Go Back  DoItYourself.com Community Forums > Electrical, AC & DC. Electronic Equipment and Computers > Electrical - AC & DC
Reload this Page >

Add Light fixture on 14/2 to end of 12/2 receptacle circuit?

Add Light fixture on 14/2 to end of 12/2 receptacle circuit?

Reply

  #1  
Old 07-20-19, 09:24 AM
Member
Thread Starter
Join Date: Jul 2019
Posts: 2
Add Light fixture on 14/2 to end of 12/2 receptacle circuit?

I am planning to add an outdoor flood light fixture from a garage receptacle, inspired by this article:
https://www.thisoldhouse.com/how-to/...age-floodlight

In my setup the light fixture would become the end of the circuit, since it will be added off of a GFCI garage receptacle that is currently at the end of what is otherwise a 20 amp receptacle circuit with all 12/2 wire. Also, Iím planning to ďbypassĒ the GFCI function with a pigtail, connecting the light fixture wire to the line (as opposed to connecting to the load terminals of the GFCI) - so that the light doesnít go out if the GFCI trips. Iím also planning to put a switch inline. It will go through EMT conduit in the garage.

QUESTION:
From reading throughout this forum I understand not to run a 14/2 wire at all on a 20-amp circuit... but this article (from a seemingly reputable source) clearly states to use 14/2 from a receptacle with no mention of the circuit breaker amperage. Is it ok to run 14/2 in my setup as described given itís last on the circuit? If I run 12/2 (which is fine), does it matter that the wires inside the fixture are not 12/2?
 
Sponsored Links
  #2  
Old 07-20-19, 09:33 AM
Member
Join Date: Sep 2002
Location: welland ontario
Posts: 6,432
Upvotes Received: 50
14/2 is NOT permitted on a 20 amp circuit. You must use 12/2 for this new light.
 
  #3  
Old 07-20-19, 09:34 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,425
Upvotes Received: 214
Welcome to the forums.

You need to use the size of wire that matches the protection device. In your case you have a #12 receptacle circuit on a 20A breaker. That means you must use #12 wiring. The fixture wiring is UL rated and is intended to be enclosed within the fixture or junction box.

Connecting the light to the line side of the GFI receptacle is ok.
 
  #4  
Old 07-20-19, 09:37 AM
Member
Join Date: Feb 2016
Location: United States, Virginia
Posts: 1,131
Upvotes Received: 19
The fixture wires are okay being smaller than #12.
 
  #5  
Old 07-20-19, 01:50 PM
Member
Thread Starter
Join Date: Jul 2019
Posts: 2
thanks all for quick advice - 12 it is then
 
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