Quick hot-line by-pass jumper overlapping operation method for 10kV insulated power distribution line

Quick hot-line by-pass jumper overlapping operation method for 10kV insulated power distribution line

  • CN 103,746,315 A
  • Filed: 12/30/2013
  • Published: 04/23/2014
  • Est. Priority Date: 12/30/2013
  • Status: Active Application
First Claim
Patent Images

1. 10kV distribution insulated circuit fast live line overlaps a drainage thread operational method, it is characterized in that:

  • adopt earth potential working method, mainly comprise the following steps;

    1. the application reclosing of stopping using;

    step on and review and validate that to wait to take logical circuit zero load and without phase fault and earth fault before bar operation, Bing Xiang power scheduling department application this circuit re-switching of stopping using, is confirmed operation electrician in rear bar and starts to step on bar operation;

    2. doing insulation isolation;

    adopt on the bar of earth potential working electrician on bar to the T shape insulated conductor cover isolation of insulating for the phase conductor of both sides, and may cause the equipment of short circuit or ground connection to do insulation quarantine measures to drainage thread swing in job area;

    Then use megohmmeter measurement to wait to take that each of logical circuit is alternate and whether insulation against ground is normal, determine that to wait to take logical circuit zero load and without phase fault and earth fault;

    3. overlap joint is prepared;

    on bar, electrician measures three-phase wire length with insulating bar, arrange, intercept lead-in wire, divest drainage thread overhang insulation layer to be overlapped and non-bearing connecting clip bottom is arranged on to drainage thread end, then mounted drainage thread end is hung on corresponding wire with insulation lock hanging bar;

    4. divest middle phase conductor insulating barrier;

    on bar, electrician hangs up treating overlapping part and fixing of insulated conductor to be overlapped with insulating bar by charged insulating wire stripper head, pulls insulating bar to divest wire insulation;

    5. phase joining seam in overlap joint;

    on bar, operation electrician delivers to middle phase conductor with the Assembly rail that insulate by earth potential working non-bearing connecting clip and hangs up properly, while hanging up, be swift in motion, then rotating insulated Assembly rail, thereby earth potential working non-bearing connecting clip is fixedly suspended on the bus of circuit, and mobile T shape insulated conductor cover recovers lap-joint'"'"'s insulation isolation;

    6. overlap two limit phase joints;

    on bar operation electrician adopt as step 4. with step 5. identical method overlap first side phase joining seam and Second Edge phase joining seam;

    7. remove insulation quarantine measures;

    on bar, operation electrician removes rear lower beam by the insulation isolation facility on bar and returns to ground, recovers this circuit re-switching.

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