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There was a recent lightning incident where fifty people were hurt while standing on wet soil at the moment of a nearby lightning strike that caused an electrical current to flow through the ground.
Moreover, when lightning damage such as fusing of cable pairs or holes in the sheath does occur, it is not so easy to locate and repair as on aerial cables since excavations may have to be made at ...
Lightning protection systems use large copper cables that are installed high in the tree, down the trunk and into a trench in the ground that leads away from the tree where the cable is connected ...
So, if lightning is inevitable, why invest in those air terminals, conductor cables, and ground rods? ... which is one of the primary reasons the NEC requires all low-voltage cabling to be located a ...
Lightning protection systems use large copper cables that are installed high in the tree, down the trunk and into a trench in the ground that leads away from the tree where the cable is connected ...
PART 3: Case Study. This project is in Fenghua, China. According to statistics, the area’s annual average lightning days of more than 75 define it as lightning-prone.
A lightning protection system ... to a grounding rod system to dissipate the energy in the earth. Because metal is a better conductor than tree tissue the lightning will follow the copper cable.
A lightning protection system (LPS) according to Lightning Protection Level (LPL) III as per SANS 62305-3 (IEC & EN62305-3) is at least required for these types of structures.
Okay, I've found out from PolyPhaser that the lightning arrestors on the network referred to in this thread I posted recently were *not* installed correctly. The current setup has the towers ...
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