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Stationary storage battery systems shall be located and constructed in accordance with this section.
52.3.2.1.1
Stationary storage battery systems shall be housed in a noncombustible, locked cabinet or other enclosure to prevent access by unauthorized personnel unless located in a separate equipment room accessible only to authorized personnel.
52.3.2.1.2 Location
52.3.2.1.2.1
Stationary storage battery systems shall not be located in areas where the floor is located more than 75 ft (22,860 mm) above the lowest level of fire department vehicle access, or where the floor level is more than 30 ft (9144 mm) below the finished floor of the lowest level of exit discharge, unless otherwise permitted by 52.3.2.1.2.
52.3.2.1.2.2
Installations on noncombustible rooftops of buildings exceeding 75 ft (22,860 mm) in height that do not obstruct fire department rooftop operations shall be permitted when approved by the AHJ.
52.3.2.1.3 Separation
Rooms containing stationary storage battery systems shall be located in high-hazard occupancies, or shall be separated from other areas of the building as stated in 52.3.2.1.3.1 and 52.3.2.1.3.2. Stationary storage battery systems shall be allowed to be in the same room with the equipment they support.
52.3.2.1.3.1
In other than assembly, educational, detention, and correction facilities; health care, ambulatory health care, and day care centers; and residential board and care and residential occupancies, stationary storage battery systems shall be located in a room separated from other portions of the building by a minimum of a 1-hour fire barrier.
52.3.2.1.3.2
In assembly, educational, detention, and correction facilities; health care, ambulatory health care, and day care centers; and residential board and care and residential occupancies, stationary storage battery systems shall be located in a room separated from other portions of the building by a minimum of a 2-hour fire barrier.
52.3.2.1.4 Outdoor Installations
Stationary storage battery systems located outdoors shall comply with this paragraph, in addition to all applicable requirements of Section 52.3.
52.3.2.1.4.1
Installations in outdoor enclosures or containers that are occupied for servicing, testing, maintenance, and other functions shall be treated as stationary storage battery system rooms.
52.3.2.1.4.2
Battery arrays in noncombustible containers shall not be required to be spaced 3 ft (914 mm) from the container walls.
52.3.2.1.4.3
Stationary storage battery systems located outdoors shall be separated by a minimum 5 ft (1524 mm) from the following:
  1. Lot lines
  2. Public ways
  3. Buildings
  4. Stored combustible materials
  5. Hazardous materials
  6. High-piled stock
  7. Other exposure hazards
52.3.2.1.4.4
The AHJ shall be permitted to authorize smaller separation distances if large-scale fire and fault condition testing conducted or witnessed and reported by an approved testing laboratory is provided showing that a fire involving the system will not adversely impact occupant egress from adjacent buildings, or adversely impact adjacent stored materials or structures.
52.3.2.1.4.5 Means of Egress
52.3.2.1.4.5.1
Stationary storage battery systems located outdoors shall be separated from any means of egress as required by the AHJ to ensure safe egress under fire conditions, but in no case less than 10 ft (3048 mm).
52.3.2.1.4.5.2
The AHJ shall be permitted to authorize smaller separation distances if large-scale fire and fault condition testing conducted or witnessed and reported by an approved testing laboratory is provided showing that a fire involving the system will not adversely impact occupant egress.
52.3.2.1.4.6 Security of Areas
Outdoor areas in which stationary storage battery systems are located shall be secured against unauthorized entry in an approved manner.

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