UL 486C
Splicing Wire Connectors

DETAILS
Edition Number:6SCC Approved:--
Edition Date:2013-01-11DOD Approved: 1992-01-28
Price Code:BANSI Approved: 2016-01-20
Type:ulcsance

  • SCOPE

    1 Scope

    1.1 This Standard applies to single-polarity, hand- or tool-applied splicing wire and cable connectors intended for use with all alloys of copper, aluminum conductors, or copper-clad aluminum conductors, or all three, in accordance with the Canadian Electrical Code Part I, C22.1, in Canada, the National Electrical Code, NFPA-70, in the United States of America, or the Standard for Electrical Installations, NOM-001-SEDE, in Mexico, as follows:

    Note: Copper-clad aluminum conductors are for use only in the United States in accordance with the National Electrical Code, NFPA 70.

    a)    connectors intended to hold two or more conductor(s);

    b)    connectors intended for use in appliances and equipment that comply with the requirements for such appliances and equipment;

    c)    connectors intended for use with 6 AWG (13.3 mm2) or smaller conductors; and

    d)    uninsulated connectors that are used in circuits rated 8 000 V and less.

    Note: Examples of splicing wire connectors include twist-on connectors, insulation-piercing or displacement connectors, spring-action connectors, tool-applied crimp, mechanical set-screw connectors, etc.

    1.2 This Standard is intended for splicing wire connectors suitable for use with conductors in the size ranges as follows:

    a)    Aluminum:

    1)    12 AWG (3.3 mm2) and 10 AWG (5.3 mm2) solid;

    2)    12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and compact; and

    3)    12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded single input wire (SIW).

    In Mexico, the use of aluminum conductors is permitted only with thermoset insulation and for sizes of 6 AWG (13.3 mm2) and higher.

    b)    Copper-clad aluminum:

    1)    In Canada, this construction is not allowed.

    2)    In Mexico, this construction is not allowed.

    3)    In the United States:

    i)    12 AWG (3.3 mm2) and 10 AWG (5.3 mm2) solid; and

    ii)    12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and Class C concentric.

    c)    Copper:

    1)    30 AWG (0.05 mm2) to 10 AWG (5.3 mm2) solid; and

    2)    30 AWG (0.05 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric and compressed, and Class C concentric.

    d)    Compact-stranded copper conductors:

    In Canada and Mexico, for 8 AWG (8.4 mm2) and 6 AWG (13.3 mm2).

    In the United States this is not applicable.

    e)    Rigid (solid and stranded) metric wire falling within the ranges of the above AWG sizes.



    Note: For example, a connector rated for 6 AWG (13.3 mm2) – 14 AWG (2.1 mm2) may be additionally rated for 10 – 2.5 mm2.

    f)    Other class and strand configurations as indicated by marking.

    1.3 These requirements cover splicing wire connectors intended for:

    a)    copper-to-copper;

    b)    aluminum-to-aluminum;

    c)    copper-clad aluminum-to-copper-clad aluminum;

    d)    copper-to-aluminum or copper-clad aluminum and aluminum-to-copper-clad aluminum conductor combinations intended for intermixing of conductors and dry locations only; or

    e)    all of the above.

    1.4 This Standard is intended for splicing wire connectors suitable for currents not exceeding the ampacity of insulated conductors rated 75 °C or 90 °C, in accordance with the rating of the connector.

    1.5 This Standard does not apply to:

    a)    insulated splicing wire connectors intended for use at voltage levels in excess of 600 V [1 000 V in a sign or luminaire];

    b)    terminal wire connectors;

    c)    wire binding screw terminals;

    d)    built-in terminal connectors on devices rated less than 30 A and intended for outlet box mounting or having provision for stress relief;

    e)    built-in terminal connectors on devices having integral cable clamps;

    f)    flat quick connect terminals; and

    g)    soldering lugs.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Body
        • 1 Scope
        • 2 Reference publications
          • 2.1 Normative references
          • 2.2 Informative references
        • 3 Units of measure
        • 4 Definitions
        • 5 Symbols and abbreviations
        • 6 Construction requirements
          • 6.1 General
          • 6.2 Intermixing
          • 6.3 Materials
        • 7 Test requirements
          • 7.1 General
          • 7.2 Current cycling
          • 7.3 Static-heating sequence
          • 7.4 Mechanical sequence
          • 7.5 Dielectric-withstand test sequence
          • 7.6 Secureness of insulation
          • 7.7 Flexing
          • 7.8 Low temperature installation
          • 7.9 Moisture absorption
          • 7.10 Stress corrosion/moist ammonia (NH)
          • 7.11 Stress corrosion/mercurous nitrate (HgNO)
          • 7.12 Spring action
          • 7.13 Over-torque
          • 7.14 Separable part securement
        • 8 Sampling requirements
          • 8.1 General
          • 8.2 Current cycling
          • 8.3 Static-heating sequence
          • 8.4 Mechanical sequence
          • 8.5 Dielectric withstand
          • 8.6 Secureness of insulation
          • 8.7 Flexing
          • 8.8 Low temperature installation
          • 8.9 Moisture absorption
          • 8.10 Stress corrosion/moist ammonia (NH)
          • 8.11 Stress corrosion/mercurous nitrate (HgNO)
          • 8.12 Spring-action sequence
          • 8.13 Over-torque
          • 8.14 Separable part securement
        • 9 Test methods
          • 9.1 General
          • 9.2 Current cycling
          • 9.3 Static-heating sequence
          • 9.4 Mechanical sequence
          • 9.5 Dielectric withstand
          • 9.6 Secureness of insulation
          • 9.7 Flexing
          • 9.8 Low temperature installation
          • 9.9 Moisture absorption
          • 9.10 Stress corrosion/moist ammonia (NH)
          • 9.11 Stress corrosion/mercurous nitrate (HgNO)
          • 9.12 Spring-action sequence
          • 9.13 Over-torque
          • 9.14 Separable part securement
        • 10 Marking, labeling, and packaging
    • Annex A – Informative references
    • Annex B – Flammability test (material V-2 and VTM-2)
    • Annex C – Example of stability factor calculation
    • Annex D – Example of applying and
    • Annex E – Example of applying
    • Annex F – Marking Locations Guide