List members,
Could someone please tell me what the maximum leakage current for products
certified to EN 60601-1 and UL 2601-1 is? I know it is 3.5mA for Information
Technology Equipment and it is much lower for medical products but I don't
know what it is.
Thanks,
Kurt Andrews
Compliance Engin
I am commenting on a question and reply which is further back in this
continuing conversation.
> Question: For products with external AC power supplies, would the NRTL
mark need > to be on the supply and the product? Or the supply only?
Previous reply: The external ac power supply must be "
Hi,
Just having NRTL accreditation from OSHA is not necessarily enough. Some
states (i.e. North Carolina and Oregon) and local authorities (i.e. City of
Las Angeles) have there own requirements. These local regulations can
override the OSHA NRTL program. The NRTL must have/get approval from th
Hi,
Be careful of the hot light bulbs. I was witness to a "fire" when the foam
tiles on the ceiling came loose and touched the hot flood lamps. The "fire"
smoldered for a long time till the fire sprinklers activated. I also
learned that normal sprinklers heads don't spray up. Because the spri
Ken,
Contact Educated Design & Development at 800-806-6236. They sell a Hand Held
Spray Tester and various models of an Oscillating Spray Tester. According to
their catalog these would both satisfy the test requirements for IPX4.
Kurt Andrews
Compliance Engineer
Tracewell Systems, Inc.
567 Ente
Job Title: Product Safety Engineer
Job Location: San Jose, CA
Company Description:Sanmina is a "Tier-1" electronics manufacturing
services (EMS) company with over 50 world class manufacturing facilities.
Sanmina provides a full spectrum of integrated, value-added services that
includes
Job Title: Product Integrity Engineer
Job Location: San Jose, CA
Company Description:Sanmina is a "Tier-1" electronics manufacturing
services (EMS) company with over 50 world class manufacturing facilities.
Sanmina provides a full spectrum of integrated, value-added services that
inclu
Does anybody know what the regulatory requirements are for ITE equipment
shipping from one company within Sweden to another company within Sweden?
Are they any different than the normal European Union requirements? Is
there any difference in timing (i.e. testing, reports, shipping, etc...)? I
am
Hi Andy:
> Is it possible that a piece of equipment with an NRTL listing can be
> disconnected by a local electrical inspector/electrician enforcing the NEC
> because that paticular NRTL is not "approved" in their jurisdiction?
Yes.
Please recognize:
"NRTL" is an OSHA program gove
A moving and passionate tale with a moral:
DO NOT let anyone screw with your PC boards! Every one of these stories,
from internal tracks that break, to creepage failures due to copper thieving
squares, to bypass capacitors disappearing because "they don't matter all
that much anyway" trace back
Would anyone know where I would be able to purchase an IPX4 tester?
Thanks,
Ken
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Hello Amund,
Frustrating isn't it. Here we have European Norms but the individual
countries are insisting on doing their own testing to the same standard.
There was a meeting in October in Madrid of EFSAC (European Fire and
Security Advisory Council) on this very subject. Go to http://efsac.org
Brian,
Check out the following web site:
http://w3.hike.te.chiba-u.ac.jp/iec417/ver2.0/html/index.html
It has the IEC417 on-line.
I think the AC symbol you are referring to is No. 417-IEC-5032
Brian
Reply Separator
Subject:markings
Author: Brian
Sharon,
>From EN 60950 clause 4.4.4 Materials for enclosures and for decorative parts
Materials used for ENCLOSURES of equipment shall be such that the risk of
ignition and the spread of fire or flames is minimized.
Metals, ceramic materials, and glass which is heat-resistant tempered, wired
or
--
Andrew Carson - Product Safety Engineer
Xyratex Engineering Laboratory
Tele 023 92496855 Fax 023 92496014
--- Begin Message ---
Sharon
If the plastic part is outside the Fire Enclosure and there are no sources of
ignition next to it. (Limited power source). Then the standard regards it as
"
A little home experiment to demonstrate the effect of Cell phones on signal
lines.
Take you old fashioned analogue land line and make a phone call.
Switch on your Cell Phone and hold it say, 0.5m form the phone.
Every time the Cell Phone sends out a signal to handshake with the base station,
you
Hey Chris - Great story, and speaks well to Signal Integrity Engineering,
the offshoot of EMC.
Regards,
Mark Gill
EMC/Safety/NEBS Design & Compliance
C-MAC Design Corporation
-Original Message-
From: Chris Maxwell [mailto:chris.maxw...@gnnettest.com]
Sent: Friday, January 26, 2001 9:38 A
If you removed the plastic piece and still had a complete fire enclosure as
defined by the standards, then the plastic piece is decorative and can be
rated HB. If the plastic piece is a functional part of the enclosure, it
would be V1 or 5V depending on the classification of the equipment.
Jim
-
A copy of IEC417 is not avail to me. Could some pls advise if there are
requirments to mark input and output Vs on component power supplies with the
graphical symbols for AC and DC?
Note that 60950 (Clause 1.7) only requires symbols if the input is DC; but a
respected agency engineer says the sym
Just a little personal experience I want to relate. The EMC people can
really appreciate this. Sorry about the long, conversational tone, but I
think it will help people appreciate how much effort could have been
prevented by following simple EMC design rules.
One of our products has a motherbo
Hello Group,
I have been informed and entertained for many seasons by following the
various safety and EMI/EMC threads of this group. Now it is my turn to ask
for assistance.
What are the safety requirements ( UL 1950, CSA 950, EN 60950 ) for a
plastic bezel on the outside of a metal chassis fo
Rich-
Thanks for the detailed reply to Chris's questions.
Is it possible that a piece of equipment with an NRTL listing can be
disconnected by a local electrical inspector/electrician enforcing the NEC
because that paticular NRTL is not "approved" in their jurisdiction?
Doesn't the NRTL approva
If the power brick is only intended for removal by a qualified service
Engineer, the marking need only be applied to the external rear panel
visible to the user - based on my experience of having units qualified to EN
60065.
Chris
-Original Message-
From: Davis, Mike [mailto:mike_da...@
Hi members
My questions are related to Fire alarm equipment (panels, detectors, etc) and
the approval regime in Europe. Today the EN54-series are mandatory in most/all
countries within EU. But as a manufacturer you have no chance to carry out a
one-stop-shopping/testing for all national approv
No. It has to do, like the other gentleman said, with confusing the system
by having one cell phone talking to two or more towers at the same time.
--
>From: rbus...@es.com
>To: emc-p...@majordomo.ieee.org
>Subject: RE: consumer electronics used on board aircraft
>Date: Thu, Jan 25, 2001
RS105 is the HAEMP requirement. It is 50 kV/m double-exponential type
waveform generated with a parallel plate. This is obviously an unclassified
requirement. There is a somewhat subtle change between D and E. D shows
the peak at less than or equal to 10 ns. E shows the peak at 5 ns. Other
One caveat. If you are on a budget for a room, fluorescents can be very
handy in that they don't add nearly to the heat load that needs to be
removed like incandescents. You need enough incandescents to light the room
sufficiently when the fluorescents are turned off during an RE test.
---
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