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Swansea, IL
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[#1] Posted: Apr 04 2006 - 08:14:24 AM |  |  |
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A few questions for the more experienced electrician/inspector. Basically I just want to know whatever I can about this wire, its sheathing, rating, etc. In the attached photo, the 3rd and 4th wires down appeared to be aluminum. However the 4th one (with red covering) has a few nicks on it that are copper in color. Why are the nicks that color? It makes me think it is copper on the inside…? The house was built around 1930, the panel was rated at 100AMP, and the main breaker was 70 amps. Thanks for the help.
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Mark A. Perry
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Midlothian, VA
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What type of wire is this?
[#2] Posted: Apr 04 2006 - 08:21:18 AM | | |
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I believe that is nickel coated copper which is pretty prevalent here in older Richmond, VA homes.
It's difficult to tell from a photo, but that appears to be somewhere between 60 - 100 amps.
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What type of wire is this?
[#4] Posted: Apr 04 2006 - 08:58:04 AM | | |
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Yeah,
I call it tin-coated copper wiring. Real common here on houses up to the 60's. I suppose it might be nickel but I think the term tin-coated comes from the fact that one is coating or 'tinning' the wires with an exterior coating. I've never seen a corrosion problem with it.
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What type of wire is this?
[#5] Posted: Apr 04 2006 - 12:24:19 PM | | |
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Is it cloth wrapped rubber insulation?
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Terry
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Swansea, IL
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What type of wire is this?
[#6] Posted: Apr 04 2006 - 12:40:23 PM | | |
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Thanks guys, TIJ is great! I guess there is no reason for concern.
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Mark A. Perry
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What type of wire is this?
[#7] Posted: Apr 04 2006 - 2:11:52 PM | | |
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As best I can recall visually it is as Jim says. There is the outer cover that is almost like a light guage canvas over a rubber wrap.
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What type of wire is this?
[#8] Posted: Apr 04 2006 - 2:28:36 PM | | |
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That leads to the question why the canvas cover? Why not just the rubber?
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Mark A. Perry
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What type of wire is this?
[#10] Posted: Apr 04 2006 - 8:21:18 PM | | |
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Does the "canvas" cover the entire wire, or is it just at the ends for color coding? Sort of like friction tape?
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What type of wire is this?
[#11] Posted: Apr 04 2006 - 9:14:40 PM | | |
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Again, if memory serves, I believe the wires you see in the picture would end up in a sheathing that looks somewhat like the material that was used for the webbing in back yard or beach folding chairs, but it probably isn't nylon. Typically earth tone gold and red. This would most likely be the wiring to an old oven, cook top, dryer, etc.
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What type of wire is this?
[#13] Posted: Apr 05 2006 - 04:07:00 AM | | |
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It is cloth covered for abrasion protection. It is cotton, treated to help with the normal deterioration of rubber. Wire was not bonded to rubber sheath, so could expand and contrat with temp and also deteriorate with exposure to light, etc. I don't think it was nickle plate, as it could be and was soldered in some applications. As Mike referred, "tin the wire prior to fastening". Also, remember this was in the days of friction tape, not plastic electrical tape.
As I remember it, there was a time when rubber tape applied to splice then covered with friction tape. Rubber tape would get really soft and messy and the cloth friction tape covered the glob. I can remember an old electrician using plastic tape for the first time and predicting the end of the world.
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What type of wire is this?
[#14] Posted: Apr 11 2006 - 3:59:49 PM | | |
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BTW.. is that a double tap on #5 breaker?
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What type of wire is this?
