ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
High current GFI vs regular GFCI
by gfretwell. 11/16/18 11:12 PM
This anti-theist is priceless!!!
by djk. 11/14/18 07:19 AM
Single phase and what you call it.
by dsk. 11/12/18 11:10 AM
220/230/240V 60Hz Systems
by Albert. 11/07/18 12:48 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 29 guests, and 18 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Service Panel #50
11/01/00 01:09 PM
11/01/00 01:09 PM
D
dashamo  Offline OP
Junior Member
Joined: Nov 2000
Posts: 1
Lincoln Park, Michigan USA
One of the incoming lugs on my service panel has some sort of corrosion on it, similar to battery corrosion but not the same color. What could be causing this? Possibly too much load on that side of the panel?

Any help would be appreciated.

Ron

Work Gear for Electricians and the Trades
Re: Service Panel #51
11/01/00 07:10 PM
11/01/00 07:10 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,903
NY, USA
I've seen it many times. I don't know what causes it though, it looks like something chemical to me. [Linked Image]

Re: Service Panel #52
01/21/02 08:05 PM
01/21/02 08:05 PM
G
gary long  Offline
Member
Joined: Feb 2001
Posts: 32
Greeley,Colorado,USA
It is probably because they did not use any DEOX !

Re: Service Panel #53
01/21/02 08:10 PM
01/21/02 08:10 PM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,371
Gary,
yeah, just a dab will do ya!
most lugs are 60-61 AL, soft al, so it is al oxide..

Re: Service Panel #54
01/21/02 08:26 PM
01/21/02 08:26 PM
F
frodo  Offline
Member
Joined: May 2001
Posts: 129
louisville, ky usa
hi,
if aluminum was used maybe the lugs are not listed for al...then you may be experiencing disimilar metals..or if it is a cheap panel the lugs may be more aluminum than copper, so that if copper was used you still get the same effect.

anyway noalox will prevent that

-regards
frodo

[This message has been edited by frodo (edited 01-21-2002).]

Re: Service Panel #55
01/21/02 11:18 PM
01/21/02 11:18 PM
A
Anonymous
Unregistered

This is just common corrosion. The aluminum corrodes as a result of enviromental conditions and contaminants present during installation. No-Alox used during installation keeps this corrosion to a minimum, but it cannot be completely prevented. Most, if not all, lugs are listed for both AU and CO.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Alan Belson
Alan Belson
Mayenne N. France
Posts: 1,803
Joined: March 2005
Show All Member Profiles 
Top Posters(30 Days)
Admin 7
djk 2
Popular Topics(Views)
251,538 Are you busy
188,706 Re: Forum
178,412 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.023s Queries: 14 (0.005s) Memory: 0.9741 MB (Peak: 1.1199 MB) Zlib enabled. Server Time: 2018-11-17 17:22:31 UTC