notoriousdln
Member
- Location
- Myrtle Beach, SC
Recentley I wired a little office buildout and had no power going into the offices, yet was getting a 29 volt backfeed on the neutral of the lighting circuit. I realized this because I was wiring a lay in fixture and got zapped from the neutral to the grid. The offices were wired with 8 single phase circuits sharing 3 neutrals. EX: A-B-C with a shared neutral; A-B-C with a shared neutral; B-C with a shared neutral. The sets of 3 circuits were on 3 pole breakers and the other 2 circuits were on a 2 pole breaker per the 2008 NEC. All circuits were pulled in a 1" EMT to a Main J-Box. Let me remind you I had NO POWER onto ANY of the circuits. I have verified as well that all neutrals were made up to corresponding circuit neutrals. Could one the the Neutrals really picked up 29 volts just in the panel somewhere? I am puzzled as to why I got shocked!!. And just so ya'll know, when I did turn power on to all circuits, everything works as it should. Any Ideas??