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IEC 61140:2016 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 61140:2016 applies to the protection of persons and livestock against electric shock. The intent is to give…

IEC TR 61000-4-37:2016 outlines a typical test procedure for harmonic analysis in systems comprising tests apparatus designed to comply with IEC 61000-4-7, and products designed to comply with IEC 61000-3-2 and/or IEC 61000-3-12. The test procedure is intended to provide a systematic guidance suitable for use by manufacturers, end users, independent test laboratories and other bodies, for the…

ISO 19027:2016 specifies basic configurations for communication support boards, which are necessary to facilitate communication. A variety of communication support boards can be designed for specific communication purposes. This International Standard specifies basic elements common to different types of formats/media, such as simple boards, book style or digital media. This International…

1.1 This International Standard specifies a method for the determination of the direction of twist in yarns, the amount of twist, in terms of turns per unit length, and the change in length on untwisting, by the direct counting method. 1.2 This International Standard is applicable to a) single yarns (spun and filament), b) plied yarns, and c) cabled yarns. Separate procedures are given for…

1 SCOPE 1.1 This Standard sets forth minimum requirements for emergency valves that are intended to be used for the control of flammable and combustible liquids which are handled at temperatures within the range of -40 °C to +50 °C. 1.2 The valves are of the type used in motor fuel dispensing equipment and associated piping systems. 1.3 Valves covered under these requirements are newly…

1 SCOPE 1.1 This Standard sets forth the minimum requirements for hose nozzle valves that are intended to be used to control the flow of flammable and combustible liquids. They are of the types used in motor fuel dispensing equipment. 1.2 Valves covered by this Standard are for use with flammable and combustible liquids which are handled at temperatures within the range of -40 °C to +50 °C at a…

1 Domaine d’application 1.1 Cette norme énonce les exigences relatives aux détecteurs de fumée et accessoires, y compris les dispositifs de protection mécaniques devant être utilisés dans des emplacements intérieurs ordinaires, conformément aux normes et aux codes suivants : Aux États-Unis : a) National Fire Alarm and Signaling Code, NFPA 72. Au Canada : b) Norme sur l’installation des…

1 Domaine d’application 1.1 La présente norme s’applique aux dispositifs à signal visuel prévus pour une installation intérieure ou extérieure : a) conformes, au Canada, à la norme CSA C22.1, Code canadien de l’électricité, première partie, Norme de sécurité relative aux installations électriques, et à la norme CAN/ULC-S524, Norme sur l’installation des systèmes d’alarme incendie. Pour…

1 Scope 1.1 This standard applies to visual signaling devices intended for indoor and/or outdoor installation: a) In Canada, in accordance with CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations; and with CAN/ULC S524, Standard for Installation of Fire Alarm Systems. Refer to CAN/ULC S525 Audible Signaling Devices for Fire Alarm and Signaling Systems,…

1.1 Requirements contained in this Standard cover controls of the light-sensitive or presence-sensitive types, or both; for indoor or outdoor service; intended for the control of indoor or outdoor loads up to a maximum of 20 A and maximum 347 V; intended for installations on 50 Hz or 60 HZ systems or DC up to 60 V (for US); and DC up to 42.4 V (for Canada); and intended to be installed in…