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Tom:
Great information, I was just throwing out the concept of using a box,
Thats the great thing about this list, the varing areas of knowlege that
work together to make a project work.
Hank
----- Original Message -----
From: <INDUSTELE@aol.com>
To: Military Vehicles List <mil-veh@uller.skylee.com>
Sent: Monday, May 15, 2000 1:21 PM
Subject: Re: [MV] waterproof 24v to 12v converter fantasy (cross-posted)
> *This message was transferred with a trial version of CommuniGate(tm) Pro*
> Just a couple of corrections to Hank's suggestions.
>
> NEMA boxes indicate that it was built to National Electrical Manufactures
> Association standards, and unless you add a number to it does NOT mean
that
> it is waterproof. The you would need to ask for a NEMA 4 box or a NEMA 12
> but a 12 is stainless, expensive, and hard to cut.
>
> SJO is an indication of lower voltage flexiable cable, for voltages under
300
> volts, as SO cable is good up to 600 volts. The cord connector is
actually
> refered to as a cord grip body or CGB for short, and is sized based on the
> diameter of the wire.
>
> Sorry to be picky, but want the right information. Also be aware that
there
> is a difference in the electrical business between water tight and water
> proof and it's confusing to some. Water tight (NEMA 4 and NEMA 12)
prevents
> water from entering the cabinet; while water proof boxes (NEMA 3R)can get
> water in them, but the design of the equipment in them is such that a
little
> water in the bottom will not cause an electrical short.
>
> Tom Campbell - Birmingham, Alabama
> Electrical Engineer - Master Electrician in 7 states - 27 years heavy
> industrial work
>
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This archive was generated by hypermail 2b29 : Thu Jun 01 2000 - 22:37:12 PDT