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Application of zinc ring at the iron cap open and zinc sleeve on the steel foot can improve the anti-corrosion property.
铁帽口采用锌环和钢脚采用锌套,以提高抗腐蚀性能;
While DC power transmission requires high anti-fouling property for insulators and causes serious corrosion to their metal attachments (iron cap and steel foot).
但直流输电对绝缘子的防污秽性能要求高,对其金属附件(铁帽和钢脚)腐蚀厉害。
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