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A new lightning shielding failure evaluation method based on the electro-geometric method aided by 3D graphics technology is introduced. The approach is based on the collection surface method. Shielding devices and protected equipment are equally considered as targets of lightning strikes when generating collection surfaces. The collection surfaces are then projected to a 2D bitmap, identified by...
A new lightning shielding failure evaluation method based on an electro-geometric method aided by 3D graphics technology is introduced. The approach is based on the method of collection surfaces. By using the collection surface of protected equipment instead of the unprotected area, empty areas where no equipment is to be protected are eliminated from contributing to the failure rate. Shielding devices...
This article shows how a lighting shielding study of a large plant can be completed based on limited available data, such as 3D screen shots, plan view drawings and elevations of the tallest structures. The shielding study was carried out using a highly efficient 3-D graphics-based lightning interception surface rendering method [4], based on the Electro-geometric Model (EGM) defined in IEC 62305...
The two EGM based direct lightning shielding methods presented in IEEE Standard 998 are the rolling sphere method and the revised EGM Method. The application of the rolling sphere method described in the IEEE Standard is using 2D drawings to simulate the 3D space environment and is limited to using the same strike distance for all objects in the system. The SBSHLD program based on the revised EGM...
Modern computer 3D graphic technologies are applied to the solution of lightning protection analysis and design problems using the Rolling Sphere Method. It is shown that the use of such techniques can greatly accelerate the computer solution of lightning protection problems.
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