UL 62368-1
Audio/video, information and communication technology equipment - Part 1: Safety requirements

Edition Number:1SCC Approved:--
Edition Date:2012-02-17DOD Approved: --
Price Code:EANSI Approved: 2012-02-17


    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 standard does not include requirements for performance or functional characteristics of equipment.

    NOTE 1 Examples of equipment within the scope of this standard are given in Annex a.

    This part of IEC 62368 is also applicable to components and subassemblies intended for incorporation in this equipment. Such components and subassemblies need not comply with every requirement of the standard, provided that the complete equipment, incorporating such components and subassemblies, does comply.

    This standard specifies safeguards for ordinary persons, instructed persons, and skilled persons.

    NOTE 2 In Australia, the work conducted by an instructed person or a skilled person may require formal licensing from regulatory authorities.

    This standard assumes an altitude of 2 000 m unless specified otherwise by the manufacturer.

    This standard does not apply to equipment to be used in wet areas. Additional requirements may apply.

    This standard does not apply to equipment for outdoor installation.

    NOTE 3 Information and communication technology equipment that is intended for use outdoors is covered by IEC 60950-22.

    This standard does not include requirements for functional safety.

    NOTE 4 For specific functional and software safety requirements of electronic safety-related systems (for example, protective electronic circuits), see IEC 61508-1.

    This standard does not address:

    – manufacturing processes except safety testing;

    – injurious effects of gases released by thermal decomposition or combustion;

    – disposal processes;

    – effects of transport (other than as specified in this standard);

    – effects of storage of materials, components, or the equipment itself;

    – the likelihood of injury from particulate radiation such as alpha particles and beta particles;

    – the likelihood of thermal injury due to radiated or convected thermal energy;

    – the likelihood of injury due to flammable liquids;

    – the use of the equipment in oxygen-enriched or explosive atmospheres;

    – exposure to chemicals other than those specified in Clause 7;

    – electrostatic discharge events.

    1DV.1 Modify Clause 1 by adding the following text:

    1DV.1.1 This standard also is applicable to equipment designed to be installed in accordance with the Canadian Electrical Code, Part I, C22.1-09; Canadian Electrical Code, Part II, General Requirements, CAN/CSA C22.2 No. 0-10; the National Electrical Code, NFPA 70-2011; and the National Electrical Safety Code, IEEE C2-2007.

    1DV.1.2 The standard is also applicable to equipment, when identified by a marking or instruction [see Annex dvk (Annex DVA, Clause 1)], designed to be installed in accordance with Article 645 of the National Electrical Code, NFPA 70-2011, and the Standard for the Protection of Information Technology Equipment, NFPA 75-2009.

    1DV.1.3 See Annex dva for requirements and references to regulatory requirements that apply to this equipment, as applicable.

    1DV.2 Modify Clause 1 by adding the following text:

    1DV.2.1 This standard includes additional requirements for equipment used for entertainment purposes intended for installation in general patient care areas of health care facilities. See Annex dvb.

    1DV.2.2 This standard includes additional requirements for equipment intended for mounting under kitchen cabinets. See Annex dvc.

    1DV.2.3 This standard does not apply to equipment having Remote Feeding Telecommunication (RFT) circuits. Equipment having RFT circuits is covered by CSA/UL 60950-21.

    1DV.2.4 Additional requirements may apply to large data storage equipment. Refer to CSA/UL 60950-23.

    1DV.3 Modify Clause 1 by replacing the sixth paragraph and Note 3 with the following:

    1DV.3.1 For equipment intended for outdoor installation, additional requirements may apply.

    NOTE 3 Information and communication technology equipment that is intended for use outdoors is covered by CSA/UL 60950-22. Audio/video equipment that is intended for use outdoors is covered by the relevant requirements in CSA C22.2 No. 60065 or UL 60065.

    1DV.4 Modify Clause 1 by adding the following text:

    1DV.4.1 Power Distribution Equipment and Sub-Assemblies

    1DV.4.1.1 This standard also is applicable to power distribution sub-assemblies connected to a mains used to distribute power entirely within a system of equipment also covered by this standard, such as power distribution units (PDUs) in the form of cord-connected power strips and shelves with multiple power outlets (receptacles) and intended to be installed in system racks, cabinets, home entertainment centers, etc.

    1DV.4.1.2 For equipment covered by this standard that incorporates components and sub-assemblies that perform a power distribution and control function covered by other standards, such as panelboards, load transfer equipment, or uninterruptible power systems utilized in power conditioners and computer power centers, this standard only may be used for investigation of safety for those aspects not covered by the other standards.

    1DV.4.1.3 This standard also does not apply to stand-alone equipment used for distribution of mains power that is covered by individual power distribution equipment standards.

    1DV.4.1.4 Based on the specific function, the following requirements are applicable to the stand-alone distribution equipment, or apply additionally to power distribution sub-assemblies and components of equipment covered by this standard, as described in 1dv.4.1.2 and 1dv.4.1.3:

    –    For Industrial Control Equipment, see CSA C22.2 No. 14-10 Eleventh Edition and UL 508 Seventeenth Edition.

    –    For Panelboards, see CSA C22.2 No. 29-11 Fifth Edition and UL 67 Twelfth Edition.

    –    For Switchboards, see CSA C22.2 No 244-05 First Edition and UL 891 Eleventh Edition.

    –    For Transfer Switch Equipment, see CSA C22.2 No 178.1-07 First Edition and UL 1008 Fifth Edition.

    –    For Uninterruptible Power Systems, see CSA C22.2 No. 107.3-05 Second Edition and UL 1778 Fourth Edition.

    –    For Power Distribution Centers for Communications Equipment, see UL Subject 1801.

    –    Other forms of power distribution units for general applications, such as,

    •    Relocatable Power Taps, CSA-C22.2 No. 21-1995, Cord Sets and Power Supply Cords, and UL 1363, Relocatable Power Taps.

    •    Cord connected Surge Protective Devices, CSA Technical Information Letter No. A-24, Interim Certification Requirements for AC Line Connected Wiring Devices with Varistors, and UL 1449, Surge Protective Devices.

    •    Furniture Power Distribution Units, CSA-C22.2 No. 21-1995, Cord Sets and Power Supply Cords and UL 962A, Furniture Power Distribution Units.

    NOTE 1 It is assumed that power distribution equipment covered by the scope of this Standard is interconnected to the “Outlet” of a “Branch Circuit” as defined in Section 0 of the CEC and Article 100 of the NEC. In the case of cord-connected equipment, the Outlet is the Receptacle associated with the building wiring. In the case of permanently connected equipment, the Outlet is the interface between the Branch Circuit conductors associated with the building wiring and the input terminals, pressure connectors, or leads associated with the power distribution equipment covered in whole or part by this standard.

    NOTE 2 The following are common definitions of the hardware with related functions that require additional investigation to the appropriate Canadian and U.S. standards.

    Industrial Control Panel – An assembly of two or more components consisting of one of the following:

    (1)    Power circuit components only, such as motor controllers, overload relays, fused disconnect switches, and circuit breakers

    (2)    Control circuit components only, such as pushbuttons, pilot lights, selector switches, timers, switches, control relays

    (3)    A combination of power and control circuit components

    These components, with associated wiring and terminals, are mounted on or contained within an enclosure or mounted on a subpanel. The industrial control panel does not include the controlled equipment.

    Panelboard – A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices, and equipped with or without switches for the control of light, heat, or power circuits; designed to be placed in a cabinet or cutout box placed in or against a wall, partition, or other support; and accessible only from the front.

    Switchboard – A large single panel, frame, or assembly of panels on which are mounted on the face, back, or both, switches, overcurrent and other protective devices, buses, and usually instruments. Switchboards are generally accessible from the rear as well as from the front and are not intended to be installed in cabinets.

    Transfer Switch – An automatic or nonautomatic device for transferring one or more load conductor connections from one power source to another.

    Uninterruptible Power Supply – A power supply used to provide alternating current power to a load for some period of time in the event of a power failure.

    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
    • Deviations
    • IEC Foreword
    • Introduction
        • 1 Scope
          • 1DV.4.1 Power Distribution Equipment and Sub-Assemblies
        • 2 Normative references
        • 3 Terms, definitions and abbreviations
          • 3.1 General
          • 3.2 Terms and abbreviations
          • 3.3 Terms and definitions
        • 4 General requirements
          • 4.1 General
          • 4.1.16DV.1 Mains connections
          • 4.1.17DV.1 External interconnecting cable and wiring
          • 4.2 Energy source classifications
          • 4.3 Protection against energy sources
          • 4.4 Safeguards
          • 4.5 Explosion
        • 5 Electrically-caused injury
          • 5.1 General
          • 5.2 Classification and limits of electrical energy sources
          • 5.3 Protection against electrical energy sources
          • 5.4 Insulation materials and requirements
          • 5.5 Components as safeguards
          • 5.6 Protective conductor
          • 5.7 Prospective touch voltage, touch current and protective conductor current
          • Limitation of touch current due to ringing signals
        • 6 Electrically-caused fire
          • 6.1 General
          • 6.2 Classification of power sources (PS) and potential ignition sources (PIS)
          • 6.3 Safeguards against fire under normal operating conditions and abnormal operating conditions
          • 6.4 Safeguards against fire under single fault conditions
          • 6.5 Internal and external wiring
          • 6.6 Likelihood of fire due to entry of foreign objects
          • 6.7 Safeguards against fire due to the connection of secondary equipment
          • 6.8DV.1 Safeguards against electrically-caused fire due to overvoltage from power line crosses
        • 7 Chemically-caused injury
          • 7.1 General
          • 7.2 Reduction of exposure to hazardous chemicals
          • 7.3 Ozone exposure
          • 7.4 Use of PPE
          • 7.5 Use of instructional safeguards and instructions
          • 7.6 Batteries
        • 8 Mechanically-caused injury
          • 8.1 General
          • 8.2 Mechanical energy source classifications
          • 8.3 Protection against mechanical energy sources
          • 8.4 Safeguards against parts with sharp edges and corners
          • 8.5 Safeguards against moving parts
          • 8.6 Stability of equipment
          • 8.7 Equipment mounted to a wall or ceiling
          • 8.8 Handle strength test method
          • 8.9 Wheels or casters attachment requirements
          • 8.10 Carts, stands, and similar carriers
          • 8.11 Mounting means for rack mounted equipment
          • 8.12 Telescoping or rod antennas
        • 9 Thermal burn injury
          • 9.1 General
          • 9.2 Thermal energy source classifications
          • 9.3 Protection against thermal energy sources
          • 9.4 Requirements for safeguards
        • 10 Radiation
          • 10.1 General
          • 10.2 Radiation energy source classifications
          • 10.3 Requirements for electromagnetic radiation
          • 10.4 Protection against acoustic energy sources
    • Annex A(informative)
    • Annex B(normative)
    • Annex C(normative)
    • Annex D(normative)
    • Annex E(normative)
    • Annex F(normative)Equipment markings, instructions, and instructional safeguards
    • Annex G (normative)
    • Annex H (normative) Criteria for telephone ringing signals
    • Annex I (informative) Overvoltage categories(see IEC 60364-4-44)
    • Annex J (normative) Insulated winding wires for use without interleaved insulation
    • Annex K (normative) Safety interlocks
    • Annex L (normative) Disconnect devices
    • Annex M (normative) Batteries and fuel cells
    • Annex N (normative) Electrochemical potentials
    • Annex O (normative) Measurement of creepage distances and clearances
    • Annex P (normative) Safeguards against entry of foreign objects, foreign liquids, and spillage of internal liquids
    • Annex Q (normative) Interconnection with building wiring
    • Annex R (normative) Limited short-circuit test
    • Annex S (normative) Tests for resistance to heat and fire
    • Annex T (normative) Mechanical strength tests
    • Annex U (normative) Mechanical strength of CRTs and protection against the effects of implosion
    • Annex V (normative) Determination of accessible parts
    • Annex W (informative) Comparison of terms introduced in this standard
    • Bibliography
    • Annex DVA(normative)Canadian and U.S. regulatory-based requirements
    • Annex DVB(normative)Equipment used in health care facilities
    • Annex DVC(normative)Under kitchen cabinet equipment
    • Annex DVD(informative)D.C. powered equipment and centralized d.c. power systems (DC mains)
    • Annex DVE(normative)UL and CSA component requirements (mandatory)
    • Annex DVF(normative)UL and CSA component requirements (alternative to IEC standards)
    • Annex DVG(normative)UL and CSA component requirements (alternative)
    • Annex DVH(normative)Permanently connected equipment – mains connections
    • Annex DVI(normative)Safeguards against electrically-caused fire due to overvoltage from power line crosses
    • Annex DVJ (normative)Acoustic tests for telecommunications equipment
    • Annex DVK(normative)Canadian and U.S. marking and instructions