To intercept all lightning strikes entering a building
The purpose of a Lightning Protection System (LPS) is to intercept all lightning strikes to a building, redirect them to the ground, and distribute them evenly across the ground. In order to prevent dangerous flashovers and lightning-caused fires, all metallic installations in the building must be made at equal potential. An LPS is regarded as the most effective measure for protecting the structure and its contents against physical damage or degradation. The goal is to prevent thermal, mechanical, and electrical effects that can cause damage to the protected structure or to humans via touch or step voltages within
the structure.
Main protection measures against injury to living beings due to touch and step voltages are intended to:Reduce the dangerous current flowing through the body by insulating the exposed conductive parts or by forming an equipotentilisation
Reduce the occurrence of dangerous touch and step voltages by physical restrictions and/or warning notices LPS comprises of External LPS and Internal LPS
Lightning protection system designers use the “rolling sphere method for lightning protection” to help determine where air terminals or strike termination devices are required on the roof or other parts of a building. The method assumes that the electrically-charged field ahead of a bolt of lightning that is capable of causing damage is a distance of approximately 150 ft. To simulate how lightning will interact with a structure, the designer visualizes a sphere with a 150 ft. radius rolling over the surface of the building. Any place the sphere touches the building is a location where lightning can strike. By placing air terminals at regular intervals in these locations, the lightning strike is intercepted by the lightning protection system so that the electrical charges can flow safely to the ground
Lightning current and surge arrester with an integrated backup fuse capable of carrying lightning currents for use in 230 / 400 V systems; FM version with floating remote signalling contact.Enjoy this short introduction to the DEHNventil Type 1 Surge Protection Device (SPD) from DEHN & Söhne and Extreme Safety. The DEHNventil is perfect for primary protection from direct lightning strikes from Lightning Protection Zones 0 - 1. The DEHNventil is one of the only SPD's on the market capable of absorbing 10/350 waveshapes (direct lightning strikes) and is fully coordinated with all other DEHN SPD's. DEHN & Söhne products are distributed in Australia by Extreme Safety.