2010年8月1日 · Lightning protection standards specify three procedures that can be used to implement lightning protection system of grounded structures. According to the IEC standards [1], they are the Rolling sphere method, the mesh method and the protection angle method.

2020年8月18日 · The mesh method is one of the three routes for lightning protection system design defined by IEC 62305, the international standard for lightning protection design.

The protective area provided by the mesh method is the area bounded by the mesh. The protection to areas adjacent to the mesh (e.g. building sides and lower structural points) is determined by the protection angle method or rolling sphere method (see Fig.15).

2020年8月28日 · The four classes of LPS I, II, III and IV are determined using a set of construction rules including dimensioning requirements which are based on the relevant lightning protection level. Each set comprises class-dependent (e.g. radius of the rolling sphere, mesh size) and class-independent (e.g. cross-sections, materials) requirements.

Lightning Protection System as per IS/IEC 62305 consists of both external and internal lightning protection systems. The external LPS is intended to intercept direct lightning flashes to the structure and conduct the lightning current from the point of strike to the ground.

2023年5月2日 · The Lightning Protection System (LPS) is a passive lightning protection, ensuring that lightning strikes hitting the blade are transferred to the grounding. The systems are tested in accordance to the IEC 61400-24 standard. Dependent on the test tier the system is designed to handle 100-200kA, without significant system wear.

PERI's LPS climbing enclosure protection system with lightweight mesh elements. Rail-guided climbing ensures a safe and fast-moving procedure.

Positioning / Placement of Air Termination System Components. The Class of LPS/LPL influences on the (3) Positioning Methods. The Mesh Method. For lightning flashes to earth, a downward leader grows step-by-step in a series of jerks from the cloud towards the earth.

2024年8月10日 · Mesh Size: According to IEC 62305, mesh conductor size is based on the selected class of LPS and that is totally dependable on user requirements. In the Mesh method, a conducting mesh with a cell size determined by the minimum return stroke current that is allowed to strike the protected structure.

In this paper, meshes of different sizes as stipulated in the lightning protection standards were tested for their ability to intercept lightning flashes using a lightning attachment model that takes into account the physics of connecting leaders on.