Electric fence kept insulated from the earth and from any materials that will conduct electricity and ignite or short out the fence. Fencing must therefore avoid vegetation, and cannot be attached directly to wood or metal posts. Typically, wooden or metal posts are driven into the ground and plastic or porcelain insulators are attached to them, or plastic posts are used. The conducting material is then attached to the posts. Electrified palisade fences are usually made from painted mild steel, galvanized steel, stainless steel or aluminium. Typically the fences are . The palisade fence is mechanically stronger than a typical steel cable
Type 9 wooden anti-tank mine Type 9 wooden anti-tank mine The Type 9 wooden anti-tank mine was an Italian bar type anti-tank mine used during World War II in North Africa. The box consisted of a lower section, containing the large warhead and fuzes and an upper, overlapping lid with two pivoting wooden covers that sat over the two fuzes. The fuzes were designed as a pivoting lever, and downward motion of the lid caused the lever to pull back a striker, compressing a striker spring until the pivoting action moved the lever enough to release the striker. The striker then impacted a blank cartridge,