A yumbu sassa a dakin da zazzabi ne mai insulator, saboda high resistivity don haka za a iya amfani da insulating kayan aiki, tare da high narkewa batu, high tafasar batu halaye, sa up for karfe kayan a high zafin jiki sauki iskar shaka, sauki lalata da rauni.Kuma saboda kayan samfurin ba shi da magnetic, ba ya sha ƙura, farfajiyar ba ta da sauƙi a fadi.