Rechercher

This National Standard of canada is based on International Standard IEC 60950, and is joint with UL 60950. 1 General 1.1 Scope 1.1.1 Equipment covered by this standard This standard is applicable to mains-powered or battery-powered information technology equipment, including electrical business equipment and associated equipment, with a RATED VOLTAGE not exceeding 600 V and designed…

1. Scope 1.1 This Standard specifies energy efficiencies for liquid-filled distribution transformers. The Total Ownership Cost(TOC) methodology is recommended as the means for achieving these energy efficiencies, particularly for use by electric utilities. This Standard also specifies an optimal method for nonutility users, based on a modified TOC methodology that meets the conditions of energy…

This National Standard of Canada is based on International Standard CEI/IEC 60065:1998 1.1 Scope 1.1.1 This International Standard applies to electronic apparatus designed to be fed from the MAINS or from a SUPPLY APPARATUS and intended for reception, generation, recording or reproduction respectively of audio, video and associated signals. It also applies to apparatus designed to be…

1. Scope 1.1 The requirements of this Standard apply to manually operated, general-use snap switches for connection to copper (Cu) or copper-clad conductors used in accordance with the National Electrical Code (NEC), ANSI/NFPA 70, or the Canadian Electrical Code (CEC), Part 1, and intended for connection to wiring systems recognized by the NEC or the CEC, Part 1. In Canada, requirements for…

1. Scope 1.1 General This Standard provides the requirements for materials and methods of construction for cast-in-place concrete and concrete precast in the field. Notes: (1) Requirements for the design of concrete structures are provided in CSa Standards A23.3 and S6. Design of some specialty concrete products is described in separate CSA Standards. (2) Methods of test for concrete are…

This National Standard of Canada is based on International Standard CEI/IEC 60855: 1985. 1. Scope This standard is applicable to insulating foam-filled tubes and solid rods made of synthetic materials and intended for tools and equipment for live work on systems operating at voltages above 1 kV. Separate special technical standards give details of tests for fittings and attachments to…

This National Standard of Canada is based on International Standard CEI/IEC 60984: 1990. 1. SCOPE This international standard is applicable to insulating sleeves for the protection of workers from accidental contact with live electrical conductors, apparatus or circuits. 1.1 Five classes of sleeve, differing in electrical characteristics, are provided and designated as: Class 0,…

1.1 Scope 1.1.1 This Standard applies to low-voltage fuses rated 1000 V or less, Ac and/or DC, with interrupting ratings up to 200 kA. These fuses are intended to be used in accordance with the Canadian Electrical Code, Part I (CEC), and the National Electrical Code, NFPA 70 (NEC). 1.2 Object 1.2.1 This Standard and its subsequent Parts establish the characteristics, construction…

1 General Note - This Part is intended to be read together with the Standard for Low-Voltage Fuses - Part 1: General Requirements, hereafter referred to as Part 1. The numbering of the Clauses in this Part corresponds to like numbered Clauses in Part 1. The requirements of Part 1 apply unless modified by this Part. For Clauses not shown below, refer to the Standard for Low-Voltage…

This part of ISO 9330 specifies the technical delivery conditions for submerged arc-welded tubes of circular crosssection, made of unalloyed or alloyed steel with specified elevated temperature properties. These tubes are intended for pressure purposes in cases when the material is also subjected to elevated temperatures, e.g. for the construction of steam generating equipment and for…