In message web-141102...@california.com, dated Mon, 19 Mar 2007,
Robert A. Macy m...@california.com writes:
This question is not meant to sound argumentative, but really is a
sincere question. Your other two points are spot on, therefore I
assume this point is also. but I did not understand
This question is not meant to sound argumentative, but
really is a sincere question. Your other two points are
spot on, therefore I assume this point is also. but I did
not understand it.
What do you mean ...failure of industry to support
standards terminology...?
and what would it take to
In message
be3336be85968d49be01e66d6e365b1e01b5a...@sjc1amfpew01.am.sanm.corp,
dated Mon, 19 Mar 2007, Tarver, Peter peter.tar...@sanmina-sci.com
writes:
We've been on the same page all along, John. My approach to Jody's
post has been to look at what the standard says and let any failure of
From: don_borow...@selinc.com
Sent: Monday, March 19, 2007 9:02 AM
If the power supply in question has a bridge rectifier
connected to the mains of a power system with hot and neutral
conductors, neither side of the capacitor on the DC side of
the bridge can be connected to earth --
In message
be3336be85968d49be01e66d6e365b1e01b5a...@sjc1amfpew01.am.sanm.corp,
dated Mon, 19 Mar 2007, Tarver, Peter peter.tar...@sanmina-sci.com
writes:
If the post-rectifier filter capacitor had one terminal tied to earth,
it would need to comply with Y1, Y2 or Y4 requirements, regardless
From: John Woodgate
Sent: Friday, March 16, 2007 1:23 PM
Tarver, Peter writes:
§1.5.6 looks at X and Y capacitors, and those connected between the
primary circuit and earth. The cathode of the electrolytic capacitor
might not connect to earth, unless the bottom end of the rectifier is
In message
b11802460b4f4b4e963b51adf2fae08b04c4a...@usmafrexmb02.bose.com, dated
Mon, 19 Mar 2007, Tyra, John john_t...@bose.com writes:
Seems pretty clear to me but, since these are not legal modifications
to the standard(s) in questions, it depends on the Agency you are
dealing with as to
...
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John
Woodgate
Sent: Monday, March 19, 2007 9:35 AM
To: emc-p...@ieee.org
Subject: Re: Electrolytic Capacitors in Primary Circuits
In message
b11802460b4f4b4e963b51adf2fae08b04c4a...@usmafrexmb02.bose.com, dated
Mon, 19 Mar 2007
In message
b11802460b4f4b4e963b51adf2fae08b04c4a...@usmafrexmb02.bose.com, dated
Mon, 19 Mar 2007, Tyra, John john_t...@bose.com writes:
I have a copy of the CENELEC Committee OSM decisions for the IEC60065
standard 6th/ 7th editions where the various CENELEC member Agencies
agreed that
In message
768ee6ab7d56d54bb5000ec2dd113e71016be...@de01exm61.ds.mot.com, dated
Mon, 19 Mar 2007, Leber Jody-G19980 jody.le...@motorola.com writes:
I am having trouble convincing an agency that the other side of the
rectifier is not between line conductors. Are you or is anyone else
on the
minutes but will e-mail you a copy after the meeting.
Regards,
John
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Leber
Jody-G19980
Sent: Monday, March 19, 2007 8:48 AM
To: pat.law...@slpower.com
Cc: emc-p...@ieee.org
Subject: RE: Electrolytic Capacitors in Primary Circuits
Pat
...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
pat.law...@slpower.com
Sent: Friday, March 16, 2007 4:29 PM
To: emc-p...@ieee.org
Subject: Re: Electrolytic Capacitors in Primary Circuits
Hi Jody:
UL 60950-1 1st Ed., clause 1.5.6 ('Capacitors in primary circuits')
says:
'A capacitor connected between two
Subject
03/17/2007 01:55 Re: Electrolytic Capacitors in
AMPrimary Circuits
cc
Subject
03/16/2007 03:23 Re: Electrolytic Capacitors in
PMPrimary Circuits
In message
be3336be85968d49be01e66d6e365b1e01b5a...@sjc1amfpew01.am.sanm.corp,
dated Fri, 16 Mar 2007, Tarver
Subject
03/16/2007 03:23 Re: Electrolytic Capacitors in
PMPrimary Circuits
Subject
03/16/2007 03:23 Re: Electrolytic Capacitors in
PMPrimary Circuits
Subject
03/16/2007 03:23 Re: Electrolytic Capacitors in
PMPrimary Circuits
Hi Jody:
UL 60950-1 1st Ed., clause 1.5.6 ('Capacitors in primary circuits') says:
'A capacitor connected between two line conductors of the PRIMARY CIRCUIT,
or between one line
conductor and the neutral conductor, shall comply with IEC 60384-14:1993,
subclass X1 or X2.'
The electrolytic
In message
be3336be85968d49be01e66d6e365b1e01b5a...@sjc1amfpew01.am.sanm.corp,
dated Fri, 16 Mar 2007, Tarver, Peter peter.tar...@sanmina-sci.com
writes:
§1.5.6 looks at X and Y capacitors, and those connected between the
primary circuit and earth. The cathode of the electrolytic capacitor
From: Jody Leber
Sent: Friday, March 16, 2007 11:38 AM
The electrolytic capacitor that sits between the rectifier
and transformer in SMPS is typically not an agency approved component.
Where is this exemption documented in 60950-1, Clause 1.5.6?
Jody -
Sorry about the earlier e-mail.
Pardon me, my response to Jody was sent prematurely. Please disregard
it.
Peter
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From: Leber Jody
Sent: Friday, March 16, 2007 11:38 AM
The electrolytic capacitor that sits between the rectifier
and transformer in SMPS is typically not an agency approved component.
Where is this exemption documented in 60950-1, Clause 1.5.6?
Which requirement were you referring to for
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