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A tripwire is a passive triggering mechanism. Typically, a wire or cord is attached to a device for detecting or reacting to physical movement. Military applications
An anti-tank mine with an anti-handling device fitted is almost guaranteed to detonate if it is lifted/overturned, because it is specifically designed to do so. Munitions fitted with anti-handling devices increase the difficulty and cost of post-conflict clearing operations, due to the inherent dangers of attempting to render them safe.
One end of the bracket has a point allowing it to be driven into the ground, while the other end has a spring loaded spoon holder that allows for two way release. The soldier installing the flare can use this feature to set up the tension so that if the trip wire is detected and cut the flare still ignites.
The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.
A tripwire force (sometimes called a glass plate) is a strategic approach in deterrence theory. The tripwire force is a military force smaller than that of a potential adversary, which is designed to signal the defending side's commitment to an armed response to future aggression without triggering a security spiral .
(fragmentation-barrier mine, in the Russian and other post-Soviet armies as informally called "frog mine" or "witch" ) They are normally painted olive green, and issued with a spool of tripwires and two green painted wooden or metal stakes for affixing the tripwires.
M86 Pursuit Deterrent Munition: tripwire triggered bounding mine that automatically deploys its own tripwires. It is intended to be dropped by special forces when evading a pursuing enemy. Post-War, Russian anti-personnel mines. PFM-1 (butterfly mine, NATO: Blue Parrot), modern. POMZ: tripwire triggered, stake-mine.
A safety wire is used to ensure proper security for a fastener. The wire needed is long enough to reach from a fixed location to a hole in the removable fastener, such as a pin — a clevis fastener, sometimes a linchpin or hitch-pin through a clevis yoke for instance — and the wire pulled back upon itself, parallel to its other end, then twisted, a single end inserted through a fastener ...