UL 6500
Standard for Audio/Video and Musical Instrument Apparatus for Household, Commercial, and Similar General Use

Edition Number:2SCC Approved:--
Edition Date:1999-09-30DOD Approved: --
Price Code:FANSI Approved: --


    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 used exclusively in combination with the above mentioned apparatus. This standard concerns only safety aspects of the above apparatus; it does not concern other matters, such as style or performance.

    For above-mentioned apparatus, which are fed from a supply source other than the MAINS or from a SUPPLY APPARATUS , and which contain a LASER SYSTEM or produce an internal OPERATING VOLTAGE greater than 4000 V (peak), this standard applies as far as applicable.

    NOTE 1 – In Australia, Canada, Denmark, Japan, Rumania, South Africa, United States of America and United Kingdom this standard is, where relevant, used as a guide for the testing of battery operated apparatus.

    This standard applies to the above-mentioned apparatus, if it is designed to be connected to the TELECOMMUNICATION NETWORK or similar network, for example by means of an integrated modem.

    Some examples of apparatus within the scope of this standard are:

    –     receiving apparatus and amplifiers for sound and/or vision;


    –     SUPPLY APPARATUS intended to supply other apparatus covered by the scope of this standard;

    –     ELECTRONIC MUSICAL INSTRUMENTS , and electronic accessories such as rhythm generators, tone generators, music tuners and the like for use with electronic or non-electronic musical instruments;

    –     audio and/or video educational apparatus;

    –     video projectors;

    –     video cameras and video monitors;

    –     household video games and flipper games;

    NOTE 2 – Video and flipper games for commercial use are covered by IEC 60335-2-82 [7]* UL 22

    *Figures in square brackets refer to the bibliography given in annex p.

    –     juke boxes;

    –     household electronic gaming and scoring machines;

    NOTE 3 – Electronic gaming and scoring machines for commercial use are covered by IEC 60335-2-82 [7] UL 22

    –     teletext equipment;

    –     record and optical disc players;

    –     tape and optical disc recorders;

    –     antenna signal converters and amplifiers;

    –     satellite receiver antenna positioners;

    –     Citizen's Band apparatus;

    –     apparatus for IMAGERY ;

    –     light effect apparatus;

    –     intercommunication apparatus, using low voltage MAINS as the transmission medium.

    –    video apparatus intended for entertainment purposes in health-care facilities;

    –    cellular phones, wireless modems, and similar transceiving devices;

    –    audio or video apparatus that are used with a battery supply.

    MAINS connected apparatus covered by this standard is intended for installation in compliance with the National Electrical Code, ANSI/NFPA 70.

    Any undated reference to a code or a standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.

    1.1.2 This standard applies to apparatus with a RATED SUPPLY VOLTAGE not exceeding:

    –     250 V a.c. single phase or d.c. supply,

    –     433 V a.c. in the case of apparatus for connection to a supply other than single phase.

    1.1.3 This standard applies to apparatus for use at altitudes not exceeding 2000 m above sea level, primarily in dry locations and in regions with moderate or tropical climates.

    For apparatus with protection against splashing water intended for outdoor use, additional requirements are given in annex a.

    For apparatus to be connected to TELECOMMUNICATION NETWORKS , additional requirements are given in annex b.

    For apparatus intended to be used in vehicles, ships or aircraft, or at altitudes exceeding 2000 m above sea level, additional requirements may be necessary.

    Requirements, additional to those specified in this standard, may be necessary for apparatus intended for special conditions of use.

    1.1.4 For apparatus designed to be fed from the MAINS, this standard applies to apparatus intended to be connected to a MAINS supply with transient overvoltages not exceeding overvoltage category II according to IEC 60664-1.

    For apparatus subject to transient overvoltages exceeding those for overvoltage category II, additional protection may be necessary in the MAINS supply of the apparatus.

    1.1.5 This standard does not apply to the following apparatus, except where this standard is referenced in the relevant standard:

    –     apparatus falling within the scope of IEC 60950,

    –     dictation apparatus,

    –     projectors not mentioned in 1.1.1, for example film projectors, slide projectors, overhead projectors, epidiascopes. (See IEC 60335-2-56 [6].)

    1.1.6 Certain apparatus covered by the requirements in this standard are also required to comply with applicable requirements in other appropriate standards because of their intended end use applications or environmental conditions.

    1.1.6 revised August 15, 2001

    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Introduction
    • UL Preface
    • UL Foreword
    • Deviations
    • IEC Foreword
    • IEC Preface
    • IEC Introduction
        • 1 General
          • 1.1 Scope
          • 1.2 Normative references
        • 2 Definitions
          • 2.1 Definitions in alphabetical order
          • 2.2 Types of apparatus
          • 2.3 Ratings and electrical values
          • 2.4 Supply and external connections
          • 2.5 Signals, sources, loads
          • 2.6 Protection against electric shock, insulations
          • 2.7 Components
          • 2.8 Miscellaneous
        • 3 General requirements
        • 4 General test conditions
          • 4.1 Conduct of tests
          • 4.2 Normal operating conditions
          • 4.3 Fault conditions
        • 5 Markings and instructions
          • 5.1 Identification and supply ratings
          • 5.2 TERMINALS
          • 5.4 Instructions
        • 6 Hazardous radiations
          • 6.1 Ionizing radiation
          • 6.2 Laser radiation
        • 7 Heating under normal operating conditions
          • 7.1 General
          • 7.2 Heat resistance of insulating material
        • 8 Constructional requirements with regard to the protection against electric shock
        • 9 Electric shock hazard under normal operating conditions
          • 9.1 Testing on the outside
          • 9.2 Removal of protective covers
        • 10 Insulation requirements
          • 10.1 Surge test
          • 10.2 Humidity treatment
          • 10.3 Insulation resistance and dielectric strength
        • 11 Fault conditions
          • 11.1 Electric shock hazard
          • 11.2 Heating
        • 12 Mechanical strength
          • 12.1 Complete apparatus
          • 12.2 Fixing of actuating elements
          • 12.3 REMOTE CONTROL devices held in hand
          • 12.4 Drawers
          • 12.5 Antenna coaxial sockets mounted on the apparatus
          • 12.6 Telescoping or rod antenna
          • 12.7 Wall or ceiling mounting means
          • 13.1 General
          • 13.2 CLEARANCES and CREEPAGE DISTANCES: dimensions
        • 14 Components
          • 14.1 Resistors
          • 14.2 Capacitors and RC-units
          • 14.3 Inductors and windings
          • 14.4 High voltage components and assemblies
          • 14.5 Protective devices
          • 14.6 Switches
          • 14.7 SAFETY INTERLOCKS
          • 14.8 Voltage setting devices and the like
          • 14.9 Motors
          • 14.10 Batteries
          • 14.11 Optocouplers
        • 15 TERMINALS
          • 15.1 Plugs and sockets
          • 15.2 Provisions for protective earthing
          • 15.3 TERMINALS for external flexible cords and for permanent connection to the MAINS supply
          • 15.4 Devices forming a part of the MAINS plug
        • 16 External flexible cords
        • 17 Electrical connections and mechanical fixings
        • 18 Mechanical strength of picture tubes and protection against the effects of implosion
          • 18.2 Intrinsically protected picture tubes, including those having integral protective screens
          • 18.3 Non-intrinsically protected picture tubes
        • 19 Stability and mechanical hazards
          • 19.4.1 Fragmentation test
          • 19.5 Rack mounting test
        • 20 Resistance to fire
          • 20.1 Electrical components and mechanical parts
          • 20.2 Fire enclosure
    • Annex A(normative) Additional requirements for apparatus for outdoor use and wet locations
    • Annex B(normative) Apparatus to be connected to the TELECOMMUNICATION NETWORKS
    • Annex C (normative) Band-pass filter for wide-band noise measurement (Extract of IEC 60268-1)
    • Annex D DR(normative) Measuring network for TOUCH CURRENTS
    • Annex E(normative) Measurement of CLEARANCES and CREEPAGE DISTANCES
    • Annex F(normative) Table of electrochemical potentials
    • Annex H  DU(normative) Safety requirements for video apparatus for use in health care facilities
    • Annex I  DU(normative) Safety requirements for undercabinet apparatus
    • Annex J  DU(normative) Safety requirements for in-wall mounted apparatus
    • Annex K  DU(normative) Safety requirements for apparatus with projection lamps
    • Annex L  DU(normative) Safety requirements for permanently connected apparatus
    • Annex M  DU(normative) Safety requirements for carts, stands, and similar apparatus for use with specific apparatus covered by this standard
    • Annex N(informative) ROUTINE TEST
    • Annex O  DEReserved for future use
    • Annex P(informative) Bibliography
    • Annex Q  DU(informative) A 0.02-ohm shunt for use in the peak inrush-current measurement described in
    • Annex R  DU(normative) Manufacturing and production-line tests and verifications
    • Annex S  DC(normative) Standards for components
    • Annex T DU(normative) Safety requirements for coin/button cell batteries
    • Annex U DE(informative)Index