UL 1412
Standard for Fusing Resistors and Temperature-Limited Resistors for Radio- and Television- Type Appliances

DETAILS
Edition Number:5SCC Approved:--
Edition Date:1999-08-30DOD Approved: --
Price Code:AANSI Approved: 2016-07-28
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover fusing resistors and temperature-limited resistors to be employed in radio- and television-type appliances. These requirements also apply to resistor mounting assemblies intended for use with such resistors. The purpose of these requirements is to reduce the risk of fire or electric shock by use of those resistors, but compliance of a resistor with the following requirements does not mean that it is acceptable for all applications without evaluation in the appliance.

    1.2 These requirements cover fusing resistors and temperature-limited resistors for use in radio- and television-type appliances in circuits that do not involve potentials greater than 2500 V peak.

    1.3 Deleted January 21, 2004

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Foreword
      • Body
        • GENERAL
          • 1 Scope
          • 2 Glossary
          • 3 References
        • CONSTRUCTION
          • 4 General
          • 5 Corrosion Protection
          • 6 Insulating Material
          • 7 Spacings
          • 8 Mounting
        • PERFORMANCE
        • GENERAL
          • 9 Arc Resistance Test
          • 10 High-Current Arcing Test
          • 11 Hot-Wire Ignition Test
          • 12 Resistance to Moisture Test
          • 13 Strain Relief Test
          • 14 Torque Test
        • FUSING RESISTORS
          • 15 Overload Test
          • 16 Positive Opening Test
          • 17 Opening-Time Calibration Tests
          • 18 Limited Short Circuit Test
          • 19 Dielectric Voltage-Withstand Test
        • TEMPERATURE-LIMITED RESISTORS
          • 20 Representative Devices
          • 21 Overload Test
            • 21.1 Gradual overload test
            • 21.2 Sudden overload test
            • 21.3 Open resistor
          • 22 Dielectric Voltage-Withstand Test
          • 23 Dielectric Voltage-Withstand Test Repeated (Optional)
        • RATING
          • 24 Details
        • MARKING
          • 25 Details