UL 1022
Standard for Line Isolation Monitors

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2012-04-16DOD Approved: --
Price Code:AANSI Approved: 2012-04-16
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover dynamic line isolation monitors and related supplementary indicating units for supervising isolated power-supply circuits in patient care areas of health care facilities, including inhalation-anesthetizing locations in accordance with the National Electrical Code, NFPA 70.

    1.2 The detectors and supplementary indicating units are intended to be:

    a)    Included as part of an isolated power-supply center for patient care locations of health care facilities; and

    b)    Installed in an Other-Than-Hazardous (Classified) Location of a health care facility as defined by the National Electrical Code, NFPA 70.

    1.3 These requirements do not cover ground fault circuit interrupters for use on grounded alternating current systems in accordance with the National Electrical Code, NFPA 70.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
          • 3 Glossary
          • 4 Instructions and Drawings
        • CONSTRUCTION
          • 5 Enclosure
            • 5.1 General
            • 5.2 Cast metal enclosures
            • 5.3 Sheet metal enclosures
            • 5.4 Nonmetallic enclosures
            • 5.5 Ventilating openings
            • 5.6 Covers
            • 5.7 Glass panels
          • 6 Electric Shock
          • 7 Corrosion Protection
          • 8 Field-Wiring System Connections
            • 8.1 General
            • 8.2 Equipment grounding connection
          • 9 Internal Wiring
            • 9.1 General
            • 9.2 Wireways
            • 9.3 Splices
            • 9.4 Barriers
            • 9.5 Bushings
            • 9.6 Strain relief
          • 10 Bonding for Grounding
          • 11 Components
            • 11.1 Current-carrying parts
            • 11.2 Insulating material
            • 11.3 Lampholders and lamps
            • 11.4 Meters
            • 11.5 Printed-wiring boards
            • 11.6 Switches
            • 11.7 Protective devices
            • 11.8 Alarm silencing means
            • 11.9 Audible signaling appliance
            • 11.10 Mounting of components
            • 11.11 Operating components
          • 12 Spacings
          • 13 Servicing and Maintenance
        • PERFORMANCE
          • 14 General
          • 15 Normal Operation Test
          • 16 Sampling Circuit Supervision Test
          • 17 Power Input Test
          • 18 Leakage Current Measurements Test
          • 19 Overvoltage and Undervoltage Test
            • 19.1 Voltage operation
            • 19.2 Undervoltage operation
          • 20 Jarring Test
          • 21 Temperature Test
          • 22 Overload Test
            • 22.1 Monitor
            • 22.2 Separately energized circuits
          • 23 Endurance Test
            • 23.1 Monitor
            • 23.2 Devices and separately energized circuits
          • 24 Variable Ambient Temperature Test
          • 25 Humidity Test
          • 26 Electric Shock Current Test
          • 27 Transient Tests
            • 27.1 General
            • 27.2 Externally-induced transients
            • 27.3 Internally-induced transients
          • 28 Dielectric Voltage-Withstand Test
          • 29 Component Failure Test
          • 30 Abnormal Operation Test
          • 31 Test Switch Operation Test
        • MANUFACTURING AND PRODUCTION TESTS
          • 32 General
          • 33 Production-Line Leakage Current Measurements Test
          • 34 Production-Line Dielectric Voltage-Withstand Tests
        • MARKING
          • 35 General
          • 36 Supplementary
            • 36.1 Installation drawing
            • 36.2 Operating instructions
    • APPENDIX A