ANSI UL 961-2014 UL Standard for Safety Electric Hobby and Sports Equipment (Fifth Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 961 Electric Hobby and Sports EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU

2、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Hobby and Sports Equipment, UL 961 Fifth Edition, Dated December 5, 2014 Summary of Topics This new edition UL 961, the Standard for Electric Hobby and Sports Equipment, incorporates editorial and organ

3、izational revisions. The revised requirements are substantially in accordance with Proposal(s) on this subject dated September 19, 2014. 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 p

4、hotocopying, recording, or otherwise without 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 spec

5、ial, incidental, consequential, indirect or 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

6、 no event shall ULs liability for any damage 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,

7、or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or ot

8、her 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, and are preceded by a SUPERSEDED REQUIREMENTS notice. DECEMBER

9、 5, 2014 UL 961 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 5, 2014 UL 961 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL December 5, 2014 1

10、UL 961 Standard for Electric Hobby and Sports Equipment First Edition July, 1982 Second Edition May, 1990 Third Edition May, 1995 Fourth Edition August, 2000 Fifth Edition December 5, 2014 This ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL 961 as a

11、n American National Standard (ANSI) occurred on December 5, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals

12、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 printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships

13、, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 961-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 5, 2014 ELECTRIC HOBBY AND SPOR

14、TS EQUIPMENT - UL 961 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Components 5 3 Units of Measurement .6 4 Undated References 6 5 Glossary .6 CONSTRUCTION 6 Enclosure 6 7 Accessibi

15、lity of Parts 7 8 Mechanical Assembly 13 9 Protection Against Corrosion 14 10 Power-Supply Connections Cord-Connected Products .14 10.1 Cords and plugs .14 10.2 Strain relief 15 10.3 Bushings 16 11 Power-Supply Connections Permanently-Connected Products 17 11.1 General .17 11.2 Field-wiring compartm

16、ents .17 11.3 Field-wiring terminals and leads 17 11.4 Grounded connections 18 11.5 Equipment-grounding .18 12 Grounding .19 13 Current-Carrying Parts 21 14 Internal Wiring 21 14.1 General .21 14.2 Wires .22 15 Insulating Materials .23 15.1 Electrical insulation .23 15.2 Thermal insulation 23 16 Mot

17、ors .23 16.1 General .23 16.2 Overload protection .23 16.3 Brush-holder assembly 25 17 Overcurrent Protection 25 18 Switches and Controls .25 19 Lampholders .26 20 Capacitors .26 21 Secondary Circuits 26 22 Spacings 27 23 Batteries and Battery Chargers .29 24 Attachments 29 25 Sharp Edges and Corner

18、s .30 26 Enclosures and Guards 30 27 Switches, Controls, and Interlocks 31 DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL 961 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 28 General 32 29 Leakage Current Test .33 3

19、0 Humidity Conditioning .36 31 Starting Current Test 36 32 Input Test 37 33 Temperature Test .37 34 Dielectric Voltage-Withstand Test .42 35 Continuity of Ground Connection Test .43 36 Resistance to Moisture Test 43 37 Rain Test 44 38 Abnormal Operation Test 47 39 Strain Relief Test .47 40 Push-Back

20、 Relief Test .48 41 Switches and Controls .48 41.1 Controls for solenoids, relay coils, or the like 48 41.2 Controls for motors .49 42 Materials .49 43 Rotating or Moving Parts 50 44 Parts Subject to Pressure 50 45 Pressure-Relief Devices .51 46 Stability Test .52 47 Impact Test 53 48 Strength of Ha

21、ndles Test 55 MANUFACTURING AND PRODUCTION TESTS 49 Grounding Continuity Test .55 50 Dielectric Voltage-Withstand Test .56 51 Leakage Test 58 RATINGS 52 General 58 MARKINGS 53 Permanence .58 54 Identication .58 55 Fuses .59 56 Switches and Controls .59 57 Power-Supply Cord .59 58 Cautionary Markings

22、 59 INSTRUCTIONS 59 Manufacturers Literature 60 APPENDIX A Standards for ComponentsA1 DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL 961 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements

23、cover electrically-powered hobby and sports equipment rated 250 volts or less for use in ordinary locations in accordance with the National Electrical Code, NFPA 70. 1.2 These requirements cover equipment intended for the home entertainment and amusement of adults. 1.3 These requirements do not cove

24、r toys and games intended to be used by children, amusement machines, photographic equipment, or other products that are covered by separate requirements. 1.4 In the following text, a requirement that does not apply to all of the types of products covered by this standard is identied by a specic ref

25、erence in that requirement to the type or types of product involved. Absence of such specic reference or use of the term product indicates that the requirement applies to all types of products unless the context indicates otherwise. 2 Components 2.1 Except as indicated in 2.2, a component of a produ

26、ct covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components used in the products covered by this standard. 2.2 A component is not required to comply with a specic requirement that: a) Involves a feature or characterist

27、ic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in cons

28、truction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL

29、961 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3.2 Unless otherwise indicated, all volt

30、age and current values mentioned in this standard are root-mean-square (rms). 4 Undated References 4.1 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 that code or standard. 5 Glossary 5.1 For the p

31、urpose of this standard the following denitions apply. 5.2 LINE-VOLTAGE CIRCUIT A circuit involving a potential of not more than 250 volts and having circuit characteristics in excess of those of a low-voltage circuit. 5.3 LOW-VOLTAGE CIRCUIT A circuit involving a peak open-circuit potential of not

32、more than 42.4 volts supplied by: a) A primary battery; b) A Class 2 transformer; or c) A combination of a transformer and a xed impedance that, as a unit, complies with all performance requirements for a Class 2 transformer. A circuit derived from a line-voltage circuit by connecting a resistance i

33、n series with the supply circuit as a means of limiting the voltage and current is not considered a low-voltage circuit. CONSTRUCTION 6 Enclosure 6.1 A product shall have the strength and rigidity necessary to resist the abuses to which it may be subjected, without increasing the risk of re, electri

34、c shock, or injury to persons due to total or partial collapse of the enclosure and resulting reduction of spacing, loosening or displacement of a part, or other malfunction. 6.2 Among the factors taken into consideration when an enclosure is evaluated are its: a) Mechanical strength; b) Resistance

35、to impact; c) Resistance to corrosion; d) Resistance to distortion at temperatures to which the enclosure may be subjected under conditions of normal or abnormal use; and DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL 961 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

36、 DISTRIBUTION WITHOUT PERMISSION FROM UL e) Dielectric properties, insulation resistance, and resistance to arc tracking. 6.3 Cast- and sheet-metal portions of the enclosure shall not be thinner than the applicable value specied in Table 6.1 unless the enclosure is determined to be acceptable when e

37、valuated under the considerations specied in 6.2. Table 6.1 Thickness of metal enclosure Metal Minimum thickness At small, at unreinforced surfaces and at surfaces that are reinforced by curving, ribbing, and the like At relatively large unreinforced at surfaces inch (mm) inch (mm) Die-cast metal 3/

38、64 (1.2) 5/64 (2.0) Cast malleable iron 1/16 (1.6) 3/32 (2.4) Other cast metal 3/32 (2.4) 1/8 (3.2) Uncoated sheet steel 0.026 (0.66) 0.026 (0.66) Galvanized sheet steel 0.029 (0.74) 0.029 (0.74) Nonferrous sheet metal 0.036 (0.91) 0.036 (0.91) 6.4 A nonmetallic enclosure shall comply with the Stand

39、ard for Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C. 7 Accessibility of Parts 7.1 To reduce the likelihood of unintentional contact that may involve a risk of electric shock from uninsulated live parts and lm-coated wire and contact that may involve a risk of injury to perso

40、ns from a moving part, an opening in an enclosure of a product or in a motor shall be investigated as described in (a) or (b). a) For an opening that has a minor dimension (see 7.4) less than 1 inch (25.4 mm), such a part or wire shall not be contacted by the probe illustrated in Figure 7.1. b) For

41、an opening that has a minor dimension of 1 inch or more: 1) A moving part shall be spaced from the opening as specied in Table 7.1, and 2) Neither an uninsulated live part nor lm-coated wire shall be within: i) X inches of the perimeter of the opening; or ii) The volume generated by projecting the p

42、erimeter X inches normal to its plane. X equals ve times the minor dimension of the opening, but not less than 6-1/16 inches (154 mm) see Figure 7.2. Exception No. 1: A motor other than one used in either a hand-held product or a hand-supported portion of a product need not comply with these require

43、ments if it complies with the requirements in 7.2. Exception No. 2: An opening necessary for intended operation of a product need not comply with this requirement. DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL 961 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRI

44、BUTION WITHOUT PERMISSION FROM UL 7.2 With reference to the requirements in 7.1, in the enclosure of a motor: a) An opening that has a minor dimension (see 7.4) less than 3/4 inch (19.1 mm) is acceptable if: 1) A moving part cannot be contacted by the probe illustrated in Figure 7.3; 2) Film-coated

45、wire cannot be contacted by the probe illustrated in Figure 7.4; 3) In a directly accessible motor, an uninsulated live part cannot be contacted by the probe illustrated in Figure 7.5; and 4) In an indirectly accessible motor (see 7.5), an uninsulated live part cannot be contacted by the probe illus

46、trated in Figure 7.3. b) An opening that has a minor dimension of 3/4 inch or more is acceptable if: 1) A moving part is spaced from the opening as specied in Table 7.1; and 2) An uninsulated live part or lm-coated wire is not within: i) X inches of the perimeter of the opening; or ii) The volume ge

47、nerated by projecting the perimeter X inches normal to its plane (see Figure 7.2). X equals ve times the minor dimension of the opening, but not less than 3-5/32 inches (80 mm) for contact with an uninsulated live part through an opening in the enclosure of a directly accessible motor, and 4 inches

48、(102 mm) for all other openings. This is generated text for gtxt. DECEMBER 5, 2014 ELECTRIC HOBBY AND SPORTS EQUIPMENT - UL 961 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 7.1 Articulate probe with web stop DECEMBER 5, 2014 ELECT

49、RIC HOBBY AND SPORTS EQUIPMENT - UL 961 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 7.1 Minimum distance from an opening to a moving part that may involve a risk of injury to persons Minor dimension of opening Minimum distance from opening to part inches (mm) inches (mm) 3/4 (19.1) 4-1/2 (114) 1 (25.4) 6-1/2 (165) 1-1/4 (31.8) 7-1/2 (190) 1-1/2 (38.1) 12-1/2 (318) 1-7/8 (47.6) 15-1/2 (394) 2-1/8 (54.0) 17-1/2 (444) c (c)