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

   

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