The protective earth wire is mainly to reduce the strong electromagnetic interference generated by the breakdown of the sample.
接保护地线，主要是减少试样击穿时对周围产生的较强的电磁干扰。
It is provided with easily replaceable wire support members or protective caps to enhance convertibility from a single phase delivery configuration to a three phase delivery configuration.
设置有容易替换的电线支承件或保护帽，以提高从一单相传输结构到一三相传输结构的可变换性。
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