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    • 14. 发明授权
    • Electrical joint compound
    • 电接头复合
    • US4312793A
    • 1982-01-26
    • US126179
    • 1980-03-03
    • Mitchell D. CharneskiJames K. KelleyFrank J. Gazdecki
    • Mitchell D. CharneskiJames K. KelleyFrank J. Gazdecki
    • H01R3/08H01R4/18H01R4/24H01R4/62H01B1/02
    • H01R3/08H01R4/18H01R4/24H01R4/62
    • The present invention relates to an electrical joint compound for use in tubular compression connectors generally of aluminum or copper, and is particularly useful for joining large, stranded or solid, underground, electrical power cable and terminations of cable in high-voltage potheads. The electrical joint compound is a thermosetting hardenable resin system such for example as epoxy or polyester, which contains sufficient fine metal particles to make the resin semi-conducting and also contains coarse metal particles of irregular shape which because of their size and shape break through any oxide surface such as occurs particularly on aluminum conductors during compression, and allow a metal-to-metal contact to be made between connector and conductor strands and between contiguous conductor strands. The combination of the coarse and the fine particles in a hard, semi-conducting resin provide a synergistic effect which gives a stable, low resistance, compression connector joint not heretofore available. The present invention makes it possible to join aluminum power cable to aluminum or copper power cable in sizes as large as 3 million circular mil with compression connectors.
    • 本发明涉及一种用于通常为铝或铜的管状压缩连接器的电接头化合物,并且特别适用于连接大型,绞合或固体,地下电力电缆和电缆端接在高压罐头中。 电接头化合物是例如环氧树脂或聚酯的热固性可硬化树脂体系,其包含足够的金属微粒以使树脂半导电并且还含有粗糙的不规则形状的金属颗粒,这是因为它们的尺寸和形状破裂于任何 氧化物表面,例如在压缩期间特别发生在铝导体上,并且允许在连接器和导体股线之间以及连续的导体股线之间形成金属 - 金属接触。 粗,半导体树脂中的粗颗粒和细颗粒的组合提供了协同效应,其提供了迄今为止可用的稳定的低电阻压缩连接器接头。 本发明使得铝电力电缆可以连接到具有压缩连接器的大小为300万圆形密耳的铝或铜电力电缆。