Liebert Series 600T installation manual Preferred Grounding Configuration, Battery Systems

TO OUTPUT

DISTRIBUTION

GROUNDING

ELECTRODE

PER NEC 250-24

Figure 7. Preferred Battery Cabinet Grounding Configuration

7.7.Preferred Grounding Configuration, Battery Systems

Large, open-rack battery systems are normally either locally grounded or left ungrounded, depending on local code requirements.

Battery cabinet systems, on the other hand, should be grounded to the UPS ground bus bar. Figure 7 above illustrates how a simple one-cabinet system would be grounded. For systems with multiple cabinets, the same configuration would apply. However, for simplicity the installer can connect all the battery cabinet grounds together and run a single ground conductor (in the same conduit as the phase conductors) to the UPS ground.

14 Installation Manual