Introduction to the IEC 62858: lightning density based on Lightning Locating Systems
The lightning data collected by Lightning Locating Systems (LLS) operating in the Low Frequency (LF) range is of great interest to compute the lightning density (Ng) in a given area of interest for the lightning protection community.The effectiveness of the recommendations for lightning protection derived from the lightning risk analysis are sensitive to the reliability of the Ng parameter used in the models.To guarantee the reliability and homogeneity of this input data, the IEC 62858 requires on one hand a minimum level of performance for an LLS and on another hand recommends a computational method for the Ng aiming at guaranteeing a maximum error on the Ng less than 20%.This document reviews the main points required by the IEC 62858 standard before introducing the different lightning data types collected by an LLS.More particularly, a focus is made on a new lightning data dealing with branched flashes that can identify and locate all the Ground Strike Points (GSP) in a branched flash and therefore better address the real threat on the ground.
Lightning Locating Systems (LLS) Lightning Density (Ng/Nsg) Ground Strike Point data IEC 62858
Stéphane Pédeboy
Vice President of Technology Météorage Pau, France
国际会议
4th International Lightning Protection Symposium (ILPS2018第四届雷电防护国际研讨会)
深圳
英文
55-59
2018-10-24(万方平台首次上网日期,不代表论文的发表时间)