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Frequently Asked Questions

IEC/TC 81 is a Technical Committee within CLC. It is named "IEC_TC_81" and is responsible for: To prepare international standards and guides for lightning protection for structures, persons, installations, and contents as well as lightning hazard preventive measures. The objective of the standards will be: • To develop requirements for design and installation of Lightning Protection Systems for structures, • To develop requirements for design and installation of Surge Protection Measures for structures and services as they relate to the protection of structures from lightning effects, • To develop basic requirements for protection against electromagnetic effects due to lightning, • To give general guidance to IEC members that may have need of such requirements, • To define requirements and testing procedures for Lightning Protection System components, • To define basic requirements for the application of thunderstorm warning systems and lightning location systems for lightning protection. This committee has published 54 standards.

IEC/TC 81 develops CLC standards in the area of W31 - LIGHTNING PROTECTION. The scope of work includes: To prepare international standards and guides for lightning protection for structures, persons, installations, and contents as well as lightning hazard preventive measures. The objective of the standards will be: • To develop requirements for design and installation of Lightning Protection Systems for structures, • To develop requirements for design and installation of Surge Protection Measures for structures and services as they relate to the protection of structures from lightning effects, • To develop basic requirements for protection against electromagnetic effects due to lightning, • To give general guidance to IEC members that may have need of such requirements, • To define requirements and testing procedures for Lightning Protection System components, • To define basic requirements for the application of thunderstorm warning systems and lightning location systems for lightning protection. Currently, there are 54 published standards from this technical committee.

CLC is a standardization organization that develops and publishes standards to support industry, commerce, and regulatory requirements.

A Technical Committee (TC) in CLC is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.