ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#178562 - 06/04/08 02:07 PM Pig Tailing AL to Copper
dougwells Offline


Member
Registered: 05/03/03
Posts: 1137
Loc: kamloops BC Canada
I get many calls from customers thinking we can just pig tail copper onto aluminum with the proper # 63 marrette. I have always thought it was best to replace the devices with c0/alr devices but i havent seen these in Decora.
Top
Tools for Electricians:
#178564 - 06/04/08 03:51 PM Re: Pig Tailing AL to Copper [Re: dougwells]
Rewired Offline
Member
Registered: 01/01/06
Posts: 558
Loc: Hamilton, Ontario, Canada
I dont think there is such an animal as a CO/ALR rated decora device..
A.D
Top
#178593 - 06/05/08 08:54 PM Re: Pig Tailing AL to Copper [Re: Rewired]
marsbar Offline
Member
Registered: 04/04/06
Posts: 31
Loc: london, ont, canada
Yes I have some on order through Westburn Ruddy, they are purple, chemically treated and allow for different expansion rates or so the sales promo tells me. I thought the was a marrett with a copper tail that was allowed for AL wired homes. I have seen a few homes with AL/CU mixed and was looking for the best way (penetrox and an 833 with a piece of CU takes up space)to help these people out.
Top
#178594 - 06/05/08 08:57 PM Re: Pig Tailing AL to Copper [Re: marsbar]
marsbar Offline
Member
Registered: 04/04/06
Posts: 31
Loc: london, ont, canada
Sorry, I should have read the question better and I have not seen a AL Decora device.
Top
#178618 - 06/06/08 02:31 PM Re: Pig Tailing AL to Copper [Re: dougwells]
u2slow Offline
Member
Registered: 09/18/03
Posts: 200
Loc: Salt Spring, BC, Canada
Has anyone seen a Cu/AL pigtail (well-twisted and w/compound) go bad?

I'm curious because to me it seems like as good - or better - a connection than #12 AL wrapped on the screw terminal. Then you don't need to keep AL-rated devices in the truck.
Top
#178628 - 06/06/08 07:53 PM Re: Pig Tailing AL to Copper [Re: u2slow]
twh Offline
Member
Registered: 03/11/04
Posts: 901
Loc: Regina, Sask.
I haven't seen many cu/al connections, at all. Has anyone seen a cu/al connection last for 10 or 20 years?
Top
#178732 - 06/10/08 09:08 AM Re: Pig Tailing AL to Copper [Re: twh]
marsbar Offline
Member
Registered: 04/04/06
Posts: 31
Loc: london, ont, canada
Please correct me but isn't that the problem: 10-20 years of mixed metals causing corrosion and heat? I understand that Penetrox should be redone every 5 years (but they say the fixture should be replaced every 5 years)
Top
#178736 - 06/10/08 12:55 PM Re: Pig Tailing AL to Copper [Re: twh]
Hendrix Offline
Junior Member
Registered: 01/12/07
Posts: 22
Loc: NH
what about split bolts?
Top
#178738 - 06/10/08 01:31 PM Re: Pig Tailing AL to Copper [Re: Hendrix]
KJay Offline
Member
Registered: 11/27/07
Posts: 763
Loc: MA, USA
I know the OP and most of the other posters in this thread are from the great white north, but wanted to chime in anyway.
Last year I switched to the connectors below after learning some unsavory info about those purple wirenuts.
These are listed for CU and AL wires. The only thing is that you will need to buy and use a torque-limiting screwdriver to install them for UL/CSA listing compliance. They can also fill up a device box quickly if you have several splices to make.
The company sent a free sample connector before I purchased in quantity.

Here is the product link. http://www.alcopstore.com/

Top
#178739 - 06/10/08 02:18 PM Re: Pig Tailing AL to Copper [Re: KJay]
dougwells Offline


Member
Registered: 05/03/03
Posts: 1137
Loc: kamloops BC Canada
Originally Posted By KJay
I know the OP and most of the other posters in this thread are from the great white north, but wanted to chime in anyway.
Last year I switched to the connectors below after learning some unsavory info about those purple wirenuts.
These are listed for CU and AL wires. The only thing is that you will need to buy and use a torque-limiting screwdriver to install them for UL/CSA listing compliance. They can also fill up a device box quickly if you have several splices to make.
The company sent a free sample connector before I purchased in quantity.

Here is the product link. http://www.alcopstore.com/



I got the sample also but i have not found a Canadian supplier for them yet

I have a stock of these i use for now.

http://www.tnb-canada.com/en/catalogues/online/comresconstruction/pdf/c5/09_marrcat_e.pdf
Top
Page 1 of 2 1 2 >

Member Spotlight
Member Since: 02/23/13
Posts: 204
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 93 Guests and 11 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Freecrowder, clee512, Jdscott2005, FAIZAN, Regitest2

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals