No problem Doug. Glad I could help. This group is a great asset to all of us
and I try to contribute when I can and I certainly hope that others continue
to do so as well. I have learned quite a bit from this group since I started
in compliance almost three years ago. I especially enjoy reading Rich Nute's
very informative and insightful answers to others' questions. He is a great
asset to this group!
Kurt
Doug wrote:
>You are correct Kurt. I read back through the CFRs and
>for the life me can't figure out why I thought "mains"
>was a critical word ...
-----Original Message-----
From: Doug [SMTP:dmck...@gte.net]
Sent: Tuesday, October 03, 2000 1:55 AM
To: emc-p...@majordomo.ieee.org
Subject: Re: MRAs
You are correct Kurt. I read back through the CFRs and
for the life me can't figure out why I thought "mains"
was a critical word ...
Thanks ...
"Andrews, Kurt" wrote:
>
> Doug,
>
> >From my reading of 29 CFR 1910 I believe that it applies to all
electrically
> powered equipment, not only mains powered.
>
> >From 1910.302(a) and (a)(1): Scope - Covered. The provisions of
1910.302
> through 1910.308 of this subpart cover electrical installations
and
> utilization equipment (my italics) installed or used within or on
buildings,
> structures, and other premises....
>
> And from 1910.399(a) Definitions applicable to 1910.302 through
1910.330:
> Utilization Equipment: Utilization equipment means equipment which
utilizes
> electric energy for mechanical, chemical, heating, lighting, or
similar
> useful purpose.
>
> Since it specifies that any equipment which uses electric energy
is covered
> I have taken this to mean that it also includes 24 and 48 VDC
powered
> equipment since it of course uses electric energy.
>
> We have had 48VDC powered ITE equipment Listed using UL 1950. The
scope of
> 1950 specifies any mains powered or battery powered equipment with
an input
> rating up to 600V. (There is no minimum voltage listed).
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