GE Industrial Solutions SG Series UL LISTED BATTERY CABINETS - Manual (Page 9)

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Installation and O&M manual for SG battery cabinets - OPM_SGS_XXU_ISG_BAT_XUS_V020.doc Installation Guide SG Series UL Battery cabinets
3.7 GROUNDING
The battery cabinets have ground studs. Use an equipment-grounding conductor to connect the lugs of the
cabinets together and to connect the cabinets to the ground bus bar in the UPS module. See Figure 5.
3.8 REMOTE BATTERY CABINETS/RACKS
When batteries cabinets/racks other than GE’s are used, a remote battery disconnect switch with over-current
protection is required to be installed per the National Electrical Code. Over-current protection is needed also if
the battery cabinets are separated from the UPS. See the over-current protection ratings of the battery
cabinets to calculate the applicable circuit breaker size. Contact your GE Sales Representative for more
information.
1. Verify battery area has adequate ventilation and operating temperature complies with manufacturer’s
specification. If installed, vented lead-acid batteries MUST have adequate ventilation to remove explosive
gases per local and national codes. Contact Consulting Engineer for more information.
2. Low voltage control wiring must be kept separate from power wiring and run in separate conduits.
3. Ensure that battery cabinets are properly grounded according to local code requirements. If there are any
questions concerning batteries, battery racks or accessories, contact your GE Sales Representative.
! CAUTION
Cables between batteries and the UPS should be run in matched pairs, positive-with-negative, within each
conduit or cable run. Grouping like-polarity cables together (i.e., positive-with-positive and negative-with-
negative) will cause stress or damage to the cables, conduit or bus-work.
3.9 BATTERY WIRING
Power wiring to the battery cabinet connects positive and negative cables along with ground wire from the
battery cabinet to the associated UPS. Connection of the UPS to the battery cabinet serves to both charge and
discharge the batteries (when needed). The battery disconnect (circuit breaker) requires a control cable. GE
battery cabinets include power and control cables to join multiple cabinets together into a system. See Figure
8. Additional (field-supplied) power or control wiring might be necessary to connect the battery cabinet system
to the UPS.
! WARNING
Battery connections on each tier of the GE battery cabinet are disconnected for safety during shipment. If a
local electrical contractor completes these connections as part of start-up, a GE Field Service Engineer will
verify the connections. Otherwise the GE Field Service Engineer will complete and verify the connections.
Polarity must be correct when wiring the battery cabinet to the connected equipment (positive to positive;
negative to negative). An improperly installation can result in personal injury or damage to equipment.
NOTE
A GE Specialist can perform a detailed inspection of the entire battery system to ensure it meets current IEEE
standards. This inspection service is recommended because batteries are a very critical part of the UPS system.
NOTE
DC power and battery circuit breaker control cables are provided with GE battery cabinets for use between
multiple cabinets. Power cables are sized for interconnecting battery cabinets. Field supplied cabling must be
provided to connect stand-alone battery cabinets to the UPS module. Connections from the final battery cabinet
to the UPS are provided in the field.
NOTE
The lengths of wires between each battery cabinet and the transition cabinet are to be the same (within 10%
tolerance) to keep the wire resistances of the battery system equal.