Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter
IEC 60793-1-45:2017 establishes uniform requirements for measuring the mode field diameter (MFD) of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes…
Power transformers - Part 57-129: Transformers for HVDC applications
IEC/IEEE 60076-57-129:2017(E) specifies requirements of liquid-immersed three-phase and single-phase converter transformers for use in high voltage direct current (HVDC) power transmission systems including back-to-back applications. It applies to transformers having two, three or multiple windings.
This document does not apply to:
- converter transformers for industrial applications (see IEC…
Content management - Monitoring and management of personal digital content
IEC 62919:2017(E) specifies the requirements, protocol and the data format to visualize personal content saved on various devices, such as mobile phones, music players, personal computers, hard disk recorders and e-book devices. It also specifies methods for gathering information of digital content saved on personal devices and shared within a group, and to extract the gathered…
Environmental testing - Part 2-52: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution)
<!-- NEW -->IEC 60068-2-52:2017 is now available as <a href="https://webstore.iec.ch/publication/61926">IEC 60068-2-52:2017 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.<br />
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IEC 60068-2-52:2017 specifies the application of the cyclic salt…
Machine tools — Environmental evaluation of machine tools — Part 1: Design methodology for energy-ef...
ISO 14955-1:2017 constitutes the application of eco-design standards to machine tools, mainly for automatically operated and/or numerically controlled (NC) machine tools.
ISO 14955-1:2017 addresses the energy efficiency of machine tools during the use stage, i.e. the working life of the machine tool. Environmentally relevant stages other than the use stage and relevant impacts other than energy…