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IEC 62505-3-3:2020 is applicable to new voltage transformers which are: - intended for use in indoor or outdoor fixed installations in tractions systems, and - operated with an AC line voltage and frequency as specified in IEC 60850. This document also applies to voltage transformers other than inductive types as far as reasonably possible. Requirements of this document have priority. This…

This document, together with ISO 21138‑1, specifies the definitions and requirements for pipes with a non-smooth external surface and a smooth internal surface (Type B), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications…

1 Scope This part of IEC 62368 is applicable to the safety of electrical and electronic equipment within the field of audio, video, information and communication technology, and business and office machines with a RATED VOLTAGE not exceeding 600 V. This document does not include requirements for performance or functional characteristics of equipment. NOTE 1 Examples of equipment within the…

This document specifies safety requirements and measures for their verification for the design and construction of portable, hand-held, internal combustion engine-driven cut-off machines intended to be used by a single operator in the cutting of construction materials, such as asphalt, concrete, stone and metal. It is applicable only to those machines designed purposely for use with a rotating,…

IEC 61322:2020 applies to installed dose equivalent rate meters, warning assemblies and monitors, as defined below. It covers equipment intended to measure neutron radiation in dose equivalent rates in the energy region between thermal and 20 MeV for the purposes of radiation protection. Assemblies of this type are commonly defined as area radiation monitors. They are normally employed to…

IEC 63145-22-20:2020(E) specifies the standard measurement conditions and measuring methods for determining the see-through optical properties and imaging quality of augmented reality (AR) eyewear displays. This includes the transmission characteristics and ambient optical performance of the eyewear displays. Contact lens type displays are out of the scope of this document. NOTE The…

This standard describes a communication interface between a channel and I/O control units that utilize the Single-Byte Command Code Sets (SBCCS) as implemented in a wide range of data processing systems. It employs information formats and signaling protocols that provide a uniform means for communicating with various types of I/O control units, facilitating a high bandwidth, high performance, and…

This standard describes a communication interface between a channel and I/O control units that utilize the Single-Byte Command Code Sets (SBCCS) as implemented in a wide range of data processing systems. It employs information formats and signaling protocols that provide a uniform means for communicating with various types of I/O control units, facilitating a high bandwidth, high performance, and…

1 Scope 1.1 This Standard applies to decorative lighting strings, decorative lighting outfits, pre-lit trees, and accessories, intended for seasonal or commercial use connected to circuits of 120 V nominal or less by means of an attachment plug, and designed to be used in accordance with the rules of the Canadian Electrical Code, Part I, in non-hazardous locations. 1.2 These requirements…

1 Scope 1.1 This Standard applies to a) electrostatic air cleaners intended to remove dust and dirt from the air and intended for general indoor residential and commercial use; b) air ionizer type air cleaners; c) other similar ionizing equipment; and d) duct-mounted type electrostatic air cleaners, air ionizers, and other similar ionizing equipment intended for general indoor…