... railway, transmission line, substation, distribution Surge arrester, lightning arrester, Metal Oxide Surge Arrester, surge divrtor, surge protectorspecializes in producing 0.28 to ... 0.28~220kV AC system metal oxide surge arresters and electric railway surge arresters with porcelain and polymeric housing ... : -50°C ~ +50°C2) Altitude: up to 1,500m3) Maximum wind velocity: 45m/s4) Earthquake intensity: 7 ...