Instrument transformers - Additional requirements for combined transformers1 Scope This part of IEC 61869 applies to newly manufactured combined transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. The requirements and tests of this standard, in addition to the requirements and tests of IEC 618691, IEC 618692 and IEC 618693 cover current and inductive voltage transformers that are necessary for combined instrument transformers.

inspection and testing of PCPV for nuclear reactors

BS EN 4048 specifies the characteristics

The major goal of BS 4878 is to provide assurance that the haulage rope pulleys will provide the essential risk reduction required to achieve hoist safety and hence optimize production efficiency and ensure the project's economic sustainability

The rationale for this decision is that the primary applicable document for space thermal engineers (working on European projects) is the thermal control standard ECSS-E-ST-31

BS EN 1744-6 on cement setting time with recycled aggregate is useful for:

ISO 17021-2 clarifies the requirements for the competence of personnel involved in the certification process

The values thus obtained are not intended for use as levels of performance or quality

but may become so in the near future)

BS EN 60512-25-9 defines a test method to assess the near-end alien crosstalk (ANEXT) and the far-end alien crosstalk (AFEXT) between connectors in close proximity when mounted in their mounting systems

NOTE — Two letters recently added to the Ukrainian official alphabet are not included in the character set of this part

What is BS EN 1097-3 - Determine loose bulk density and voids of aggregates about

Dimension of anchorage threaded holes