Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state

Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state

  • CN 104,113,006 A
  • Filed: 04/22/2013
  • Published: 10/22/2014
  • Est. Priority Date: 04/22/2013
  • Status: Active Application
First Claim
Patent Images

1. a 35kV overhead distribution replacing linear pole under live state angle cross arm operational method, it is characterized in that:

  • adopt intermediate potential method, utilize aerial lift device with insulated arm and coordinate enforcement operation by operation electrician in operation director, ground electrician and insulation bucket, comprise the following steps;

    1. the director that works confirms that operation field meets operating condition requirement, to the inactive reclosing of power scheduling application, is confirmed post command and starts operation;

    Work director commands aerial lift device with insulated arm to enter after solution space, puts down supporting leg, the vehicle ground of aerial lift device with insulated arm and does empty bucket test;

    2. use megohmmeter along face, to carry out respectively insulation property detection to the insulating material part in operating apparatus, insulation clothing in safety protective tools, insulated target;

    if insulation resistance is greater than 700 megaohms for qualified, otherwise to be changed;

    3. insulation clothing, insulation boots, insulating gloves and the insulation safety cap that the interior operation electrician wearing of insulation bucket meets the requirement of 35kV line live-line work enters the insulation bucket of aerial lift device with insulated arm;

    In insulation bucket, electrician operates aerial lift device with insulated arm insulation bucket is put to apart from 20cm place, ground, the little arm of installing insulating check trailer system under ground electrician cooperation;

    And under coordinating, ground electrician packs required wire mask, insulator cover, insulated target, cross arm shielding cover and the insulating cord of operation into the bucket that insulate;

    4. the interior operation electrician of bucket of insulating operates aerial lift device with insulated arm makes insulation bucket progress into setting electric field, and according to the principle of first electrified body, rear earth electrode and order from the near to the remote, from top to bottom, adopt wire mask, insulator cover, insulated target, cross arm shielding cover respectively wire, insulator, cross-arm to be insulated and covered;

    5. the interior operation electrician installing insulating cross-arm in appropriate location below angle cross arm to be replaced of bucket insulate;

    In bucket, operation electrician obtains work director and permits the insulate suspension hook of little arm of rear operation to hook wire and make it slightly stressed, then take limit phase conductor insulated target apart and expose wiring, wiring is removed, movable conducting wire, to insulator crossarm wire casing, is closed insurance and is insulated and covered in wire and insulator crossarm wire casing place;

    Adjust insulation bucket position to opposite side wire, complete the transfer of opposite side wire and insulation masking work;

    The insulation of 6. removing on cross-arm to be replaced is covered, and unclamps cross-arm fixture to be replaced, pulls down cross-arm to be replaced and reaches ground with the little arm of insulation;

    7. with the little arm of insulation, new angle cross arm is hung on and fix in the former angle cross arm of electric pole position, the appended porcelain pole arm of new angle cross arm is fixed on new angle cross arm, and with insulated target, porcelain bottle cover, cross-arm cover, carry out to insulate and cover;

    8. in insulation bucket, operation electrician enters a side operation lead location, dismounting insulator crossarm and the insulation of wire casing place are covered, open the insurance of insulator crossarm wire casing, utilize the little arm suspension hook of insulation that wire is sling, put into the appended porcelain pole arm wire casing of the angle cross arm of having changed, recovery wiring fixedly Ji bearing recovery insulation covers;

    Adjust insulation bucket position to opposite side wire, complete opposite side wire and recover fixing;

    9. remove insulator crossarm;

    10. in insulation bucket operation electrician by with step 4. the described orderly release insulation of covering reversed in order cover;

    (11) in insulation bucket, operation electrician operates aerial lift device with insulated arm and withdraws from electric field, returns to ground;

    (12) after the director that works inspects for acceptance, to power scheduling, report, work complete, application recovers this circuit re-switching.

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