Neutral Bus Corrosion - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 06-06-2012, 09:45 PM   #1
Newbie
 
Join Date: May 2012
Posts: 8
Rewards Points: 10
Default

Neutral bus corrosion


I have a 30 year old 100 amp Murray service panel. The screws in the neutral bus bar (aluminum) are corroded, not horribly, but obviously. What should I do at this point?

TIA

Advertisement

JeffT is offline   Reply With Quote
Old 06-06-2012, 09:47 PM   #2
Newbie
 
Join Date: Jun 2012
Location: Canada
Posts: 15
Rewards Points: 10
Default

Neutral bus corrosion


What is the location of the panel?

Advertisement

IntexInspector is offline   Reply With Quote
Old 06-06-2012, 09:48 PM   #3
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,900
Rewards Points: 2,154
Default

Neutral bus corrosion


Quote:
Originally Posted by JeffT View Post
I have a 30 year old 100 amp Murray service panel. The screws in the neutral bus bar (aluminum) are corroded, not horribly, but obviously. What should I do at this point?
Nothing until it fails.

If there is obvious water infiltration then you should find the source and fix it.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is online now   Reply With Quote
The Following User Says Thank You to Speedy Petey For This Useful Post:
electures (06-06-2012)
Old 06-06-2012, 10:38 PM   #4
Electrical Contractor
 
rrolleston's Avatar
 
Join Date: Oct 2011
Location: Granville, NY
Posts: 1,941
Rewards Points: 1,000
Send a message via AIM to rrolleston Send a message via Yahoo to rrolleston
Default

Neutral bus corrosion


I would turn the main breaker off clean up the connections and add some ox guard to the connections. Bad neutrals can cause all sorts of undesireable effects.
__________________
With Electricity there is the right way to do it and the dead way. Just because it works does not make it safe.
rrolleston is offline   Reply With Quote
Old 06-07-2012, 01:28 PM   #5
Newbie
 
Join Date: May 2012
Posts: 8
Rewards Points: 10
Default

Neutral bus corrosion


Quote:
Originally Posted by IntexInspector View Post
What is the location of the panel?
It's in a very dry basement. Really, there are such things in New England. They're just RARE . . .

Last edited by JeffT; 06-07-2012 at 04:25 PM.
JeffT is offline   Reply With Quote
Old 06-07-2012, 02:51 PM   #6
Newbie
 
Join Date: Jun 2012
Location: Canada
Posts: 15
Rewards Points: 10
Default

Neutral bus corrosion


What type of basement,concrete block,poured concrete,stone? Is there laundry in the basement?
IntexInspector is offline   Reply With Quote
Old 06-07-2012, 04:26 PM   #7
Newbie
 
Join Date: May 2012
Posts: 8
Rewards Points: 10
Default

Neutral bus corrosion


Quote:
Originally Posted by IntexInspector View Post
What type of basement,concrete block,poured concrete,stone? Is there laundry in the basement?
Fieldstone. 100 years old. I just added laundry, vented to the outside . . .
JeffT is offline   Reply With Quote
Old 06-07-2012, 05:45 PM   #8
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,163
Rewards Points: 2,118
Default

Neutral bus corrosion


Quote:
Originally Posted by JeffT View Post
Fieldstone. 100 years old. I just added laundry, vented to the outside . . .
Im sure the humidity is a lot higher than you think, run a dehumidifier... most stone foundations i've worked in all have panel issues with corrosion...
stickboy1375 is online now   Reply With Quote
Old 06-07-2012, 08:01 PM   #9
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,976
Rewards Points: 2,048
Default

Neutral bus corrosion


Loosen and then retighten each screw and set screw that holds wires in place in the panel. This cleans and therefore improves the connection.

Do not use tremendous force.

Should something break in the process then it was too far gone, corrosion wise.

Each neutral (white) wire must have its own hole and screw in the neutral bus bar. Two ground wires (green or bare) of the same size can share a hole.
__________________
Forget super sized fries. The Washington Redskins could promote healthy eating with First Lady Obama by choosing a (red skinned) turnip for a mascot.
AllanJ is offline   Reply With Quote
Old 06-07-2012, 08:19 PM   #10
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,163
Rewards Points: 2,118
Default

Neutral bus corrosion


Quote:
Originally Posted by AllanJ View Post
Loosen and then retighten each screw and set screw that holds wires in place in the panel. This cleans and therefore improves the connection.

Do not use tremendous force.

Should something break in the process then it was too far gone, corrosion wise.

Each neutral (white) wire must have its own hole and screw in the neutral bus bar. Two ground wires (green or bare) of the same size can share a hole.
You might want to suggest they turn off the breakers before loosening any neutral connections...

Advertisement

stickboy1375 is online now   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Induction Cooktop, no neutral (?!) andersol Electrical 7 09-28-2010 04:47 PM
Sharing Neutrals on the same phase electro Electrical 30 08-12-2010 03:10 PM
question on the "stubbie" bonding links n175h Electrical 12 10-13-2009 05:09 PM
Main disconnect neutral wiring Daniel Holzman Electrical 5 10-04-2009 02:36 PM
Ground rod or not? brotherman Electrical 30 07-15-2008 05:58 PM




Top of Page | View New Posts