AskCodeMan

by **Marc M** on Sat Mar 12, 2011 11:35 pm

Jerry, do you know about the time when the SEP was first required to be double grounded?
Thanks

by **Jerry Peck - Codeman** on Sun Mar 13, 2011 10:26 am

Hi Marc,

I suspect that by "SEP" you mean "service equipment panel", i.e., the service equipment, but I am not sure what you mean by being "double grounded".

by **Marc M** on Mon Mar 14, 2011 12:41 am

Hey Jerry, Yes the service panel. What I was wondering was, when was it required to have two sources of ground I.E., uffer,ground rod, water supply etc...? Around what year was this necessary?
Thanks

by **Jerry Peck - Codeman** on Mon Mar 14, 2011 7:59 pm

Hi Marc,

That question is a lot more complex than you probably could imagine ... and the answer is ever more complicated ... so I will reduce the answer down to the basics as follows:
- 1975 - The NEC stressed using the underground water pipe if available, and gave some options when/if/but/etc about the underground water pipe.
- 1978 - The NEC basically stated that any electrode which was available was to be used.

Hopefully that information helps.

by **Marc M** on Mon Mar 14, 2011 11:42 pm

I appreciate this. Thank you

AskCodeMan

Double Ground

Double Ground

Re: Double Ground

Re: Double Ground

Re: Double Ground

Re: Double Ground

Who is online

Building Code and Building Construction - Questions and Answers Or when you want to know how construction is supposed to be done.
\|
	AskCodeMan.com
\|