Battery rooms should be designed with an adequate exhaust system, which provides for continuous ventilation of the battery room to prohibit the build up of potentially explosive hydrogen gas. During normal operations, off gassing of the batteries is relatively small.
Battery acid and lead compounds and the risk of explosion due to the build up of explosive gasses should be discussed. The hazards with nickel cadmium batteries, which contain highly corrosive potassium hydroxide and give off hydrogen, should be discussed. No persons should be allowed to enter a battery room without the correct clothing.
Battery room layouts should be clean and designed to maximize space usage. Proper code clearances must be maintained in and around battery strings for required maintenance support and life safety systems. Egress aisles, exit ways, and maintenance aisles also must be maintained.
Periodic inspections should be made of the grounding system to assure that continuity is maintained. Battery rooms should be equipped with a centralized Emergency Power Off (EPO) system that can disconnect power in the room from the UPS common battery buss or individual UPS module(s) being supported by this room.
An objective to shoot for would be 50 to 60 foot-candles at the maintenance task level. In many cases, supplemental portable lighting systems will be used to achieve adequate light levels in all areas of the battery room.
This article does not cover maintenance free or computer room type batteries and battery cabinets in its Battery Room Design Requirements. The main keywords for this article are vented lead acid batteries, battery room safety requirements, Battery Room Ventilation, and unit substations electrical. Batteries can be hazardous to both personnel and equipment.
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For optimal battery performance, battery room HVAC systems should be designed to maintain a uniform average ambient room temperature of 77° F. Battery room temperatures below 77° F increase battery life but degrade
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