EN IEC 62793:2020

IEC 62793:2020(E) describes the characteristics of thunderstorm warning systems (TWSs) in order to implement lightning hazard preventive measures.Single sensors and/or a network of sensors (e.g. lightning location system) can be used as a TWS.This second edition cancels and replaces the first edition, published in 2016. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:- portable devices are no longer covered by this standard;- in Clause 5, classes of TWS have been deleted;- in Clause 6, updated figures and more detailed text are provided to better illustrate the alarm timeline;- in Clause 9, the text has been summarized and refers now to the application guide given in Annex F;- annexes have been reorganized;- Annex E is normative.