Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-...
IEC 61788-4:2020 is available as IEC 61788-4:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61788-4:2020 specifies a test method for the determination of the residual resistance ratio (RRR) of Nb-Ti and Nb3Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Al matrix in a strain-…
Woodworking machines — Safety — Part 11: Combined machines
This document gives the safety requirements and measures for stationary and displaceable combined woodworking machines, having at least two separately usable working units and with manual loading and unloading of the workpiece, hereinafter referred to as "machines". The integrated working units can be of these types only:
— a sawing unit;
— a moulding unit;
— a planing unit…
Components for low-voltage surge protection - Part 331: Performance requirements and test methods fo...
IEC 61643-331:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1…
Components for low-voltage surge protection - Part 331: Performance requirements and test methods fo...
<!-- NEW! -->IEC 61643-331:2020 is available as <a href="https://webstore.iec.ch/publication/66706">IEC 61643-331:2020 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.<br />
<br />
IEC 61643-331:2020 is a test specification for metal oxide varistors (MOV…
Components for low-voltage surge protection - Part 331: Performance requirements and test methods fo...
IEC 61643-331:2020 is available as IEC 61643-331:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling…
International Electrotechnical Vocabulary (IEV) - Part 426: Explosive atmospheres
IEC 60050-426:2020 gives terms specifically relevant to explosive atmospheres. This new edition reviews and complements the previous one. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.
Safety in installations for electroheating and electromagnetic processing - Part 1: General requirem...
IEC 60519-1:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60519-1:2020 specifies the general safety requirements for industrial installations or equipment intended for…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-8:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60704-2-8:2020 applies to electric shavers, clippers or trimmers for domestic and similar use, supplied from…
Bases for design of structures — Accidental actions
Accidental actions can be subdivided into accidental actions with a natural cause and accidental actions due to human activities. This document applies to reliability based and risk informed decision making for the design and assessment of structures subject to accidental actions due to human activities. However, fires and human-made earthquakes are not included.
The information presented in this…
Overhead lines - Requirements and tests for Aeolian vibration dampers
IEC 61897:2020 is available as IEC 61897:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61897:2020 applies to aeolian vibration dampers intended for single conductors or earth wires or conductor bundles where dampers are directly attached to each subconductor. The purchaser may adopt…
