Lightning protection zone

Lightning protection Lightning protection zone is a concept developed to protect... 

A lightning protection zone (LPZ) is a concept developed to protect equipment from lightning, especially meant for hazardous and potentially explosive areas. When... 

During design, the hazardous area and lightning protection zone shall be properly harmonized. 

Fig. 6 shows a simplified version of the lightning protection zone model. The reactor building is protected against direct lightning strike by an external system with air terminal rods and horizontal conductors, down leads and a equipotential bonding ring type. This equipment passes lightning strikes down into the earth. In conjunction with the external... 

The building receives a zone of protection from a lightning strike in the shape of a cone, starting at the highest point of the air terminal of the lightning protective system as shown in Fig. 13.7. 

The threat of a direct lightning strike to the technician has been minimized by establishing a protective zone over the areas to be traversed. This zone is created by the tower and air terminals mounted atop light poles. 

FIGURE 2-7. Ligntning Rod Protection. A lightning rod provides a cone of protection for a ll structures within the cone. When a rod is more than 50 feet high, the protected zone is defined by an... 

LPZOb Zone protected against direct lightning flashes but where the threat is the full lightning electromagnetic field. The internal systems may be subjected to partial lightning surge currents. External zone side wall structure. 

Regulation 524-04-0l(iv) requires the Kghtning protection system to be bonded to the main earthing terminal to prevent potential differences occurring within the equipotential zone in the event of a lightning surge or strike. 

---