Neal Lewis Posted November 29, 2007 Report Share Posted November 29, 2007 Is the minimum size for the bonding jumper #6 copper for a 100 amp service? The solid aluminum jumper in the photo looks to be about #10. Thanks Image Insert: 175.44 KB Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted November 29, 2007 Report Share Posted November 29, 2007 I think it's a minimum of #8 copper if protected, #6 if not and a minimum of #6 aluminum. Quote Link to comment Share on other sites More sharing options...
Richard Moore Posted November 29, 2007 Report Share Posted November 29, 2007 If I'm reading my "bible" correctly, the size is from table 250.66 and is actually dependant on the size of the largest SEC's, rather than final service size. Assuming you have "normal" SECs for a 100-amp service the bonding conductor should be the minimum size from the table...#8 copper or #6 aluminum. I have a hard time judging size from photos, but that looks a bit bigger than a #10. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.