On Sat, 24 Dec 2011 16:41:38 -0800, miso wrote:
Is there any code for wire beneath 48V?
Yep. It's called signaling or communications cable. Network wiring
and telco are covered as NEC article 800.
http://ecmweb.com/nec/code-basics/electric_article_communications_circuits/
The basic it is to keep the stuff away from power cables.
I though the whole idea behind
low voltage wiring is that it is code free. Otherwise you would need an
electrician to wiring up a new phone outlet.
There's no such thing as code free. If the NFPA had its way, there
would be specifications for the toilet paper.
The trouble with networking experts is these are all the guys who were
run out of the alarm business when ADT and others started their free
installations. They became networking experts, home theater experts,
etc. Not that I blame them for finding new jobs where they can be self
employed, but quality is all over the map.
Nope. Real cable experts are usually BICSI certified:
https://www.bicsi.org/single.aspx?l=2464,4192,4194
Note that BISCI also has a wireless designer certification:
https://www.bicsi.org/double.aspx?l=2572&r=2574
I'm tempted. Only $345... ouch.
However, I agree about the quality. I only got the jobs that no sane
and competent installer would accept. If I make a profit, I might
actually document my work or label a few things.
Don't get me wrong. Some of these networking guys are really sharp. I
use a local guy for auto parts that is a CNI. Trouble is it is more
profitable to sell parts on the net than compete with the rest of the
networking firms. I have a friend that does networking strictly for
commercial and municipal jobs, and survives pretty much by having a long
list of jobs well done. Nobody in city hall wants to be the guy that
hired the clown network company, and so they write the bids with enough
legal mumbo jumbo that few first timers want to compete.
Yep. However, the reason is different. The convoluted specs are
usually to avoid legal complications and to cover the customers ass
when the whole mess goes to litigation. I've been asked to carry
oversight insurance, with the customer as the sole beneficiary, just
in case they screwed up the job specifications. (Hint: I don't do
much wiring these daze).
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
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http://802.11junk.com
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