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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…

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…

This document specifies a method of automated colour profile distribution to large format inkjet printers. This document applies to digital colour printers and their printer controllers for which ICC colour management is necessary or desired. This document also applies to the print settings profile providers. The extent of automation covered includes the printer controller acquiring information…

This document specifies a method of automated colour profile distribution to large format inkjet printers. This document applies to digital colour printers and their printer controllers for which ICC colour management is necessary or desired. This document also applies to the print settings profile providers. The extent of automation covered includes the printer controller acquiring information…

IEC 62477-1:2022 applies to power electronic converter systems (PECS), any specified accessories, and their components for electronic power conversion and electronic power switching, including the means for their control, protection, monitoring and measurement, such as with the main purpose of converting electric power, with rated system voltages not exceeding 1 000 V AC or 1 500 V DC. This…

This document provides guidelines for the assessment of torsional natural frequencies and component strength, under normal operating conditions, for the coupled shaft train, including long elastic rotor blades, of steam and gas turbine generator sets. In particular, the guidelines apply to the torsional responses of the coupled shaft train at grid and twice grid frequencies due to electrical…

Le présent document fournit des lignes directrices pour l’évaluation des fréquences naturelles de torsion et de la résistance des composants, dans des conditions de fonctionnement normales, pour le système d’arbres accouplés, y compris les longues aubes élastiques de rotor, de groupes générateurs à turbines à vapeur et à gaz. En particulier, les lignes directrices s’appliquent aux réponses en…

This document gives guidance for the organization of learning and development in the workplace. This guidance is concerned with formal and informal learning that addresses short-term operational needs and the long-term skills needs of an organization as well as the career-related and life-long learning needs of individual workers as these align with organizational context and strategy. The…

1 Scope 1.1 This standard applies to flashlights and lanterns powered by secondary (rechargeable) batteries and general purpose primary (non-rechargeable) batteries with a maximum voltage of 75 V d.c. The terms flashlights and lanterns as used within this standard refer to products that are battery-powered. 1.2 Flashlights and lanterns that are battery-powered and also powered from a line-…