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Cabinet Ground and Central Office Ground
Cabinet Ground Procedure
The next step is to ground the cabinet framework. Local grounding practices will determine the
grounding method and the size of cable connected to the cabinet. A 2 - gauge pigtail (847992070), as
shown in Figure 5 - 6, is provided for this purpose.
Step
Run and connect the framework ground lead as shown in Figure 5 - 6.
Torque connection as specified in Figure 5 - 6.
Central Office Ground Procedure
The system ground should be connected to the building's principal ground point (Central Office
Ground). The conductor size must conform to local standards.
Centralized Architecture:
Follow local practice for Centralized Architecture
Distributed Architecture:
Connection to the power system is through the M10 studs located on the distribution return bus.
See Figure 5 - 6 (full - height cabinet).
Step
Run and connect the system ground lead to the initial cabinet return bus. This connection will connect the re-
turn side of the dc system to earth ground.
Torque connections as specified in Figure 5 - 6.
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Cabinet Ground
Action
Central Office Ground for Distributed Architecture
Action
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