Title :
Analysis of the accident based on low temperature, snowstorm, ice, coagulation
Author_Institution :
Shanghai Power, Shanghai, China
Abstract :
When the diameter of ice covering lines is over 40-60 mm (Hunan) or even 300 mm (Guizhou), much bigger than the standard line parameter of 15-30 mm, it will lead to the collapse of towers of 220 KV/500 KV transmission systems. The paper summarizes the accidence occurred in China at the beginning of 2008 and presents optimal design philosophy for the transmission line of EHV/UHV.
Keywords :
coagulation; electrical accidents; ice; poles and towers; power transmission lines; snow; China; EHV-UHV transmission line; accident analysis; coagulation; ice covering line; size 15 mm to 30 mm; size 300 mm; size 40 mm to 60 mm; snowstorm; transmission towers; voltage 220 kV; voltage 500 kV; Accidents; Coagulation; Ice; Poles and towers; Power grids; Power transmission lines; Rain; Snow; Substations; Temperature; collapse of transmission Tower; super-value design; the coagulation of storm; the security of power grid; transmission lines; vibration wave;
Conference_Titel :
Electricity Distribution, 2008. CICED 2008. China International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-3373-5
Electronic_ISBN :
978-1-4244-3372-8
DOI :
10.1109/CICED.2008.5211824
