GE Industrial Solutions Galaxy Power Systems - Manual (Page 63)

Installation Guide for Galaxy Power Systems
Issue 12 August 2012 Cabinet Floor Mounting and Battery Stand Connection 5 - 17
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
Figures 5-13 and 5-14, is provided for this purpose.
Cabinet Ground
Step Action
1 Run and connect the framework ground lead as shown in
Figure 5-13 or 5-14.
2 Torque connection as specified in Figure 5-13 or 5-14.
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 5-13 (full-height cabinet) or 5-14
(half-height cabinet).

Central Office Ground for Distributed Architecture
Step Action
1 Run and connect the system ground lead to the initial
cabinet return bus. This connection will connect the return
side of the dc system to earth ground.
2 Torque connections as specified in Figure 5-13 or 5-14.