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农用电网,通常采用低压架空线路,主要原因是:导线散热条件较好、绝缘要求不高、造价低、故障易发现、便于检修。但是其主要缺点是:需要支固设施、投资大、占用土地、妨碍交通、影响耕作、施工检修须进行空中作业,大风大雨或严寒冰雪易倒杆断线,杯线质量差易发生触电伤亡,此外线路裸露,偷电漏电及盗失事件也难以防止。为了寻求农用电网架设的新途径,三桥镇从有利耕作、节省土地、实现园田化出发,自1973年开始,在该镇孙围墙村进行农用地埋电网试验,敷设地埋线8公里(采用
Agricultural power grids, usually using low-voltage overhead lines, the main reasons are: better heat dissipation wire, insulation requirements are not high, low cost, easy to find fault, easy maintenance. However, the main shortcomings are: the need for supporting facilities, large investment, occupation of land, obstruction of traffic, affecting tillage, overhauling of aerial work during construction and maintenance, windy rain or severe snow and ice easy-break bar breakage, In addition exposed lines, stolen electricity leakage and stolen incidents are also difficult to prevent. In order to find a new way for erecting agricultural power grids, Sanqiao Town, starting from favorable tillage, land saving and realizing Yuanyuanhua, started the pilot test of agricultural land-buried power grids in Suncunqiang Village of the town from 1973 and laid the embankment for 8km