Technical FAQs 4

Do vented lead acid batteries need a separate battery room?

Vented lead acid batteries installed in medium voltage main substation buildings and unit substations, electrical equipment rooms and control system rack rooms shall not require a separate, dedicated battery room and shall be in accordance with SES E14-S02. The battery room and installation shall comply with IEEE 484, NFPA 70 and OSHA 29 CFR.

Do lead-acid batteries release hydrogen gas?

It is common knowledge that lead-acid batteries release hydrogen gas that can be potentially explosive. The battery rooms must be adequately ventilated to prohibit the build-up of hydrogen gas. During normal operations, off gassing of the batteries is relatively small.

What are the requirements for a lead-acid battery ventilation system?

The ventilation system must prevent the accumulation of hydrogen pockets greater than 1% concentration. Flooded lead-acid batteries must be provided with a dedicated ventilation system that exhausts outdoors and prevents circulation of air in other parts of the building.

How far should lead acid batteries be stored?

ould be a minimum of 3 m between the storage of lead acid batteries or battery acid and any offices, retail stores, warehouses or other shop . However, this distance may be reduced given that the stores/shops/warehouse play an integral part in the management of stor

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Lead-acid battery cabinet requirements

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