IEC 62305-2:2010 

Protection against lightning - Part 2: Risk management

CHF 

Do you need a multi-user copy?

CHF 

Preview

Abstract

IEC 62305-2:2010 is applicable to risk assessment for a structure due to lightning flashes to earth. Its purpose is to provide a procedure for the evaluation of such a risk. Once an upper tolerable limit for the risk has been selected, this procedure allows the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
1) Risk assessment for services connected to structures is excluded from the scope.
2) Injuries of living beings caused by electric shock inside the structure are considered.
3) Tolerable risk of loss of cultural heritage is lowered from 10-3 to 10-4. The value of tolerable risk of loss of economic value (RT = 10-3) is introduced, to be used when data for cost/benefit analysis are not available.
4) Extended damage to surroundings structures or to the environment is considered.
5) Improved equations are provided for evaluation of
- collection areas relevant to flashes nearby a structure,
- collection areas relevant to flashes to and nearby a line,
- probabilities that a flash can cause damage,
- loss factors even in structures with risk of explosion,
- risk relevant to a zone of a structure,
- cost of loss.
6) Tables are provided to select the relative amount of loss in all cases.
7) Impulse withstand voltage level of equipments was extended down to 1 kV.
This bilingual version corresponds to the monolingual English version, published in 2010-12.

Look inside

Relevant for

rural electrification


Additional information

Publication typeInternational Standard
Publication date2010-12-09
Edition2.0
Available language(s)English, English/French, Spanish
TC/SCTC 81 - Lightning protectionrss
ICS29.020 - Electrical engineering in general
91.120.40 - Lightning protection
Stability date  2018
Pages171
File size2371 KB

Related publications

Share this page


Share your publications

Learn how to share your publications with your colleagues, using networking options.

Payment information

Our prices are in Swiss francs (CHF). The following credit cards are accepted: American express, Mastercard and Visa. Request a pro forma to pay by bank transfer.


Keep in touch

Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.

Contact customer services

Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.