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grendon 05-09-2008 09:50 AM

neutral live
 
hi got a problem , got home yesterday and found nothing working in tv room ,lights and sockets, found that the neutral side live(white) when tested , but when every thing disconnected not live , live ok (black), traced it back to feed in point of room, changed plug socket no different , also did not trip breaker ,really at a loss at what do next, apart from pulling wires from walls , any ideas please

Silk 05-09-2008 10:03 AM

I hate to jump on the "loose neutral bandwagon" but here goes. You are measuring line voltage on your neutral when "things are connected because the circuit is continuous to that point. When your "stuff" is disconnected you don't read 120 on your neutral because the circuit is open between the hot and neutral, in other words it's not continuous through your lights or whatever. If your neutral is "open" or not connected back to the panel, the circuit cannot be completed and you are reading line voltage on the neutral.

Check the neutral connections in panel for that circuit or neutral connections in first box/rec. that doesn't work.

BigJimmy 05-09-2008 10:05 AM

Quote:

Originally Posted by grendon (Post 122022)
hi got a problem , got home yesterday and found nothing working in tv room ,lights and sockets, found that the neutral side live(white) when tested , but when every thing disconnected not live , live ok (black), traced it back to feed in point of room, changed plug socket no different , also did not trip breaker ,really at a loss at what do next, apart from pulling wires from walls , any ideas please

The neutral path back to the panel has been broken. Assuming you still have appliances, lights or some loads on the circuit that are switched on (not working mind you, just connected and switched on), you are reading the hot through the load. Breaking the neutral on a live circuit would not trip the breaker (it could possibly with arc fault depending on how the disconnection was made).

Jimmy

grendon 05-12-2008 11:07 AM

thanks guys, found the problem loose 1/2 turn on the neutral connection on the first feed box in, which wasn't in in the tv room but one single box in the dining room, really didnt think of the feed in box being there , ah well sorted now, thanks again for the advice


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