Installing The System Ground - Nortel Meridian 1 Option 11C Planning And Installation Manual

Page 126 of 408

Installing the system ground

Cabinets powered by the same service panel
Cabinets powered by different service panels
Grounding instructions for cabinets
553-3021-210 Standard 7.00
Make sure you read, "Grounding requirements" on page 39, before
proceeding further.
Proper grounding is extremely important.
Failure to complete the following steps could result in a system that is:
• unsafe for personnel using the equipment
• not protected from lighting or power surges
• subject to service interruptions.
Insulated ground wire must be used for system grounding.
For each system cabinet in collocated multi-cabinet situations, a #6 AWG
(#40 Metric Wire Gauge) ground wire is connected from the cabinet to an
NTBK80 ground bar. The ground bar is in turn connected to a ground source
(the ground bus in the AC service panel).
For each system cabinet in collocated multi-cabinet situations, a #6 AWG
(#40 Metric Wire Gauge) ground wire is connected from the cabinet to an
NTBK80 ground bar. If any cabinet cannot be powered from the same service
panel, it must be grounded separately from the others back to the service
panel that supplies it.
The following procedure describes how to ground Option 11C cabinets.
Repeat the steps for each cabinet installed in the system.
Procedure 7
Grounding the cabinets
1 If the cabinet is equipped with a power supply unit, make sure
that the AC power cord is disconnected from the power outlet.
January 2002
WARNING