Cable bending method

Abstract

The invention discloses a cable bending method. A cable bending radius controller is utilized, a needed corresponding scale value, on a supporting rod, of a pulling rope on the cable bending radius controller is selected according to the minimum bending radius needed by a cable needing bending, then one end of the pulling rope is connected to a pulling ring at the scale value, the other end of the pulling rope is connected to the end of a bendable rod when it is ensured that the length between the pulling ring, located at the scale value of the supporting rod, of the pulling rope and the bendable rod is the same as the length between the pulling ring at the corresponding scale value of the supporting rod and the bendable rod, then the radian of the bendable rod is compared with the radian of the bent cable, and whether the bent cable reaches the minimum standard requirement or not can be clearly seen. Therefore, the cable is insulated and not damaged, the service life of the cable is prolonged, safe and stable operation of a power grid is improved, and the construction investment of the power grid is also reduced.

Description

[0001] technical field [0002] The invention relates to a cable bending device, in particular to a cable bending radius controller and a cable bending method. [0003] Background technique [0004] With the continuous deepening of urban cableization, the number of power grid cables in various regions is increasing day by day, and the cable occupies a dominant position in the power grid. The safety of its operation will directly affect the safe and stable operation of the power grid. Therefore, it is urgent to improve the quality of cable engineering. The focus of future project construction. The cable bending radius is an important index to ensure the insulation performance of the cable laying construction and operation. If the bending radius of the cable is less than the specified value during the laying construction or operation, it will directly lead to the destruction of its structure, directly affect its life, and eventually lead to insulation breakdown...

AI Technical Summary

Problems solved by technology

The cable bending radius is an important index to ensure the insulation performance of the cable laying construction and operation. If the bending radius of the cable is less than the specified value during the laying construction or operation, it will directly lead to the destruction of its structure, directly affect its life, and eventually lead to insulation breakdown. , leading to safety and quality accidents, affecting the safe and stable operation of the power grid

[0005] 1. Due to urban planning and historical reasons, the size of cable wells in many places is generally small. How to reasonably arrange the position of cables and control the minimum bending radius of cables is a major problem in engineering construction.

[0006] 2. Due to various factors, the construction of cable projects is now undertaken by the cooperative team. Due to the low professional quality of the cooperative team members and driven by economic interests, etc., the construction of the project is often only about the progress, not about the quality, which leads to Many potential safety and quality hazards, such as: random placement of cables, hard extrusion of cables into the work well, resulting in the bending radius of the cables reserved for the work well cannot meet the requirements, etc.

Cable bending radius is an important indicator to ensure its insulation performance. Too small bending radius will damage its internal structure and directly affect its life. In severe cases, it will directly lead to insulation breakdown and lead to safety and quality accidents.

[0008] 4. The traditional method of measuring the minimum bending radius of cables is to use visual inspection or a tape measure, etc. This method brings large errors, which is easy to cause misjudgment and misjudgment, is not scientific, and is not practical in the process of engineering construction

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