Measuring relays and protection equipment - Functional requirements for over/under current protection Ingestion-build-58863 single phase air-cooled (natural or

single phase air-cooled (natural or forced)

identification of contents and sampling and testing to determine compliance with this standard

Modifications include the following:

Qualification system procedures need to be based on a set of rules leading to the formal assessment of an applicant by a Qualification Body against set obligations

BS EN 60512-1-4 is to be used when referenced by the detailed specification to test mechanical components overseen by the IEC subcommittee 48B

Measuring relays and protection equipment - Functional requirements for over/under current protection Ingestion-build-58863 single phase air-cooled (natural or