公开(公告)号：US4212047A

公开(公告)日：1980-07-08

申请号：US719077

申请日：1976-08-31

Applicant: John Napiorkowski

Inventor： John Napiorkowski

IPC: H01T1/14 ,  H02H3/22

CPC classification number: H01T1/14

Abstract: Disclosed herein are surge arrester configurations employing non-metallic and preferably plastic fusible elements which normally insulate biased short circuiting members from shorting the surge arrester but which, in the event of certain forms of excessive overloads, fuse to thereby permit the shorting elements to short circuit the arrester gap. In addition, the embodiments include integral backup air gaps to provide additional backup protection covering certain gas tube failure modes. In the illustrated embodiments, the shorting elements each take the form of a conductive clip with one set of spring fingers in electrical contact with the line (end) electrode and another set urged in the direction of the ground electrode but separated therefrom by an annular plastic fusible sleeve coaxially coupled to the center body housing. Fusion of the sleeve in the presence of a sustained overload causes it to yield, thereby permitting the respective spring fingers to move into contact with the ground electrode, causing a short circuit.

Abstract translation: 本文公开了采用非金属和优选塑料可熔元件的避雷器配置，其通常绝缘偏置短路元件以避免避雷器短路，但是在某些形式的过载过载的情况下，熔断器可以使短路元件短路 避雷器的差距。 此外，这些实施例包括一体式后备气隙，以提供覆盖某些气体管道故障模式的附加备用保护。 在所示的实施例中，短路元件各自采用导电夹子的形式，导电夹具具有与线（端）电极电接触的一组弹簧指，并且另一组在接地电极的方向上被推动，但是通过环形塑料 可熔套管同轴联接到中心体外壳。 在存在持续过载的情况下套筒的融合使其屈服，从而允许相应的弹簧指移动以与接地电极接触，导致短路。