What should be paid attention to when reviewing the operation scheme of overhead rope?

The following is the related contents of what should be paid attention to when reviewing the overhead rope operation scheme brought by Zhongda Consulting for your reference.

Environmental inspection on the construction site of overhead rope hanging operation:

1. Check the roof to make sure that there are firm structures or objects that can fix the rope, and check whether neon lights, billboards and other erection objects hinder the operation;

2. Check the installation position of the external wall supervisor for obstacles such as high-voltage lines, user security nets and awnings. If you can't clear obstacles or change the direction of the riser to avoid obstacles. When the high-voltage wires cannot be isolated, no work shall be carried out;

3. Selection of meteorological conditions for construction

The external wall riser construction must be carried out under good meteorological conditions, and the wind power should be less than Grade 4, and the work should be stopped above Grade 4. In addition, bad conditions such as rain, fog, poor visibility at night or in poor light, and high temperature (above 35℃) are not suitable for aerial work.

4. Personnel allocation and materials mobilization

The construction personnel for aerial suspension work must hold relevant certificates and make safety technical disclosure before taking up their posts. During the construction process, the materials used shall be organized to enter the site according to the construction progress plan, and stacked in a fixed position.

5. Selection of lifting appliances

Lifting appliances for external wall work must be intact. Before each aerial work, the spreader must be inspected first. If the hanging rope (including working rope, safety rope and lifting rope), seat plate, safety belt, U-ring and self-locking device are found to be broken and broken, they should be replaced immediately. Commonly used hoisting tools for aerial suspension include:

(1) working rope (main rope): nylon rope, preferably silk rope, with a high cost performance, a diameter of 2mm, a working tension of 1.2t and an ultimate tension of 4.8t, which is used to hang the sitting board where the operator sits at work;

(2) safety rope (auxiliary rope): the nylon rope used on site is 2mm in diameter, and if 16mm is selected, the working tension is .93t, and the ultimate tension is 3.7t, which is the safety belt for operators to hang and work;

(3) Lifting rope: 16mm nylon rope should be used, with the use tension of .75t and the ultimate tension of 3t, and the pulley should be used to lift U-PVC and PE pipes and accessories;

(4) Self-locking device and U-ring: steel appliances, which are used together with seat belts and seat plates;

(5) safety belt: it is mainly composed of noose, hook, belt, shoulder strap and shoulder strap.

(6) Wall-penetrating tools and equipment: tools such as tooth opener, cutting machine (knife) and electric hammer (expander) are needed in use. Carry out safety inspection before use, and use it according to the operating procedures.

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