Lightning terminals
The purpose of using lightning protection for buildings is to protect them against the effects of atmospheric discharges. Danger can arise from direct discharge, electrostatic induction, overvoltages and discharges from other objects (such as overhead lines, tall trees, etc.). Lightning protection protects building occupants as well as electrical installations and devices connected to the network. Such a lightning protection system consists of, among others: from air terminals that accept electrical discharges, discharge and grounding wires, as well as from lightning terminals and earth electrodes. Using the air-termination system, the lightning current is conducted safely to the ground and then dissipated by the earthing system. The installation should be installed in accordance with the requirements and recommendations included in the Lightning Protection Standards. In this category there are lightning terminals. The lightning terminal is a screw connection of the down conductor with the earth conductor (with possible disconnection). Its purpose is to enable the measurement of earthing resistance or checking the continuity of connections of the overground part. Lightning clamps vary depending on the size, material from which they are made, as well as how they are mounted and where they are attached. Lightning terminals should meet European standards (PN-EN) and be made of aluminum, copper or stainless steel, which in turn should be galvanized or copper-plated.