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当前位置:改善其护套断开处电场分布的方法有几种
改善其护套断开处电场分布的方法有几种
[来源:http://www.dianlanguagou.com.cn] [作者:不详] [日期:17-02-14] [浏览次数:]
在35kv及以下电力电缆接头中,改善其护套断开处电场分布的方法有几种(请列出五种),并简述其方法。 In 35 kv and below power cable joint, improve its sheath disconnect place there are several ways of distribution of electric field (please list five), and its method is outlined. 答:(1)胀喇叭口:在铅包割断处把铅包边缘撬起,成喇叭状,其边缘应光滑、圆整、对称。 Answer: (1) expanding bell: cut the lead package wrapped lead edge pry up, trumpet-shaped, its edges should be smooth, rounded, symmetry. (2)预留统包绝缘:在铅包切口至电缆芯线分开点之间留有一段统包绝缘纸。 (2) reserve a turn-key insulation: incision to separate cable core point between the lead package with a sense of insulating paper. (3)切除半导电纸:将半导电纸切除到喇叭口以下。 (3) removal of semi conductive paper: semi conductive paper amputated below bell mouth. (4)包绕应力锥:用绝缘包带和导电金属材料包成锥形,人为地将屏蔽层扩大,以改善电场分布。 (4) surrounding the stress cone: with insulation tape and conductive metal material package into cone, artificially expanded the shielding layer, to improve the electric field distribution. (5)等电位法:对于干包型或交联聚乙烯电缆头,在各线芯概况绝缘表面上包一段金属带,并将其连接在一起。 (5), and other potential method: for dry type package or crosslinking polyethylene cable head, on the profile surface insulation wire core package a metal band, and connect it together. (6)装设应力控制管:对于35kv及发下热缩管电缆头,首先从线芯铜屏蔽层末端方向经半导体带至线芯绝缘概况包绕2层半导体带,然后将相应规格折应力管,套在铜屏蔽的末端处,热缩成形。 (6) furnish the stress control tube: for hair heat shrinkable tube under 35 kv cable head, first of all, from the end of the wire core copper shield direction through semiconductor to wire core insulation situation surrounding the 2 layers of semiconductor band, then the corresponding specification folding stress pipe, set at the end of the copper shield, hot forming.
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