GE Industrial Solutions H2007001 G21 Series - Manual (Page 34)

Infinity D Power System Installation Guide: -48V Plants H2007001
Issue 2.0, June 3, 2009 34
Connect Central Office Ground (COG)
Step Action
1. Locate CO Ground Termination
Busbar for DC Return.
Note: Landings are compatible with lugs
with 1” hole spacing for 3/8” hardware.
2.
Secure Central Office Ground connection.
Use:
(2) 801273129 3/8-16 x 1in bolt
(2) 801829607 3/8-inch lockwasher
(2) 802841635 3/8-inch flatwasher
If required by local code or practice, treat
with an oxidation inhibitor such as
NO-OX.
3.
Use 9/16” socket. Torque to 240 in·lbs (27
Nm)
CO Return Ground Termination
Busbar