UL 867
Standard for Electrostatic Air Cleaners

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2011-08-04DOD Approved: 1992-06-11
Price Code:BANSI Approved: 2018-08-07
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover electrostatic air cleaners rated at 600 volts or less, intended to remove dust and other particles from the air and intended for use in accordance with the National Electrical Code, ANSI/NFPA 70.

    1.1.1 In reference to 1.1, these requirements may be used to evaluate products that are powered entirely by a low-voltage supply source, such as those intended for connection to a Universal Serial Bus (USB) supply source.

    1.2 These requirements do not cover electrostatic air cleaners for use in hazardous locations or to clean atmospheres defined as hazardous by the National Electrical Code, ANSI/NFPA 70.

    1.3 These requirements do not cover air cleaners intended to remove particles other than dust and other particles normally found in heating and ventilating systems.

    1.4 Requirements for the installation of duct-type electrostatic air cleaners are included in the Standard for the Installation of Air Conditioning and Ventilating Systems, NFPA 90A; and the Standard for the Installation of Warm Air Heating and Air Conditioning Systems, NFPA 90B.

  • TABLE OF CONTENTS
    Expand All

    • 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
        • CONSTRUCTION
          • 4 General
          • 4A Components
            • 4A.1 General
            • 4A.2 Attachment plugs, receptacles, connectors and terminals
            • 4A.3 Boxes and raceways
            • 4A.4 Cords, cables and internal wiring
            • 4A.5 Cord reels
            • 4A.6 Ground-fault, arc-fault and leakage current detectors/interrupters
            • 4A.7 Light sources and associated components
            • 4A.8 Overcurrent protection
            • 4A.9 Power supplies
            • 4A.10 Supplemental insulation, insulating bushings and assembly aids
            • 4A.11 Transformers
            • 4A.12 Button or coin cell batteries
            • 4A.13 Information technology equipment
            • 4A.14 Optical isolators and semiconductor devices
          • 5 Accessories
          • 6 Frame, Cabinet and Enclosure
            • 6.1 General
            • 6.2 High-voltage power supply
            • 6.3 Fixed products
            • 6.4 Portable products
          • 6A Nonmetallic Parts
          • 6B Nonmetallic Materials
          • 6C Nonmetallic Material Ignition Sources Separation
          • 7 Accessibility of Uninsulated Live Parts and Moving Parts
          • 8 Mechanical Assembly
            • 8.1 General
            • 8.2 Assembly for shipping
            • 8.3 Mechanical barriers
          • 9 Live Parts
          • 10 Protection Against Corrosion
            • 10.1 Products intended for indoor use
            • 10.2 Products intended for outdoor use
          • 11 Electrical Insulation
            • 11.1 All circuits
            • 11.2 Primary circuits
            • 11.3 Secondary circuits
            • 11.4 Insulating barriers
          • 12 Supply Connections
            • 12.1 Permanently-connected products
            • 12.2 Cord-connected products
            • 12.3 Cord-connected conversion to permanently connected
          • 13 Polarization
          • 13A Switches and Controllers
          • 13B Remotely Operated Electrostatic Air Cleaners
          • 14 Grounding
            • 14.1 General
            • 14.2 Bonding
            • 14.3 Portable products
          • 15 Internal Wiring
            • 15.1 General
            • 15.2 Primary circuits
            • 15.3 High-voltage circuits
          • 16 Capacitors
          • 17 Coil Windings
          • 18 Printed-Wiring Boards
          • 19 Overcurrent Protection
          • 19A General Purpose Transformer – Insulation Systems
          • 20 Motors and Motor Overcurrent Protection
          • 21 Washing
          • 22 Filters
          • 23 Spacings
            • 23.1 General
            • 23.2 Low voltage and isolated-limited-energy circuits
            • 23.3 Line-voltage circuits
            • 23.4 High-voltage circuits
            • 23.5 Insulating barriers
            • 23.6 Alternate spacings – clearances and creepage distances
          • 24 Separation of Circuits
            • 24.1 General
            • 24.2 Class 2 circuits
            • 24.3 Permanently-connected products
        • PROTECTION AGAINST INJURY TO PERSONS
          • 25 General
          • 26 Rotating Parts
          • 27 Enclosures and Guards
          • 28 Impact Test
          • 29 Interlocks
            • 29.1 Switches
            • 29.2 Interlocks
          • 30 Electronic Circuits
          • 31 Stability
          • 32 Collector Handle Securement Test
          • 33 External Surface Temperatures
        • PERFORMANCE
          • 34 General
          • 35 Leakage Current Test
            • 35.1 General
            • 35.2 Normal use
          • 36 Leakage Current Following Humidity Conditioning
          • 37 Partially Protected Parts
          • 38 Input Test
          • 39 Output Test
          • 40 Ozone Test
            • 40.1 General
            • 40.2 Chamber specifications
            • 40.3 Equipment specifications
            • 40.4 Test method
          • 41 Peak Ozone Emission Location Determination
          • 42 Strain Relief Test
          • 43 Pushback Relief Test
          • 44 Grounding Resistance Test
          • 45 Temperature Test
          • 46 Dielectric Voltage-Withstand Test
            • 46.1 General
            • 46.2 High-voltage transformer core
            • 46.3 Induced potential
          • 46A General Purpose Transformers
            • 46A.1 General
            • 46A.2 Voltage measurement test
            • 46A.3 Overload test
            • 46A.4 Repeated dielectric voltage-withstand test
          • 46B Thermal Aging Test
          • 46C Endurance Test – Switching Devices
          • 47 Stored Energy Test
          • 48 Evaluation of Reduced Spacings on Printed-Wiring Boards
            • 48.1 General
            • 48.2 Shorted trace test
          • 49 Abnormal Operation Test
            • 49.1 General
            • 49.2 High-voltage supply
            • 49.3 High-voltage spacings short circuit
            • 49.4 Unenclosed high-voltage power supply
            • 49.5 Component short- and open-circuit test
            • 49.6 Stalled rotor, restricted air inlet and blocked air outlet
            • 49.7 Low-voltage powered product overvoltage test
          • 49A Protective Electronic Circuit Tests
            • 49A.1 General
            • 49A.2 Fault conditions abnormal test
            • 49A.3 Electromagnetic compatibility (EMC) tests
            • 49A.4 Programmable component reduced supply voltage test
            • 49A.5 Fuse-link test
          • 49B Rain Test
          • 49C Accelerated Aging Tests – Gaskets
          • 49D Switch Mode Power Supply Units – Overload Test
          • 50 Metallic Coating Thickness Test
          • 51 High-Voltage Insulating Material Arcing Test
          • 51A Tests on Nonmetallic Materials
          • 51B Fastener Strength Test
          • 51C Wiring Endurance Test
          • 52 Permanence of Marking
        • MANUFACTURING AND PRODUCTION TESTS
          • 53 Dielectric Voltage-Withstand Test
          • 54 Grounding Continuity
          • 54A Protective Electronic Circuit Test
        • RATINGS
          • 55 Details
        • MARKINGS
          • 56 Visible During Installation and Inspection
          • 57 Visible After Installation
          • 58 Cautionary Markings
          • 59 Manufacturer's Literature
    • APPENDIX A
    • Appendix B – (Normative) – Operating and Protective (“Safety Critical”) Control Functions