IEC 61643-21:2000/COR1:2001

IEC 61643-21:2000/COR1:2001 is a corrigendum linked to the parent document IEC 61643-21:2000, addressing Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods. It is relevant when teams need a reliable technical reference for reviewing surge protective device requirements, testing workflows, and conformity assessment records for telecommunications and signalling applications. As a supporting document, it is typically used alongside the parent publication during engineering documentation, procurement review, and compliance preparation.

Purpose of IEC 61643-21:2000/COR1:2001

The purpose of IEC 61643-21:2000/COR1:2001 is to modify or clarify the parent technical text so that performance requirements and test methods for surge protective devices remain properly understood and applied. In practice, this kind of corrigendum matters for technical validation, documented evaluation, and quality workflows where precise interpretation of requirements affects laboratory evaluation and regulatory preparation. It helps maintain consistency when assessing protective devices intended for telecommunications and signalling networks.

Compliance applications of IEC 61643-21:2000/COR1:2001

Organizations may use IEC 61643-21:2000/COR1:2001 when checking product files, test reports, or compliance references related to low-voltage surge protection for network interfaces used in telecommunications and signalling systems. It is particularly useful in engineering review, certification support, and procurement verification where the parent document IEC 61643-21:2000 is being applied and any corrigendum must be considered. The reference can also support internal testing standard alignment and technical assessment of device performance criteria.

Benefits of IEC 61643-21:2000/COR1:2001

Using IEC 61643-21:2000/COR1:2001 helps teams keep technical documentation aligned with the corrected form of the parent requirement, reducing the risk of inconsistency in compliance workflows. That can support safer product evaluation, clearer laboratory interpretation, and better preparation for conformity assessment. For procurement and engineering teams, the corrigendum improves confidence that specifications, test methods, and supporting evidence are being reviewed against the most relevant technical text, which can strengthen operational consistency and risk management.

• Supporting corrigendum for IEC 61643-21:2000, not a standalone technical requirement set
• Relevant to surge protective devices connected to telecommunications and signalling networks
• Useful for reviewing performance requirements and testing methods in compliance workflows
• Helps align engineering documentation, test evidence, and procurement checks
• Supports conformity assessment, technical review, and regulatory preparation activities