What are the popular methods for Lightning protection systems ?

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Question ajoutée par Mohammed Safwat Oliemy , Electrical Site Engineer , SIEMENS
Date de publication: 2015/10/10

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par Rushdy Ahamed , Senior Electrical Engineer , SSH

1. Mesh

2. Rolling Sphere

3. Protective Cone

LPL1-4 based on calculated risk.

par Markwilliams Ndubuisi , Electrical Technician , Power Holding plc

Conventional Franklin rods, Meshed method conductors, Faraday cage method, Early streamer emission type air terminals

par KASSEM JOUNI , Electrical engineer consulting , SV Properties Co.

Mesh for high less than 20 meters

Rolling sphere for high more than 20 meters

par Erdie Cabantac , SUPERVISOR , SILVER COAST CONSTRUCTION &BORING EST.

Mesh is the common method what we are using for lightning protection

par Farhan Ahmad , Senior Electrical Engineer in EHV Engineering & Design Department , Saudi Electric Company, Dammam [National Grid, SA]

Normally, rolling sphere method is commonly used among these methods.

As per NFPA 780 how would you calculate no of down conductor required for a building lightning protection?
Top Answer: Ref- NFPA 780 : the spacing between down conductors should be 30 mtr for roof perimeter exceeding 76 mtr, ... Voir Plus

Réponses (5)
How can you design the length of mast for lightning protection?
Top Answer: Height of LM depends on Height of Equipment/Bus to be protected & distance from LM. IEEE gave u clear ... Voir Plus

Réponses (1)
Why we need to provide Lighting rods for lightning protection?
Top Answer: A rod is the simplest and cheapest me ... Voir Plus

Réponses (2)
Why do we use dedicated earth pits for lightning protection? Why can't we connect the down conductor to earth pit used for earthing?
Top Answer: NEC/NFPA 780 & NEC 70 do not restrict to provide separate Pits for Lightning Protection AND Equipment ... Voir Plus

Réponses (4)

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