UL 444
Communications Cables

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2017-01-20DOD Approved: 1987-06-12
Price Code:BANSI Approved: 2017-01-20
Type:ulcsa

  • SCOPE

    1 Scope

    1.1 This standard applies to 60 – 250°C single- or multiple-conductor jacketed or unjacketed, integral or nonintegral cables and single or multiple coaxial cables for telephone and other communication circuits such as voice, data, and audio for on-premise customer systems. These cables are may contain one or more optical fibre members. For the purpose of this standard, a coaxial cable or coaxial member conductor is a single conductor with a shield. For the purpose of this standard, a single- or multiple-conductor unjacketed cable is a cross-connect wire.

    1.2 This standard applies to communications cables that are intended primarily for installation in accordance with Section 60 of the Canadian Electrical Code Part I, and Article 800 of the National Electrical Code (NEC), ANSI/NFPA 70. They are rated for 300 V applications, but are not so marked.

    Note: See Annex a for a complete list of wire types covered by this Standard and the specific electrical codes for which they are intended.

    1.3 This standard does not apply to communications cords.

    1.4 In Canada, the Type "-CI" circuit integrity markings are not recognized by the Canadian Electrical Code, Part I.

    In the US, Type CMH is not recognized in the NEC.

    1.5 If a value for measurement is followed by a value in other units in parenthesis, the second value may be only approximate. The first stated value is the requirement.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Body
        • Communications Cables
          • 1 Scope
          • 2 Reference publications
          • 3 Definitions
          • 4 General Requirements
          • 5 Construction
            • 5.1 Conductors
            • 5.2 Insulation
            • 5.3 Optical fibre members
            • 5.4 Core assembly
            • 5.5 Defective pairs
            • 5.6 Spare pairs
            • 5.7 Core binders
            • 5.8 Core wrap
            • 5.9 Shields
            • 5.10 Jackets
            • 5.11 Metallic covering
            • 5.12 Metallic messenger
          • 6 Manufacturing and Production Tests
            • 6.1 Spark test after insulating
            • 6.2 Continuity
            • 6.3 Dielectric strength
          • 7 Capability Tests
            • 7.1 Corrosion resistance of uncoated copper conductors
            • 7.2 Crush resistance of insulation
            • 7.3 Insulation unaged and heat-aged requirements
            • 7.4 Insulation shrinkback
            • 7.5 Insulation cold bend
            • 7.6 AC leakage current through overall jacket
            • 7.7 Durability of printing
            • 7.8 Unaged and heat-aged requirements of jacket
            • 7.9 Flexibility (PVDF jackets rated 125°C only)
            • 7.10 Cable cold bend
            • 7.11 Jacket peel test
            • 7.12 Weatherometer test for Type CMX Cable
            • 7.13 Cold impact of outdoor Type CMX cable
            • 7.14 Flame and smoke requirements
            • 7.15 Measuring thickness of insulation and rounding off the results
            • 7.16 Conductor resistance
            • 7.17 Conductor diameter or cross-sectional area
            • 7.18 Compressive loading test for Type CMUC
            • 7.19 Heat shock test for cross-connect wire
            • 7.20 Deformation test for cross-connect wire
            • 7.21 Dielectric tests for cross-connect wire
            • 7.22 Sunlight resistant test
            • 7.23 Circuit integrity test for cable marked "-CI"
            • 7.24 Cable heating test for cables marked "-LP" (XX)
          • 8 Marking of Cables
            • 8.1 General
            • 8.2 Type of marking
            • 8.3 Required marking
            • 8.4 Optional marking
            • 8.5 Intervals
          • 9 Marking on Tag, Reel, or Carton
            • 9.1 General requirements
            • 9.2 Other marking
          • 10 Date of Manufacture
        • TABLES
    • ANNEX A Electrical codes for wire types
    • ANNEX B Guidelines for sample selection for flame and smoke test requirements
    • ANNEX C Cable substitutions