First of all, we have to be clear: the composite insulator
with high pressure equalizing ring bar suspension insulator, main purpose is to protect the surface of composite insulator does not burn, use galvanized iron equalizing ring compared with the past, it has light weight, equalizing effect is good, strong corrosion resistance, install and use the advantages of more convenient.
When using insulator equalizing ring, then, we must pay attention to the following items: 1, composite insulator equalizing ring and galvanized iron equalizing ring diameter is roughly same, installation direction is the same.
2, 66 kv and below voltage grade of composite insulator don't need to be equipped with equalizing ring 3, 110 kv voltage class of composite insulator can not equipped with equalizing ring, can also according to the requirement of the user in the high pressure side install an equalizing ring 4, 220 kv voltage class of composite insulator in the high pressure side install an equalizing ring, or according to the requirement of the user in the upper and lower ends are equipped with pressure ring
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