Electric armour or electromagnetic armour is a type of reactive armour proposed for the protection of ships and armoured fighting vehicles from shaped charge and possibly kinetic weapons using a strong electric current, complementing or replacing conventional explosive reacting armour (ERA). Overview Electric armour is a newer reactive armour technology. This armour is made up of two or more conductive plates separated by an air gap or by an insulating material, creating a high-power capacitor. In operation, a high-voltage power source charges the armour. When an incoming body penetrates the plates, it closes the circuit to discharge the capacitor, dumping a great deal of energy into the penetrator, vaporizing it or even turning it into a plasma, significantly diffusing the attack. Another version of electric armour uses layers of plates of electromagnetic metal with silicone spacers on alternate sides. The damage to the exterior of the armour passes electricity into the plates causing them to magnetically move together. As the process is completed at the speed of electricity the plates are moving when struck by the projectile causing the projectile energy to be deflected whilst the energy is also dissipated in parting the magnetically attracted plates. Advantages Weight A key advantage of electric armour is its lighter weight. Whereas ERA (explosive reacting armour) can add 10 to 20 tons of weight to a tank in explosives, electric armour could be effective with as little as a few tons of weight, significantly reducing the load on the tank and allowing its weight capacity and engine power to be used elsewhere. In addition, electric armour could be mounted on other armoured vehicles such as infantry fighting vehicles and armoured personnel carriers which had sacrificed the protection of heavy armour and ERA for mobility and lightness, thus improving the survivability of troops onboard. Coverage The light weight of electric armour also means that the benefits of its protection can be spread over the whole vehicle. Due to the weight of plating, conventional armour has to be uneven in its coverage, with tanks' thickest armour placed at the most exposed front, the sides less protected, and the top and rear often highly vulnerable in comparison. This fact can be exploited by an agile enemy capable of outflanking their opponents or ambushes such as those common in the asymmetric warfare of modern insurgency. Top attack weapons such as the US FGM-148 Javelin exploit this as