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<!-- NEW! -->IEC 61631:2020 is available as <a href="https://webstore.iec.ch/publication/67031">IEC 61631:2020 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 61631:2020 specifies a test method for the mechanical strength of cores made…

IEC 61631:2020 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 61631:2020 specifies a test method for the mechanical strength of cores made of magnetic oxides. This test method…

This document establishes the requirements and recommendations for image contents and electronic display systems to reduce visually induced motion sickness (VIMS), while viewing images on electronic displays. This document is applicable to electronic display systems, including flat panel displays, projectors with a screen, and virtual reality (VR) type of head mounted displays (HMDs), but not…

1 Scope This clause of Part 1 is replaced by the following. This part of IEC 60335 deals with the safety of electric animal-stunning equipment the rated voltage of which is not more than 250 V for single-phase appliances and 480 V for other appliances. NOTE 101 Battery-operated appliances and other d.c. supplied appliances are within the scope of this standard. Dual supply appliances,…

1 Scope 1.1 This Standard applies to the lines and equipment associated with underground electric supply and communication systems located outside fenced supply stations and buildings, and also where the installations or equipment are inside buildings or sections of buildings where they are employed by a utility of a) an electric system; b) a communication system; or c) a community…

1 Scope 1.1 This Standard applies to all types of laboratory fume hoods, including ductless fume hoods. The following clauses are not relevant to ductless fume hoods: 4.3.6, 4.3.7, 4.3.8, 4.4, 5.3.5.1, 7.2, and 10.3.2.4l) to p). Note: Ductless fume hoods should not be considered acceptable substitutes for ducted fume hoods. They may be suitable alternatives provided there is an application-…

<!-- NEW! -->IEC 60034-5:2020 is available as <a href="https://webstore.iec.ch/publication/66995">IEC 60034-5:2020 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 60034-5:2020 applies to the classification of degrees of protection…

IEC 60034-5:2020 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 60034-5:2020 applies to the classification of degrees of protection provided by enclosures for rotating…

IEC 60034-5:2020 applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all other respects suitable for their intended use and which, from the point of view of materials and workmanship, ensure that the properties dealt with in this document are maintained under normal…

The purpose of IEC 63132-3:2020 is to establish, in a general way, suitable procedures and tolerances for the installation of a vertical Francis turbine or pump-turbine. This document presents a typical assembly and whenever the word “turbine” is used in this document, it refers to a vertical Francis turbine or a pump-turbine. There are many possible ways to assemble a unit. The size of the…