switch has pigtail to silver wire?

Reply

  #1  
Old 10-06-14, 11:28 AM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,342
switch has pigtail to silver wire?

I replaced a one way switch recently. The junction box has pigtails to some smaller silver wire, which is connected to the switch. 2 black wires, the neutral is just connected to another neutral in the junction box but doesn;t connect to the switch.
Is this ok? I read somewhere you shouldn't mix aluminium with copper?
 
Sponsored Links
  #2  
Old 10-06-14, 11:37 AM
Member
Join Date: Mar 2010
Location: USA
Posts: 3,097
Not all silver wire is aluminum. It could be tin covered copper which needs no special treatment.

If you can do so easily, file or scrape the extreme end of the wire. See if copper color shows through.

If it is aluminum, the connectors need to be a special kind for use with aluminum. Usually the kit comes with a tube of jelly to cover the exposed wire with.

The aluminum connectors will work with copper to copper joints although this is expensive overkill.
 
  #3  
Old 10-06-14, 11:37 AM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,051
If the wires are aluminum you should not use wire nuts.Polaris or AlumiConn connectors are best.
 
  #4  
Old 10-06-14, 12:26 PM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,342
I noticed a lot of thermostats and baseboard heaters come with this same silver wire so it must be modern and up to code?
 
  #5  
Old 10-06-14, 02:22 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,051
That would be tinned copper. Look at a cross section.
 
  #6  
Old 10-06-14, 06:18 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 46,166
Baseboard heaters have never used aluminum wiring.
 
  #7  
Old 10-06-14, 07:25 PM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: USA
Posts: 9,385
For your house to have tinned copper wiring the house would have to be at least 50 to 60 years old with original wiring.
 
  #8  
Old 10-07-14, 07:10 AM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,342
The are the silver with small wires/filaments...easy to wrap around a stiff copper wire.
 
  #9  
Old 10-07-14, 07:44 AM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: USA
Posts: 9,385
The are the silver with small wires/filaments...easy to wrap around a stiff copper wire.
If those wires are on thermostats and baseboard heaters, they are tinned copper and not aluminum. Did you read Ray's post?

ray2047

That would be tinned copper. Look at a cross section.
The only real silver wire I have seen/used was silver clad copper with white teflon insulation, but you won't see it anywhere around a house.
 
Reply

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


Thread Tools
Search this Thread
Display Modes