Measuring relays and protection equipment - Functional requirements for over/under current protection Ingestion-build-58863

Measuring relays and protection equipment - Functional requirements for over/under current protection Ingestion-build-58863

single phase air-cooled (natural or forced)

It should be considered as a supplement to ISO 14630

as well as commercial transactions

Guidance under ISO 10005 assists in establishing a quality plan to increase confidence that requirements are met

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

Bolt and nut assemblies conforming to this standard have been designed to allow preloading in accordance with ENV 1993-1-1 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt

Modifications include the following:

This document is concerned only with measured levels of salt contamination based upon either laboratory or field testing

Closer adherence to the Basic Functional Safety Standard IEC 61508

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

3 Background

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