ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,735 Are you busy
169,494 Re: Forum
162,784 Need opinion
Who's Online Now
0 registered members (), 84 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#187610 - 07/03/09 06:18 PM LED sign Training  
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
I am looking for information on LED sign technology and construction techniques. The purpose is to put together an instructional program for sign training.


George Little

Work Gear for Electricians and the Trades

#187612 - 07/03/09 06:35 PM Re: LED sign Training [Re: George Little]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
The 2008 NEC calls for sign shops to be UL listed shops.

A lot of the things you need to know about spacing, etc., is contained in the appropriate UL standard.


#187630 - 07/04/09 01:20 PM Re: LED sign Training [Re: renosteinke]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,809
Brick, NJ USA
George:

1st lesson to sign installers:
Hire a qualified electrical contractor.
Do not use 'zip cord' to wire the individual letters/arrays.
They must have UL for the complete sign assembly.



John

#187902 - 07/13/09 10:18 PM Re: LED sign Training [Re: HotLine1]  
ChicoC10  Offline
Member
Joined: May 2007
Posts: 169
CA
Quote
They must have UL for the complete sign assembly.



Hahahahahahahah!!!....uhhhhhhh....Hahahahahahahah!!!

Like that's going to happen. These guys build these on the fly.

Last edited by ChicoC10; 07/13/09 10:20 PM.

#187917 - 07/14/09 10:08 AM Re: LED sign Training [Re: ChicoC10]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,809
Brick, NJ USA
That's the perfect world scenario!

Unfortunatley, in our real world....


John

#187920 - 07/14/09 11:04 AM Re: LED sign Training [Re: HotLine1]  
ghost307  Offline
Member
Joined: May 2005
Posts: 900
Chicago Illinois USA
UL Listed????
HA!!!!

I got the cut sheets on an building's outdoor sign near Chicago and each letter was individually lit and had an SO cord on it.
The sheet called for the Contractor to drill a hole in the outside wall behind each letter for the cord to go through and mount a receptacle for each cord above the drywall ceiling.
Does ANY of this sound Kosher?
But does it sound unsettlingly familiar?


Ghost307

#187936 - 07/14/09 04:01 PM Re: LED sign Training [Re: ghost307]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,809
Brick, NJ USA
Ghost:

"Does ANY of this sound Kosher?
But does it sound unsettlingly familiar?"

No it is not 'kosher'!
Yes, it sounds all to familiar


John


Member Spotlight
HotLine1
HotLine1
Brick, NJ USA
Posts: 6,809
Joined: April 2002
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: 0.014s Queries: 15 (0.003s) Memory: 0.7851 MB (Peak: 0.9425 MB) Zlib enabled. Server Time: 2017-04-26 17:47:08 UTC