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www.enersys.com Publication No. US-FL-IOM-002 January 2007
Table 5.1 (continued)
CONSIDERATION RECOMMENDATION
Ventilation Adequate ventilation must be provided, so as to prevent hydrogen gas
from exceeding a 2% concentration as shown in IEEE 484-1987.
Hydrogen accumulation must be limited to less than 2% of the total
volume of the battery area.
Ventilation must be adequate to ensure that pockets of trapped
hydrogen gas do not develop, particularly at the ceiling.
See Appendix for additional information
Grounding It is recommended that the racks be grounded in accordance with NEC
and/or local codes.
Codes Building codes and fire codes may require a spill containment system
for battery installations. Please consult local building codes. EnerSys
offers spill containment systems. Contact your EnerSys sales/ service
representative for more information.
Floor Reasonably level. Shim up to 1/4 inch (6 mm) maximum to level battery
rack or cabinet front to rear and side to side. Capable of supporting the
weight of the battery as well as any auxiliary equipment.
Anchoring Anchoring should meet all local, state, and federal codes and all
industry standards.
Floor anchoring and its design are the responsibility of the user.
Racks EnerSys flooded stationary batteries designed for racks or cabinets
must be installed on racks specifically designed for those batteries by
the manufacturer. Use of any other rack design is the responsibility of
the user.
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