Measuring relays and protection equipment - Functional requirements for over/under voltage protection Ingestion-build-258901 BS EN 61000-4-5 defines:

BS EN 61000-4-5 defines:

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6 Verification of safety and hygiene requirements and/or protective measures

This Publicly Available Specification (PAS) specifies the requirements for the provision of ICT facilities and services in a workplace

Measuring relays and protection equipment - Functional requirements for over/under voltage protection Ingestion-build-258901 BS EN 61000-4-5 defines:1 Scope This part of IEC 60255 specifies minimum requirements for over under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics. This standard defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy