Technical Data Content Value Shell breakdown voltage > 25KV/Min Shell Grading Protection IP 23 Current Tolerance Test 10 times rating current 1s Insulation dielectric strength The frequent exchanges 3000V 1min No breakdown Network Insulation Resistance R>10 MΩ Pollution grading parameters General electric dust and dewiness state Working Voltage DC: 1000VAC:600V Fire danger test Good flame retardant properties Collectors Speed V 200m/ min