andy.wh...@nokia.com
_
-Original Message-
From: ext Collins, Jeffrey [mailto:jcoll...@ciena.com]
Sent: Friday, June 13, 2003 5:08 AM
To: emc-p...@majordomo.ieee.org
Subject: GR1089 4.5.9 Intrabuilding Lightning Strike Telecom Ports
All,
We
AM
To: emc-p...@majordomo.ieee.org
Subject: GR1089 4.5.9 Intrabuilding Lightning Strike Telecom Ports
All,
We have taken the waiver to this requirement by using shielded cables that
were grounded on both ends. Since it is common for carriers to float
one end of their grounds we are planning
Jeff,
I think the difference may be in the distributed ground arrangement
in the CBN. In a surge event, the CBN would distribute the energy from
a lightning event and common mode voltage differences within the CBN
would minimal (hence the exemption).
In an IBN (shielded w/isolated ground),
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