subject: Wire dia vs gauge
Question: I've got a heavy gauge wire with no marking running to an old barn. There is a 30 amp breaker on it. I'd like to measure the bare wire dia so I know what gauge to see if I can increase the 30 amp breaker.
Also is there a way to do a multiple (two) switch circuit on 220V like you would use at the top and bottom of a stair arrangement.

Answer: Hi Dave,

It sounds like you are treading on dangerous territory. I'm sure that the things you are thinking can be done but it is also where dangerous mistakes are made and I would advise against it. The problem is that you may measure everything correctly but the person after you may not understand the genius that you were and mess up the entire system. I think this is best looked by a pro on site. I don't want anyone to get hurt.


Bill Lutz
Generation 3 Electric, Inc.
http://generation3electric.com
http://www.philadelphia-electricians-how-to.com/

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