91.120.40 - Lightning protection
ICS 91.120.40 Details
Lightning protection
Blitzschutz
Protection contre la foudre
Zaščita pred strelo
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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.
- Standard46 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard46 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard97 pagesEnglish languagesale 15% off
- Amendment16 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard135 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard125 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard140 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 62305 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 placed outside the structure;
− nuclear power plants.
NOTE 1 In these cases, structures usually fall under special regulations produced by various specialized authorities. The IEC 62305 series is generally considered as a minimum requirement for these structures. For structures (subsidiary or others) not falling under such special regulations, IEC 62305 still applies.
NOTE 2 Lightning protection of wind turbines is also covered by IEC 61400-24 [14].
NOTE 3 Until any further information by CIGRE is available the lightning current parameters described in this standard may be applied also for offshore installations.
- Standard78 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard2 pagesEnglish and French languagesale 15% off
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.
The content of the corrigendum 1 (2024-10) has been included in this copy.
- Standard256 pagesEnglish and French languagesale 15% off
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.
- Standard270 pagesEnglish and French languagesale 15% off
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.
- Standard153 pagesEnglish and French languagesale 15% off
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.
- Standard280 pagesEnglish and French languagesale 15% off
- Technical report59 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-7:2024 is available as IEC 62561-7:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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.
- Standard22 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-7:2024 is available as IEC 62561-7:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.
- Standard22 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard58 pagesEnglish languagesale 15% off
- Standard37 pagesEnglish and French languagesale 15% off
IEC 62561-5:2023 is available as IEC 62561-5:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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.
- Standard21 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-5:2023 is available as IEC 62561-5:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.
- Standard21 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard57 pagesEnglish languagesale 15% off
- Standard37 pagesEnglish and French languagesale 15% off
IEC 62561-4:2023 is available as IEC 62561-4:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-4:2023 is available as IEC 62561-4:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard73 pagesEnglish languagesale 15% off
- Standard46 pagesEnglish and French languagesale 15% off
IEC 62561-3:2023 is available as IEC 62561-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-3:2023 is available as IEC 62561-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 62561 specifies the requirements and tests for devices intended to count the number of lightning strikes based on the current flowing in a conductor. This conductor may be part of a lightning protection system (LPS) or connected to an SPD installation or other conductors, which are not intended to conduct a significant portion of lightning currents.
LSCs for use in hazardous atmospheres, extra requirements for the components may be necessary to be taken.
NOTE In CENELEC countries, testing requirements of components for explosive atmosphere are specified in CLC/TS 50703-2.
- Standard28 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard72 pagesEnglish languagesale 15% off
- Standard46 pagesEnglish and French languagesale 15% off
This part of IEC 62561 specifies the requirements and tests for devices intended to count the number of lightning strikes based on the current flowing in a conductor. This conductor may be part of a lightning protection system (LPS) or connected to an SPD installation or other conductors, which are not intended to conduct a significant portion of lightning currents. LSCs for use in hazardous atmospheres, extra requirements for the components may be necessary to be taken. NOTE In CENELEC countries, testing requirements of components for explosive atmosphere are specified in CLC/TS 50703-2.
- Standard28 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-1:2023 is available as IEC 62561-1:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62561-1:2023 specifies the requirements and tests for metallic connection components that form part of a lightning protection system (LPS). Typically, these can be connectors, clamps, bonding and bridging components, expansion pieces and test joints. 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) definitions of connection types mentioned in the scope have been added;
b) location classification has been expanded in detail;
c) the document has been updated in line with the new edition of ISO 22479:2019 on humid sulphurous atmosphere treatment;
d) a new normative Annex E for reduced test procedures has been introduced.
- Standard32 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-6:2023 specifies the requirements and tests for devices intended to count the number of lightning strikes based on the current flowing in a conductor. This conductor can be part of a lightning protection system (LPS) or connected to an SPD installation or other conductors, which are not intended to conduct a significant portion of lightning currents. 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) a new classification according to the internal circuit of LSCs has been added;
b) the tests flowchart in Annex C has been updated to reflect this new classification;
c) the applicability of previous tests has been added (Annex D).
- Standard78 pagesEnglish languagesale 15% off
- Standard50 pagesEnglish and French languagesale 15% off
IEC 62561-1:2023 is available as IEC 62561-1:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62561-1:2023 specifies the requirements and tests for metallic connection components that form part of a lightning protection system (LPS). Typically, these can be connectors, clamps, bonding and bridging components, expansion pieces and test joints. 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) definitions of connection types mentioned in the scope have been added; b) location classification has been expanded in detail; c) the document has been updated in line with the new edition of ISO 22479:2019 on humid sulphurous atmosphere treatment; d) a new normative Annex E for reduced test procedures has been introduced.
- Standard32 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-1:2023 specifies the requirements and tests for metallic connection components that form part of a lightning protection system (LPS). Typically, these can be connectors, clamps, bonding and bridging components, expansion pieces and test joints. 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) definitions of connection types mentioned in the scope have been added;
b) location classification has been expanded in detail;
c) the document has been updated in line with the new edition of ISO 22479:2019 on humid sulphurous atmosphere treatment;
d) a new normative Annex E for reduced test procedures has been introduced.
- Standard89 pagesEnglish languagesale 15% off
- Standard57 pagesEnglish and French languagesale 15% off
IEC 62858:2019 is available as IEC 62858:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62858:2019 introduces and discusses all necessary measures to make reliable and homogeneous the values of ground flash density, NG and ground strike point density, NSG, obtained from lightning location systems (LLSs) in various countries. Only parameters that are relevant to risk assessment are considered. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Two informative annexes are introduced dealing with the determination of lightning density for risk calculation (Annex A) and ground strike point calculation methods (Annex B).
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the requirements and testing for joints of metal sheets, with or without insulating coatings, used as natural components in roofs, facades or walls of buildings, suitable to conduct lightning current in LPS where the interconnection of these metal sheets does not ensure durable electrical connection.
NOTE This document does not deal with the lightning interception capabilities of these components. The connection clamps for connecting the metallic sheet with the down conductor to the earth termination system are LPSC, tested according to EN 62561 1.
- Technical specification20 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the requirements and testing for joints of metal sheets, with or without insulating coatings, used as natural components in roofs, facades or walls of buildings, suitable to conduct lightning current in LPS where the interconnection of these metal sheets does not ensure durable electrical connection. NOTE This document does not deal with the lightning interception capabilities of these components. The connection clamps for connecting the metallic sheet with the down conductor to the earth termination system are LPSC, tested according to EN 62561 1.
- Technical specification20 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-6:2018 specifies the requirements and tests for devices intended to count the number of lightning strikes based on the current flowing in a conductor. This conductor may be part of a lightning protection system (LPS) or connected to an SPD installation or other conductors, which are not intended to conduct a significant portion of lightning currents. LSCs may also be suitable for use in hazardous atmospheres and there are therefore extra requirements necessary for the components to be installed in such conditions. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) removal of previous classification and introduction of a simple division into Type I for impulses (direct lightning current detection) and Type II for lightning surge current detection, with appropriate testing for each type; b) modification and addition of terms and definitions; c) addition of a new Annex C (tests flow chart).
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-7:2018 specifies the requirements and tests for earthing enhancing compounds producing low resistance of an earth termination system. This second edition cancels and replaces the first edition, published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) information concerning the execution of the test for the determination of the resistivity in 5.4.3; b) addition of Annex A for the assessment of the corrosion load.
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-2:2018 specifies the requirements and tests for:
metallic conductors (other than "natural" conductors) that form part of the air-termination and down-conductor systems,
metallic earth electrodes that form part of the earth-termination system. This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition:
Tables 2 and 4 have been merged into one Table (Table 2).
Figure 2 showing the coating measurement of a plate conductor has been added.
- Standard35 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the requirements and tests relevant to Lightning Protection System Components suitable for explosive atmospheres (Ex-LPSC).
NOTE This document does not consider EX-LPS Components certified according to EN 60079 series. If a product has already been tested according to ATEX, it does not have to be tested again according to CLC/TS 50703-2.
- Technical specification25 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard46 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the requirements and tests relevant to Lightning Protection System Components suitable for explosive atmospheres (Ex-LPSC). NOTE This document does not consider EX-LPS Components certified according to EN 60079 series. If a product has already been tested according to ATEX, it does not have to be tested again according to CLC/TS 50703-2.
- Technical specification25 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-5:2017 specifies the requirements and tests for earth electrode inspection housings (earth housing) installed in the earth and for earth electrode seals. Lightning protection system components (LPSC) can also be suitable for use in hazardous atmospheres. There are therefore additional requirements when installing the components under such conditions. This second edition cancels and replaces the first edition, published in 2011. This edition constitutes a technical revision. This edition includes the following major technical changes with respect to the previous edition. - Testing requirements have been added for the sealing of earth electrode installed in or through watertight concrete.
- Standard20 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62561-4:2017 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 document does not cover the fixing of conductor fasteners to the fabric of structures due to the vast number and types used in modern day construction. LPSC can also be suitable for use in hazardous atmospheres. There are therefore additional requirements when installing the components in such conditions. This second edition cancels and replaces the first edition, published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - new detailed flow chart of the tests; - in Annexes A and B, composite fasteners have been added.
- Standard25 pagesEnglish languagesale 10% offe-Library read for1 day
- Standard25 pagesEnglish languagesale 10% offe-Library read for1 day
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.
- Standard46 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62793:2020 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.
- Standard43 pagesEnglish languagesale 15% off
- Standard90 pagesEnglish and French languagesale 15% off
IEC 62561-3:2017(E) specifies the requirements and tests for isolating spark gaps (ISG) 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 second edition cancels and replaces the first edition, published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. - a new classification has been added related to ISGs location installation; - an updated flow chart of tests has been developed.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
NEW!IEC 62561-1:2017 is available as IEC 62561-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62561-1:2017 specifies the requirements and tests for metallic connection components that form part of a lightning protection system (LPS). Typically, these can be connectors, clamps, bonding and bridging components, expansion pieces and test joints. For the purposes of this document the following connection types are considered as connection components: exothermic, brazing, welding, clamping, crimping, seaming, screwing or bolting. Testing of components for an explosive atmosphere is not covered by this document. This second edition cancels and replaces the first edition, published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a. classification of connection components in permanent and non-permanent connection; b. requirements and corresponding tests for permanent connection components such as exothermic, brazing, welding, crimping, seaming; c. flow chart of tests for connection components.
- Standard28 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62858:2019 is available as IEC 62858:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62858:2019 introduces and discusses all necessary measures to make reliable and homogeneous the values of ground flash density, NG and ground strike point density, NSG, obtained from lightning location systems (LLSs) in various countries. Only parameters that are relevant to risk assessment are considered. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Two informative annexes are introduced dealing with the determination of lightning density for risk calculation (Annex A) and ground strike point calculation methods (Annex B).
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
Part 2 of IEC 62561 specifies the requirements and tests for:
– metallic conductors (other than "natural" conductors) that form part of the air-termination
and down-conductor systems,
– metallic earth electrodes that form part of the earth-termination system.
- Corrigendum8 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62858:2019 introduces and discusses all necessary measures to make reliable and homogeneous the values of ground flash density, NG and ground strike point density, NSG, obtained from lightning location systems (LLSs) in various countries. Only parameters that are relevant to risk assessment are considered. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Two informative annexes are introduced dealing with the determination of lightning density for risk calculation (Annex A) and ground strike point calculation methods (Annex B).
- Standard46 pagesEnglish languagesale 15% off
- Standard30 pagesEnglish and French languagesale 15% off
Part 2 of IEC 62561 specifies the requirements and tests for:
– metallic conductors (other than "natural" conductors) that form part of the air-termination
and down-conductor systems,
– metallic earth electrodes that form part of the earth-termination system.
- Corrigendum8 pagesEnglish languagesale 10% offe-Library read for1 day