For a screened room to function as a screened room, no earth is required.
It's the metal conduit of the shielding material that will be reference
potential
(if you insist : ground) for all measurements. All external cables (mains)
should
be filtered to this reference potential, preferably to the
,
Barry Ma
-
Original Text
From: ed.pr...@cubic.com, on 10/7/98 9:34 AM:
From: Bailin Ma b...@namg.us.anritsu.com
Subject: RE: Grounding of screen room
Date: Tue, 6 Oct 98 14:35:43 PDT
To: emc-p...@ieee.org, TREG t...@world.std.com
Cc: Mekonen Buzuayene
---
From: Bailin Ma b...@namg.us.anritsu.com
Subject: RE: Grounding of screen room
List-Post: emc-pstc@listserv.ieee.org
Date: Wed, 7 Oct 98 9:18:11 PDT
To: emc-p...@ieee.org, emc-p...@ieee.org
Cc: Mekonen Buzuayene
From: Bailin Ma b...@namg.us.anritsu.com
Subject: RE: Grounding of screen room
Date: Tue, 6 Oct 98 14:35:43 PDT
To: emc-p...@ieee.org, TREG t...@world.std.com
Cc: Mekonen Buzuayene mbuzuay...@namg.us.anritsu.com
Hi Lauren,
It is my understanding
Our chamber is grounded via the electrical conduit used with the mains
power. Never had a problem.
--
From: peterh...@aol.com[SMTP:peterh...@aol.com]
Reply To: peterh...@aol.com
Sent: Tuesday, October 06, 1998 1:56 AM
To: emc-p...@majordomo.ieee.org
Subject:
My guess for a first pass is empty it out, put a spectrum analyzer in
with a broadband antenna and see if you can 'hear' anything at a level
that is near what you are testing for.
Cheers,
Lauren Crane
-Original Message-
From: peterh...@aol.com [SMTP:peterh...@aol.com]
Sent: Tuesday,
Hi Peter.
I have always isolated my chambers from any sort of building ground and
used a separate grounding grid. The ground was measured using a 'ground
megger'.
Chuck Jackson
--
From: peterh...@aol.com[SMTP:peterh...@aol.com]
Reply To: peterh...@aol.com
Sent: Monday,
--
From: WOODS, RICHARD
Sent: Tuesday, October 06, 1998 5:28 AM
To: emc-p...@majordomo.ieee.org
Subject: RE: Grounding of screen room
Our chamber is grounded via the electrical conduit used with the mains
power. Never had a problem.
--
From: peterh...@aol.com
Peter
If you can locate the facility electrical drawings, I would recommend
starting with those. It's considered good design practice if you have
isolated facility power (air handlers, lights, etc.) and technical power
(designated for exclusive use by instrumentation and other equipment
requiring
Hi Lauren,
It is my understanding that properly grounding the screen room is important
in Conducted emission test and have little effect on Radiated emission
test. The way you described is a very good and simple method for evaluating
the shielding effectiveness (SE) of the screen room. The
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