ANSI UL 1054-2013 UL Standard for Safety Special-Use Switches (Seventh Edition Reprint with revisions through and including October 24 2013).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1054 Special-Use SwitchesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC

2、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Special-Use Switches, UL 1054 Seventh Edition, Dated March 18, 2013 Summary of Topics Revision pages have been published for UL 1054 to issue a new transmittal page that documents the established withdrawal date for the stand

3、ard. THE STANDARDS TECHNICAL PANEL RESPONSIBLE FOR UL 1054 AND UL 61058-1 HAS DETERMINED THAT AS OF JUNE 23, 2015, UL 1054 SHALL BE WITHDRAWN AND SHALL NOT BE USED FOR A PRODUCTS EVALUATION. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a ver

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9、s 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 following the affected item. The prior text for requirements that have been revised and that have a future effectiv

10、e date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. OCTOBER 24, 2013 UL 1054 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 24, 2013 UL 1054 tr2 No Text on This PageUL COPYRIGHTED MATERIAL

11、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 18, 2013 (Title Page Reprinted: October 24, 2013) 1 UL 1054 Standard for Special-Use Switches First Edition November, 1973 Second Edition November, 1977 Third Edition August, 1985 Fourth Edition January, 1991 F

12、ifth Edition May, 1995 Sixth Edition August, 2003 Seventh Edition March 18, 2013 This ANSI/UL Standard for Safety consists of the Seventh Edition including revisions through May 6, 2013. The most recent designation of ANSI/UL 1054 as a Reaffirmed American National Standard (ANS) occurred on March 18

13、, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. 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 copyright

14、s, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. 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 Deve

15、lopment System (CSDS) at http:/. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 1054-2008 (R2013)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 24, 2013 SPECIAL-USE SWITCHES - UL 1054 2 No Text on This PageUL COPYRIGHTED MATE

16、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Glossary .5 3 Components 6 4 General Requirements for All Switches 6 CONSTRUCTION 5 Enclosure 6 5.1 General .6 5.2 Lining .7 6 Thermoplastic Materials 7 7 Nonmetallic Parts .8 8

17、 Sealing Compound 8 9 Live Parts 8 9.1 General .8 9.2 Terminals and leads 9 9.3 Push-in terminals .9 9.4 Quick-connect terminals 10 10 Insulating Material 10 11 Assembly 11 11.1 General .11 11.2 Actuating members .11 12 Spacings 11 PERFORMANCE 13 General 12 14 Testing Circuits .14 14.1 General .14 1

18、4.2 Tungsten-lament-lamp load .15 14.3 Synthetic load .16 15 Tests on Nonmetallic Parts 17 15.1 Mold stress 17 15.2 Diaphragms .17 16 Overload Test 18 17 Endurance Test 20 18 Continuity Test .21 19 Temperature Test .21 19.1 General .21 19.2 Push-in terminals .22 19.3 Quick-connect terminals .22 19.4

19、 Steel terminals .23 20 Dielectric Voltage-Withstand Test .23 21 Limited Short-Circuit Test 24 22 Pull Test .25 22.1 Push-in terminals .25 22.2 Quick-connect terminals .25 23 Effect of Heat on Actuating Members .26 MARCH 18, 2013 SPECIAL-USE SWITCHES - UL 1054 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED

20、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL RATING 24 General 26 MARKING ALL SWITCHES 25 General 27 26 Supplementary Marking .27 26.1 Tungsten marking 27 26.2 AC only identication .28 HEATER SWITCHES 27 General 28 TELEVISION SWITCHES 28 General 28 29 Construction .29 29.1 In

21、sulating material 29 29.2 Openings 29 29.3 Wire leads .30 30 Performance .30 30.1 General .30 30.2 Test conditions .30 30.3 Overload 31 30.4 Endurance 31 30.5 Temperature .31 30.6 Dielectric voltage withstand 31 30.7 Continued endurance .31 30.8 Dielectric voltage withstand (repeated) .32 31 Rating

22、.32 32 Marking 32 REPLACEMENT SWITCHES 33 General 32 34 Construction .32 35 Rating .33 36 Package Marking .33 37 Instructions 33 37.1 General .33 37.2 Installation instructions 33 MARCH 18, 2013 SPECIAL-USE SWITCHES - UL 1054 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRI

23、BUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover manually operable and mechanical operable special-use switches and replacement switches: a) That are for use on direct current as well as on alternating current or on alternating current only, and b) For which the lo

24、ad ratings do not exceed 60 A at 250 V or a lower potential and 30 A or 2 hp at 600 V or a lower potential. 1.2 These requirements cover special-use switches intended for use in devices or appliances which conform with the requirements applicable to such equipment. A special-use switch is intended f

25、or factory installation in equipment and is not intended for eld installation or eld replacement of a similar switch. A vacuum-cleaner-handle switch, a heater switch, a radio or television switch, and a through-cord switch that has more than one on or one off position are examples of special-use swi

26、tches. 1.3 These requirements cover replacement switches which are intended for eld replacement of special-use switches used as part of devices and appliances. Only single or double pole, single or double throw switches are covered. Replacement switches are not for use in safety circuits. 1.4 These

27、requirements do not cover general-use snap switches covered by the Standard for General-Use Snap Switches, UL 20. 1.5 These requirements do not cover through-cord switches with one on and one off position, special-use dimmer switches, or switches constructed so that they can be installed readily in

28、a ush-device box or an outlet-box cover or can otherwise be used in a wiring system that complies with the National Electrical Code, NFPA 70. 2 Glossary 2.1 For the purpose of this standard the following denitions apply. 2.2 ACTUATING MEMBER The part of the operating mechanism that extends outside t

29、he body of the switch and is intended to be exposed to contact by the operator. 2.3 CURRENT-INRUSH FACTOR The number by which the normal (steady-state) peak current through a tungsten-lament-lamp load is multiplied to obtain the peak value of the inrush current through the load. 2.4 PUSH-IN (SCREWLE

30、SS) TERMINAL A wire terminal that automatically locks a stripped conductor when it is inserted in the terminal. 2.5 SAFETY CIRCUIT A primary or secondary circuit that is relied upon to reduce the risk of re, electric shock, or injury to persons, or risk of electrical energy or excessive radiation em

31、ission, microwave or X-radiation. Examples include an interlock circuit, a circuit that limits leakage current to accessible parts, a circuit that limits the wattage to a limited-energy circuit, or a phase control or other circuit designed to limit temperatures in the end-use equipment to appropriat

32、e levels. 2.6 TELEVISION SWITCH A switch intended for use as a supply-circuit control switch in a radio or television-receiving appliance. MARCH 18, 2013 SPECIAL-USE SWITCHES - UL 1054 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Compo

33、nents 3.1 A component of a product covered by this standard shall comply with the requirements for that component, and shall be used in accordance with its recognized rating and other limitations of use. A component need not comply with a specic requirement that: a) Involves a feature or characteris

34、tic not needed in the application of the component in the switches covered by this standard; or b) Is superseded by a requirement in this standard. 3.2 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3.3 Any undated reference t

35、o 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. 3.4 In the following text, a requirement that applies only to a switch for a specic use, such as in a heating appliance or in a radio or television-re

36、ceiving appliance, is so identied by a specic reference in that requirement to the use involved. Absence of such specic reference or use of the term switch indicates that the requirement applies to all switches covered by this standard unless the context indicates otherwise. 4 General Requirements f

37、or All Switches 4.1 Requirements under this heading apply to all switches covered by this standard. They are supplemented in subsequent sections with requirements applying exclusively to heater switches, television switches, and special-use dimmer switches. 4.2 A switch shall employ materials that a

38、re acceptable for the intended use. CONSTRUCTION 5 Enclosure 5.1 General 5.1.1 A metal enclosure of a switch (such as the shell of a pendant-type switch) shall not be less than 0.013 in (0.33 mm) thick. Thicker metal shall be employed to provide strength and rigidity if the size or shape of the encl

39、osure requires an increased metal thickness. 5.1.2 A switch intended to be exposed to a specic environment shall comply with the applicable requirements in the Standard for Enclosures for Electrical Equipment, UL 50. MARCH 18, 2013 SPECIAL-USE SWITCHES - UL 1054 6UL COPYRIGHTED MATERIAL NOT AUTHORIZ

40、ED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.2 Lining 5.2.1 All conductive material on the inside surface of a part of the enclosure that is removable for wiring shall be lined completely with insulation not less than 1/32 in (0.8 mm) thick. The thickness of the insulatio

41、n is to be measured by means of a machinists micrometer caliper having a at-ended spindle and a rounded anvil. Exception: The lining of a switch may be less than 1/32 in (0.8 mm) thick if of a material other than paper or ber that has been shown to be acceptable for the application, and may be omitt

42、ed if there is a spacing of not less than 1/4 in (6.4 mm) between any uninsulated live part and the metal enclosure. 5.2.2 An insulating lining shall be secured so that it will remain in place under conditions of ordinary service and prevent the enclosure from becoming a live part even if a wire ins

43、ide the switch should become loose or detached from its position. 6 Thermoplastic Materials 6.1 A thermoplastic material used in a switch shall comply with the requirements in Table 6.1. Exception: A thermoplastic material with a ammability Class of less than V-2 as required in Table 6.1 used in a s

44、witch with material that complies with the applicable 3/4-in ame test specied in the Standard for Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C, complies with the requirement. Table 6.1 Minimum ammability class for a thermoplastic material Function Minimum ammability class a E

45、nclosure or support of current-carrying parts V-2 b A functional part other than an enclosure or support of current- carrying parts HB b a The ammability Class is determined at a minimum thickness of 0.8 mm (0.031 in) or the minimum thickness employed in the construction, whichever is greater. b In

46、accordance with the applicable requirements in the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94. MARCH 18, 2013 SPECIAL-USE SWITCHES - UL 1054 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FR

47、OM UL 7 Nonmetallic Parts 7.1 A nonmetallic material employed either in the actuation mechanism or for the sole support of a current-carrying part of a switch shall have a Relative Thermal Index (RTI) electrical, or mechanical without impact acceptable for its intended use. The RTI for a material is

48、 to be determined in accordance with the Standard for Polymeric Materials Long Term Property Evaluations, UL 746B, at the minimum thickness employed in the construction. Also, the switch shall comply with Mold Stress, Section 15.1. Exception: A mold stress test need not be conducted for a material t

49、hat is intended to be used at a temperature below 50C (122F) or below the generic RTI for the material specied in the Standard for Polymeric Materials Long Term Property Evaluations, UL 746B. 8 Sealing Compound 8.1 Live screwheads or nuts on the underside of a base constructed for surface mounting shall be: a) Countersunk not less than 1/8 inch (3.2 mm) in the clear, and covered with a waterproof, insulating sealing compound that has a softening point of 65C (149F) or high