ADOPTS WITH AMENDMENTS:

NFPA 1, 2015

Heads up: There are no amended sections in this chapter.
Stationary storage battery systems having an electrolyte capacity of more than 100 gal (378.5 L) in sprinklered buildings or 50 gal (189.3 L) in unsprinklered buildings for flooded lead-acid, nickel-cadmium, and valve-regulated lead-acid (VRLA) batteries or 1000 lb (454 kg) for lithium-ion and lithium metal polymer batteries used for facility standby power, emergency power, or uninterrupted power supplies shall be in accordance with Chapter 52 and Table 52.1.

Table 52.1 Battery Requirements

Requirement Nonrecombinant Batteries Recombinant Batteries Other
Flooded Lead-Acid Flooded Nickel-Cadmium (Ni-Cd) Valve-Regulated Lead-Acid (VRLA) Lithium-Ion Lithium Metal Polymer
Safety caps Venting caps Venting caps Self-resealing flame-arresting caps No caps No caps
Thermal runaway management Not required Not required Required Not required Required
Spill control Required Required Not required Not required Not required
Neutralization Required Required Required Not required Not required
Ventilation Required Required Required Not required Not required
Signage Required Required Required Required Required
Seismic control Required Required Required Required Required
Fire detection Required Required Required Required Required
Permits, where required, shall comply with Section 1.12.

52.2.2

AMENDMENT
This section has been amended at the state or city level.
Batteries shall be provided with safety venting caps as follows in 52.3.1.1 through 52.3.1.3.
Vented lead-acid, nickel-cadmium, or other types of nonrecombinant batteries shall be provided with safety venting caps.
VRLA or other types of sealed, recombinant batteries shall be equipped with self-resealing flame-arresting safety vents.
Lithium-ion and lithium metal polymer batteries shall not require safety venting caps.
VRLA, lithium-ion, and lithium metal polymer battery systems shall be provided with a listed device or other approved method to preclude, detect, and control thermal runaway.
Battery systems shall be permitted in the same room as the equipment that they support.
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.
In other than assembly, educational, detention and correction facilities, health care, ambulatory health care, day care centers, residential board and care, and residential occupancies, battery systems shall be located in a room separated from other portions of the building by a minimum of a 1-hour fire barrier.
In assembly, educational, detention and correction facilities, health care, ambulatory health care, day care centers, residential board and care, and residential occupancies, battery systems shall be located in a room separated from other portions of the building by a minimum of a 2-hour fire barrier.
Rooms, buildings, or areas containing free-flowing liquid electrolyte in individual vessels having a capacity of more than 55 gal (208 L) or multiple vessels having an aggregate capacity exceeding 1000 gal (3785 L) shall be provided with spill control to prevent the flow of liquids to adjoining areas.
An approved method and materials for the control of a spill of electrolyte shall be provided that will be capable of controlling a spill from the single largest vessel.
VRLA, lithium-ion, lithium metal polymer, or other types of sealed batteries with immobilized electrolyte shall not require spill control.
An approved method to neutralize spilled electrolyte shall be provided.
For nonrecombinant batteries and VRLA batteries, the method shall be capable of neutralizing a spill from the largest battery to a pH between 7.0 and 9.0.
Lithium-ion and lithium metal polymer batteries shall not require neutralization.
For flooded lead-acid, flooded nickelcadmium, and VRLA batteries, ventilation shall be provided for rooms and cabinets in accordance with the mechanical code and one of the following:
  1. The ventilation system shall be designed to limit the maximum concentration of hydrogen to 1.0 percent of the total volume of the room during the worst-case event of simultaneous "boost" charging of all the batteries, in accordance with nationally recognized standards.
  2. Continuous ventilation shall be provided at a rate of not less than 1 ft3/min/ft2 (5,1 L/sec/m2) of floor area of the room or cabinet.
Lithium-ion and lithium metal polymer batteries shall not require ventilation.
The battery environment shall be controlled or analyzed to maintain temperature in a safe operating range for the specific battery technology used.
Doors or accesses into the following shall be provided with approved signs:
  1. Battery storage buildings
  2. Rooms containing stationary storage battery systems
  3. Other areas containing stationary storage battery systems
For rooms that contain Valve-Regulated Lead-Acid (VRLA), Lithium-Ion, or Lithium Metal Polymer batteries, the signs required by 52.3.8.1 shall state the following:

This room contains:

  1. Stationary storage battery systems
  2. Energized electrical circuits
For rooms that contain Flooded Lead-Acid or Flooded Nickel-Cadmium (Ni-Cd) batteries, the signs required by 52.3.8.1 shall state the following:

This room contains:

  1. Stationary storage battery systems
  2. Energized electrical circuits
  3. Corrosive battery electrolyte
Battery cabinets shall be provided with exterior labels that identify the manufacturer and model number of the system and electrical rating (voltage and current) of the contained battery system.
Signs shall be provided within battery cabinets to indicate the relevant electrical, chemical, and fire hazard.
In seismically active areas, battery systems shall be seismically braced in accordance with the building code.
An approved automatic smoke detection system shall be installed in such areas and supervised by an approved central, proprietary, or remote station service or a local alarm that will give an audible signal at a constantly attended location.
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