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 The revision pages dated September 20, 2017 are being issued to incorporate the following changes and to reect the lat
3、est ANSI approval date of the standard. 1. Addition Of Electrostatic Discharge Test Requirements To Determine If Potential Safety Hazards Exist During Operation 2. Revision And Addition Of Safety Instruction Requirements To Specify Minimum Gauge Requirements The new/revised requirements are substant
4、ially in accordance with Proposal(s) on this subject dated May 26, 2017 and August 18, 2017. 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
5、 prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or
6、similar damages, including loss of prots, lost savings, loss of data, or any 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
7、 ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys
8、fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. SEPTEMBER 20, 2017 UL 1090 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 20, 2017 UL 1
9、090 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 5, 2016 (Title Page Reprinted: September 20, 2017) 1 UL 1090 Standard for Electric Snow Movers First Edition August, 1977 Second Edition March, 1982 Third Ed
10、ition December, 1986 Fourth Edition June, 1994 Fifth Edition September, 2007 Sixth Edition October, 2010 Seventh Edition October 5, 2016 This ANSI/UL Standard for Safety consists of the Seventh Edition and revisions through September 20, 2017. The most recent designation of ANSI/UL 1090 as an Americ
11、an National Standard (ANSI) occurred on September 20, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. 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 Proposa
12、l Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a 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 Sta
13、ndards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 1090-2017UL COPYRIGHTED MATERIAL 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
14、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Units of Measurement .6 3 Undated References 6 4 Glossary .6 CONSTRUCTION 5 Components8 5.1 General .8 5.2 Attachment plugs, receptacles, connectors, and termin
15、als 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 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 Insulatio
16、n systems16 5.13 Light sources and associated components 16 5.14 Marking and labeling systems17 5.15 Motors and motor overload protection.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 Semico
17、nductors and small electrical and electronic components .21 5.22 Supplemental insulation, insulating bushings, and assembly aids.22 5.23 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 Polym
18、eric enclosures 25 6.4 Handles 26 7 Accessibility of Uninsulated Live Parts and Film-Coated Wire .27 8 Mechanical Assembly 34 9 Protection Against Corrosion 35 10 Supply Connections .36 10.1 General .36 10.2 Flexible cord .36 10.3 Attachment plug36 10.4 Strain relief 37 10.5 Bushings 37 11 Live Part
19、s37 12 Internal Wiring38 OCTOBER 4, 2016 ELECTRIC SNOW MOVERS - UL 1090 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 12.1 General .38 12.2 Insulation39 12.3 Splices and connections 39 13 Electrical Insulation .40 14 Motors.41 15 Switches
20、 and Controls.41 16 Lampholders .42 17 Capacitors .42 18 Spacings 43 19 Grounding .45 20 Controls End Product Test Parameters 46 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 temper
21、ature sensing device 50 PROTECTION AGAINST INJURY TO PERSONS 21 General50 22 Enclosures and Guards50 23 Rotating Parts 51 24 Switches and Controls.51 25 Drop Test for Reliability of Parts 52 PERFORMANCE 26 General53 27 Leakage Current Test .53 28 Starting Current Test 55 29 Continuity of Ground Conn
22、ection .55 30 Impeller Stopping Test 56 31 Input Test56 32 Dielectric Voltage-Withstand Test .56 33 Temperature Test.57 34 Resistance to Moisture Test60 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 P
23、lug Test .67 41 Accelerated Aging Test 69 42 Permanency of Marking .70 42A Electrostatic Discharge (ESD) Resistance Test70 POLYMERIC ENCLOSURES 43 General 70B 44 Polymeric Materials Classed Other Than HB .71 44.1 Mold stress evaluation 71 44.2 Resistance to impact .71 44.3 Abnormal operation.73 SEPT
24、EMBER 20, 2017 ELECTRIC SNOW MOVERS - UL 1090 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 44.4 Flame resistance .73 45 Polymeric Materials Classed HB 74 45.1 Mold stress evaluation 74 45.2 Resistance to impact .74 45.3 Overload 74 45.4
25、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-Withstand Test .76 47 Grounding Continuity 78 RATINGS 48 General78 MARKINGS 49 General78 50 Identication and Rating .78 51 Fu
26、ses .79 52 Switches and Controls.79 53 Cautionary Markings 79 INSTRUCTIONS 54 Instruction Manual 80 54.1 General .80 54.2 Important safety instructions .82 DOUBLE-INSULATED SNOW MOVERS 55 General85 56 Construction .86 57 Marking86 SUPPLEMENT SA - BATTERY POWERED SNOW MOVERS SA1 Scope SA0 SA2 Constru
27、ction and Performance SA0 SEPTEMBER 20, 2017 ELECTRIC SNOW MOVERS - UL 1090 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover cord-connected electrically operated snow movers rated 250 V or le
28、ss 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, in this Standard. 1.3 These requirements do not cover riding-type snow movers or snow mov
29、ers 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 comply 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 Sa
30、fety 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 without parentheses are the requirement. Values in parentheses are explanatory or approximate
31、 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 requirements of this standard shall be interpreted as referring to the latest edition of t
32、hat 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 detachable power-supply cord to be connected to an appliance inlet (motor attachment plug). 4
33、.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 APPLIANCE (FLATIRON) PLUG An appliance coupler type of device having a cord guard and a slot
34、 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 FROM UL 4.5 AUTOMATICALLY CONTROLLED PRODUCT A product is determined to be automatically
35、 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 of limit device opens the circuit. b) During any single preset cycle of operation, the mo
36、tor 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 a separate starting winding, during any single predetermined cycle of operation, automat
37、ic 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 the scope of a safety standard dedicated to the purpose. When incorporated in an appliance,
38、 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 not considered components. 4.7 CONTROL, AUTOMATIC ACTION A control in which at least one a
39、spect 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 safety. For example, an efficiency control not relied upon to reduce the risk of re, electr
40、ic 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 the control. 4.10 CONTROL, OPERATING A device or assembly of devices, the operation of whi
41、ch 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 shock, or injury to persons, is considered an operating control. Operating controls are also
42、 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 reasonably anticipated abnormal operation of the appliance whereby during the evaluation
43、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 for normal and abnormal conditions, is considered a protective control. Protective controls
44、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 certain conditions) of its operating value, operating time, or operating sequence has not b
45、een 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 CONTROL, TYPE 2 ACTION The actuation of an automatic control for which the manufacturing deviat
46、ion 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 contact device wired on exible cord for use as an extension from an outlet to make a detacha
47、ble 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 is located so as to be accessible to contact. 4.16 ENCLOSURE That portion of the snow mover
48、 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 both. 4.17 GROUND-SUPPORTED SNOW MOVER A snow mover that, during normal operation, is support
49、ed 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 MOTOR 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 unlike
