Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical...
IEC 60947-4-1:2023 is applicable to the following equipment:
- electromechanical contactors and starters including motor protective switching devices (MPSD and IMPSD);
- actuators of contactor relays;
- contacts dedicated exclusively to the coil circuit of the contactor or the contactor relay;
- dedicated accessories (e.g. dedicated wiring, dedicated latch accessory);
intended to be…
Appareillage à basse tension - Partie 4-1: Contacteurs et démarreurs de moteurs – Contacteurs et dém...
L'IEC 60947-4-1:2023 s'applique aux équipements suivants:
- contacteurs électromécaniques et démarreurs, y compris les appareils de connexion de protection des moteurs (ACPM et ACPIM);
- organes de commande de contacteurs auxiliaires;
- contacts destinés exclusivement au circuit de la bobine du contacteur ou du contacteur auxiliaire;
- accessoires dédiés (câblage dédié, accessoires…
Fibre optic interconnecting devices and passive components - Connector optical interfaces for multi-...
IEC PAS 63503-3-30:2023 defines the dimensional limits of the optical interface for 125 μm outer diameter 4-core physically contacting fibre optic connectors with 2,5 mm or 1,25 mm diameter cylindrical zirconia (ZrO2) ferrules to ensure reliable interconnection and intermateability.
Ferrules made from the material specified in this document are suitable for use in all the operating service…
Intelligent transport systems — Mobility integration — Mobility integration needs for vulnerable use...
This document provides a review of mobility integration standardization efforts supporting all travellers using active and light transport modes and identifies gaps where additional standardization is potentially required. The gap analysis is focused on cooperative intelligent transportation systems (C-ITS) for all users, including people with disabilities, as they plan, manage and carry out…
Produits pétroliers — Liquides opaques et transparents — Détermination de la viscosité cinématique e...
Le présent document spécifie un Mode opératoire A utilisant des viscosimètres manuels en verre et un Mode opératoire B utilisant des viscosimètres à capillaires en verre dans un assemblage automatisé, pour la détermination de la viscosité cinématique, ν, de produits transparents et opaques. Le domaine d'application couvre les produits pétroliers liquides, les esters méthyliques d'acides…
Corrosion of metals and alloys — Measurement of the electrochemical critical localized corrosion pot...
This document specifies the procedures for testing the resistance to localized corrosion of biomedical Ti alloys fabricated via additive manufacturing (AM) method. This document defines the method of measuring the electrochemical critical localized corrosion potential (E-CLCP) of the AM Ti materials in aqueous environments, including biomedical solutions, for comparative evaluation of resistance…
Water quality — Actinium-227 — Test method using alpha-spectrometry
This document specifies a test method to determine the activity concentration of 227Ac in all types of waters by alpha spectrometry.
The test method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling and handling and test sample preparation…
Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calcu...
This document specifies Procedure A, using manual glass viscometers, and Procedure B, using glass capillary viscometers in an automated assembly, for the determination of the kinematic viscosity, ν, of both transparent and opaque products. The scope includes liquid petroleum products, fatty acid methyl ester (FAME), paraffinic diesel, hydrotreated vegetable oil (HVO), gas to liquid (GTL) and…
This document provides guidance on methods for taking samples from coal seams in the ground, whether from exploration areas or tenements, or from operating underground or open-cut mines. The following methods are described:
a) sampling of small- or large-diameter holes;
b) drill cuttings sampling;
c) open-cut slot sampling;
d) adit, drift or shaft sampling;
e) …
Microgrids - Part 3-1: Technical requirements - Protection and dynamic control
IEC TS 62898-3-1:2020+AMD1:2023 provides guidelines for the specification of fault protection and dynamic control in microgrids. Protection and dynamic control in a microgrid are intended to ensure safe and stable operation of the microgrid under fault and disturbance conditions. This document applies to AC microgrids comprising single or three-phase networks or both. It includes both isolated…