The Electrical Contractor Network

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

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Correct rotation, wrong sequence
by Potseal
Today at 03:14 PM
Industrail Control Panel bonding per 409.108
by sparkyinak
Yesterday at 06:29 PM
Calling all Non-US members!! (Non-US only)
by aussie240
12/07/16 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 12
HotLine1 10
Potseal 9
sparkyinak 8
Texas_Ranger 7
Who's Online
1 registered (cableguy619), 212 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#153775 - 11/25/03 06:33 AM backfed 3-way
derater Offline
Member

Registered: 03/30/02
Posts: 182
Did the service,etc. for a modular;there is a 3-wire that comes up from switch below to attic and I think it gets wired through the
attic light(s)and then to 2nd 3-way;how to do this?

Top
Building Codes & Related References
#153776 - 11/25/03 02:45 PM Re: backfed 3-way
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
derater, where is the feed?

Top
#153777 - 11/25/03 04:41 PM Re: backfed 3-way
derater Offline
Member

Registered: 03/30/02
Posts: 182
Sparky; if it's like the one in the base.,it's fed at 3-way w/ power tied to black of 3-wire and whites nutted;existing light on "common" of 3-way;white of three wire painted red(to denote power coming back?)I need to complete attic cicuit w/ another in attic.Has existing light at bottom of stairs.Hope that explains it.

Top
#153778 - 11/26/03 03:35 PM Re: backfed 3-way
crash Offline
Member

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
If the white wire on a three-wire cable is painted red then it is probably a traveller. The three-wire cable would contain one hot condutor (black) and two travellers (red) and no neutrals. You would not be able to feed a second light off this cable. How many cables and how many wires are in each cable at the existing light and switch?

Top



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