Category Archives: IEC/TR

IEC/TR 62678 Ed. 1.0 en:2010

Audio, video and multimedia systems and equipment activities and considerations related to accessibility and usability –

Published by: 2010-10-05 / 2010-10-05 / 40 pages
IEC/TR 62678:2010(E) provides information on accessibility and usability terms, activities, completed and ongoing standards, technical reports, projects, and specifies user needs that may or may not apply to audio, video and multimedia systems and equipment. Comments about demographics and public policies are included. A checklist of accessibility and usability considerations is also included. Industry experts may or may not apply this information when they evaluate opportunities to integrate support for accessibility and usability in their work.

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IEC/TR 60493-3 Ed. 1.0 en:2017

Guidelines for the statistical analysis of ageing test data – Part 3: Minimum specimen numbers at different test conditions with given experimental data

Published by: 2017-05-11 / 2017-05-11 / 19 pages
IEC TR 60493-3:2017(E) clarifies how a statistical analysis can be done with a small number of samples.
This document will be useful when the accelerated test method is difficult to carry out, for example in cases where the dimensions of test specimens (including test devices) are very large in scale or the cost of test specimens is high. Testing is facilitated by enabling users to reduce the number of test specimens.

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IEC/TR 63072-1 Ed. 1.0 en:2017

Photonic integrated circuits – Part 1: Introduction and roadmap for standardization

Published by: 2017-05-11 / 2017-05-11 / 46 pages
IEC TR 63072-1:2017(E) which is a Technical Report, provides an introduction to photonic integrated circuits (PICs) and describes a roadmap for the standardization of PIC technology over the next decade.
Keywords: photonic integrated circuits (PICs)

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IEC/TR 62543 Ed. 1.2 en:2017

High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC) CONSOLIDATED EDITION

Published by: 2017-05-23 / 2017-05-23 / 157 pages
IEC/TR 62543:2011+A1:2013+A2:2017 gives general guidance on the subject of voltage-sourced converters used for transmission of power by high voltage direct current (HVDC). It describes converters that are not only voltage-sourced (containing a capacitive energy storage medium and where the polarity of d.c. voltage remains fixed) but also self-commutated, using semiconductor devices which can both be turned on and turned off by control action. The scope includes 2-level and 3-level converters with pulse-width modulation (PWM), along with multi-level converters, but excludes 2-level and 3-level converters operated without PWM, in square-wave output mode. HVDC power transmission using voltage sourced converters is known as "VSC transmission". The various types of circuit that can be used for VSC transmission are described in the report, along with their principal operational characteristics and typical applications. The overall aim is to provide a guide for purchasers to assist with the task of specifying a VSC transmission scheme. Line-commutated and current-sourced converters are specifically excluded from this report. This technical report cancels and replaces IEC/PAS 62543:2008 (Ed.1) which was published by IEC and CIGRÉ jointly, and combined with engineering experience.
This consolidated version consists of the first edition (2011), its amendment 1 (2013) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.

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IEC/TR 62453-51-10 Ed. 1.0 en:2017

Field device tool (FDT) interface specification – Part 51-10: Communication implementation for common object model – IEC 61784 CPF 1

Published by: 2017-05-11 / 2017-05-11 / 80 pages
IEC TR  62453-51-10:2017(E) which is a Technical Report, provides additional information for integrating the Foundation™ Fieldbus (FF) protocol into the COM-based implementation of the FDT Specification (IEC TR 62453-41). This document describes communication definitions, protocol specific extensions and the means for block (e.g. transducer, resource or function blocks) representation. This document cancels and replaces IEC TR 62453-501 published in 2009. This edition constitutes a technical revision. The main changes are updates of the methods to access instance and device data (see Clause 5) and updates of the XML schemas (see Clauses 7to 11).

 

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IEC/TR 61850-90-17 Ed. 1.0 en:2017

Communication networks and systems for power utility automation – Part 90-17: Using IEC 61850 to transmit power quality data

Published by: 2017-05-22 / 2017-05-22 / 93 pages
IEC TR 61850-90-17:2017(en) provides a way of exchanging power quality data between instruments whose functions include measuring, recording and possibly monitoring power quality phenomena in power supply systems, and clients using them in a way that is compliant to the concepts of IEC 61850. The main goal is the interoperability of power quality instruments. This document provides::
– Guidelines for using of IEC 61850 for power quality domain;
– Name space extensions based on power quality function assessment;
– Profile for using IEC 61850 in the specific context of IEC 61000-4-30.

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IEC/TR 63091 Ed. 1.0 en:2017

Study for the derating curve of surface mount fixed resistors – Derating curves based on terminal part temperature

Published by: 2017-05-24 / 2017-05-24 / 123 pages
IEC TR 63091:2017(E) is a technical report and is applicable to SMB resistors with sizes equal or smaller than the RR6332M, including the typical rectangular and cylindrical SMD resistors mentioned in IEC 60115-8.

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IEC/TR 60919-1 Ed. 3.2 en:2017

Performance of high-voltage direct current (HVDC) systems with line-commutated converters – Part 1: Steady-state conditions CONSOLIDATED EDITION

Published by: 2017-05-23 / 2017-05-23 / 194 pages
IEC/TR 60919-1:2010+A1:2013+A2:2017 provides general guidance on the steady-state performance requirements of HVDC systems. It concerns the steady-state performance of two-terminal HVDC systems utilizing 12-pulse converter units comprised of three-phase bridge (double- way) connections, but it does not cover multi-terminal HVDC transmission systems. Both terminals are assumed to use thyristor valves as the main semiconductor valves and to have power flow capability in both directions. Diode valves are not considered in this report. This edition includes the following significant technical changes with respect to the previous edition:
a) the changes have been made to the description of multi 12-pulse groups per pole, especially for a large scale ultra high-voltage direct current (UHVDC) converter arrangement;
b) the different arrangements of d.c. smoothing reactors have been included;
c) the figures depicting two 12-pulse groups per pole arrangement have been added.
This consolidated version consists of the third edition (2010), its amendment 1 (2013) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.

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IEC/TR 63079 Ed. 1.0 en:2017

Code of practice for hearing-loop systems (HLS)

Published by: 2017-04-10 / 2017-04-10 / 103 pages
IEC TR 63079:2017(E) gives recommendations for and guidance on the design, planning, installation, testing, operation and maintenance of a hearing-loop system (HLS) intended for communicating speech, music and/or other signals. It is mainly concerned with HLS for hearing enhancement, in which the signals are communicated to users of hearing aids equipped with magnetic pick-up coils.
This document does not apply to induction-loop systems which use a carrier frequency, nor to other systems for hearing enhancement purposes which do not use magnetic induction.

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