IEC 61000-4-28:1999/AMD2:2009
Amendment 2 - Electromagnetic compatibility (EMC) - Part 4-28: Testing and measurement techniques - Variation of power frequency, immunity test for equipment with input current not exceeding 16 A per phase
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About This Item
IEC 61000-4-28:1999/AMD2:2009 is a focused EMC compliance reference for variation of power frequency immunity testing for equipment with input current not exceeding 16 A per phase. It is relevant when engineering teams, laboratories, and procurement specialists need a technical basis for evaluating how electrical equipment responds to power frequency changes under controlled test conditions. As an amendment to IEC 61000-4-28:1999, it should be used as a supporting document alongside the parent publication during technical review, conformity assessment, and verification activities.
What is IEC 61000-4-28:1999/AMD2:2009?
This document is Amendment 2 to the EMC testing and measurement technique described in IEC 61000-4-28:1999. Its role is to modify or update the parent reference rather than serve as a standalone testing standard. In practical terms, IEC 61000-4-28:1999/AMD2:2009 is used to support immunity test planning, laboratory evaluation, and documented evaluation of equipment operating from power systems where frequency variation may affect performance. It is most useful where engineering documentation must reflect the current amended requirement set.
Applications of IEC 61000-4-28:1999/AMD2:2009
IEC 61000-4-28:1999/AMD2:2009 is typically consulted in EMC test programs for electrical and electronic equipment that falls within the stated current range. It may be used by test laboratories, product certification teams, and manufacturers preparing technical files for compliance workflows or regulatory preparation. The amendment is relevant when updating test plans, reviewing acceptance criteria, or aligning laboratory procedures with the parent document. It can also support procurement review when a project requires clear documentary evidence for immunity requirements and technical validation.
Why is IEC 61000-4-28:1999/AMD2:2009 important?
This amendment matters because EMC verification depends on consistent and traceable test references. By linking back to the parent document, IEC 61000-4-28:1999/AMD2:2009 helps organizations maintain operational consistency in testing workflows and avoid ambiguity during conformity assessment preparation. It supports risk management by giving teams a defined basis for reviewing equipment behavior under power frequency variation conditions. For manufacturers, laboratories, and compliance teams, that can improve quality workflows, reduce retest risk, and strengthen engineering documentation used for technical assessment.
- Supporting amendment to IEC 61000-4-28:1999 for EMC immunity testing references
- Relevant to equipment with input current not exceeding 16 A per phase
- Useful for laboratory procedures, test planning, and conformity assessment records
- Helps align technical documentation with amended compliance requirements
- Publication Date: 2009-05-02
- Standard Status: Amendment
- Publisher: IEC
- Edition: 1
- This Version: IEC 61000-4-28:1999 (2009-05-02)
- Previous Version: IEC 61000-4-28:1999 (2001-11-07)
- Previous Version: IEC 61000-4-28:1999 (1999-11-25)
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