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From: Jim Eichner [SMTP:jeich...@statpower.com]
Sent: Tuesday, March 09, 1999 3:23 PM
To: 'EMC-PSTC - forum'
Subject: RE: Rack System Safety (UL1950/EN 60950) Questions
Re Richard's item 5)...
5.UL requires that all internal equipment be UL Listed
tgr...@lucent.com
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From: WOODS, RICHARD[SMTP:wo...@sensormatic.com]
Sent: Wednesday, March 10, 1999 5:00 AM
To: 'EMC-PSTC - forum'
Subject: RE: Rack System Safety (UL1950/EN 60950) Questions
As I think about this situation
'
Subject: RE: Rack System Safety (UL1950/EN 60950) Questions
As I think about this situation, there is a way of obtaining UL Listing on
the rack and have other certification marks on the internal equipment. Have
UL List just the rack without the equipment. Now you can mix and match the
internal
: Tuesday, March 09, 1999 3:23 PM
To: 'EMC-PSTC - forum'
Subject: RE: Rack System Safety (UL1950/EN 60950) Questions
Re Richard's item 5)...
5.UL requires that all internal equipment be UL Listed or
Recognized.
If that is true
Hello from San Diego:
I said:
1. For the North America, does a NEMA 125 V, 20 A plug meet the
pluggable B definition?
No. The objective of the Pluggable Type B connection is that
of a reliable, non-defeatable earth connection. The NEMA 20 A
plug uses the same
Peter,
Some experiences I have had in past lives follow each of your questions. My
responses are brief due to lack of time. I hope this helps.
Anyone else, please feel free to comment.
Best regards,
Ron Pickard
ron_pick...@hypercom.com
__ Reply Separator
friend, who really
exists. Honest.
-Original Message-
From: WOODS, RICHARD [SMTP:wo...@sensormatic.com]
Sent: Tuesday, March 09, 1999 11:15 AM
To: emc-p...@majordomo.ieee.org; t...@world.std.com
Subject: RE: Rack System Safety (UL1950/EN 60950) Questions
1.Peter
Hello Peter:
1. For the North America, does a NEMA 125 V, 20 A plug meet the
pluggable B definition?
No. The objective of the Pluggable Type B connection is that
of a reliable, non-defeatable earth connection. The NEMA 20 A
plug uses the same earthing connection as the NEMA 15 A
Peter,
Responses are below each question. (NOTE: The answers to these questions are
easily found in the UL 1950 3rd ed. standard).
-Original Message-
From: pe...@itl.co.il [mailto:pe...@itl.co.il]
Sent: Tuesday, March 09, 1999 11:26 AM
To: emc-p...@majordomo.ieee.org; t...@world.std.com
1. Peter, equipment with the standard NEMA plug is considered to be
Class A..
2. Equipment using the heavy duty Industrial plugs complying with IEC
are considered to be Class B. I have never seen those used inside rack
mounted equipment.
3. If the power supply is UL Listed, then
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