UFC 3 -520-01
June 10, 2002
Figure 14-3. Larger Battery Rack Configurations (End View)
Cell
Cell
Must Provide Clearance
Behind Rack for Access
Cell
Cell
Cell
Cell
Must Be Open in
Front of Rack to
Cell
Provide Access
a. Three-step battery
b. Two-tier, two-step battery
14-1.2.5 Obtain the battery rack from the same manufacturer that supplies the battery.
Other battery racks might not be designed for the particular battery to be installed and
can place stress on the cell containers due to inadequate clearances. The eventual
consequence of this stress can be container failure and subsequent electrolyte leakage.
14-1.2.6 Select and install battery racks in accordance with International Conference
for Building Officials (ICBO) Uniform Building Code (UBC) criteria based on seismic risk
zone. Table 14-1 shows the rack requirements based on seismic zone.
Table 14-1. Battery Rack Requirements by Seismic Zone
Seismic Zone
Description
0--earthquakes are unlikely.
Racks do not require cell restraints.
1--distant earthquakes might cause minor motion.
Racks require side restraints.
2-4--local or nearby earthquake.
Racks require heavy-duty construction
with side restraints and should have
additional floor anc hor points.
14-1.2.7 Floors of battery areas should be of an acid-resistive material, or be painted
with acid-resistive paint, or be otherwise protected. Provision should be included to
contain electrolyte spills from vented lead-acid batteries.
14-5
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