| 摘要 |
PCT No. PCT/FR80/00178 Sec. 371 Date Aug. 4, 1981 Sec. 102(e) Date Aug. 4, 1981 PCT Filed Dec. 10, 1980 PCT Pub. No. WO81/01770 PCT Pub. Date Jun. 25, 1981.A pyrotechnical cartridge or motor (5) is actuated by electric firing from its head (5c), and pushes the insulating piston (3) which separates by shearing the intermediate connecting portion (1b) of the destructible conductor (1) and pushes it into the bore (1e) together with the rod (9), the conical end (9a) of which becomes wedged within the plug (10) so as to form a brake. The fuse cartridges (13) then open the circuit in a fully safe manner. The present invention is useful for instance under the control of overcurrent detectors.
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