Optics and photonics. Interferometric measurement of optical elements and optical systems - Measurement and evaluation techniques Ingestion-build-256245 When the transformers or power

When the transformers or power supply units are incorporated into low voltage switchgear and controlgear assemblies for construction sites as specified in IEC 60439‑4

224 | ISO/IEC 8073 and ITU-T Rec

Implementation guideline for digital interface to instrument transformers using IEC 61850-9-2

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These requirements include evaluation of physicochemical properties that are relevant to biocompatibility

Optics and photonics. Interferometric measurement of optical elements and optical systems - Measurement and evaluation techniques Ingestion-build-256245 When the transformers or power1 Scope This document gives fundamental explanations to interferometric measurement objects, describes hardware aspects of interferometers and evaluation methods, and gives recommendations for test reports and calibration certificates.