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Electrical Inspections Contains discussions about electrical systems. This includes receptacles, panels, wiring, etc.

 
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  #1  
Old 1/17/12, 7:11 AM
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Jim Horton Jim Horton is offline
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Default Is this cloth aluminum wire? Safe?
Is this a cloth aluminum wire? It goes to a 50 amp breaker marked "range". Safe?

cloth-aluminum-wire-safe-100_5100.jpgcloth-aluminum-wire-safe-100_5101.jpg


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  #2  
Old 1/17/12, 7:27 AM
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Jeffrey R. Jonas Jeffrey R. Jonas is offline
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Default Re: Is this cloth aluminum wire? Safe?
Multi-strand AL has no issues or concerns if installed properly.

Note; What is shown as being cloth covered (impregnated cloth) it is most likely Tinned Copper. Again no issue.
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  #3  
Old 1/17/12, 7:49 AM
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Default Re: Is this cloth aluminum wire? Safe?
There is a bigger issue then Tinned Copper in this picture!


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Old 1/17/12, 8:01 AM
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Default Re: Is this cloth aluminum wire? Safe?
Kevin, would you like to share what you see?
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  #5  
Old 1/17/12, 8:24 AM
Joseph M. Whitt Joseph M. Whitt is offline
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by Jim Port View Post
Kevin, would you like to share what you see?
an uninsulated neutral to the range


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Old 1/17/12, 8:46 AM
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Default Re: Is this cloth aluminum wire? Safe?
Correct


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Old 1/17/12, 8:50 AM
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Default Re: Is this cloth aluminum wire? Safe?
Also the black neutral goes across the bus bar between breaker and the sheathing is cut back too far.


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Last edited by kwood; 1/17/12 at 9:02 AM..
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  #8  
Old 1/17/12, 8:58 AM
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Default Re: Is this cloth aluminum wire? Safe?
I would agree that it's tinned copper. It's likely that a 3-wire feeder was permitted to a range when this was originally installed. What size are the conductors?
The copper conductor in photo #1 looks like a factory jumper connecting the two bus bars together.

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Old 1/17/12, 9:09 AM
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Default Re: Is this cloth aluminum wire? Safe?
Robert this is not a general practice in Ontario. Can you explain this info.
I am not an Electrician so I need to see the allowance for this.


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Old 1/17/12, 9:35 AM
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by kwood View Post
Also the black neutral goes across the bus bar between breaker and the sheathing is cut back too far.
That is a factory installed jumper. It would also not be a black neutral.
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  #11  
Old 1/17/12, 9:36 AM
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by kwood View Post
Robert this is not a general practice in Ontario. Can you explain this info.
I am not an Electrician so I need to see the allowance for this.
Are you referring to the copper jumper? Different manufactures use different techniques to connect the neutral bus on the left side of the panel to the neutral bus on the right. This manufacturer choose an insulated solid copper jumper. Others such as GE use a bare metal bar. You can see the GE one in this photo at the bottom of the panel.

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Old 1/17/12, 9:36 AM
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by jwhitt View Post
an uninsulated neutral to the range
SE cable was allowed to supply ranges.
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  #13  
Old 1/17/12, 9:54 AM
Joseph M. Whitt Joseph M. Whitt is offline
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by Jim Port View Post
SE cable was allowed to supply ranges.

Is that SE cable?


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  #14  
Old 1/17/12, 9:58 AM
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Default Re: Is this cloth aluminum wire? Safe?
Thanks Robert!
Which panel has the copper jumper?


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  #15  
Old 1/17/12, 10:10 AM
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Default Re: Is this cloth aluminum wire? Safe?
Quote:
Originally Posted by jwhitt View Post
Is that SE cable?
That was probably installed before I was born but it looks like it to me. If it's not copper SE then what is it?
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