Amendment 1 - Assessment of the risk of damage due to lightning

Amendement 1 - Evaluation des risques de dommages liés à la foudre

Assesment of the risk of damages due to the lightning - Amendment 1

General Information

Status: Replaced
Publication Date: 29-May-1996

ICS: 91.120.40 - Lightning protection

Technical Committee: TC 81 - Lightning protection
Drafting Committee: MT 9 - TC 81/MT 9

Current Stage: DELPUB - Deleted Publication
Start Date: 17-Jan-2006
Completion Date: 13-Feb-2026

Ref Project: SIST IEC/TR 61662:1998/A1:1998 - Amendment No. 1

Relations

Replaced By: IEC 62305-2:2006 - Protection against lightning - Part 2: Risk management
Effective Date: 05-Sep-2023

Amends: IEC TS 61662:1995 - Assessment of the risk of damage due to lightning
Effective Date: 05-Sep-2023

IEC/TR 61662:1998/A1:1998 - Page 3 preview

IEC/TR 61662:1998/A1:1998 - Page 1 preview

IEC/TR 61662:1998/A1:1998 - Page 2 preview

Amendment

IEC/TR 61662:1998/A1:1998

English language

7 pages

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Frequently Asked Questions

What is IEC TS 61662:1995/AMD1:1996?

IEC TS 61662:1995/AMD1:1996 is a amendment published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Assessment of the risk of damage due to lightning". This standard covers: Amendment 1 - Assessment of the risk of damage due to lightning

What is the scope of IEC TS 61662:1995/AMD1:1996?

Amendment 1 - Assessment of the risk of damage due to lightning

What ICS categories does IEC TS 61662:1995/AMD1:1996 belong to?

IEC TS 61662:1995/AMD1:1996 is classified under the following ICS (International Classification for Standards) categories: 91.120.40 - Lightning protection. The ICS classification helps identify the subject area and facilitates finding related standards.

What standards are related to IEC TS 61662:1995/AMD1:1996?

IEC TS 61662:1995/AMD1:1996 has the following relationships with other standards: It is inter standard links to IEC 62305-2:2006, IEC TS 61662:1995. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

How can I access IEC TS 61662:1995/AMD1:1996?

IEC TS 61662:1995/AMD1:1996 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

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IEC

IEC 62561-2:2025(Main)

Lightning protection system components (LPSC) - Part 2: Requirements for conductors and earth electrodes

IEC 62561-2:2025 specifies the requirements and tests for
- metallic conductors (other than "natural" conductors) that form part of the air-termination and down-conductor systems, and
- metallic earth electrodes that form part of the earth-termination system.
This third edition cancels and replaces the second edition published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) definitions of new conductor types mentioned in this document have been added;
b) the document has been updated in line with IEC 60068-2-52:2017 on salt mist treatment;
c) the document has been updated in line with ISO 22479:2019 on humid sulphurous atmosphere treatment;
d) a new normative Annex H for material, configuration and cross-sectional area test has been introduced;
e) a new normative Annex I for applicability of previous tests has been introduced.
f) equipotential earth grid has been introduced.

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IEC

IEC 62305-2:2024/COR1:2024(Corrigendum)

Corrigendum 1 - Protection against lightning - Part 2: Risk management

IEC 62305-2:2024 is applicable to the risk management of 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 provides a means for the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit.
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) The concept of a single risk, to combine loss of human life and loss due to fire, has been introduced.
b) The concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced.
c) The lightning ground strike-point density NSG has been introduced replacing the lightning flash density NG in the evaluation of expected average annual number of dangerous events.
d) Reduction of a few risk components can be achieved by the use of preventive temporary measures activated by means of a thunderstorm warning system (TWS) compliant with IEC 62793. The risk of direct strike to people in open areas has been introduced, considering the reduction of that risk using a TWS.

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IEC 62305-1:2024(Main)

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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IEC 62305-3:2024(Main)

Protection against lightning - Part 3: Physical damage to structures and life hazard

SIST IEC/TR 60943:2000

IEC 62305-3:2024 provides the requirements for protection of a structure against physical damage by means of a lightning protection system (LPS), and for protection against injury to human beings due to touch and step voltages in the vicinity of an LPS (see IEC 62305-1).
This document is applicable to the:
a) design, installation, inspection and maintenance of an LPS for structures without limitation of their height,
b) establishment of measures for protection against injury to human beings primarily due to touch and step voltages.
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) Minimum thicknesses of metal sheets or metal pipes are given in Table 4 for air-termination systems where it is necessary to prevent hot-spot problems. Maximum temperature rises ΔT (K) and time duration t50 (s) for different thicknesses and long strokes are also given.
b) Cross-reference to the IEC 62561 series is made for the use of reliable, stable, safe and appropriate LPS components.
c) The application of two methods – general and simplified – for separation distance calculation is clarified.
d) Some changes to the requirements for continuity of steel reinforcement are made.
e) Annex C is revised to address comments from IEC subcommittee 31J.
f) Revision of positioning of air-termination conductors are modified according to the three accepted methods. A more precise description of the methods for positioning of the air-termination systems are made according to the complexity of structures to be protected. The main text has been simplified, Annex A has been deleted and all detailed information has been moved to Annex D.
g) Information on the protection of green roofs is introduced in Annex D.
h) Information on the protection of protruding parts on facades of tall buildings is introduced in Annex D.
i) a new definition of “electrically insulated LPS” has been introduced to distinguish it from an LPS both electrically and physically isolated from the structure, with a slight modification of the other LPS definitions.

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IEC

IEC 62305-2:2024(Main)

Protection against lightning - Part 2: Risk management

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IEC 62305-4:2024(Main)

Protection against lightning - Part 4: Electrical and electronic systems within structures

IEC 62305-4:2024 provides requirements for the design, installation, inspection, maintenance, and testing of surge protection measures (SPM) for electrical and electronic systems to reduce the risk of permanent failures due to lightning electromagnetic impulse (LEMP) within a structure.
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) addition of new informative Annex E and Annex F on the determination of current sharing using modelling and current sharing in PV installations respectively;
b) addition of a new informative Annex G on methods of testing of system level behaviour;
c) addition of a new informative Annex H on induced voltages in SPD-protected installations.

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IEC 62561-7:2024(Main)

Lightning protection system components (LPSC) - Part 7: Requirements for earthing enhancing compounds

IEC 62561-7:2024 specifies the requirements and tests for earthing enhancing compounds producing low resistance of an earth termination system. This third edition cancels and replaces the second edition published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Figure A.1 has been replaced with a simpler one that clearly shows the high and low corrosion load limits of the earth enhancing compounds without the need for special knowledge;
b) pH measurement has been introduced.

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IEC 62561-5:2023(Main)

Lightning protection system components (LPSC) - Part 5: Requirements for earth electrode inspection housings and earth electrode seals

IEC 62561-5:2023 specifies the requirements and tests for earth electrode inspection housings (earth housings) installed in the earth and for earth electrode seals. Lightning protection system components (LPSC) can also be suitable for use in hazardous atmospheres. For this reason, there are additional requirements when installing the components under such conditions. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) A classification of earth electrode seals has been added.

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IEC 62561-4:2023(Main)

Lightning protection system components (LPSC) - Part 4: Requirements for conductor fasteners

IEC 62561-4:2023 deals with the requirements and tests for metallic and non-metallic conductor fasteners that are used to retain and support the air-termination, down-conductor and earth-termination systems. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with the latest edition of ISO IEC 60068-2-52:2017 relating to salt mist atmosphere treatment;
b) alignment with the new edition of ISO 22479:2019 relating to humid sulphurous atmosphere treatment;
c) new normative annex for the applicability of previous tests.

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IEC 62561-3:2023(Main)

Lightning protection system components (LPSC) - Part 3: Requirements for isolating spark gaps (ISGs)

IEC 62561-3:2023 specifies the requirements and tests for isolating spark gaps (ISGs) for lightning protection systems. ISGs can be used to indirectly bond a lightning protection system to other nearby metalwork where a direct bond is not permissible for functional reasons. This third edition cancels and replaces the second edition, published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition.
a) alignment with the latest edition of ISO 22479 relating to humid sulphurous atmosphere treatment;
b) addition of a new normative Annex D for the applicability of previous tests.

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TC 81

Amendment 1 - Assessment of the risk of damage due to lightning

Amendement 1 - Evaluation des risques de dommages liés à la foudre

Assesment of the risk of damages due to the lightning - Amendment 1

General Information

Relations

IEC/TR 61662:1998/A1:1998

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QAI Laboratories

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Frequently Asked Questions

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