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    • Industrial Products (Hazloc, Energy and Power Equipment and Machinery) - Canadia
    • C22.2 NO. 107.3-05 (R2010)

    Codes & Standards - Purchase

    C22.2 NO. 107.3-05 (R2010)

    Uninterruptible Power Systems (Bi-National standard, with UL 1778)
    SKU: 2417694 Published by CSA Group Publication Year 2005 Reaffirmed in 2010 63 pages Withdrawn

    Product Details

    • Preface/Scope
    Preface

    This is the common CSA and UL Standard for uninterruptible power systems (UPS).

    It is the second edition of CSA C22.2 No. 107.3 and the fourth edition of UL 1778.

    This edition of CSA C22.2 No. 107.3 supersedes the previous edition published in 2003. This edition of UL 1778 supersedes the previous editions published in 2003, 1994, and 1989.

    Scope

    Replace this clause of the RD with the following:

    1.1.1 Equipment covered by this Standard

    This Standard applies to UNINTERRUPTIBLE POWER SYSTEMS (UPS). The primary function of the UPS for this Standard is to ensure continuity of an alternating power source. The UNINTERRUPTIBLE POWER SYSTEM may also serve to improve the quality of the power source by keeping it within specified characteristics. This Standard is applicable to movable, stationary, fixed, and built-in UPS for distribution systems up to 600 V a.c. This equipment is designed to be installed in accordance with the Canadian Electrical Code, Part I, CSA C22.1, or the National Electrical Code, ANSI/NFPA 70, and, unless otherwise identified, the Standard for the Protection of Electronic Computer Data-Processing Equipment, ANSI/NFPA 75. This Standard specifies requirements intended to ensure safety for the OPERATOR and, where specifically stated, for SERVICE PERSONNEL. This Standard is intended to reduce the risk of fire, electric shock, or injury to persons from installed equipment, both as a single unit or as a system of interconnected units, subject to installing, operating, and maintaining the equipment in the manner prescribed by the manufacturer.

    1.1.2 Additional requirements

    In addition to the requirements in this Standard, a UPS is to comply with the UPS-relevant requirements of CAN/CSA-C22.2 No. 60950-1/UL 60950-1, first edition, Information Technology Equipment Safety - Part 1: General requirements (RD), as applicable for the country where the product will be used.

    Wherever there is a conflict between the requirements of this document and the RD, the requirements of this Standard will prevail. Engine-driven d.c. power generators intended to provide backup power for the battery supply circuit of UPS units are investigated for compliance with the requirements of the Standard for Stationary Engine-Generator Assemblies, UL 2200, and the CSA Standard for Motors and Generators, C22.2 No. 100. UPS that employ hospital grade components identified by the markings Hospital Only, Hospital Grade, or a green dot on the body of the component, or otherwise implying suitability for medical use, are evaluated to the requirements of this Standard and CAN/CSA-C22.2 No. 601.1/UL 60601-1, Medical Electrical Equipment - Part 1: General Requirements for Safety.

    1.1.3 Exclusions

    These requirements do not cover UPS units for use as emergency systems or as legally required standby systems, described in Articles 700 and 701, respectively, of the National Electrical Code, ANSI/NFPA 70, and Section 46 of the Canadian Electrical Code, Part I, CSA C22.1. Where considered appropriate, revision of requirements will be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard.

    NOTE 1 For equipment subject to transient overvoltages exceeding those for Category II according to IEC 60664, additional protection might be necessary. Such additional protection may be located in the mains supply to the equipment or in the equipment as an integral design feature.

    NOTE 2 Where the additional protection is an integral part of the equipment insulation requirements, CREEPAGE DISTANCES and CLEARANCE distances from the mains through to the load side of the additional protection may be judged as Category III or IV as required. All insulation requirements, CREEPAGE DISTANCES, and CLEARANCE distances on the load side of the additional protection may be judged as Category I or II as required. This Standard does not cover all types of UPS, but it may be taken as a guide for such equipment. Requirements additional to those specified in this Standard are in some cases necessary for specific applications, e.g.: a) equipment intended for operation while exposed, for example, to extremes of temperature; to excessive dust, moisture, or vibration; to flammable gases; to corrosive or explosive atmospheres; and b) UPS equipment based on rotary machinery.
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