ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Climatic Characteristics Analysis and the Disaster Defense of Wire Icing in Jinhua City in the Recent 56 Years
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Abstract:
Based on the daily observation data of rain rime and fog rime in Jinhu a during 1953-2008, characters of wire icing, such as the variatio n in the age, year, season, month, and the beginning and ending time, the durati on, the largest diameter were analyzed. At the same time, the analyses of the fo rmation conditions and characters of the disaster of wire icing in Jinhua were carried out. Th e results showed that the average day of wire icing in Jinhua was 0.8 d each year , which concentrated in winter. The maximum appeared in January, followed by Febr uary, and the minimum appeared in December. Wire icing can occur at any time in one day. The first date of the appearance of wire icing was on December 10, and the latest date was on February 19. The longest duration was 64 h, and the largest diameter was 16 mm. The formation conditions of rain rime and fog rime were different. The disaster of rain rime was worse than the fog rime when thelargest diameter of them was the same. And the ice disaster in electric power was more serious in high mountains than in hills or basins. Finally, specific measures a bout the defense of the disaster were put forward based on the analysis of chara cteristics of wire icing.
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