Polymer lightning arrester (surge arrester),1.9~220kV AC system metal oxide type for protection against overr-voltage damage Polymer lightning arrester (surge arrester) Product DescriptionOur company specializes in supplying ... /30,HY5WS-17/50,HY5WZ-5/13.5,HY5WZ-10/27,NHY5WZ-17/45,HY5WZ-51/34, HY5WZ-51/130,HY5W ... /281,HY10W-200/520,HY5WR-5/13.5, Y5WR-10/27, HY5WR-17/45,HY5WR-51/134,HY10WR-51/134,HY5WD ...