Best Backboard Wiring Practices and Standards?

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Re: Best Backboard Wiring Practices and Standards? #446330 07/22/07 10:56 AM
Joined: Feb 2005 Posts: 12,347 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,347 Likes: 4 New York	Most jobs call for a Fire Proof paint I've only had one idiot architect that I can remember spec that for the telephone back board. It isn't an NEC requirement and I know of no local code here that requires it either. I just painted it with our standard silver gray and nobody knew the difference. I do remember fire resistant paint being common many, many years ago on electrical backboards. I wouldn't even know where to get it today. -Hal CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.

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Re: Best Backboard Wiring Practices and Standards? #446331 07/22/07 11:16 AM
Joined: Jan 2004 Posts: 6,648 Sarasota FL skip555 RIP Moderator-Nisuko-Tie, General
skip555 RIP Moderator-Nisuko-Tie, General Joined: Jan 2004 Posts: 6,648 Sarasota FL	heres powder that can be added to cheap interior paint for fire retardant $10 pack plus $5 a gal for oops paint 15 a gal to be fire retardant. Quote Works in inexpensive, low grade Interior Flat Latex Paint only!! I asked a GTE engineer years ago about the requirement on a project we where doing and he said "don't worry about it " so I never have Skip ------------------------------------ Serving SW and West central Fl since 1984

Re: Best Backboard Wiring Practices and Standards? #446332 07/22/07 03:47 PM
Joined: Jan 2005 Posts: 15,382 Likes: 13 Fayetteville, NC EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire Joined: Jan 2005 Posts: 15,382 Likes: 13 Fayetteville, NC	FR paint or plywood is not something that is enforced by the NEC, it's a building code issue. I believe that BOCA and ANSI standards do require fire-retardant paint or plywood. This is definitely enforced around here as recently as last Thursday on an inspection of a job we did. Ed Vaughn, MBSWWYPBX

Re: Best Backboard Wiring Practices and Standards? #446333 07/22/07 04:11 PM
Joined: Aug 2004 Posts: 9,169 Likes: 18 SOUTH TEXAS RATHER BE FISHING Admin
RATHER BE FISHING Admin Joined: Aug 2004 Posts: 9,169 Likes: 18 SOUTH TEXAS	Here in schools it's mandated to provide fire retardant plywood for backboards. Any painted backboard must leave all fire retardant stamps unpainted so you end up with a patch work looking backboard.

Re: Best Backboard Wiring Practices and Standards? #446334 07/26/07 02:47 AM
Joined: Jul 2007 Posts: 8 montreal canada RcTelecom Member
RcTelecom Member Joined: Jul 2007 Posts: 8 montreal canada	guys you know what encker is that real usefull you dont need a plywood with tose Charles Cerminara Director of instalation and selling departement

Re: Best Backboard Wiring Practices and Standards? #446335 07/28/07 03:05 AM
Joined: Oct 2005 Posts: 1,078 The Berkshires ,Massachusetts county wide Member
county wide Member Joined: Oct 2005 Posts: 1,078 The Berkshires ,Massachusetts	Quote Originally posted by Aircom KC: I like this for residential panels; Looks fancy on the outside, but once it's open its a familiar sight. were do you get them?

Re: Best Backboard Wiring Practices and Standards? #446336 07/29/07 08:10 AM
Joined: Jul 2006 Posts: 731 Houston, TX. USA IPKII Member
IPKII Member Joined: Jul 2006 Posts: 731 Houston, TX. USA	Might I also add that I don't suscribe to "over-labling". I always try to consider the next tech coming in behind me so he won't have to try & figure out which tails are the CO lines, PRI, T-1, Digital & Analog ports. When it comes to external paging, we always use Valcom & I always insist on 1 cable home run for every speaker/horn terminated on their own 66 blocks, down one side only, with the audio & -24V looped down the other side & bridge to my cables. So when it comes to trouble-shooting, I can just pull all the clips & get down to it. :thumb: www.phonelinetech.com "Can I Still Call Out?"

Re: Best Backboard Wiring Practices and Standards? #446337 07/29/07 01:32 PM
Joined: May 2007 Posts: 5,058 Likes: 5 NYC Silversam Moderator-1A2, Cabling
Silversam Moderator-1A2, Cabling Joined: May 2007 Posts: 5,058 Likes: 5 NYC	IPKII - Home runs are always better. They're not real practical on large PA jobs, but the more, the merrier. (I just finished an 8,000+ speaker job at JFK airport and all those home runs just wouldn't have worked) One thing though. My practices have always been to NEVER run solid wire for a speaker. With the vibration associated with a speaker or horn I was always taught to go with stranded wire to prevent the solid wire from eventually breaking off. I like the idea of pulling the bridge clips to test - very handy! And if you're running audio and -24 I imagine then you're using powered speakers. When I last priced them out (admittedly a long time ago) they weren't cost effective against a constant voltage system with a centralized amplifier(s) once you got past 10-12 speakers - is that still the case? Sam "Where are we going and why are we in this hand basket?"