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产品概述
避雷器在正常运行电压下呈高阻状态,一旦雷电或操作过电压到来便迅速导通入地,把本会加在变压器或开关设备绝缘上的过电压限制下来。它是变电站里最便宜的设备之一,却决定了最贵的那台能不能扛过一场雷暴。
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