Lightning Protection Systems

The radius of protection (Rp) of a LIVA is given by the French standard NF C 17-102 of Seo 2011. It depends on the initiation advance (ΔT) of the LIVA, which is measured in a high voltage laboratory. The protection levels I, II, III & IV are calculated according to the lightning risk assessment guide (Appendix-B of the French standard NF C 17-102) and the height (h) of the lightning conductor over the area to be protected (minimum height = 2m).

Rp = Radius of protection in a horizontal plane located at a vertical distance h from the LIVA tip.

h = Height of the LIVA tip above the surface(s) to be protected.

D = Standardized striking distance.

ΔL = Initiation advance.

Rp = √{h(2D - h) + ΔL(2D + ΔL)} for h ≥ 5

ΔT = initiation advance measured during efficiency test according to Appendix-C of the French standard NF C 17-102.

Selection of Micro Sense liva lighting Pole/mast/towe

NOTE: Based on environmental conditions and applications mast materials and types shall be selected. Consult lightning protection design consultant / supplier for recommendation.

Selection of standard recommended down conductor

According to N FC 17-102 standard recommendation, minimum 50sqmm crossection area is require for a conductor to be used as a lightning downconductor. For special purpose low impedance down conductor can be used as - lightning downconductor to eliminate lightning induction effect to near by power cable or conducting metals/structures. The lightning downconductor shall be physically contact to the structure to avoide unnecessary transient flash over.

Complete autonomy with proven efficiency

During a storm the ambient electric field may rise to between 10 to 20 kV/m. As soon as the field exceeds a thresold representing the minimum risk of a lightning strike, the LIVA lightning terminal is activated. It draw its energy from the ambient electric field the energy required to generate high voltage pulses, creating and propagating an upward leader. No other power sources are required, and no radioactive components are used.
LIVA has proven commitment to research and development and continuously sets new benchmarks for the efficiency of lightning conductors.

Selection of Lightning strike counter for recording

Lightning strike counter is desiged to count and record the lightning strikes captured by lightning protection system such as active lightning rod, frankiin rod and faraday cage. The lightning counter is necessary to determine whether the lightning rod recieved any lightning strikes. The record will be display through a 6 digit mechanical display unit. It is enclosed inside IP67 eclosure, so can be install for outdoor application. It works on the principle of induction when a lightning current discharge to ground through down conductor. The device does not need any maintenance within it operation limit. It does not require any additional power supply for its operation.