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0 members (),
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Key:
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Global Mod,
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Joined: Jan 2004
Posts: 1,507
OP
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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
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Joined: Jan 2005
Posts: 5,316
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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.
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Joined: Apr 2002
Posts: 7,282 Likes: 3
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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
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Joined: May 2007
Posts: 169
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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.
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Joined: Apr 2002
Posts: 7,282 Likes: 3
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That's the perfect world scenario!
Unfortunatley, in our real world....
John
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Joined: May 2005
Posts: 984
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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
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Joined: Apr 2002
Posts: 7,282 Likes: 3
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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
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Posts: 362
Joined: April 2003
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