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From: Rob Legg [SMTP:r...@potentia.ca]
Sent: Friday, May 18, 2001 8:49 AM
To: Richard Meyette; 'Tania Grant'; emc-p...@majordomo.ieee.org
Subject: RE: Disconnect Devices for Telecom Equipment
Group,
Continual reference to cent
7;; 'emc-p...@majordomo.ieee.org'
Subject: RE: Disconnect Devices for Telecom Equipment
Tania,
The -48V centralized DC power systems used in the central offices of
telecommunications companies are limited to 60 VDC or less under normal
operating conditions, including during charg
, 2001 12:22 PM
To: 'Tania Grant'; 'emc-p...@majordomo.ieee.org'
Subject: RE: Disconnect Devices for Telecom Equipment
Tania,
The -48V centralized DC power systems used in the central offices of
telecommunications companies are limited to 60 VDC or less under normal
operating co
Grant [mailto:taniagr...@msn.com]
Sent: Wednesday, May 16, 2001 7:18 PM
To: Richard Meyette; 'emc-p...@majordomo.ieee.org'
Subject: Re: Disconnect Devices for Telecom Equipment
Rick,
A -48 volt source is considered a secondary circuit, but that does not
necessarily make it a SELV circuit.
Rick,
A -48 volt source is considered a secondary circuit, but that does not
necessarily make it a SELV circuit. I also don't believe that even if your
equipment installation should be proven to be powered by a SELV circuit that
the disconnect requirements of Section 2.6 do not apply. Here i
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