Doug Henderson@3COM
04/23/97 05:02 AM
Hello All,
Does anyone happen to know if Japan has a similar derating scheme as the US
& Canada does regarding mains attachment plug ends???
That is; UL1950/CSA 950 D1 Deviation under 3.2.1 (Connection to Primary),
snip "the attachment plug shall be rat
The answer to question is the same..
I also came from a major PC vendor and shared some of the experiences of my
collegues.
The three vendors I gave you (Seagate, Maxtor & Quantum) all put significant
time & money into EMC and
test their drives at a component level. They all strive to meet the
Item Subject: cc:Mail Text
Fellow Professionals
I have another question regarding class II equipment. My power supply
intends to use a printed wiring spark-gap for transient/lightning
protection. It's inherent design requirements are such that the air-gap
spacing are less than those specified f
Good question.
The answer is I don't really know.
I have been trying to find out.
Charles Grasso
EMC Engineer
StorageTek
Tel:(303)673-2908
Fax(303)661-7115
--
From: dmck...@paragon-networks.com[SMTP:dmck...@paragon-networks.com]
Sent: Tuesday, April 22, 1997 8:31 AM
To: 'emc-p..
Mark Frankfurth wrote,
>We are looking into the purchase of a surge generator for 1000-4-5
> compliance testing on a 208V 3-phase industrial product. It would be
> helpful to hear of experiences and advice from the PSTC members
> regarding the generators from suppliers like Keytek, Schaffn
-- [ From: Paul Herrick * EMC.Ver #2.3 ] --
Does anyone know of any regulatory reason to control the startup surge current
to ITE units? We have measured this startup current to be up to 90A for the
first half cycle of applied voltage. The unit is cord set connected and uses
four switching power
What are the names for the different voltage levels in the different
countries of Europe for the Low Voltage Directive.
I mean what are the names of the voltages below 50VAC and 75VDC, the
voltage from 50VAC to 1000VAC and 75VDC to 1500VDC and the voltages above
those levels for the different count
Questions regarding VCCI?
1) Is VCCI for a product ever MANDATORY for it to be imported into Japan?
2) If VCCI is not mandatory, is it mandatory to meet certain emissions
limits for importation into Japan?
3) If VCCI is not mandatory, for what type of products is VCCI most desirable
(that
Dear Friends,
There were several good suggestions for the question on how to handle
a product that has a high leakage current, so here is a summary of
what I received:
Reference EN61010 - 4.4 Testing in single fault conditions.
4.4.2.2 The pro
While you appear to be looking at
non-military applications, the U.S.
MIL-STD-1399/300A paragraph 5.2.9
limits the surge current per its Figures
14 and 15.
Jim Sketoe
>>> Paul Herrick
<0007515...@mcimail.com> 04/22/97
09:09pm >>>
-- [ From: Paul Herrick * EMC.Ver #2.3
] --
Does anyone know of a
Issued by Industry Canada:
Interference-Causing Equipment Standard
ICES-001, Issue 2
Title: INDUSTRIAL, SCIENTIFIC AND MEDICAL RADIO FREQUENCY
GENERATORS (or ISM RADIO FREQUENCY GENERATORS for short)
This document states under Clause 1.2.1 " apply to every ISM radio
frequency generator manufactur
Dear EMC-PSTCer's,
I have a client who wants to obtain transmitter approvals
in the following countries for the following transmitter
types. If you have information or offer a service/testing
please send me email. Thank you.
The questions are:
Is 433.92MHz narrowband allowed for short range tr
Dave Perlmutter@3COM
04/23/97 05:27 AM
If you look at section 7.1 of ICES-003 you will find that CSA 108.8 is
referenced.
In section 4.1 of ICES-003, the method of measurement is defined by "the
publication referred to in Section 7.1".
Regards,
David Perlmutter
3Com
- Previous Message
13 matches
Mail list logo
