Hi Bob:
Been there, done that.
Regardless whether the requirements for side and top
openings APPEAR from the text to be for prevention
of electric shock, they also apply to fire enclosures.
The way the standard is written, the text appears to
not require a fire enclosure for the sides
I have come up with a question and will try to strip it to its essentials.
Consider a part which requires a fire enclosure, as a hypothetical example a
primary rectifier bridge with reinforced insulation. It is safe to touch, with
no live parts, so top openings or side access is not restricted. A
Hi All,
Does anyone know when Japan (VCCI) will require telecom port conducted
emission testing for Ethernet ports on ITE? I believe VCCI and FCC are
supposed to adopt the new CISPR standards.
Thanks,
Tim Pierce
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Ron,
Yes, this is true. The 1990 National Electrical Code said that equipment
electrically connected to a telephone network manufactured after July 1, 1991
must be Listed. The July 1, 1991 date was an extension granted after the 1990
NEC was published because the telephone industry needed
Tim,
According to MIL-HDBK-454B, Guideline 1, Safety Design Criteria - Personal
Hazards, the answer is yes, NRTL certification is required for commercial
off-the-shelf (COTS) equipment, such as a laptop or its power supply.
The following is from Paragraph 4.1 of the document above:
4.1 COTS
Daniel,
I would interpret 'New bands' as bands that have been approved for certain
applications. If you look at pages 24 to 26 of the document, you will see that
the new bands are for Railway Applications (Annex 4), Equipment for detecting
movement and alert (Annex 6), and Radio Frequency
Dear all experts,
For the lastest version of ERC 70-03 document ( date: 30 May 07 ), does anyone
know the meaning of new bands and blanked in the countries list? Are these
bands harmonised?
Thanks.
Regards,
Daniel.
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All
Is anybody aware of any particular compliance requirements for low voltage
transformers imported into China?
Ian Gordon
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Hi,
Do USA DoD require Certification of items such as test equipment and
specialist support equipment that is used in DoD establishments in the
US of A?
AS an example of what I mean, if the DoD buy a laptop, is it a
requirement that the power supply be NRTL certified?
Regards
Tim
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