⑴ power
⑵ electrical equipment, medical equipment and instrumentation
⑶ computer uninterruptible power supply emergency lighting
⑷ power transmission station, switch control and emergency lighting systems
⑸ fire, security and alarm monitoring
⑹ communication with standby power
⑺ substation switch with DC power supply rail
⑻ solar energy, wind energy systems
⑼ office automation system
⑽ radio communication system
⑾ emergency lighting
⑿ portable electrical and mining
⒀ traffic and beacon lights
⒁ power plants, hydropower DC
⒂ railway DC power supply
⒃ power tools, telephone exchange