This part of the IEC 62485 applies to stationary secondary batteries and battery installations with a maximum voltage of DC 1 500 V (nominal) and describes the principal measures for protections against hazards generated from: – electricity, – gas emission, – 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.