I can attest to John's recommedations. Many years ago I
worked in a company which had as an aftermarket product
a vinyl cutting division. Machines which took large reels of
vinyl, ran off specific lengths at high speed to spools which
were shipped off to customers.
The speeds were up in t
"That which does not kill us, makes us stronger."-Friedrich Nietzsche
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel you
I want to thank everyone for their quick and concise answer. I appreciate
all feedback I received as response to my concern and voluntary interest of
people to share their knowledge/experience with others.
Best regards,
Carmen
> -Original Message-
> From: Tom Smith [SMTP:tom.sm...@sa
Two quotes for which I can not give attribution.
"That that does not kill me, makes me stronger."
"That that does not kill me, only delays the inevitable."
"Nerad, Daren HS-SNS" on
07/30/2001 04:13:20 PM
To: "'oover...@lexmark.com'"
<"Oscar_Overton/Lex/Lexmark.LEXMARK"@sweep
Warning: Life may cause injury or death.
Not MAY; Death is one of the very few things guaranteed about life!!
(Remember Marvin Gaye singing about "taxes, death and trouble" ? )
Daren A. Nerad
EMC Engineer
815.226.6123
-Original Message-
From: oover...@lexmark.com [mailto:oover...@lexm
Hi Israel and John:
> >I wonder how to specify creepage distance for Information Technology
> >Equipment.Table 6 in UL1950 or EN60950 specifies minimum creepage of
> >10 mm for Working voltage = 1000 V, pollution degree 2, material group IIIb
> >(basic insulation) linear Interpo
>John Barnes wrote:
>One defense is to use tinsel or static-discharger brushes
>to bleed charge off the paper...Another technique is to make
>plastic parts.. of antistatic materials...make sure that every
>shaft has a grounding contact...use conductive grease in the bearings...
John,
Have you tri
CS03 will provide you with the proper telecom requirements, and you must
also comply with IC ICES-003 for EMI (similar to FCC Part 15) as well as the
CSA safety requirements.
Regards,
Tom Smith
Manager, Homologation and Safety
Sanmina Canada ULC
Phone (403) 295-5156
Cell Phone (403) 875-1291
FAX
The standard does not say to extrapolate, but when we were in a similar
situation with a product several years ago, the UL engineer and his reviewer
agreed to use the extrapolation of the Creepage table. Always check with
your agency person, since we have also found that what was acceptable to
som
Carmen,
FCC requirements don't directly concern 60950.
They are additional to it. Part 68 is now
handled differently than in the past; check
out the FCC Web page. And you should be aware
that meeting FCC Class A emission limits is
not enough. If sold to the public, your product
must meet the st
Alex,
I have written an article for Printed Circuit Design magazine on "Designing
Electronic Equipment for ESD Immunity". Part 1 appeared on pages 18-26 of the
July 2001 issue (volume 18 number 7), and Part 2 will be in the August issue.
Printers and copiers can be quite nasty generators of ES
I'm incorporating a modem design into a IEC/UL/CSA 60950 compliant product.
Consequently, I need to conform to telco standards for interfacing to a
telephone line. I'm aware that in the US a modem must pass FCC 68 as well
as FCC 15 part A (commercial) testing.
What standards exist in Canada th
<000601c11881$36e04600$1e44d1d1@stella>, Vygovsky, Yury
inimitably wrote:
>By interpolation the creepage for 1500v = 15mm or more, for 2000v=20mm or
>more.
No, that would be extrapolation, and the standard doesn't say you can do
that.
--
Regards, John Woodgate, OOO - Own Opinions Only. http://w
Actually there are many meanings for PDU. Here are those listed in a web site
of acronyms (http://www.acronymfinder.com/).
Acronym Definition
PDU Packet Data Unit
PDU Parachute Deployment Unit
PDU Philippine Digital Upgrade
PDU Photographic Development Unit (RAF)
PDU Pilot Display Unit
P
Hi George,
Sorry I could not get to EMC-PSTC issues earlier.
Standards Australia are not the right people. they are only a standards
development and publishing organisation (the National Standards body
facilitating development of national standards where required and Australian
participation in
,
Israel Yeshurun inimitably wrote:
>I wonder how to specify creepage distance for Information Technology
>Equipment.Table 6 in UL1950 or EN60950 specifies minimum creepage of
>10 mm for Working voltage = 1000 V, pollution degree 2, material group IIIb
>(basic insulation) linear Interpolati
16 matches
Mail list logo
