How to replace the straight rod insulators

(1) method of operation. This job key in how to transfer the load of wire and wire tension, while the insulator string does not bear the load, you can replace insulators, generally use the following three methods: ① replace with a rope or pulley block; ② with double hook tight line or palm gourd (chain hoists) replacement; ③ replace the card with a bottle exchange monolithic insulators.

(2) personnel organization. 1 person responsible person, workers on the tower 2, ground personnel 2 of 5 people.

(3) tools and material preparation. Chain hoists 1 (block and tackle, hook tight line device), a pulley, a tailless ropes, wire rope protection 1, two sets of rope, enough insulators.

(4) operating methods and procedures:

1) on the rod carrying the desired person on the tool bar, the pulley, wire sets, and fixed to the cross arm, install wire rope on the protection of tailless ropes suspended;

2) on the tower 1 along the insulator string under the wire, ground staff will pass on chain hoists, tower on the two complement each other to hang the wire jacket, and the hoist and wire connections.

3) on the lower end of the wire spring pin insulators demolition personnel, began to tighten gourd;

4) staff on hand swing wire insulator strings, so that the entire string insulator from power, then open the single insulator Bowl Head hanging point spring pins;

5) rod insulator strings tied the old staff, new ground Electrical insulator strings are tied, then the ground hard electrician rope, pole insulator strings and old will head the ball hanging from the ring, pull the old insulator strings, so old and new insulators, under transfer;

6) wire, cross arm personnel with each other, hang the insulator, when the opposite order of the demolition, and installed spring pins;

7) on the tower personnel loose hanging chain, so that the force of insulator strings and remove all tools and instruments, passed with a rope, put to the next shot;

8) on the tower to inspect the electrical part of any foreign body, after confirmation the next shot;

9) responsible person overall check on the construction site, others clean up of industrial equipment, materials, and correct after all, the end of the work.

(5) security measures and precautions:

1) strict implementation of the first power line work ticket system;

2) all staff must wear a helmet;

3) bar staff to wear seatbelts, and have a back-up protection of justice;

4) When the insulator string and wire from the wire rope must be secondary protection;

5) the desired field of industrial equipment, materials to be qualified, may not be a small generation of large;

6) new and old insulator string, the next pass, to avoid colliding with each other.

(6) processes and quality requirements:

1) to comply with the new-for-insulator operational requirements, and wipe clean;

2) After replacing insulators sized, cotter pins, spring bombs interspersed direction should be consistent with the original person, cotter pins must break apart.