This part of the IEC 62485 applies to stationary secondary batteries and battery installations with a maximum voltage of DC 1 500 V (nominal). It describes the principal measures for protections against hazards generated from electricity, gas emission, and electrolyte. This International Standard provides requirements on safety aspects associated with the erection, use, inspection, maintenance and disposal. It covers lead-acid and NiCd / NiMH batteries. Examples for the main applications are telecommunications, power station operation, central emergency lighting and alarm systems, uninterruptible power supplies, stationary engine starting, photovoltaic systems.