IEC 61000-4-27:2000/AMD1:2009
Amendment 1 - Electromagnetic compatibility (EMC) - Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current not exceeding 16 A per phase
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About This Item
IEC 61000-4-27:2000/AMD1:2009 provides Amendment 1 to the EMC testing and measurement technique for unbalance immunity testing of equipment with input current not exceeding 16 A per phase. It is relevant where engineering teams, laboratories, and compliance specialists need a controlled reference for evaluating how electrical equipment responds to unbalanced supply conditions. As a supporting document to IEC 61000-4-27:2000, it is commonly used to update technical review, documented evaluation, and conformity assessment workflows for products subject to electromagnetic compatibility requirements.
Overview of IEC 61000-4-27:2000/AMD1:2009
This amendment modifies the underlying electromagnetic compatibility test method for unbalance immunity, helping align the parent document with revised technical expectations. IEC 61000-4-27:2000/AMD1:2009 is therefore best viewed as a compliance reference connected to the original testing standard rather than a standalone specification. For organizations carrying out EMC document review or laboratory evaluation, it may be used to confirm which requirements, definitions, or procedural details apply when validating equipment with limited input current per phase.
Compliance applications of IEC 61000-4-27:2000/AMD1:2009
In practical workflows, this amendment is relevant when teams are preparing or reviewing immunity test plans for low-current electrical equipment that must withstand supply unbalance conditions. It may support procurement checks, test lab coordination, and regulatory preparation where EMC performance criteria need to be documented clearly. IEC 61000-4-27:2000/AMD1:2009 is often consulted alongside the parent document during technical assessment, especially when establishing consistent verification activities and comparing results across product evaluation or certification processes.
Importance of compliance with IEC 61000-4-27:2000/AMD1:2009
Using the amended reference helps reduce ambiguity in testing workflows and supports repeatable immunity evaluation under defined conditions. That is important for safety-related decision-making, interoperability review, and quality assurance across engineering documentation and compliance workflows. IEC 61000-4-27:2000/AMD1:2009 can also assist procurement and conformity assessment teams by clarifying which supporting document should accompany the parent EMC test method, improving technical validation and lowering the risk of mismatched requirements during audit or certification preparation.
- Amendment linked to IEC 61000-4-27:2000 for EMC unbalance immunity testing
- Relevant to equipment with input current not exceeding 16 A per phase
- Useful in laboratory evaluation, test planning, and conformity assessment documentation
- Supports consistent interpretation of modified procedural or technical requirements
- Publication Date: 2009-05-02
- Standard Status: Amendment
- Publisher: IEC
- Edition: 1
- This Version: IEC 61000-4-27:2000 (2009-05-02)
- Previous Version: IEC 61000-4-27:2000 (2000-08-30)
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