Install and Connect SCC1 (Single-Carrier Cabinets)
Ground DC-Powered Cabinets
370 SI Installation and Upgrades
June 2004
Ground DC-Powered Cabinets
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CAUTION:
System grounding shall comply with the general rules for grounding contained in Article
250 of the National Electrical Code (NEC), National Fire Protection Agency (NFPA) 70,
or the applicable code at the installation site.
NOTE:
Before connecting the cabinets to the approved ground, determine the best method of
grounding. See Approved Grounds
on page 761 for more information. Also, locate the
approved ground as close to the cabinets as possible.
NOTE:
The ground plates and cabinet clips are installed later in this procedure.
Task List: Connect the cabinet grounds on the
J58890R DC Power Cabinet
and the Single-Carrier Cabinets
1 Connect DC Power Cabinet Ground on page 370
2 Connect DC Battery Cabinet Frame Ground
3 Connect DC Power Distribution Unit Ground on page 372
4 Connect Single-Carrier Cabinet Ground on page 373
Connect DC Power Cabinet Ground
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1 At the DC Power Cabinet, connect a 1 AWG (#70) (7 mm
2
) ground wire to the GROUND
DISCHARGE bar. See Figure 110, DC Power Cabinet Grounding,
on page 371.
2 Route the ground wire out of the cabinet and terminate it on the approved ground.
CAUTION:
The approved ground must be connected using the correct gauge wire, terminated with a
listed clamp, and identified with a grounding tag (FORM 15657NR, or equivalent).
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