With high quality and detected by Ministry of Electric Power. it is inspected by power industry bureau complied with IEC

  Quality assurance:ISO9001:2000

Type	Rating Voltage (KV)	Trigger Voltage (KV)	Virtual Insulating Length(mm)	Power Frequency Withstand Voltage in 5min
GSSB-I	10	≤2.5	≥1100	44
GSSB-I	35	≤8.5	≥1500	95
GSSB-I	110	≤25.2	≥2000	260
GSSB-I	220	≤55	≥2500	440

Electroscope