Source: https://standardscatalog.ul.com/standards/en/standard_1447_5
Timestamp: 2017-05-25 16:11:08
Document Index: 227732934

Matched Legal Cases: ['ART 1', 'arts8', 'arts9', 'arts12', 'arts14', 'ART 2', 'ART 3']

ContactSTANDARDSSTANDARDS HOMELanguageEnglishEnglishFrançais Canadien UL 1447Standard for Electric Lawn MowersPurchase UL 1447DETAILSEdition Number:5SCC Approved:--Edition Date:2011-08-01DOD Approved: --Price Code:CANSI Approved: 2013-12-13Type:ulstd SCOPE1 Scope
1.1 These requirements cover cord-connected electrically operated lawn mowers rated 250 volts or less to be employed in accordance with the National Electrical Code, ANSI/NFPA 70. These requirements also cover battery-operated lawn mowers.
1.2 These requirements do not cover equipment for use in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70.
1.3 These requirements do not cover sulky-type lawn mowers, garden tractors or their attachments, flail mowers, sickle-bar mowers, robotic lawn mowers, or lawn mowers intended for commercial use.
1.4 In addition to the requirements in this standard, a lawn mower shall comply with the Safety Specification for Consumer Turf-Care Equipment – Walk-Behind Mowers and Ride-On Machines with Mowers, ANSI B71.1, and with the Safety Standard for Walk-Behind Power Lawn Mowers, 16 CFR 1205.
1.5 In the text, a requirement that applies only to a rotary or other type of lawn mower is identified by a specific reference in that requirement to the specific lawn mower involved. Absence of the specific reference, or use of the term lawn mower, indicates that the requirement applies to all of the lawn mowers covered in this standard.
TABLE OF CONTENTSExpand AllCoverTransmittalTable of ContentsBodyPART 1 &ndash; ALL LAWN MOWERSINTRODUCTION1 Scope2 Units of Measurement3 Undated References4 GlossaryCONSTRUCTION5 General5.2 Attachment plugs, receptacles, connectors, and terminals5.3 Batteries5.4 Boxes and raceways5.5 Capacitors and filters5.6 Controls5.7 Cords, cables, and internal wiring5.8 Cord reels5.9 Film-coated wire (magnet wire)5.10 Gaskets, seals and tubing5.11 Ground-fault, arc-fault, and leakage current detectors / interrupters5.12 Insulation systems5.13 Light sources and associated components5.14 Marking and labeling systems5.15 Motors and motor overload protection5.16 Overcurrent protection5.17 Polymeric materials and enclosures5.18 Printed-wiring boards5.19 Semiconductors and small electrical and electronic components5.20 Supplemental insulation, insulating bushings, and assembly aids5.21 Switches5.22 Transformers5.23 Valves (electrically operated) and solenoids6 Frame and Enclosure6.1 General6.2 Metallic enclosures6.3 Polymeric enclosures6.4 Handles6.5 Protection against corrosion7 Accessibility of Live Parts8 Accessibility of Moving Parts9 Mechanical Assembly9.1 General9.2 Lawn mowers shipped partially disassembled10 Handles11 Rotating Parts12 Supply Connections12.1 Power-supply cord12.2 Cord set12.3 Flexible cord12.4 Attachment plug12.5 Strain relief12.6 Bushings13 Live Parts14 Internal Wiring14.1 General14.2 Splices and connections15 Electrical Insulation16 Motors17 Switches and Controls18 Controls &ndash; End Product Test Parameters18.1 General18.2 Auxiliary controls18.3 Operating controls (regulating controls)18.4 Protective controls (limiting controls)18.5 Controls using a temperature sensing device19 Lampholders20 Capacitors21 Printed-Wiring Boards22 Spacings23 GroundingPERFORMANCE24 General25 Leakage Current Test26 Starting Current Test27 Continuity of Ground Connection Test28 Input Test29 Impact Test30 Temperature Test31 Dielectric Voltage-Withstand Test32 Resistance to Moisture Tests32.1 High humidity32.2 Water spray33 Operation Tests33.1 Blade stopping time after long term cycling33.2 Peripheral speed33.3 Direction33.4 Operation indicator33.5 Sound level34 Abnormal Operation Test35 Handle Durability Test36 Attachment Plug Test37 Strain Relief Test37.1 Pull37.2 Torque38 Push-Back Relief Test39 Cord Flexing Test40 Pressure Pad Test41 Switch and Control Tests41.1 General41.2 Locked rotor test41.3 Reversing switch test42 Capacitor Test43 Accelerated Aging Test44 Permanency of Marking Tests44.1 General44.2 Oven aging test44.3 Immersion test44.4 Standard atmosphere test45 Polymeric Materials Other Than HB45.1 Mold stress evaluation45.2 Resistance to impact test45.3 Abnormal operation tests45.4 Flame resistance test46 Polymeric Materials Classified HB46.1 General46.2 Mold-stress evaluation46.3 Resistance to impact test46.4 Overload test46.5 Flame test46.6 Resistance to hot-wire ignition test46.7 High-current arc ignition testMANUFACTURING AND PRODUCTION TESTS47 Production-Line Dielectric Voltage Withstand Test47.1 Other than double-insulated mowers47.2 Double-insulated mowers48 Production-Line Continuity of Ground TestRATING49 GeneralMARKINGS50 General51 Identification and Rating52 Fuses53 Switches and Controls54 Cautionary MarkingsINSTRUCTIONS55 Instruction Manual55.1 General55.2 Safety instructionsPART 2 &ndash; ROTARY LAWN MOWERSGENERAL56 ScopeCONSTRUCTION57 Mechanical Assembly58 Switches and ControlsPERFORMANCE59 General60 Input Test61 Impact Test62 Out-of-Balance Test63 Blade Stopping Time64 Torque Test65 Structural Integrity Test66 Foot Contact Test67 Obstruction Test68 Movable Guard Test69 Thrown Object TestPART 3 &ndash; DOUBLE-INSULATED LAWN MOWERSGENERAL70 ScopeCONSTRUCTION71 Insulation72 Supply Connections72.1 Power supply cord72.2 Strain relief72.3 Bushings73 Grounding74 Internal Wiring75 Capacitors76 Motors76.1 Brush caps76.2 Commutators and armature end-turns76.3 Switches76.4 Brush holders77 SpacingsPERFORMANCE78 Leakage Current79 Insulation Resistance Test80 Dielectric Voltage-Withstand Test81 Resistance to Impact Test82 Resistance to Heat Test83 Overload Test83.1 General83.2 Test terminated &ndash; lawn mower does not operate83.3 Test terminated &ndash; lawn mower still operates84 Armature InvestigationMARKINGS85 DetailsBATTERY-OPERATED LAWN MOWERSUL 1447 REFERENCES THESE STANDARDSUL 20UL 44UL 62UL 66UL 82UL 83UL 94UL 157UL 224UL 244AUL 248-1UL 248-5UL 310UL 355UL 429UL 486A-486BUL 486CUL 486EUL 489UL 489AUL 496UL 498UL 507UL 508UL 508CUL 510UL 514AUL 514CUL 514DUL 635UL 746AUL 746BUL 746CUL 746DUL 758UL 773AUL 796UL 810UL 817UL 873UL 917UL 935UL 943UL 943BUL 969UL 991UL 1004-1UL 1004-2UL 1004-3UL 1004-7UL 1012UL 1029UL 1053UL 1059UL 1077UL 1090UL 1283UL 1310UL 1411UL 1412UL 1434UL 1441UL 1446UL 1447UL 1557UL 1565UL 1577UL 1642UL 1699UL 1977UL 1998UL 2111UL 2459UL 4248-1UL 4248-9UL 5085-1UL 5085-2UL 5085-3UL 8750UL 60691UL 60730-1UL 60730-2-2UL 60730-2-6UL 60730-2-7UL 60730-2-8UL 60730-2-9UL 60730-2-16AUL 60730-2-18UL 61058-1UL is a global independent safety science company offering expertise across three strategic businesses: Commercial & Industrial, Consumer and UL Ventures. 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