Group
I've been asked by a manufacturer of Power line communication equipment for the
origin of the Permanently excluded and Permanently or Dynamically excluded
frequency ranges in tables A.1 and A.2 of EN 50561-1. Specifically why certain
bands are in specific tables.
I can't find enough
Hi!
Sad enough to say, Italy regularly undergoes earthquakes with casualties and/or
damages to structures with a period of about 10 to 20 years.
That without forgetting that Greece is also a EU member.
Kind regards
Canio Dichirico
ESO
www.eso.orghttp://www.eso.org
Germany
P.S. Mt Aetna has
Some of the product specific standards include requirements for protection
against siesmic effects, although I don’t know of any which are harmonised
under the Machinery Directive. Probably the one closest is: BS ISO 11031.
Cranes. Design principles for seismic load” which is still a draft
In message 870f09f3f5b848a4a769b67b04b83...@sehste15d1be4.hs20.net,
dated Tue, 25 Nov 2014, Charlie Blackham char...@sulisconsultants.com
writes:
Anyone know how these tables were agreed upon?
By very long and intensive negotiation in the standards committee
responsible.
--
OOO - Own
I’m looking for some specialist advice on the relevant standards for wide area
paging systems. Please would anyone with relevant expertise who would be
willing to help drop me a line direct and I will let you know more specifically
what I’m looking for.
Thanks
Nick.
Nick Williams
Director
Thanks for the input.
Because our products are Laboratory Equipment and not Industrial Machines, I
assume NFPA 79 would not apply. So the SCCR on the nameplate would not be
required. It would be difficult to provide anyway. Since we are only required
to provide supplementary over current
In message
64D32EE8B9CBDD44963ACB076A5F6ABB026C5D9A@Mailbox-Tech.lecotech.local,
dated Tue, 25 Nov 2014, Kunde, Brian brian_ku...@lecotc.com writes:
with a 230VAC powered instrument where the energy to produce an Arc
Flash is somewhat limited.
There is quite a lot of energy available. It
Hello Brian,
The role the enclosure plays in arc flash protection may be less than you would
expect. The concern about arc flash isn't for normal operation of the
equipment. Arc flash and arc blasts are considered an issue for the servicing
of equipment. The concern is that service personnel
FYI - Regarding the SCCR, it's really not about the interrupt rating of
overcurrent protection devices. It relates to the ability of the equipment
to withstand the fault currents that overcurrent devices would let through
in a short circuit event. Looking through the supplement in UL 508A is
Thanks very much to all of you for your replies.
Carl
On Mon, 24 Nov 2014 03:18:01 -0500, Allen, Chris chris.d.al...@hp.com
wrote:
The TS 103-021 series has been replaced by ES 203-021 series.
If you obtain an ES 203-021 test report it can be used in some countries
outside the EU
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