Re: Power Supply

[Robert L Bass <sales@xxxxxxxxxxxxxxxxxxxxx>]

> Here's a funny one.
> Town of Huntington, NY can waive the installation of 120V interconnected
> smoke detectors if a listed control panel with fire capability is
> installed in a residential occupancy. The kick is the building inspector
> says that Residential Code of NY requires tha system be powered by a
> non- unpluggable Transformer or 120V! Any one see that in NFPA 72 or 70?
> There was some discussion about a guard around a transformer- to prevent
> unwarranted removal.
> My take is #1 its FPL wiring
>             #2 FPL listed transformer or Class 3 is acceptable
> ( he wants a permanently wired transformer- like a bell tranny!)
> My reply was most Manufacturers submit the transformer(plug-in)AND
> Control Panel for listing by UL- I violate that by substituting a tranny of
> non-listed origin and open up a liability issue!
> Comments and Replys appreciated!

Interesting argument about the listing issue, Mike.  If he
insists, the solution is to use a boxed, open field transformer
with 110VAC leads.  Have a look at Altronix' AC power supplies.
If the inspector refuses to accept the listed transformer for the
job, ask him to state it in writing on town stationery.  Get him
to sign off on the submittals with the replacement unit included
and you're butt is covered, albeit at an unnecessary cost
increment.

I suspect he's simply mistaken.  He's probably used to commercial
fire alarms and not up to par on what is done in the residential
aspect of the trade.

--

Regards,
Robert L Bass

Bass Burglar Alarms
The Online DIY Store
http://www.BassBurglarAlarms.com

--

Never underestimate the power of very stupid people in large
groups.