| 摘要 |
An arming device is interposed in the electrical circuit between the electrical switch at a control site and a remote explosive. The arming device is physically located near the explosive and is connected by a fluid pressure line to a pressure source at the control site. Until such time as the arming device is activated, the danger of premature detonation of the explosive from current induced in the conductor between the explosive and the switch is eliminated, and the fluid-pressure controlled arming device is not susceptible to such induced current. Both piston and diaphragm-type arming devices are disclosed.
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