ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Al Hildenbrand - Minneapolis - obituary
by bcpappas - 02/02/23 08:01 PM
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 26 guests, and 10 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jun 2002
Posts: 159
L
Member
I installed a cat 5 cable as part of a proposed dimming system in my newly refubed kitchen. Problem is that I cant afford dimmer pack at the moment. Missus D is not making tea any more! I though I might stick a few relays in a box in the meantime and control them using the cat 5. Cant find any info on net on current carrying capacity probably because they were not designed to carry current per se.


regards

lyle dunn
Joined: Dec 2001
Posts: 2,498
T
Member
isn't cat 5 22AWG?

Joined: Aug 2001
Posts: 7,520
P
Member
24 AWG -- Certainly adequate for the sort of relay coil currents you'd need in this application (i.e. < 250mA). It will have to be low-voltage switching, as CAT5 isn't rated for 240V.

I have to ask: Why CAT5 for a proposed dimmer system? Did you just happen to have some spare?

Joined: Jun 2002
Posts: 159
L
Member
Paul,
It is a Hamilton-Litestat dimmer pack and they stipulate the wiring system. I guess CAT 5 is very available and adequate for remote control.


regards

lyle dunn
Joined: Dec 2006
Posts: 33
W
Member
Seems weird that they would specify Cat 5

Joined: Jul 2002
Posts: 8,432
Likes: 3
Member
A lot of the Clipsal C-Bus stuff here uses Cat-5e for it's wiring.

Joined: Oct 2006
Posts: 745
E
Member
CAT5 is definitely overkill, but widely-available. I am sure that's the primary reason. Unless there's a very unusual need, all telephone/data wiring is 24 gauge. The exception is CAT6, which is 23 gauge.

22 gauge was the norm for surface wiring that was run around baseboards to make it more resilient to damage during installation.

Regardless, it's more than enough to handle the small control circuit loads as Paul mentioned.


---Ed---

"But the guy at Home Depot said it would work."
Joined: Aug 2001
Posts: 7,520
P
Member
Overkill without a doubt -- As Ed says, I guess they just figure it's widely available now and a lot of people will know what it is.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
timmp
timmp
Leo, IN, USA
Posts: 28
Joined: June 2004
Top Posters(30 Days)
BigB 4
triple 3
Popular Topics(Views)
303,036 Are you busy
232,132 Re: Forum
216,845 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5