1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 964 Electrically Heated BeddingUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
2、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electrically Heated Bedding, UL 964 Twelfth Edition, Dated August 31, 2011 Summary of Topics This revision of UL 964 is being issued to include the following changes in requirements: Revision to bedding wire temperature
3、 The effective date for UL LLC will be announced through Industry File Review Announcement Letter. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The revised requirements are substantially in accordance with Prop
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8、roduced 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 other elements of the Standard having future effective dates as indicated in the note followi
9、ng 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that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JUNE 5, 2015 UL 964 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUT
10、ION WITHOUT PERMISSION FROM UL JUNE 5, 2015 UL 964 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 31, 2011 (Title Page Reprinted: June 5, 2015) 1 UL 964 Standard for Electrically Heated Bedding First Edition M
11、ay, 1933 Second Edition June, 1935 Third Edition September, 1942 Fourth Edition October, 1950 Fifth Edition December, 1954 Sixth Edition November, 1968 Seventh Edition September, 1975 Eighth Edition August, 1981 Ninth Edition March, 1988 Tenth Edition November, 1994 Eleventh Edition January, 2000 Tw
12、elfth Edition August 31, 2011 This UL Standard for Safety consists of the Twelfth Edition including revisions through June 5, 2015. 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
13、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, and rights regarding those Standards shall remain the so
14、le and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED F
15、OR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Components 5 3 Units of Measurement .6 4 Undated References 7 5 Glossary .7 CONSTRUCTION 6 Covering of Electrical Parts 7 7 Insulation 8 8 Spacings .9 9 Temperature Limitation .10 10 Control Units .
16、12 11 Switches .15 12 Internal Wiring 16 13 Supply, Control, Pigtail, and Interconnecting Cords .16 14 Connections 20 PERFORMANCE 15 General 21 16 Input Test 24 17 Control Impact and Calibration Test .24 18 Control Units Tests .24 19 Normal Temperature Test 26 19.1 Blankets, sheets, quilts, and comf
17、orters .26 19.2 Mattresses, foot warmers, and mattress pads 27 20 Flexing Test 28 20.1 General .28 20.2 Flexing of mattresses .32 21 Connector Flexing Test 32 22 Throw Blanket Cord Flexing Test .34 23 Leakage Current Test (All Products Except Mattresses) .36 24 Dielectric Voltage-Withstand Test (All
18、 Products Except Mattresses) .37 25 Laundering (All Products Except Mattresses) .37 26 Roller Flexing Test (Mattresses, Mattress Pads, and Foot Warmers) 38 27 Leakage Current Test Repeated (All Products Except Mattresses) 38 28 Dielectric Voltage-Withstand Test Repeated (All Products Except Mattress
19、es) 39 29 Normal Temperature Test Repeated (All Products) 39 30 Immersion Test (Blankets, Sheets, Quilts, and Comforters) 39 31 Abnormal Temperature Tests 39 31.1 General .39 31.2 First method of folding 40 31.3 Second and third method of folding .42 31.4 Three thickness and ve thickness fold .43 31
20、.5 Multi-thickness fold .45 31.6 Bunch test .45 31.7 Fully blanketed .47 AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 31.8 Disabled control 47 32 Pull Out Test .47 33 Final Mattress Te
21、sts 49 34 Flammability of Shells .49 35 Ease of Ignition Test 59 36 Effect of Cleaning Solvents on Bedding Tests (All Products Except Mattresses) 62 37 Thermostats in Bedding .63 38 Abnormal Operation Test for Products Employing Semiconductor Heater Wire .66 39 Push-Back Strain Relief Test .67 MANUF
22、ACTURING AND PRODUCTION LINE TESTS 40 Polarization Continuity Check Test 68 RATINGS 41 Details .68 MARKINGS 42 Details .68 APPENDIX A Standards for ComponentsA1 AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHO
23、UT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electrically heated blankets, comforters, quilts, sheets, mattress pads, mattresses, foot warmers, throw blankets and similar bedding. 1.2 These products are for use in accordance with the National Electrical Code, ANSI/NFPA 70,
24、 on single-phase alternating-current supply circuits operating at a nominal potential of 110 to 120 V ac. 1.3 All bedding is cord-connected and is supplied with either a switch or one or two user-adjustable temperature-control units. Bedding may be thermostatically controlled. 1.4 Bedding intended f
25、or connection to other than a nominal 120 V ac supply voltage, and bedding for use with waterbeds, mechanical beds and the like, are to be subject to additional investigation, with consideration given to their intended use. 2 Components 2.1 A component of a product covered by this standard shall: a)
26、 Comply with the requirements for that component as indicated in this standard; b) Be used in accordance with its rating(s) established for the intended conditions of use; c) Be used within its established use limitations or conditions of acceptability; d) Additionally comply with the applicable req
27、uirements of this end product standard; and e) Not contain mercury. Specic components are incomplete in construction 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
28、shall be used only under those specic conditions. Exception No. 1: A component of a product covered by this standard is not required to comply with a specic component requirement that: a) Involves a feature or characteristic not required in the application of the component in the product; b) Is supe
29、rseded by a requirement in this standard; or c) Is separately investigated when forming part of another component, provided the component is used within its established ratings and limitations. Exception No. 2: A component complying with a component standard other than those cited in this standard i
30、s acceptable if: a) The component also complies with the applicable component standard identied in this standard; or b) The component standard: AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FRO
31、M UL 1) Is compatible with the ampacity and overcurrent protection requirements NFPA 70, where appropriate; 2) Considers long-term thermal properties of polymeric insulating materials in accordance with Polymeric Materials - Long Term Property Evaluations, UL 746B; and 3) Any use limitations of the
32、other component standard is identied and appropriately accommodated in the end use application. For example, a component used in a household application, but intended for industrial use and complying with the relevant component standard may assume user expertise not common in household applications.
33、 2.2 A component that is also intended to perform other functions, such as over current protection, ground-fault circuit-interruption, surge suppression, any other similar functions, or any combination thereof, shall comply additionally with the requirements of the applicable standard(s) that cover
34、devices that provide those functions. Exception: Where these other functions are not required for the application and not identied as part of markings, instructions, or packaging for the appliance, the additional component standard(s) need not be applied. 2.3 A component not anticipated by the requi
35、rements of this standard, not specically covered by the component standards identied in this standard, and that involves a potential risk of electric shock, re, or personal injury, shall be additionally investigated in accordance with the applicable standard. 2.4 With regard to a component being add
36、itionally investigated, reference to construction and performance requirements in another end product standard is appropriate where that standard anticipates normal and abnormal use conditions consistent with the application of this standard. 2.5 Materials used in a Class 105 (A) insulation system s
37、hall comply with the Normal Temperature Test, Section 19. Materials used in an insulation system that operates above Class 105 (A) temperatures shall comply with the Standard for Systems of Insulating Materials - General, UL 1446. 3 Units of Measurement 3.1 Values stated without parentheses are the
38、requirement. Values in parentheses are explanatory or approximate information. AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Undated References 4.1 Any undated reference to a code or
39、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 purposes of this Standard, the following denition applies. 5.2 CLASS 2 SUPPLY A secondary circuit supplied by a Class 2 power supply that c
40、omplies with the Standard for Class 2 Power Units, UL 1310. 5.3 LOW-VOLTAGE CIRCUIT A circuit involving a potential of not more than 30 volts and supplied by a primary battery, by a standard Class 2 transformer, or by a combination of a transformer and a xed impedance that, as a unit, complies with
41、all the performance requirements for a Class 2 transformer. A circuit derived from a line-voltage circuit by connecting resistance in series with the supply circuit as a means of limiting the voltage and current is not considered to be a low-voltage circuit. 5.4 SEMICONDUCTOR HEATER WIRE A heating e
42、lement consisting of two conductors separated by a conductive material which has a rapid non-linear increase in resistance when the temperature is raised through a particular range. 5.5 THROW BLANKET An electric blanket intended for use in indoor locations but not specically for use only on beds. El
43、ectric throw blankets are typically smaller in overall size than blankets intended for use on beds. The length is typically less than 75 inches (109.5 cm) and/or the width is typically less than 38 inches (96.5 cm). CONSTRUCTION 6 Covering of Electrical Parts 6.1 Except for the connector attached to
44、 the bedding, all electrical parts of the bedding shall be enclosed in a shell or other covering of a fabric in which there are no openings. All stuffing, padding, springs, and similar nonelectrical components of bedding shall be outside this covering and shall not be detrimental to the covering or
45、its electrical contents. 6.2 All seams in the fabric enclosing electrical parts shall be strongly stitched or otherwise equivalently secured. AUGUST 31, 2011 ELECTRICALLY HEATED BEDDING - UL 964 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
46、UL 7 Insulation 7.1 Electrical insulation is to be considered with respect to its acceptability for the particular application. If it is necessary to investigate a material to determine whether it is acceptable, consideration is to be given to its mechanical strength, dielectric properties, insulati
47、on resistance, heat-resistant qualities, the degree to which it is enclosed or protected, and any other features having a bearing on the risk of re, electric shock, and injury to persons involved, in conjunction with conditions of actual service. All of these factors are to be considered with respec
48、t to thermal aging. 7.2 Ordinary vulcanized ber may be used for insulating bushings, washers, separators, and barriers, but not as the sole support for uninsulated live parts where shrinkage, current leakage, or warpage may introduce a risk of re or electric shock. Thermoplastic materials are not co
49、nsidered to be acceptable for the sole support of uninsulated live parts, unless they have been found to have the necessary strength and rigidity, resistance to heat, resistance to ame propagation, dielectric properties, and other properties acceptable for the application. All of these factors are to be considered with respect to thermal aging. 7.3 An insulating liner shall be acceptable for the purpose. Vulcanized ber or a similar material employed where spacings would otherwise
