METHOD OF PREVENTING BREAK IN INSULATED WIRE AND INSTANTANEOUS POWER FAILURE

摘要

Method certainly generating creeping discharge without causing puncture is applied on basis of researching creeping discharge characteristic of insulated wire. The present invention is preventing method of insulated wire breaking and momentary interruption in which overhead distribution system including insulated wire 1 is provided with insulated wire for field relaxation 7 having twice such a predetermined length that creeping flashover is occurred by lightening surge from supported point of said insulated wire 1 by insulator 3 but is not followed by AC follow current, and said insulated wire for field relaxation 7 is disposed in parallel to said insulated wire 1, supported its central portion by said insulator 3, connected both ends 8 of conductor of said insulated wire for field relaxation 7 to conductor of said insulated wire 1 and covered their connected portion with insulating cover 9.