Widely used in three-phase power system of voltage 10kv, 1---100Hz overhead power line in common or foul areas as insulation and support. It consists of insulation and steel pin. The Ceramic of the insulator is white or brown.
According to different application sites, the pin insulator is classified with three categories: Common type, Reforced Insulation I (medium foul area), Reforced Insulation II (heavily foul area)
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