Spaces about battery systems shall comply with 110.26. Working space shall be measured from the edge of the battery cabinet, racks, or trays. For battery racks, there shall be a minimum clearance of 25 mm (1 in.) between a cell container and any wall or structure on the side not requiring access for maintenance.
For battery racks, there shall be a minimum clearance of 25 mm (1 in.) between a cell container and any wall or structure on the side not requiring access for maintenance. Battery stands shall be permitted to contact adjacent walls or structures, provided that the battery shelf has a free air space for not less than 90 percent of its length.
Floors shall be of acid resistant construction unless protected from acid accumulations. Face shields, aprons, and rubber gloves shall be provided for workers handling acids or batteries. Facilities for quick drenching of the eyes and body shall be provided within 25 feet (7.62 m) of battery handling areas.
Illuminance levels in the battery room shall be designed to meet IESNA Lighting Handbook recommendations with a minimum illumination level of 300 lux (30 fc). The lighting design shall consider the type of battery rack and the physical battery configuration to ensure that all points of connection, maintenance and testing are adequately illuminated.
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