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

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2019-12-13DOD Approved: --
Price Code:EANSI Approved: 2019-12-13
Type:ulcsaiec

  • SCOPE

    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 scope of this standard are given in Annex a.

    NOTE 2 A RATED VOLTAGE of 600 V is considered to include equipment rated 400/690 V.

    This document is also applicable to:

    – components and subassemblies intended for incorporation in this equipment. Such components and subassemblies need not comply with every requirement of this document, provided that the complete equipment, incorporating such components and subassemblies, does comply;

    – external power supply units intended to supply other equipment within the scope of this document;

    – accessories intended to be used with equipment within the scope of this document;

    – large equipment installed in restricted access areas. For equipment having large machinery aspects, additional requirements may apply; and

    – equipment to be used in tropical regions.

    This document also includes requirements for audio/video, information and communication technology equipment intended to be installed in an outdoor location. The requirements for outdoor equipment also apply, where relevant, to outdoor enclosures suitable for direct installation in the field and supplied for housing audio/video, information and communication technology equipment to be installed in an outdoor location. See Annex Y for specific construction requirements not covered elsewhere in this document.

    This part of IEC 62328 specifies safeguards for ordinary persons, instructed persons, and skilled persons. Additional requirements may apply for equipment that is clearly designed or intended for use by children or specifically attractive to children.

    Each installation may have particular requirements. In addition, requirements for protection of the outdoor equipment against the effects of direct lightning strikes are not covered by this document.

    NOTE 3 For information on this subject, see IEC 62305-1.

    This document assumes a maximum altitude of 2 000 m unless otherwise specified by the manufacturer.

    Additional requirements for equipment having the capability to supply DC power over commonly used communication cables, such as USB or Ethernet (PoE), are given in IEC 62368-3. IEC 62368-3 does not apply to:

    – equipment supplying power using proprietary connectors; or

    – equipment using a proprietary protocol for power selection.

    This document specifies safeguards for ordinary persons, instructed persons, and skilled persons. Additional requirements may apply for equipment that is clearly designed or intended for use by children or specifically attractive to children.

    NOTE 4 In Australia, the work conducted by an instructed person or a skilled person may require formal licensing from regulatory authorities.

    NOTE 5 In Germany, in many cases a person may only be regarded as an instructed person or a skilled person if certain legal requirements are fulfilled.

    This document does not apply to:

    – equipment with non-self-contained hazardous moving parts, such as robotic equipment; and

    NOTE 6 For requirements related to robotic equipment in an industrial environment, see IEC 60204-1, IEC 60204-11, ISO 10218-1 and ISO 10218-2.

    – personal care robots, including mobile servant robots, physical assistant robots, and person carrier robots; and

    NOTE 7 For requirements related to personal care robots, see ISO 13482.

    – power supply systems that are not an integral part of the equipment, such as motor-generator sets, battery backup systems and distribution transformers.

    This document does not address:

    – manufacturing processes except for routine tests;

    – 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 as specified in Clause 7;

    – electrostatic discharge events;

    – environmental aspects;

    – requirements for functional safety.

    NOTE 8 For specific functional and software safety requirements of electronic safety-related systems (for example, protective electronic circuits), see IEC 61508-1.

    1DV.1 Modify this clause by adding the following text:

    1DV.1.1 This standard is applicable to equipment designed to be installed in accordance with the Canadian Electrical Code (CE Code), Part I, CSA C22.1-18; the National Electrical Code, NFPA 70-2017; and the National Electrical Safety Code, IEEE C2 2017.

    1DV.1.2 The standard is applicable to equipment, when identified by a marking or instruction [see Annex DVK (Annex DVA, Clause 1 entry)], designed to be installed in accordance with Article 645 of the National Electrical Code, NFPA 70-2017, and the Standard for the Protection of Information Technology Equipment, NFPA 75-2017.

    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 cabinets. See Annex DVC. 1DV.2.3 Additional requirements for equipment with DC power transfer through communication cables and ports are given in IEC 62368-3. IEC 62368-3 clause 5 for DC power transfer at ES1 or ES2 voltage levels is considered informative. IEC 62368-3 clause 6 for remote power feeding telecommunication (RFT) circuits is considered normative (see ITU K.50). Alternatively, equipment with RFT circuits are given in either UL 2391 or CSA/UL 60950-21. RFT-C circuits are not permitted unless the RFT-C circuit complies with RFT-V limits (≤ 200V per conductor to earth).

    1DV.2.3 Additional requirements for equipment with DC power transfer through communication cables and ports are given in IEC 62368-3. IEC 62368-3 clause 5 for DC power transfer at ES1 or ES2 voltage levels is considered informative. IEC 62368-3 clause 6 for remote power feeding telecommunication (RFT) circuits is considered normative (see ITU K.50). Alternatively, equipment with RFT circuits are given in either UL 2391 or CSA/UL 60950-21. RFT-C circuits are not permitted unless the RFT-C circuit complies with RFT-V limits (≤ 200V per conductor to earth).

    1DV.2.4 This standard does not cover Modular Data Centers (MDCs), only the information and communication technology equipment contained within.

    NOTE In the U.S., Modular Data Centers are covered by UL 2755, Modular Data Centers.

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

    NOTE 3 For information on this subject, see IEC 62305-1, NFPA 780 or CAN/CSA-B72.

    1DV.4 DC Modify Clause 1 by adding the following paragraph and Note:

    Battery backup systems including storage batteries and battery management equipment that are not an integral part of stationary AV and ICT equipment, such as provided in separate cabinets, are subject to the appropriate standard for battery backup systems, such as UL 1973, Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications.

    NOTE 9DV See Figures 1.1 and 1.2 of UL 1973 for more information on independent electric energy storage systems (EESS) covered by UL 1973, which can consist of both low voltage (class ES or ES2) and high voltage (class ES3) subsystems, battery management, thermal management, and related features and safeguards. When interconnected with AV, IT, and CT Equipment, and typically used in conjunction with an uninterruptible power supply (UPS), such EESS typically serve as a short-term substitution of the mains supply during power outages and similar disturbances.

    1DV.5 Add Clause 1DV.5.1 to Clause 1 :

    1DV.5.1 Power Distribution Equipment and Sub-Assemblies

    1DV.5.1.1 This standard also is applicable to power distribution subassemblies 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.5.1.2 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.5.1.3 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.5.1.4 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.5.1.2 and 1dv.5.1.3:

    –    For Industrial Control Equipment, see CSA C22.2 No. 14 and UL 508.

    –    For Panelboards, see CSA C22.2 No. 29 and UL 67.

    –    For Switchboards, see CSA C22.2 No 244 and UL 891.

    –    For Transfer Switch Equipment, see CSA C22.2 No 178.1 and UL 1008.

    –    For Uninterruptible Power Systems, see CSA C22.2 No. 107.3 and UL 1778.

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

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

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

    •    Cord connected Surge Protective Devices, see 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, see CSA C22.2 No. 21,  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, Part I, 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; or

    (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.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
    • Deviations
    • IEC Foreword
    • Introduction
      • AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT – Part 1: Safety requirements
        • 1 Scope
          • 1DV.5.1 Power Distribution Equipment and Sub-Assemblies
        • 2 Normative references
        • 3 Terms, definitions and abbreviations
          • 3.1 Energy source abbreviations
          • 3.2 Other abbreviations
          • 3.3 Terms and definitions
        • 4 General requirements
          • 4.1 General
          • 4.2 Energy source classifications
          • 4.3 Protection against energy sources
          • 4.4 Safeguards
          • 4.5 Explosion
          • 4.6 Fixing of conductors
          • 4.7 Equipment for direct insertion into mains socket-outlets
          • 4.8 Products containing lithium coin / button cell batteries
          • 4.9 Likelihood of fire or shock due to entry of conductive objects
        • 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
        • 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 Safeguards against fire due to the connection of additional equipment
          • 6.7DV.1 Safeguards against electrically-caused fire due to overvoltage from power line crosses
        • 7 Injury caused by hazardous substances
          • 7.1 General
          • 7.2 Reduction of exposure to hazardous substances
          • 7.3 Ozone exposure
          • 7.4 Use of personal safeguards (PPE)
          • 7.5 Use of instructional safeguards and instructions
          • 7.6 Batteries and their protection circuits
        • 8 Mechanically-caused injury
          • 8.1 General
          • 8.2 Mechanical energy source classifications
          • 8.3 Safeguards 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
          • 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 Safeguards against thermal energy sources
          • 9.4 Requirements for safeguards
        • 10 Radiation
          • 10.1 General
          • 10.2 Radiation energy source classifications
          • 10.3 Safeguards against laser radiation
          • 10.4 Safeguards against visible, infra-red, and ultra-violet radiation
          • 10.5 Safeguards against x-radiation
          • 10.6 Safeguards against acoustic energy sources