UL 561
Standard for Floor-Finishing Machines

DETAILS
Edition Number:7SCC Approved:--
Edition Date:2011-10-31DOD Approved: 1991-03-11
Price Code:BANSI Approved: 2018-01-09
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover electrically powered floor-finishing machines to be used in accordance with the National Electrical Code, NFPA 70. This product category includes the following: a floor polisher, floor scrubber, floor sander, floor scraper, tile remover, rug shampooer, rug and floor washer, and a similar machine for commercial use. A machine such as a sander and wet scrubber with vacuum attachments is also covered.

    1.2 These requirements do not cover vacuum cleaning machines, permanently connected machines, or cord-connected machines that are intended to be fastened in place or located in a dedicated space. These requirements do not cover machines rated more than 600 volts, nor do they cover machines involving universal motors rated more than 250 volts. These requirements do not cover floor finishing machines for household use, which are covered in the Standard for Vacuum Cleaners, Blower Cleaners, and Household Floor Finishing Machines, UL 1017/ CSA-C22.2 No. 243.

    1.3 A machine that uses some other source of energy (such as gas or steam) in addition to electrical energy will be investigated under these requirements and under such additional requirements as applicable to the machine under consideration.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Terminology
            • 2.2 Units of measurement
            • 2.3 Undated references
          • 3 Glossary
          • 4 Components
            • 4.1 General
            • 4.2 Attachment Plugs, receptacles, connectors, and terminals
            • 4.3 Boxes, conduits, and raceways
            • 4.4 Capacitors and filters
            • 4.5 Controls
            • 4.6 Cords, cables, and internal wiring
            • 4.7 Film-coated wire (magnet wire)
            • 4.8 Gaskets and seals
            • 4.9 Ground-fault, arc-fault, and leakage current detectors/interrupters
            • 4.10 Heating elements and heaters
            • 4.11 Insulation systems
            • 4.12 Light sources and associated components
            • 4.13 Marking and labeling systems
            • 4.14 Motors and motor overload protection
            • 4.15 Overcurrent protection
            • 4.16 Polymeric materials and enclosures
            • 4.17 Power supplies
            • 4.18 Printed wiring boards
            • 4.19 Pumps
            • 4.20 Semiconductors and small electronic components
            • 4.21 Supplemental insulation, insulating bushings, and assembly aids
            • 4.22 Switches
            • 4.23 Transformers
            • 4.24 Valves (electrically operated) and solenoids
        • ALL APPLIANCES
          • CONSTRUCTION
          • 5 Frame and Enclosure
          • 6 Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts
          • 7 Mechanical Assembly
          • 8 Enclosure
            • 8.1 General
          • 9 Resistance to Corrosion
          • 10 Supply Connections
          • 11 Strain Relief
          • 12 Bushings
          • 13 Live Parts
          • 14 Internal Wiring
          • 15 Tabs Used in Electrical Quick-Connect Terminals
            • 15.1 General
            • 15.2 Material requirements
            • 15.3 Dimensional requirements
          • 16 Insulating Material
          • 17 Motors and Motor Protection
          • 18 Insulation Systems
          • 19 Motor Circuit Overload Protection
          • 20 Arc-Fault and Leakage Current Detectors/Interrupters
          • 21 Switches and Controls
          • 22 Controls – End Product Test Parameters
            • 22.1 General
            • 22.2 Auxiliary controls
            • 22.3 Operating controls (regulating controls)
            • 22.4 Protective controls (limiting controls)
            • 22.5 Controls using a temperature sensing device
          • 23 Capacitors
          • 24 Lampholders
          • 25 Receptacles
          • 26 Spacings
          • 27 Grounding
          • 28 Reduction of Risk of Injury to Persons
          • PERFORMANCE
          • 29 Leakage Current Test
          • 30 Leakage Current Test After Humidity Conditioning
          • 31 Starting Current Test
          • 32 Input Test
          • 33 Temperature Test
            • 33.1 General
            • 33.2 Maximum intended load
          • 34 Dielectric Voltage-Withstand Test
          • 35 Strain Relief Test
          • 36 Push-Back Relief Test
          • 37 Flooding Test
            • 37.1 General
            • 37.2 Component malfunction or breakdown
            • 37.3 Wet pick-up
            • 37.4 Wet scrubbing
            • 37.5 Overflow
            • 37.6 Polymeric water-handling components
            • 37.7 Impact test for polymeric reservoirs
            • 37.8 Temperature stability test for polymeric reservoirs
          • 38 Cord Reel Flexing Test
          • 39 Abnormal Operation Test
            • 39.1 General
            • 39.2 Locked rotor
            • 39.3 Overcurrent
          • 40 Abnormal Operation Test – Electronic Components Test
            • 40.1 General
            • 40.2 Electronic components
          • 41 Overload Test
          • 42 Permanence of Marking Test
            • 42.1 General
            • 42.2 Oven-aging test
            • 42.3 Standard-atmosphere test
          • MANUFACTURING AND PRODUCTION TESTS
          • 43 Production-Line Dielectric Voltage-Withstand Test
          • 44 Production-Line Grounding Continuity Test
          • MARKINGS
          • 45 General
          • 46 Cord Tags
          • PACKING AND SHIPMENT
          • 47 Safety Instructions
        • DOUBLE-INSULATED PRODUCTS
          • GENERAL
          • 48 Scope
          • 49 Glossary
          • CONSTRUCTION
          • 50 Insulation
          • 51 Enclosure
            • 51.1 General
            • 51.2 Accessibility of live parts
          • 52 Supply Connections
          • 53 Grounding
          • 54 Internal Wiring
          • 55 Capacitors
          • 56 Brush Caps
          • 57 Commutators and Armature End Turns
          • 58 Switches
          • 59 Brush Holders
          • 60 Spacings
          • PERFORMANCE
          • 61 Leakage Current Test
          • 62 Insulation Resistance Test
          • 63 Dielectric Voltage-Withstand Test
          • 64 Resistance to Impact Test
          • 65 Resistance to Heat Test
          • 66 Overload Test
          • 67 Armature Test
          • MANUFACTURING AND PRODUCTION TEST
          • 68 Production-Line Dielectric Voltage-Withstand Test
          • MARKINGS
          • 69 General