Iyini i-insulation material?1.Impahla yokushisisa into engawuhambisi ugesi ngaphansi kwe-voltage evumelekile, kodwa okungeyona into engawuhambisi nhlobo ugesi.Esigabeni esithile sikagesi sangaphandle,i-conductivity, i-polarization, ukulahleka, ukuwohloka nokunye...
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