Zinc-oxide MOV surge arrester is the most advanced over-voltage protector at present in the world. The voltage current characteristic of the varistor has been changed compared with traditional carborundum arresters due to the multiple metal oxide material
Equipment Class 1.Class A: Have the basic ability of evacuation training function from one side on land. 2.Class B: Have the basic ability of evacuation training function from two sides on land. 3.Class C: Have the basic ability of evacuation training fun