Our company specializes in producing 0.28~220kV AC system metal oxide surge arresters and electric railway surge arresters with porcelain and polymeric housing for protection against over-voltage damage, meanwhile we are producing surge arresters used for special condition and area.
1) Ambient temperature: -50C~ +50C
2) Altitude: Up to 1, 500m
3) Maximum wind velocity: 45m/s
4) Earthquake intensity: 7 degrees, 0.3g
5) Note: Any severer condition, please specify
Standard applied: IEC60099-4
Type test report: Issued by KEMA or CNAL member
Polymer coat with casting.