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

ECN Shout Chat
Top Posters(30 Days)
Admin 16
Recent Posts
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
WEG CFW-11 Frequency Inverter
by jraef. 03/21/17 08:50 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,315 Are you busy
166,048 Re: Forum
160,525 Need opinion
Who's Online Now
1 registered members (electure), 60 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#91253 - 01/06/05 12:45 PM door bell and garage opener wiring  
Reel-Break  Offline
Member
Joined: Apr 2002
Posts: 178
nc
I sometimes prewire the garage openers with 2 twisted pair of individual wires is that code compliant or should it be in a jacket?

And also I was looking for the area about where the door bell wire must be rated for voltage...IE can`t use phone calbe or communication cable with no voltage rating stamped on it Thanks.


2017 / 2014 NEC & Related Books and Study Guides

#91254 - 01/06/05 03:44 PM Re: door bell and garage opener wiring  
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
why not just use 18/2 or 20/2 thermostat wire?


Peter

#91255 - 01/06/05 08:25 PM Re: door bell and garage opener wiring  
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
Take a look into Article 725. Most garage door operators I've wired are marked as having a class 2 control circuit, so your wire would have to be one of the ones in 725.71. You can also look at Table 725.61 for a substitution matrix.

I don't have a bell transformer handy, but you'll probably find that it is marked as a class 2 power source, thus requiring one of the cables from 725.71.

Most of the 18-2 doorbell wire sold in my area is CL2, which would be a suitable substitute for any of the required cable types for a dwelling

Tom


Few things are harder to put up with than the annoyance of a good example.

#91256 - 01/07/05 11:07 AM Re: door bell and garage opener wiring  
Reel-Break  Offline
Member
Joined: Apr 2002
Posts: 178
nc
Thanks for the numbers I`ll read up.



Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 216
Joined: March 2005
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: 0.017s Queries: 14 (0.004s) Memory: 0.7575 MB (Peak: 0.8873 MB) Zlib enabled. Server Time: 2017-03-24 14:00:04 UTC