ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Trumpy 5
Recent Posts
What do you do?
by HotLine1. 09/20/17 08:44 PM
Supporting conduit bodies
by ghost307. 09/18/17 12:12 PM
Thermal Imaging Camera upgrade
by Potseal. 09/18/17 11:57 AM
Linear Power Supply Quits Under Load
by JoeTestingEngr. 09/15/17 11:37 PM
Recreational Trailer Power Supply
by David1. 09/14/17 01:55 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
240,842 Are you busy
176,597 Re: Forum
168,518 Need opinion
Who's Online Now
0 registered members (), 30 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#7386 - 02/02/02 09:56 AM low voltage lighting  
mlundy  Offline
Junior Member
Joined: Jan 2002
Posts: 2
I have seen a low voltage lighting system used in a few commercial locations that I would like to gather more information on.

The lighting system resembles a knob-and-tube wiring system. There are two conductors (sometimes insulated, sometimes not) installed approx. 4" apart in free air. Low voltage heads are connected to and supported by these branch circuit conductors. The secondary of a power transformer supplies the two conductors.

Does anyone know what this lighting system is called. More importantly can you refer me to manufacturers of such. Thanks in advance.


Work Gear for Electricians and the Trades

#7387 - 02/02/02 07:58 PM Re: low voltage lighting  
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
These are usually called cable lights. I recently installed a system and they look great! Cant think of the manufacturer right now but search the web for cable lights and you will find something im sure. If I think of the manufacturer I'll post it here. You may want to knoe that these are a bit of a pain to install.


#7388 - 02/03/02 08:54 AM Re: low voltage lighting  
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
I dont know where you are located but in the Boston area you could go to Wolfers Lighting and they would help you. Check out their web site www.wolfers.com hit the search button and then click on track and cable lights. They have a huge selection and quite a variety of styles.


#7389 - 02/03/02 09:20 AM Re: low voltage lighting  
Sandro  Offline
Member
Joined: Dec 2001
Posts: 444
Stoney Creek, ON, Canada
Home Depot carries these lights too.


#7390 - 02/03/02 02:05 PM Re: low voltage lighting  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
See the National Electrical Code ARTICLE 411 Lighting Systems Operating at 30 Volts or Less
411.1 Scope.
This article covers lighting systems operating at 30 volts or less and their associated components.
411.2 Definition.
Lighting Systems Operating at 30 Volts or Less. A lighting system consisting of an isolating power supply operating at 30 volts (42.4 volts peak) or less, under any load condition, with one or more secondary circuits, each limited to 25 amperes maximum, supplying luminaires (lighting fixtures) and associated equipment identified for the use.
411.3 Listing Required.
Lighting systems operating at 30 volts or less shall be listed for the purpose.


Joe Tedesco, NEC Consultant


Member Spotlight
akmaster
akmaster
alaska
Posts: 70
Joined: June 2012
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.017s Queries: 14 (0.003s) Memory: 0.7675 MB (Peak: 0.9053 MB) Zlib enabled. Server Time: 2017-09-21 10:19:44 UTC