ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
sparky 5
Recent Posts
Dimmable LED 2x4 lay in fixtures
by ghost307. 12/15/17 08:13 AM
2017 NEC Changes
by ghost307. 12/15/17 08:09 AM
Casino Wiring methods
by HotLine1. 12/09/17 10:44 AM
Ground wire Size to water Line.
by HotLine1. 12/05/17 12:11 PM
Flexible conduit to an outside Spa
by gfretwell. 12/05/17 12:28 AM
New in the Gallery:
Gallery Test
Popular Topics(Views)
243,057 Are you busy
179,498 Re: Forum
170,416 Need opinion
Who's Online Now
0 registered members (), 21 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#187610 - 07/03/09 05:18 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 05:35 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 12:20 PM Re: LED sign Training [Re: renosteinke]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,880
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 09:18 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 09:20 PM.

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


Member
Joined: Apr 2002
Posts: 6,880
Brick, NJ USA
That's the perfect world scenario!

Unfortunatley, in our real world....


John

#187920 - 07/14/09 10:04 AM Re: LED sign Training [Re: HotLine1]  
ghost307  Offline
Member
Joined: May 2005
Posts: 921
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 03:01 PM Re: LED sign Training [Re: ghost307]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,880
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
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 222
Joined: March 2005
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: 0.015s Queries: 15 (0.004s) Memory: 0.7858 MB (Peak: 0.9437 MB) Zlib enabled. Server Time: 2017-12-15 17:37:01 UTC