IEC 61557-4:2019
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding
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About This Item
IEC 61557-4:2019 defines the technical reference for assessing the resistance of earth connection and equipotential bonding within low voltage distribution systems up to 1 000 V AC and 1 500 V DC. It is relevant where electrical safety, verification activities, and documented evaluation depend on consistent measurement or monitoring of protective measures. For engineering teams, test laboratories, and procurement specialists, IEC 61557-4:2019 supports a clearer technical basis for compliance workflows and operational consistency in electrical safety assessment.
What is IEC 61557-4:2019?
This document is Part 4 of the IEC 61557 series and focuses on resistance of earth connection and equipotential bonding. In practical terms, it provides a technical framework for evaluating protective measures used in low voltage electrical systems, helping align testing workflows with safety and conformity assessment needs. It is most relevant when organizations need a reliable compliance reference for electrical equipment, installation verification, or laboratory evaluation tied to earthing and bonding performance.
Applications of IEC 61557-4:2019
IEC 61557-4:2019 is commonly used in electrical installation testing, maintenance checks, commissioning activities, and routine technical validation of protective bonding and earth connections. It may support work in low voltage distribution systems, industrial facilities, building services, and other environments where protective measures must be verified before energization or during periodic inspections. The document is also useful for product evaluation, procurement review, and conformity assessment preparation when selecting measuring or monitoring equipment for these tasks.
Why is IEC 61557-4:2019 important?
This reference helps organizations reduce risk by giving a consistent basis for evaluating protective earth and equipotential bonding performance. That consistency matters for safety, technical review, and compliance workflows, especially when different teams or contractors must reach comparable results. It can also support quality assurance and engineering documentation by improving traceability in testing and verification activities. For procurement and compliance teams, the document helps define a clear technical benchmark during specification review and acceptance planning.
- Technical basis for assessing resistance of earth connection and equipotential bonding
- Useful in low voltage electrical safety verification and commissioning workflows
- Supports consistency in laboratory evaluation, inspection, and test documentation
- Relevant to procurement, conformity assessment, and compliance preparation
- Helps align protective measure testing with operational and safety requirements
- Publication Date: 2019-07-26
- Standard Status: Original
- Publisher: IEC
- Edition: 3
- This Version: IEC 61557-4:2019 (2019-07-26)
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