Mechanical Laying Method of Large Section Aerial Cable
An overhead cable and cable laying technology, applied in the direction of overhead lines/cable equipment, cable laying equipment, etc., can solve the problems of low efficiency, laborious lifting, and difficulty in ensuring the quality of cable laying and construction safety, so as to avoid dangerous factors and reduce accidents. effect of risk
Active Publication Date: 2015-08-19
中铝国际南方工程有限公司
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Problems solved by technology
Since the distance between the overhead cable and the steel strand is very small after being fixed, when the cable is hoisted after being laid out on the ground, in order to realize the cable clamp or hook to fix the cable, the distance between the cable and the steel strand after lifting should be minimized, and the lifting rope cannot use pulleys , can only directly rub against the steel strands, there are lifting labor, great wear and tear of the ropes, and potential safety hazards due to impact loads and broken ropes during lifting, resulting in low efficiency, high cost, and high cable laying technology for large-section, high-quality cables. Defects such as quality and construction safety are not easy to guarantee
Method used
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Embodiment Construction
[0028] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0029] like figure 1 As shown, before laying the cable, install the cable pulley 2 for guiding at each corner of the line, and lay out the non-twisted braided traction wire rope 9 along the laying line; use the operating rod to install and penetrate the non-twist The gravity self-locking cable suspension tackle 5 of the twisted braided traction wire rope 9, the guide cable tackle 2 of the non-twisted braided traction wire rope 9 is installed as required near the cable laying terminal point Z. At the end point Z of the laying line, use structures or install ground anchors 11 to fix the tractor 10, and at the starting point S of the laying line, set up the cable reel 1; install the cable puller on the end of the large-section cable 3 to be laid Or the cable net 7, the traction head or the cable net 7 is connected with the untwisted braided traction wire rope 9 th...
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The invention relates to a cable laying method, in particular to a mechanical laying method for a large-section overhead cable. A dragging machine is used as dragging power; and in a process of laying the cable, a cable pulley can convey the cable at high altitude under the assistance of a gravity self-locking type cable hanging pulley. By the mechanical laying method for the large-section and large-mass overhead cable, the large-section and large-mass overhead cable can be laid in place at high altitude in a mechanical dragging manner at one time, so that the aims of improving the cable laying construction efficiency, reducing the engineering and construction cost, improving the engineering quality and reducing the safety risk are fulfilled.
Description
technical field [0001] The invention relates to a cable laying method, in particular to a mechanical laying method of a large-section overhead cable. Background technique [0002] At present, the construction of overhead cable laying projects adopts manual traction. For cables with small diameter and quality such as small-section power cables, small-sized communication cables, and optical cables, suspension-type cable pulleys are usually used for manual traction and laying, and ladders or high-altitude chairs are used. In the air, use cable clips and cable hooks to fix on the steel strands. When the cross-section and mass of the cable laid overhead are large, the sag of the steel strand load will become larger during the laying process, and the suspended cable block will slip and concentrate at the low point, making the laying impossible. Therefore, at present, for large cross-sections and large When the quality cables are laid overhead, they are all pulled by artificial gr...
Claims
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IPC IPC(8): H02G1/02H02G1/06
Inventor 姜朴李运涛夏庆王明根
Owner 中铝国际南方工程有限公司