Nicely put, but I want to emphasize one point. The foil in most cables
doesn't have a metal to metal contact. Where the foil overlaps itself the
polyester on the "underside" is what is in contact with the foil "outside".
The type cable you are mentioning is called an "e" fold if I remember
correc
forwarding for she...@harbornet.com
Reply Separator
Subject:Re: EMC Compliance job opening
Author: she...@harbornet.com (Sheila A. Schultz)
List-Post: emc-pstc@listserv.ieee.org
Date: 11/7/00 12:22 PM
11/7/2000
Job Title: Senior EMC Compliance En
Richard,
The term that I ran across many times while researching my book was "optical
coverage"-- as though you put a light bulb inside the shield and measured what
percentage of its light leaked out. The basic assumptions are:
1. Electric and magnetic fields inside the shield are totally blocked
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Subject:FW: UL1950 - Clause 2.5.5
Author: " Peter Tarver "
List-Post: emc-pstc@listserv.ieee.org
Date: 11/7/00 1:25 PM
-Original Message-
From: Tarver, Peter [SC1:9031:EXCH]
REMINDER:
> There will be a joint meeting of the IEEE Atlanta Section and the Atlanta
> Chapter IEEE EMC Society on November 15, 2000. The specifics are listed
> below:
> Topic: "EMC and the PCB - Fundamental Concepts and Design Techniques"
> Speaker: Mark Montrose of Montrose Compliance Services,
No. The foil has lower inductance at high frequencies. The combination of
foil and braid gives the best protection in a flexible cable.
--
>From: "SERGIO LUIZ DA ROCHA LOURES SERGIO"
>To:
>Subject: Coaxial cable
>Date: Tue, Nov 7, 2000, 8:14 AM
>
>
> Group
>
> We are using a coaxial
Sergio,
A "foil & braid" shield is quite common on high-speed cables. If a cable is
properly terminated and you don't have common-mode problems, most of its
radiated emissions will be from holes in the shield. Thus "optical coverage",
the percentage of the shield's nominal area that is actually
Group
We are using a coaxial cable with two shields. One is a metallic mesh and the
other is a aluminium foil. This foil is known as "static foil".
What is the use of this foil? Is this used for electrostatic reasons?
Regards
Sérgio Rocha Loures
Siemens Ltda. - Brazil
ICN FL QEL
Tel: +55 41 3
The Curtis-Straus Update (formerly Conformity-Update) for the week
ending Nov. 3, 2000 is now available at:
http://www.conformity-update.com
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
To canc
The Curtis-Straus Update (formerly Conformity-Update) for the week
ending Nov. 3, 2000 is now available at:
http://www.conformity-update.com
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
To canc
For those that don't know, Kemet the capacitor company has a very useful
downloadable capacitor impedance calculator available on their web page. Go
get it and try it,
http://www.kemet.com/kemet/web/homepage/kechome.nsf/vabypagename/spicesoft
Jim Allan
Manager, Engineering Services
Milgo Solutio
The commission covered this question in their explanatory document. If a
harmonized standard exists for the radio suites, then there is no need to
consult with a Notified Body nor is there a need to apply the number of the
Notified Body after the CE marking.
The document can be found at
http://e
Hi Robert.
I do not know about availability in the US but in the UK
green/yellow electrical grade sleeving is available in various
diameters (100 m reel lengths).
A short length of green/yellow sleeving over the earth where
the cord is stripped back may be a solution to your
problem.
Would
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