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

ECN Shout Chat
Top Posters(30 Days)
Admin 16
Recent Posts
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
fuse rejectors
by HotLine1. 03/24/17 07:53 AM
Another Forum Update
by Admin. 03/22/17 03:04 PM
Dining room plugs
by watersparkfalls. 03/21/17 10:31 PM
TRUE POWER
by jraef. 03/21/17 09:13 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,369 Are you busy
166,092 Re: Forum
160,560 Need opinion
Who's Online Now
0 registered members (), 59 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#18056 - 12/05/02 06:12 PM wiring panel surge devices  
donles  Offline
Member
Joined: Apr 2001
Posts: 83
Pennsylvania
When you wire a panel surge device, do you connect to the terminals of an existing two-pole breaker? Does the Code address this?
I got a call to check-out some electrical issues brought up by a home inspector. One issue was two wires to a breaker's terminals and I found the additional wires to be the two "hot" wires from the supressor. There is not room in the panel for a two-pole breaker dedicated to the supressor. Since the supressor is not a "load", I wouldn't think that it would matter if it's terminated on a breaker's load terminals along with the actual load, as long as it's a 15 amp breaker because the supressors wires look to be 14 AWG. . Hopefully, someone will say if it's a code issue.
A separate matter is that the breaker the supressor is connected to is the main breaker in a GE split bus-panel, so it's really the unprotected line terminals on the breaker. If someone chimes in and says it's OK to connect to a branch circuit breaker, I will move the wires to 2 15 amp breakers. If not, I will remove the supressor. In any event it's coming off of the main.
Don


Work Gear for Electricians and the Trades

#18057 - 12/05/02 06:30 PM Re: wiring panel surge devices  
Electric Eagle  Offline
Member
Joined: Apr 2002
Posts: 914
Alpharetta, GA
Some breakers, such as Square D QO, are designed to accept 2 conductors of equal size. Most are not. I always give the TVSS its own breaker, most say to use a breaker 30 amp or less. Device wiring is allowed to be smaller than branch circuit wiring due to the short length. One option is to pigtail the TVSS with a 15,20,or 30 Double Pole, but make sure the device is rated for that breaker.



Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.008s Queries: 14 (0.002s) Memory: 0.7417 MB (Peak: 0.8574 MB) Zlib enabled. Server Time: 2017-03-25 01:58:43 UTC