The combination of earthing systems and surge protection creates an equipotential earth platform which will eliminate any differences under transient conditions. The lightning strike must be confined to a designed air termination system, which will conduct the energy to the ground via the down conductors installed. The energy will then be dispersed into the ground via the earthing system. The earth potential differences will be removed by bonding the various earths together. All electrical equipment and telephone / data lines must be protected from surges from all incoming lines.
ALP now supplies and installs HVI ® – Power High Voltage Resistant Conductor for all classes of Lightning Protection Systems (LPS)
Lightning protection performed on thatch roofs requires the installation of a free standing mast. We install galavanised masts, the height and design is determined by numerous factors such as proximity of other structures, the building structure, and location. The combustible properties of thatch grass in areas where there is high lighting density poses fire hazards. The aim of the lightning mast is that a preferential point of discharge is provided for the lighting to strike. Note that by installing a mast or external lightning protection on any building will not be sufficient to prevent damage to equipment inside the building as the electromagnetic effects and induction will still cause damage to equipment within the building. In fact, if you install external lightning protection, you will actually require lightning current arresters and surge arresters. A lightning strike up to 1km away can cause damage to sensitive electrical and electronic equipment.