Materials for printed boards and other interconnecting structures – Part 6-3: Sectional specificatio...
IEC 61249-6-3:2023 covers finished fabrics woven from ‘‘E’’ glass electrical grade glass fibre yarns that are intended as a reinforcing material in laminated plastics for electrical and electronic use. All fabrics covered by this specification are plain weave.
This specification determines the nomenclature, definitions, general and chemical requirements for the glass, and physical requirements…
Matériaux pour circuits imprimés et autres structures d’interconnexion - Partie 6-3 : Ensemble de sp...
L'IEC 61249-6-3:2023 couvre les tissus finis fabriqués à partir de fils de fibre de verre de qualité électrique (verre "E"), qui sont destinés à servir de matériau de renfort dans les plastiques stratifiés à usage électrique et électronique. Tous les tissus couverts par cette spécification sont en armure toile.
Cette spécification détermine la nomenclature, les définitions, les…
Instrument transformers - Part 1: General requirements
IEC 61869-1:2023 is applicable to newly manufactured instrument transformers intended for applications where the nominal voltage is higher than 1 kV AC or 1,5 kV DC, with an analogue or a digital secondary signal for measuring, protection and control purposes, with rated frequencies from 15 Hz to 400 Hz, or for DC applications.
The general requirements for instrument transformers for…
Transformateurs de mesure - Partie 1: Exigences générales
L'IEC 61869-1:2023 s’applique aux transformateurs de mesure récemment fabriqués destinés à des applications dont la tension nominale est supérieure à 1 kV en courant alternatif ou à 1,5 kV en courant continu, qui utilisent un signal secondaire analogique ou numérique à des fins de mesure, de protection et de commande, avec des fréquences assignées comprises entre 15 Hz et 400 Hz, ou à des…
Cybersecurity — Supplier relationships — Part 3: Guidelines for hardware, software, and services sup...
This document provides guidance for product and service acquirers, as well as suppliers of hardware, software and services, regarding:
a) gaining visibility into and managing the information security risks caused by physically dispersed and multi-layered hardware, software, and services supply chains;
b) responding to risks stemming from this physically dispersed and multi-layered hardware…
Dosimétrie pour les expositions au rayonnement cosmique à bord d'un avion civil — Partie 3: Mes...
Le présent document fournit les principes de base permettant de mesurer l’équivalent de dose ambiant aux altitudes de vol pour l’évaluation de l’exposition au rayonnement cosmique à bord d’un avion.
Dosimetry for exposures to cosmic radiation in civilian aircraft — Part 3: Measurements at aviation ...
This document gives the basis for the measurement of ambient dose equivalent at flight altitudes for the evaluation of the exposures to cosmic radiation in civilian aircraft.
Cybersecurity - Supplier relationships - Part 3: Guidelines for hardware, software, and services sup...
This document provides guidance for product and service acquirers, as well as suppliers of hardware, software and services, regarding:
a) gaining visibility into and managing the information security risks caused by physically dispersed and multi-layered hardware, software, and services supply chains;
b) responding to risks stemming from this physically dispersed and multi-layered hardware…
Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically ...
IEC TS 62903:2023 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC TS 62903:2023:
a ) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic…
Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically ...
IEC TS 62903:2023:
a ) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic transducer calibration,
b) establishes the measurement conditions and experimental procedure required to determine the transducer's electroacoustic parameters and acoustic output power using the self-reciprocity method,
c) establishes the criteria for checking the reciprocity…
