IEC 62305-1:2024
Collections
International IEC standards
Publication date
September 2024
Number of pages
153 p.
Reference
IEC 62305-1:2024
IEC 62305-1:2024
September 2024
International standard
Current
Protection against lightning - Part 1: General principles
IEC 62305-1:2024 provides general principles for the protection of structures against lightning, including their installations and contents, as well as persons.The following cases are outside the scope of this document:- railway systems;- vehicles, ships, aircraft, offshore installations;- underground high-pressure pipelines;- pipe, power and telecommunication lines separated from the structure;- nuclear power plants.This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:a) reference to the IEC 62561 series is made in Annex D to provide a link to relevant lightning protection system components according to the IEC 62561 series;b) risk management introduces the concept of types of loss with public relevance;c) the concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced;d) surge currents due to lightning flashes have been more accurately specified for SPD dimensioning in low-voltage power systems and in telecommunication systems.
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Sumary
Protection against lightning - Part 1: General principles
IEC 62305-1:2024 provides general principles for the protection of structures against lightning, including their installations and contents, as well as persons.
The following cases are outside the scope of this document:
- railway systems;
- vehicles, ships, aircraft, offshore installations;
- underground high-pressure pipelines;
- pipe, power and telecommunication lines separated from the structure;
- nuclear power plants.
This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) reference to the IEC 62561 series is made in Annex D to provide a link to relevant lightning protection system components according to the IEC 62561 series;
b) risk management introduces the concept of types of loss with public relevance;
c) the concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced;
d) surge currents due to lightning flashes have been more accurately specified for SPD dimensioning in low-voltage power systems and in telecommunication systems.
IEC 62305-1:2024 provides general principles for the protection of structures against lightning, including their installations and contents, as well as persons.
The following cases are outside the scope of this document:
- railway systems;
- vehicles, ships, aircraft, offshore installations;
- underground high-pressure pipelines;
- pipe, power and telecommunication lines separated from the structure;
- nuclear power plants.
This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) reference to the IEC 62561 series is made in Annex D to provide a link to relevant lightning protection system components according to the IEC 62561 series;
b) risk management introduces the concept of types of loss with public relevance;
c) the concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced;
d) surge currents due to lightning flashes have been more accurately specified for SPD dimensioning in low-voltage power systems and in telecommunication systems.
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Replaced standards
(1)
IEC 62305-1:2010
December 2010
International standard
Cancelled
Protection against lightning - Part 1: General principles
IEC 62305-1:2010 provides general principles to be followed for protection of structures against lightning, including their installations and contents, as well as persons. 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) It no longer covers protection of services connected to structures. 2) Isolated interfaces are introduced as protection measures to reduce failure of electric and electronic systems. 3) First negative impulse current is introduced as a new lightning parameter for calculation purposes. 4) Expected surge overcurrents due to lightning flashes have been more accurately specified for low voltage power systems and for telecommunication systems. This bilingual version (2013-01) corresponds to the monolingual English version, published in 2010-12.
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