⑴ Tel switch
⑵ electrical equipment, medical equipment and instrumentation
⑶ computer uninterruptible power
(4) power transmission stations, switch control and emergency lighting
⑸ fire protection, security and alarm monitoring
⑹ communications standby power
⑺ substation switching control, office automation systems
(8) solar energy, wind energy systems the
⑼ the start, marine, generator, generator
⑽ radio communication system
⑾ the the electric car
⑿ portable appliances and mining system
⒀ traffic and beacon signal light
⒁ power plants, hydropower station DC power supply
⒂ railway DC power supply
⒃ mobile station, emergency lighting