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1000 kV Jinan transformer power cable realizes fully mechanized construction
百方网 http://smccoach.com 2015-12-16 10:39:01
[ Electrical and Electrical Network] News

On December 13, as the instructions were issued, the motorized honing mill stopped traction, and the first “3x120 + 1x70” power cable from the 500 kV relay cell to the high-impact zone power box was laid. Traction opened the prelude to the fully mechanized construction of power cables at Jinan Station.

Jinan 1000 kV substation is designed with 192 power cables, with a total length of 35,237 meters, and the longest one reaches more than 600 meters. Due to the thick cables and large quality, long laying distance, up to 7 corners during the period, complicated routes, and difficult construction, the project department carefully planned the laying plan and proposed a “mechanical traction” instead of “manual laying” construction plan based on the actual site. .

The project department has deployed 150 pulleys and 7 sets of corner pulleys to realize the laying of the whole process without human traction. The motorized grinder used is connected to the power cable by using a special sleeve, which is strong and sturdy without damaging the outer sheath of the cable. It uses uniform speed traction, and a special person is responsible for checking the status of the pulley and the laying progress at intervals. After the speed test and stability test, it meets the site construction requirements.

The application of mechanized construction has improved work efficiency and reduced the laying work that originally required more than 50 people to about 10 people, greatly reducing labor and saving labor costs. At the same time, the mechanized laying of cables is fast and efficient. As long as the laying route is planned, there will be no pauses in the middle, and the laying can be completed continuously and efficiently. It only takes more than 1 hour to complete the laying of a cable. Laying requires more than 3 hours, saving time costs. The laying unit is used as a means of transport for laying, which eliminates the cable dragging and scratching during manual laying, which greatly improves the quality of the finished product and helps achieve the goal of first-time construction.

At present, the project department has fully entered the winter construction state. While the management staff controls the progress of the site, all working surfaces and professions also firmly control the safety and quality. Through the distribution of winter construction equipment and safety protection supplies, the establishment of safety signs and warning signs, and the organization of winter construction education and training, Focus on safe production and ensure that all work is carried out safely and orderly at the end of the year.

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