aluminum wiring...

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  #1  
Old 10-29-05, 07:15 AM
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aluminum wiring...

told by father in law about this site, but he is not good on the computer. Anyway, a lady called him to replace an outlet and says she has aluminum wiring. That you need special outlets, fixtures, switches for this. Does anyone know of this?? Where you could get them??? And why??? Thanks again.
 
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Old 10-29-05, 10:55 AM
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you dont need anything special for aluminum wiring. it is recommended to pigtail the aluminum with copper wire using purple wire nuts and penetrox or noalox.the copper tails then terminate on the device such as a switch or outlet or light fixture
 
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Old 10-29-05, 11:31 AM
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awesome

thanks. I am assuming this is because the different metals corrode when put together?!? Thanks again, and I appreciate it.
 
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Old 10-29-05, 01:21 PM
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If you connect the aluminum wire directly to a device (receptical, switch, etc), you MUST use a device SPECIFICALLY rated to be connected to aluminum wire. The $0.35 box store recepticals are NOT so rated. The device WILL be marked as OK for aluminum...if it does not, copper pigtails should be used.
 
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Old 10-29-05, 02:23 PM
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In fact, you do need something special for aluminum wiring. Special wire nuts, special receptacles, and special switches. All of them cost more than the regular ones, but it's still a lot cheaper than replacing a burned down house.
 
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Old 10-29-05, 04:07 PM
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thanks again...

I was at Home People anyway and stopped by the electrical dept. Talked to the guy, and he showed me what to use and all that. I guess the extra $6 bucks is better than living in a hotel while house is rebuilt. Passed the info on to my in-law. Thanks from both of us.
 
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Old 10-30-05, 04:51 AM
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whats wrong with pigtailing copper with a purple and penetrox.there is no reason to buy devices rated for al.
 
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Old 10-30-05, 05:37 AM
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Danny,
Most people have enough trouble making a connection to the receptacle and fitting all the wire back into the box with the receptacle. The purple wire nuts which already have no-ox in them are also fine to use with a pigtail, but are difficult to get back in the box with the receptacle for most DIYers and even contractors.
 
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Old 10-30-05, 05:55 AM
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thats opinion. personally when the wires are bent right and wire nuts placed correctly a device and conductors will neatly fold into a box. i know purples come with no-ox i add penetrox to the splice. again there is no reason to go for the extra cost of al rated devices when a wire nut a copper tail will do the job easily and safely. if you cant bend a couple of wires in a box take up plumbing.
 
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Old 10-30-05, 09:58 AM
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The CPSC has not been consistent over the years in their advice as to whether the special wire nuts, or the special devices, is the preferred way of mitigating the risks of aluminum. Their current recommendation is that neither of these approaches is acceptable other than for a temporary emergency repair. Instead, they recommend the use of a special COPALUM crimp connector which is both more expensive than the other two options, and also beyond the scope of a DIYer (since DIYers have no access to the required tools and connectors).

Neither the Ideal 65 "Twister" purple wire nut, nor the CO/ALR device is particularly cheap. So if you're not going to follow the CPSC advice and hire a specially-trained electrician to do the crimping, you can compare the costs and efforts of the other two approaches. But remember that independent testing has shown that neither of these approaches is capable of long-term safe performance as part as part of the permanent wiring of existing aluminum wired homes.
 

Last edited by John Nelson; 10-30-05 at 10:18 AM.
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Old 10-30-05, 10:55 AM
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