Ed,
The requirement of 6.3.3 (ref 950/A4) is meant to prevent mains voltages on
a telecom line in case there is a single fault in class I equipment between
basic insulation and PE - and this PE terminal is not connected properly or
plugged into a socket outlet without PE).
From your
Quite right - it works well and I now have the text including the tables!
Thanks,
Jim Eichner, P.Eng.
Manager, Engineering Services
Xantrex Technology Inc.
Mobile Power
web: www.xantrex.com http://www.xantrex.com
Any opinions expressed are those of my invisible friend, who really
exists.
I read in !emc-pstc that Ken Javor ken.ja...@emccompliance.com wrote
(in 20020118175519.JJOG20810.femail29.sdc1.sfba.home.com@[65.11.150.27]
) about 'RF Field Uniformity and Antenna location', on Fri, 18 Jan
2002:
Assuming
it is, I can't imagine using a horn, which is a constant aperture antenna
I read in !emc-pstc that scott@jci.com wrote (in OFF94D1E4A.FD295DB
3-on85256b45.00491...@na.jci.com) about 'RF Field Uniformity and
Antenna location', on Fri, 18 Jan 2002:
4. Our experience has been that position 3, is generally lower in field
strength when compared to other points in the
A few observations..
APS--An APS camera is one that uses Kodak's patented Advanced
Photo System film cartridge. The only big difference from other
35mm film cartridges is that you just pop it in and close the lid.
It self winds. No film trailer to fool with.
Electronics--An APS camera's
We have a potential requirement to front end one of our servers with a
transfer switch. The model we are looking at is a 19 rackmount version. Our
intent is to install it in our cabinet adjacent to our server in a computer
room. What are the FCC and EMC requirements for this configuration?
I don't know what an APS camera is but if the issue is unintentional
emissions from an 8 MHz clock then that would have to be ok because the user
would be subjected to higher field intensities than that just walking
around.
--
From: cecil.gitt...@kodak.com
To:
My mother has a variable-rate pacemaker. Pacemaker manufacturers
typically have a list of caveats including use of/proximity
to certain electronics. It varies with manufacturers.
Check with the manufacturer of the particular pacemaker.
(PS: I would doubt anyone would answer this question
From: Cecil A. Gittens
If someone has a pacemaker and wants to use a APS Camera with an internal
clock 8MHz
on the main CPU circuit board.
My question is it safe for that person to use the APS Camera
---
This message is from the IEEE EMC Society Product
A few issues.
You haven't said if the quiet zone is the same 1.5 meter square. Assuming
it is, I can't imagine using a horn, which is a constant aperture antenna
with gain increasing with increasing frequency. You need a constant gain
antenna, a log periodic.
The antenna separation needs to
This question concerns a NEBS and EU test setup. This is not a direct
compliance question but it supports an EUT compliance test setup.
It appears to me that E1 and T1 systems can be extremely susceptible to
noise. I have a question concerning a T1 100 ohm balanced twisted pair cable
being
Hi everyone and thanks for all of the info thus far.
Here is some more info on the filter: The input to the filter derives it's power from batteries at a C.O. The output is meant to power telecom equipment. The input and output are considered TNV-2. Now even though the filter inputis considered
To All,
We are working toward adding capability to perform Radiated Immunity Free
Field Testing (Substitution Method), which is very similar to the IEC
61000-4-3 method. The main differences are the following:
1. We have a 15 position target area for uniformity instead of 16
2. Uniformity
Hello Andrew, et al;
World Electricity Supplies which has been referenced in this thread is
available from the Int'l Product Safety Bookshop which can be found on the
Safety Link at:
www.safetylink.com/bookshop.html
Regards, Art Michael
John is correct, the official UK voltage is 230/400VAC. Just what comes
out the wall socket is not necessarily the same. Those strange tolerance
limits of of 230 +6%/-10% were carefully chosen so the European
suppliers could meet the harmonized level without having to make many
chances.
Crabb,
Forwarded for John Roche. Please direct all replies directly to John
(do not 'reply all') Thanks.
Best Regards,
Dave Heald
EMC-PSTC Admin
Original Message
Subject: Compliance Engineer seeking position
List-Post: emc-pstc@listserv.ieee.org
Date: Fri, 18 Jan 2002 09:11:11
Peter
The star distribution with the center point neutral runs from the
distribution grid substation to the facility. So the utility company
provides the consumer with the four wires, which they then distribute
as required.
In a residential area, the three phases are split every third house,
Just to clarify the position in the UK, although it was stated below
that the nominal voltage is 415V, I am almost certain that the DECLARED
VOLTAGE is 400V. I base this on the fact that domestic consumers
were advised that the declared voltage changed from 240V to 230V,
and 230 X 1.732 = 400V,
Hi All,
can somebody tell me if a Modem Card or the Stand alone Modem require
approval in Vietnam ?
I heard that the answer is different for a stand alone modem and a modem
card .
many thanks for your answer
Pierre-Marie Andre
Senior Approval Engineer
Hello Jim,
Since 01/01/2002 it is possible to receive copies of old OJ in TIFF format
at no cost - I think back to 1989 and from 1998 also in PDF format.
Try it! http://europa.eu.int/eur-lex/en/search/search_lif.html
Best regards
Helge Knudsen
Test Approval manager
Niros Telecommunication
Hello Kim,
The Marine Directive is a Old approach Directive, which means it contains
the necessary requirements for compliance = No harmonized standards
required!
If you need the Directive text I can mail it to you.
Best regards
Helge Knudsen
Test Approval manager
Niros Telecommunication
There is a new company dealing with this and they provide similar equipment
for a lower price try
Chase Systems Inc.
230 Route 206, bldg #2
Flanders, NJ 07836
Phone 973-252-6605 email chase...@gti.net
Tell them you got the address from me perhaps I get an better price than.
There is also
Can someone tell me where I can find the quality recycle mark.
Thanks,
Raymond Li
---
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/
I believe the answer is that the Marine Equipment Directive (96/98/EC) is
not a New Approach directive. Rather than the mechanism you're used to, the
directive and its amendment(s) contain direct references to standards.
Have a look at http://europa.eu.int/eur-lex/en/lif/dat/1998/en_398L0085.html
There are no ETSI standards dealing with surge on antenna port.
The only body that are working on this item is ITU-T sg5 but are only start
to study the problem.
THis is normally understand not a immunity test but a survival test
(resistibility) and I know to different way: one is inject a High
Also Italy have a nominal phase to phase of 380VAC.
Ciao
Paolo
At 11:20 1/17/02 +, Andrew Carson wrote:
Terry
Then nominal EU phase to phase voltage is 400VAC with a +6/-10% Tolerance.
Distribution is Three Phase Star, Earthed Neutral.
Some countries are still a little behind in the
26 matches
Mail list logo
