1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1090 Electric Snow Movers STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED
2、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Snow Movers, UL 1090 Seventh Edition, Dated October 5, 2016 Summary of Topics This new edition is being issued to incorporate the following changes and to reect the latest ANSI approval date of Oc
3、tober 5, 2016 for the standard. 1. Replace Requirements For Battery Operated Snow Movers In UL 1090 With Requirements From The Standard for General Requirements For Battery-Powered Appliances, UL 2595 The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated
4、 June 24, 2016. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of
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6、other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the
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8、ring an electronic Standard on the purchasers computer system. OCTOBER 4, 2016 UL 1090 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 4, 2016 UL 1090 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPR
9、ODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 5, 2016 1 UL 1090 Standard for Electric Snow Movers First Edition August, 1977 Second Edition March, 1982 Third Edition December, 1986 Fourth Edition June, 1994 Fifth Edition September, 2007 Sixth Edition October, 2010 Seventh Edition Octob
10、er 5, 2016 This ANSI/UL Standard for Safety consists of the Seventh Edition. The most recent designation of ANSI/UL 1090 as an American National Standard (ANSI) occurred on October 5, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date
11、 information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a
12、 printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 1090-2016UL COPYRIGHTED MATERIA
13、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Unit
14、s of Measurement .6 3 Undated References 6 4 Glossary .6 CONSTRUCTION 5 Components 8 5.1 General .8 5.2 Attachment plugs, receptacles, connectors, and terminals 10 5.4 Boxes and raceways .11 5.5 Capacitors and lters 11 5.6 Controls 11 5.7 Cords, cables, and internal wiring .14 5.8 Cord reels 15 5.9
15、Film-coated wire (magnet wire) 15 5.10 Gaskets, seals and tubing .15 5.11 Ground-fault, arc-fault, and leakage current detectors/interrupters 15 5.12 Insulation systems 16 5.13 Light sources and associated components 16 5.14 Marking and labeling systems 17 5.15 Motors and motor overload protection .
16、17 5.16 Motor overload protection .19 5.17 Overcurrent protection 20 5.18 Polymeric materials .20 5.19 Power supplies .21 5.20 Printed-wiring boards .21 5.21 Semiconductors and small electrical and electronic components .21 5.22 Supplemental insulation, insulating bushings, and assembly aids .22 5.2
17、3 Switches 23 5.24 Transformers 23 5.25 Valves (electrically operated) and solenoids .24 6 Frame and Enclosure 24 6.1 General 24 6.2 Metallic enclosures 25 6.3 Polymeric enclosures 25 6.4 Handles 26 7 Accessibility of Uninsulated Live Parts and Film-Coated Wire .27 8 Mechanical Assembly 34 9 Protect
18、ion Against Corrosion 35 10 Supply Connections .36 10.1 General .36 10.2 Flexible cord .36 10.3 Attachment plug 36 10.4 Strain relief 37 10.5 Bushings 37 11 Live Parts 37 12 Internal Wiring 38 OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
19、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 12.1 General .38 12.2 Insulation 39 12.3 Splices and connections 39 13 Electrical Insulation .40 14 Motors .41 15 Switches and Controls .41 16 Lampholders .42 17 Capacitors .42 18 Spacings 43 19 Grounding .45 20 Controls End Product Test Parameters 46
20、20.1 General .46 20.2 Auxiliary controls .46 20.3 Operating controls (regulating controls) .46 20.4 Protective controls (limiting controls) 48 20.5 Controls using a temperature sensing device 50 PROTECTION AGAINST INJURY TO PERSONS 21 General 50 22 Enclosures and Guards 50 23 Rotating Parts 51 24 Sw
21、itches and Controls .51 25 Drop Test for Reliability of Parts 52 PERFORMANCE 26 General 53 27 Leakage Current Test .53 28 Starting Current Test 55 29 Continuity of Ground Connection .55 30 Impeller Stopping Test 56 31 Input Test 56 32 Dielectric Voltage-Withstand Test .56 33 Temperature Test .57 34
22、Resistance to Moisture Test 60 35 Abnormal Operation Test 64 36 Handle Tests .64 37 Strain Relief Test .65 38 Push-Back Relief Test .65 39 Switches and Controls .66 40 Attachment Plug Test .67 41 Accelerated Aging Test 69 42 Permanency of Marking .70 POLYMERIC ENCLOSURES 43 General 70 44 Polymeric M
23、aterials Classed Other Than HB .71 44.1 Mold stress evaluation 71 44.2 Resistance to impact .71 44.3 Abnormal operation .73 44.4 Flame resistance .73 OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FRO
24、M UL 45 Polymeric Materials Classed HB 74 45.1 Mold stress evaluation 74 45.2 Resistance to impact .74 45.3 Overload 74 45.4 Flame test .75 45.5 Resistance to hot-wire ignition .75 45.6 Volume resistivity .75 45.7 High-current arc ignition .76 MANUFACTURING AND PRODUCTION TESTS 46 Dielectric Voltage
25、-Withstand Test .76 47 Grounding Continuity 78 RATINGS 48 General 78 MARKINGS 49 General 78 50 Identication and Rating .78 51 Fuses .79 52 Switches and Controls .79 53 Cautionary Markings 79 INSTRUCTIONS 54 Instruction Manual 80 54.1 General .80 DOUBLE-INSULATED SNOW MOVERS 55 General 85 56 Construc
26、tion .86 57 Marking 86 SUPPLEMENT SA - BATTERY POWERED SNOW MOVERS SA1 Scope SA1 SA2 Construction and Performance SA1 OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 Th
27、ese requirements cover cord-connected electrically operated snow movers rated 250 V or less to be employed in accordance with the National Electrical Code, ANSI/NFPA 70. 1.2 These requirements also cover battery-operated snow movers as specied in Battery Powered Gardening Appliances, Supplement SA,
28、in this Standard. 1.3 These requirements do not cover riding-type snow movers or snow movers intended for commercial or industrial use or for use in hazardous locations as dened in the National Electrical Code, ANSI/NFPA 70. 1.4 In addition to the requirements in this standard, a snow mover shall co
29、mply with 5.1, 5.2.2, 5.2.3, 5.2.5, 6, 7, 10.1 10.3, 11.1, and 12 of the Snow Throwers Safety Specications, ANSI B71.3. Exception: Markings shall be considered durable and permanent if they comply with Permanency of Marking, Section 42, of this standard. 2 Units of Measurement 2.1 Values stated with
30、out parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Unless otherwise indicated, all voltage and current values specied in this standard are root-mean-square. 3 Undated References 3.1 Any undated reference to a code or standard appearing in the r
31、equirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 4 Glossary 4.1 For the purpose of this standard the following denitions apply. 4.2 APPLIANCE COUPLER A single-outlet, female contact device for attachment to a exible cord as part of a deta
32、chable power-supply cord to be connected to an appliance inlet (motor attachment plug). 4.3 APPLIANCE INLET (Motor Attachment Plug) A male contact device mounted on an end product appliance to provide an integral blade conguration for the connection of an appliance coupler or cord connector. 4.4 APP
33、LIANCE (FLATIRON) PLUG An appliance coupler type of device having a cord guard and a slot conguration specied for use with heating or cooking appliances. OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION
34、 FROM UL 4.5 AUTOMATICALLY CONTROLLED PRODUCT A product is determined to be automatically controlled if it complies with one or more of the following conditions: a) The repeated starting of the product is independent of any manual control after one complete cycle of operation, after which some form
35、of limit device opens the circuit. b) During any single preset cycle of operation, the motor is caused to stop and restart. c) When the product is energized, the initial starting of the motor may be intentionally delayed beyond intended, conventional starting. d) For a product employing a motor with
36、 a separate starting winding, during any single predetermined cycle of operation, automatic changing of the mechanical load reduces the motor speed sufficiently to reestablish starting-winding connections to the supply circuit. 4.6 COMPONENT A device or fabricated part of the appliance covered by th
37、e scope of a safety standard dedicated to the purpose. When incorporated in an appliance, equipment otherwise typically eld installed (e.g. luminaire) is considered to be a component. Unless otherwise specied, materials that compose a device or fabricated part, such as thermoplastic or copper, are n
38、ot considered components. 4.7 CONTROL, AUTOMATIC ACTION A control in which at least one aspect is non-manual. 4.8 CONTROL, AUXILIARY A device or assembly of devices that provides a functional utility, is not relied upon as an operational or protective control, and therefore is not relied upon for sa
39、fety. For example, an efficiency control not relied upon to reduce the risk of re, electric shock, or injury to persons during normal or abnormal operation of the end product is considered an auxiliary control. 4.9 CONTROL, MANUAL A device that requires direct human interaction to activate or rest t
40、he control. 4.10 CONTROL, OPERATING A device or assembly of devices, the operation of which starts or regulates the end product during normal operation. For example, a thermostat, the failure of which a thermal cutout/limiter or another layer of protection would mitigate the risk of re, electric sho
41、ck, or injury to persons, is considered an operating control. Operating controls are also referred to as regulating controls . 4.11 CONTROL, PROTECTIVE A device or assembly of devices, the operation of which is intended to reduce the risk of re, electric shock, or injury to persons during normal and
42、 reasonably anticipated abnormal operation of the appliance whereby during the evaluation of the protective control/circuit, the protective functions are veried under normal and single-fault conditions of the control. For example, a thermal cutout/limiter, or any other control/circuit relied upon fo
43、r normal and abnormal conditions, is considered a protective control. Protective controls are also referred to as limiting controls and safety controls . 4.12 CONTROL, TYPE 1 ACTION The actuation of an automatic control for which the manufacturing deviation and the drift (tolerance before and after
44、certain conditions) of its operating value, operating time, or operating sequence has not been declared and tested under this standard. OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.13 CONT
45、ROL, TYPE 2 ACTION The actuation of an automatic control for which the manufacturing deviation and the drift (tolerance before and after certain conditions) of its operating value, operating time, or operating sequence have been declared and tested under this standard. 4.14 CORD CONNECTOR A female c
46、ontact device wired on exible cord for use as an extension from an outlet to make a detachable electrical connection to an attachment plug or, as an appliance coupler, to an equipment inlet. 4.4.15 DIRECTLY ACCESSIBLE MOTOR A motor that can be contacted without opening or removing any part, or that
47、is located so as to be accessible to contact. 4.16 ENCLOSURE That portion of the snow mover that: a) Renders inaccessible all parts that may otherwise present a risk of electric shock or injury to persons, or b) Prevents propagation of ame initiated by electrical disturbances occurring within, or bo
48、th. 4.17 GROUND-SUPPORTED SNOW MOVER A snow mover that, during normal operation, is supported entirely or in part by the ground. 4.18 HAND-SUPPORTED SNOW MOVER A snow mover that, at some time during normal operation, is intended to be completely supported by the user. 4.19 INDIRECTLY ACCESSIBLE MOTO
49、R A motor that is accessible only by opening or removing a part of the outer enclosure, such as a guard or panel, that can be opened or removed without using a tool, or that is located at such a height or is otherwise guarded or enclosed so that it is unlikely to be contacted. 4.20 LEAKAGE CURRENT All current or currents, including capacitively-coupled current, that may be conveyed between exposed conductive surfaces of a snow mover and ground or other expo
