Rare earth — Determination of rare earth content in individual rare earth metals and their oxides — ...
This document specifies a titration method for the determination of rare earth content in 15 kinds of individual rare earth metals (lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium) and their oxides.
The determination ranges for the rare earth content in mass fraction are as follows:
— …
Microgrids - Part 1: Guidelines for microgrid projects planning and specification
IEC TS 62898-1:2017+AMD1:2023 provides guidelines for microgrid projects planning and specification. Microgrids considered in this document are alternating current (AC) electrical systems with loads and distributed energy resources (DER) at low or medium voltage level. This document does not cover direct current (DC) microgrids. Microgrids are classified into isolated microgrids and non-isolated…
Power quality management - Part 100: Impact of power quality issues on electrical equipment and powe...
IEC TR 63222-100:2023, which is a Technical Report, collects relevant information on power quality impacts from, e.g., CIGRE reports, case studies, research findings, etc., in order to uncover the mechanisms of how electrical equipment/installations/system are impacted by power quality disturbances, as well as to fully understand the guidelines for power quality management. The contents of this…
General method for assessing the proportion of reused components in products
IEC 63333:2023 deals with the assessment of the proportion of reused components in products on a horizontal level, which can be applied at any point in the life of the product. This document applies to electrical and electronic products. It can also be applied to other product types.
This document is intended to be used in the assessment of the proportion of reused components in products. It can…
Railway applications - Rolling stock - Batteries for auxiliary power supply systems - Part 5: Lithiu...
IEC 62973-5:2023 applies to lithium-ion batteries for auxiliary power supply systems used on rolling stock. This document specifies the requirements of the characteristics and tests for the lithium-ion cells, and supplements IEC 62973-1 which is applied to any rolling stock types (e.g. light rail vehicles, tramways, streetcars, metros, commuter trains, regional trains, high speed trains,…
L'IEC 62973-5:2023 s'applique aux batteries lithium-ion destinées aux systèmes d'alimentation auxiliaire utilisés sur le matériel roulant. Le présent document spécifie les exigences des caractéristiques et essais des éléments lithium-ion et complète l'IEC 62973-1 qui s'applique au matériel roulant de tous types (par exemple, véhicules ferroviaires de métro léger, tramways…
Nuclear Power plants - Instrumentation and control systems - Use of formal security models for I&...
IEC TR 63415:2023 provides an overview over the formalized modelling and designing of cybersecure architectures to apply for I&C system cybersecurity enforcement at NPPs. The plant-specific risk assessment can use the techniques covered by this TR. This document considers the complex problem of NPP I&C architecture synthesis to address particular issues:
- asset classification,
-…
Railway applications - Fixed installations - Electric traction - Copper and copper alloy catenary wi...
IEC 63190:2023 specifies the characteristics of copper and copper alloy catenary wires for use on overhead contact lines. This document also covers auxiliary catenary wires. It establishes the product characteristics, the test methods, checking procedures to be used with the catenary wires, together with packing, ordering and delivery conditions.
