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变电站、配电室、3000千瓦发电机和高压输送电线,大都是采用多芯铝线。这种多芯铝线同线鼻的联结,过去一直是采用压接、卡接和绑扎的方法。不仅生产成本高、而且接头处容易发热,尤其是线路负载较重的接头更容易发热,使导电性能变差。为此我们每年要定期停电进行修理,对烧损严重的接头还要更换新的。为了解决上述问题,我们决定改进多芯铝线同铝线鼻的焊接方法。我们从1974年起对3000千瓦发电机、
Substation, power distribution room, 3000 kilowatts generators and high-voltage transmission lines, mostly using multi-core aluminum. This multi-core aluminum wire with the nose connection, the past has been the use of crimping, clamping and binding method. Not only the production cost is high, but also the joint is easy to generate heat, especially the connector with heavy line load is more likely to generate heat and the conductivity is worsened. To this end, we have regular blackouts for repairs every year, and severely damaged joints have to be replaced. In order to solve the above problems, we decided to improve the multi-core aluminum wire with aluminum nose welding method. We started from 1974 on the 3000-kilowatt generator,