International Association of Certified Home Inspectors
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| Electrical Inspections Contains discussions about electrical systems. This includes receptacles, panels, wiring, etc. |
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#1
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I have inspected several homes in the last couple of weeks where the service wire into the main breaker/bus bars does not have the contact compound. Is not having it a defect? I know there are benefits to using it, but if it is not there, how should it be called out, if at all?
Scott |
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#2
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Please Note:
Greg Fretwell is a non-member guest and is in no way affiliated with InterNACHI or its members.
An aluminum wire in an aluminum lug doesn't usually require the anti-oxidant.
The code doesn't specifically require it. It comes down to the manufacturer's instruction. |
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#3
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Please Note:
ddelaney is a non-member guest and is in no way affiliated with InterNACHI or its members.
Scott,
I always let my customers know if No-ox doesn't exist, because it can cause problems later. The function of this product is to prevent oxidation, and minimize the expansion/contraction effects of aluminum wire dielectrically, thus aiding in the prevention of loose lugs and arcing. Just a thought. |
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#4
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Please Note:
phinsperger is a non-member guest and is in no way affiliated with InterNACHI or its members.
Quote:
How exactly does it reduce the expansion/contraction effects? |
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#5
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Please Note:
Greg Fretwell is a non-member guest and is in no way affiliated with InterNACHI or its members.
The real issue is that the compound is only required if the lug manufacturer requires it, most don't. When U/L tests the lugs they don't use the compound according to the road show by the aluminum pimps I saw at IAEI.
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#6
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lol.....Aluminum pimps....lol........
Actually as greg stated the NEC does not specific call for this compound...just states it is ok to USE the compound....again it will defer back to the manufacturer but I do not see many panels that have a Manufacturer calling for Anti-Oxidents........is it a good idea.....I think so...is it a defect...not really..........and most certainly will make the RE have a FIT if it is called out as a major defect...which it is not. I would say 99% of all the electricians I know use Anti-Ox on the aluminum lugs....I know we do..... Paul W. Abernathy,CMI,CPI,CME National Electrical Code Expert Electrical & Fire Protection Systems Code Supervisor- Alexandria,VA Weekly Live Radio Show :http://en.1000mikes.com/show/the_electrical_guru Weekly Chat on Wednesdays -7:30 PM E.S.T * Get my 13 hour commentary audio CD for the book "How to Perform Electrical Inspections" 2007 InterNACHI Member of the Year |
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