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IEC 62271-203:2022 specifies requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas or gas mixture other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. This third edition cancels and…

This document provides nomenclature for general modes of gear tooth wear and failure. It classifies, identifies, and describes the most common types of failure and provides information that, in many cases, enables the user to identify failure modes and evaluate the degree or change from original condition. This document is based on experience with steel gears; however, many of the failure modes…

This document provides a list of terms defined in other ISO/TC 42 International Standards, Technical Specifications and Technical Reports relevant to electronic still picture imaging. This document is intended to be used in conjunction with the definition sources listed.

This document specifies the general conditions that apply to vehicle ride comfort test methods. In particular, it specifies general conditions for: —    variables; —    measuring equipment and data processing; —    environment (test track and wind velocity); —    test vehicle preparation (tuning and loading); —    initial driving; —    test reports (general data and test conditions). These items…

IEC 60335-2-40:2022 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60335-2-40:2022 edition 7.0 and the previous IEC 60335-2-40:2018 edition 6.0. Furthermore, comments from IEC SC 61D experts are provided to explain the reasons of the most relevant changes, or to clarify any part…

support equipment (GSE) with respect to a risk of fire, electric shock, and explosion hazards associated with the battery powered electrical system. 1.2 These requirements also cover these electrical systems when they are used to convert fueled GSE to battery powered GSE. 1.3 In accordance with 1.1, the minimum GSE electrical system consists of the battery and integral battery management…

IEC TR 63044-2:2022(E) provides the environmental conditions for HBES/BACS devices, when declared in the manufacturer's documentation for use in one or more of the environment classes as defined in Clause 6 of this document.

IEC 63269:2022 specifies the minimum requirements for aspects related to operation, construction, documentation, methods of testing and required test results for ITU-R M.2135 AMRD Group A man overboard (MOB) devices intended for alerting and locating purposes, as defined by IMO and in accordance with ITU‑R M.493 Class-M. This document consists of three modules where the first module, Module A,…

IEC 60335-2-40:2022 deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units, dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial units. Their maximum rated voltage being not more than 300 V for single phase appliances and 600 V for multi-phase…

This document defines terminology related to autonomous ship systems, which includes ships that can be classified as a “Maritime Autonomous Surface Ship” (MASS) according to the preliminary definitions from the International Maritime Organization (IMO). Autonomous ship system can also be applied to similar ship types for use on inland waterways.