On August 19th, the State Grid Transportation Inspection Department sent a message. The State Grid Corporation established a working group consisting of the Ministry of Transportation Inspection, Infrastructure, Safety Supervision, National Control Center and China Electric Power Research Institute to accelerate overhead transmission lines. The promotion and application of parallel gap technology.
It is reported that the Working Group will focus around the following areas: Optimization of Parallel Gap technical parameters, specifications Parallel Gap specifications, perfect parallel gap Technical Guidelines, a clear gap in parallel with the principle of selection, installation and use of acceptance criteria; for parallel mounting clearance line of lightning trip reasonable rate index, rationalization mounted parallel transmission line fault clearance required by lightning strikes, effectively reducing the workload of the fault line inspection; applications increases and the number of units in parallel gap pilot line, the pilot will be gradually extended to the range provinces company 500 kV voltage level and all of the following transmission lines; conscientiously sum on the basis of operating experience on the gradual pilot line applications infrastructure projects, and strive to achieve a parallel gap in the company's technology infrastructure and to promote comprehensive renovation project; strengthening the transmission line parallel gap refining technology research and application of the results of the pilot, summary and publicity to promote the installation of a parallel gap continued to work effectively, to achieve substantial results.
Parallel Gap Lightning protection technology with a parallel gap sides of the insulator string means, then flash of lightning, grooming frequency arc, the arc burns avoid the insulator, help to improve the synthesized power line weight, reduce operation and maintenance work, in Europe, Japan and other countries and regions, are widely used. In recent years, with the continuous strengthening of the power grid structure, large-scale use of SF6 switchgear and microcomputer protection devices, the company has already established the conditions for the application of parallel gap technology. Since 2010, the State Grid Transportation Inspection Department has organized the Chinese Academy of Electric Power to conduct research on the application of parallel gap technology for 110 kV to 500 kV line insulators, and has a total of 2,540 km of 118 units in the State Grid Beijing, Yubei, and Zhejiang Electric Power. The pilot application of parallel gap technology has been carried out on the 35 kV to 500 kV line, which has effectively reduced the lightning failure rate, protects the insulator, and reduces the workload of fault inspection.We have been in the Lithium Battery industry for many years and always adhere to the full capacity of the product.Sufficient quantity is not false standard,ensure the power stability of lithium battery ,stable endurance. Our 3.2v 50ah LiFePo4 Battery battery have high diacharge, low battery resistance, stable discharge, longer life cycle. We have higher temperature resistance, higher power discharge.
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