The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Forum Software Upgrade coming soon...
by lesk
01/16/17 06:43 PM
Faricating Guards out if Lexan?
by frank
01/16/17 04:33 PM
Would ELV branch circuits be a good idea?
by LongRunner
01/16/17 07:42 AM
100% breakers?
by Texas_Ranger
01/16/17 06:13 AM
Dangerous DIY Advice
by Potseal
01/12/17 09:52 AM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
HotLine1 15
gfretwell 11
ghost307 10
sparkyinak 9
frank 9
Who's Online
2 registered (lesk, LongRunner), 268 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#59637 - 12/11/05 07:32 AM Flickering lights....
Attic Rat Offline
Member

Registered: 12/14/03
Posts: 530
Loc: Bergen Co.,N.J. USA
... Hi gang,..
Got a call this week to troubleshoot a house where the old lady says the lights flicker,..but only in one area of the house, and one of the lights she said went "super-nova" for a few seconds. I was thinking, bad neutral connection on an Edison/multi-wire circuit..I went into the CB panel, and found a neutral wire loose at the neutral bar, tightened it, and searched for others..Found nothing else obvious...

The lady called yesterday, and said the flickering continues,..but to a lesser extent...also she has one receptacle that has blown out (3) telephone power supplies (you know,the plug in xfrmer,..we also call a "wall-wart")in succession...I checked voltage and it's fine,..and when I go there, there's NO flickering... coincidence or ghosts?? HELP!!!
Russ
_________________________
.."if it ain't fixed,don't break it...call a Licensed Electrician"

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#59638 - 12/11/05 07:50 AM Re: Flickering lights....
hbiss Offline
Member

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
You are on the right track. If it looks like the problem is confined to two circuits see if they are on the same multiwire branch circuit then take everything apart and check the neutral connections.

Also don't discount a neutral problem with the service.

-Hal
_________________________
www.myphonetechs.com

Top
#59639 - 12/11/05 08:29 AM Re: Flickering lights....
BigB Offline
Member

Registered: 03/31/04
Posts: 727
Loc: Tucson, AZ USA
Russ,
Instead of tightening the loose neutral you might want to remove it, cut a fresh end and re land it in an unused hole. If it had been arcing the connection could be compromised. Of course you know enough to shut down the edison ckt first.

Top
#59640 - 12/11/05 08:45 AM Re: Flickering lights....
Attic Rat Offline
Member

Registered: 12/14/03
Posts: 530
Loc: Bergen Co.,N.J. USA
... Thanx, guys...
Yeah, Hal, I'm gonna go back there on Monday, and sort it out once and for all...

BigB,.. I hear ya,..the problem is that some hack stuffed 2 neutrals under one terminal,I'm gonna have to make some room by doubling up on the bare ground wires..and freeing up a space..

This place is the pits..electrically.. They have some outdated, obsolete relay switching system installed (all home made by the previous sparky)and she wants it all ripped out and run to normal switches..ALL TO BE DONE BEFORE THE HOLIDAYS!! Bah Humbug!!
Russ
_________________________
.."if it ain't fixed,don't break it...call a Licensed Electrician"

Top
#59641 - 12/11/05 11:54 AM Re: Flickering lights....
Lostazhell Offline
Member

Registered: 02/21/04
Posts: 1248
Loc: Bakersfield, CA (Originally Or...
"Outdated, obsolete relay switching system....."

This smells familiar.. check your neutral connections in the relay cabinets. I've seen before where someone's stuffed all the neutrals in a splitbolt going off to all the different lights.. Most of the time I come across "Touchplate" it's someone wanting to get rid of it..

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals