Cov khoom lag luam tseem ceeb: 220kV thiab qis voltage Zinc oxide surge ntes, cais tawm mus, tso tawm fuse, hluav taws xob hloov chaw tos tsheb loj-bar lub raj, tso lub zog, Cable sheath voltage txwv (lub thawv), phab ntsa bushing, 110kV thiab qis voltage prefabrication, Tag nrho cov khaub thuas txias los yog cov khoom siv hluav taws xob kub shrinkable cable, 500kV thiab qis voltage hluav taws xob rwb thaiv tsev thiab lwm yam ntau yam khoom siv hluav taws xob.