Hello Brian:
For safety purposes, we are concerned with the
insulation between mains and accessible parts.
Safety standards specify insulation requirements
for both Class I and Class II constructions. The
requirements are a function of the mains voltage
and the expected mains overvoltage.
My
Hi folks!
I have run across a symbol on an approvals label that I need help with.
The symbol is a white letter R on a black background written with a sort of
swooping style (sorry about the
description!)
Best Regards
Charles Grasso
Compliance Engineer
Echostar Communications Corp.
Tel:
While I am waiting for my test sample to (finally) die...
OSHA does NOT mandate any EMC requirements through the NRTL program. OSHA
has adopted the FDA guidelines for RF-emitting devices used in the work
place. OSHA bases these limits on FDA guidelines, which also establishes
the limits used by
Some brief history on OSHA and NRTL program.
http://www.osha.gov/dts/otpca/nrtl/nrtl/slide18.html
A bit more detail is at:
http://a257.g.akamaitech.net/7/257/2422/01jan20051800/edocket.access.gpo
.gov/2005/05-22630.htm (this link might wrap around in e-mail...go to
item B named B. Why Did
This analysis is a good overview on requirement for connection to an IT
power system. Much better than my somewhat glib reply.
In general, I have not demanded that agency-issued certs specify IT power
in the conditions of acceptability if the construction documentation and
test data clearly
Dave, I am not sure when OSHA, NEC or others put it into place the
safety requirements, but I believe the NRTL program was started in the
area of late 1987 or early 1988. So the requirement for a product used
in the work place to have a safety certification would have had to been
in place by then.
In message 000701c80c50$7d8f9d20$d600a...@tamuracorp.com, Brian
O'Connell oconne...@tamuracorp.com writes
I have noted a CTL decision for IEC 60335-1 that seems to indicate that
CECC 42200 certification is also acceptable. Also applicable to 60950-1
?
I don't know.
Also, I am looking a the
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