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1、UL 1090Electric Snow MoversUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from SEPTEMBER 26, 2007 UL 1090tr3Underwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for Safety for
2、 Electric Snow Movers, UL 1090Fifth Edition, Dated September 26, 2007Summary of TopicsThe Fifth Edition of UL 1090 was issued to: 1) revise Paragraph 1.3 to update the specific sections of ANSI B71.3, Safety Specifications for Snow Throwers, that are required for compliance with UL 1090; 2) revise P
3、aragraph 20.4 to prohibit the use of sheet-metal screws as a means of securing grounding or bonding conductors to an enclosure; 3) revise Paragraph33.10 to delete reference to the use of asbestos materials; 4) revise the component standards list in Appendix A to replace UL 506 with UL 5085-1, UL 508
4、5-2, and UL 5085-3, to replace UL198F with UL 248-11, and to replace UL 198G with UL 248-14; 5) editorial revisions including addition of statement to address undated references and removal of dates associated with references in the standard and renumbering.The following table lists the future effec
5、tive dates with the corresponding reference.Future Effective DateReferencesMarch 26, 20091.3, 20.4The new requirements are substantially in accordance with ULs Proposal(s) on this subject dated June 6,2007 and August 3, 2007.The UL Foreword is no longer located within the UL Standard. For informatio
6、n concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: http:/ master for this Standard at ULs Northbrook Office is the official document insofar as it relates to a UL service and the compliance
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21、xcept for those paragraphs, sections, tables, figures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard
22、, and are preceded by a SUPERSEDED REQUIREMENTS notice.New product submittals made prior to a specified future effective date will be judged under all of the requirements in this Standard including those requirements with a specified future effective date, unless the applicant specifically requests
23、that the product be judged under the current requirements. However, if the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a condition of continued Listing and Follow-Up Services after the effective date, and understandi
24、ng of this should be signified in writing.Copyright 2007 Underwriters Laboratories Inc.This Standard consists of pages dated as shown in the following checklist:PageDate1-66 . September 26, 2007A1-A2 . September 26, 2007SR1-SR2 . September 26, 2007This PDF Standard downloaded from No Text on This Pa
25、geUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULSEPTEMBER 26, 20071UL 1090Standard for Electric Snow MoversFirst Edition August, 1977Second Edition March, 1982Third Edition December, 1986Fourth Edition June, 1994Fifth EditionSeptember 26, 2
26、007An effective date included as a note immediately following certain requirements is one established by Underwriters Laboratories Inc.Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most
27、 recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. 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
28、-Line Collaborative Standards Development System (CSDS) at http:/.COPYRIGHT 1977, 2007 UNDERWRITERS LABORATORIES INC.SEPTEMBER 26, 2007ELECTRIC SNOW MOVERS - UL 109013This PDF Standard downloaded from No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
29、 WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope . .62 Components . .63 General . .73.1 Units of measurement . .73.2 Undated referencs . .74 Glossary . .7CONSTRUCTION5 Frame and Enclosure . .85.1 General . .85.2 Metallic enclosures . .95.3 Polymeric enclosures . .95.4 Battery enclosures . .95.
30、5 Handles . .106 Accessibility of Uninsulated Live Parts and Film-Coated Wire . .117 Mechanical Assembly . .178 Protection Against Corrosion . .199 Supply Connections . .199.1 General . .199.2 Flexible cord . .199.3 Attachment plug . .209.4 Strain relief . .209.5 Bushings . .2110 Battery Leads and C
31、onnectors . .2111 Batteries . .2212 Live Parts . .2213 Internal Wiring . .2313.1 General . .2313.2 Insulation . .2313.3 Splices and connections . .2414 Electrical Insulation . .2515 Motors . .2516 Switches and Controls . .2617 Lampholders . .2618 Capacitors . .2619 Spacings . .2720 Grounding . .29PR
32、OTECTION AGAINST INJURY TO PERSONSGENERAL21 General . .30This PDF Standard downloaded from CONSTRUCTION22 Enclosures and Guards . .3123 Rotating Parts . .3124 Switches and Controls . .31PERFORMANCE25 Reliability of Parts . .32PERFORMANCE26 General . .3327 Leakage Current Test . .3328 Starting Curren
33、t Test . .3529 Continuity of Ground Connection . .3630 Impeller Stopping Test . .3631 Input Test . .3632 Dielectric Voltage-Withstand Test . .3733 Temperature Test . .3734 Resistance to Moisture Test . .4135 Abnormal Operation Test . .4536 Handle Tests . .4537 Strain Relief Test . .4638 Push-Back Re
34、lief Test . .4639 Switches and Controls . .4740 Attachment Plug Test . .4841 Accelerated Aging Test . .5042 Permanency of Marking . .51POLYMERIC ENCLOSURES43 General . .5144 Polymeric Materials as Covered by 44.1.1 44.4.7 . .5244.1 Mold stress evaluation . .5244.2 Resistance to impact . .5244.3 Abnormal oper