H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/149
H01H 85/18 (2006.01) H01H 85/02 (2006.01) H01H 85/165 (2006.01)
Patent
CA 1098941
ENERGY LIMITING OIL IMMERSIBLE FUSE Abstract An oil immersible current limiting full range fuse including a tubular housing, end caps hermetically sealed to each end of the housing and supporting a full range fuse assembly within said housing, the housing being filled with a granular arc extinguishing filler, the hermetic seal provided between the housing and the end caps is formed by a resilient gasket mounted at each end of the housing and epoxy adhesive provided in the end caps, the adhesive being displaced by the gasket on insertion into the space between the end cap and the outer wall of the housing. A method for testing the hermetic seals for leaks which includes the steps of injecting sulfur hexafluoride into the housing, sealing the housing, confining the fuse in a closed space for a predetermined period of time and testing the atmosphere of the confined space to determine the presence of sulfur hexaflouride. The full range fuse assembly is provided with a pair of contacts at each end which are electrically connected to the end caps by induction heating after assembly. The tin element assembly of the full range fuse assembly is provided with a reinforcing glass roving sleeve.
304738
Rte Corporation
Smart & Biggar
LandOfFree
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