1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1429 Pullout SwitchesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
2、 OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Pullout Switches, UL 1429 Fourth Edition, Dated April 18, 2000 SUMMARY OF TOPICS This revision to ANSI/UL 1429 is being issued to update the title page to reect the reaffirmation of ANSI approval. No changes in requirements have
3、been made. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the
4、 date on which the changed requirement becomes effective. These revisions are substantially in accordance with Proposal(s) on this subject dated May 31, 2013. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, el
5、ectronic, mechanical photocopying, 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
6、be liable for any special, 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 possibil
7、ity of such damage. In 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, liab
8、ility, damage, claim, 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, ta
9、bles, 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 effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIRE
10、MENTS notice. AUGUST 2, 2013 UL 1429 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 2, 2013 UL 1429 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
11、 APRIL 18, 2000 (Title Page Reprinted: August 2, 2013) 1 UL 1429 Standard for Pullout Switches First Edition December, 1985 Second Edition October, 1988 Third Edition October, 1994 Fourth Edition April 18, 2000 This ANSI/UL Standard for Safety consists of the Fourth edition including revisions throu
12、gh August 2, 2013. The most recent designation of ANSI/UL 1429 as a Reaffirmed American National Standard (ANS) occurred on August 2, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions
13、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 Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should
14、be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 1429-2009 (R2013)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
15、OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 12, 2005 PULLOUT SWITCHES - UL 1429 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope 6A 2 Components 6A 3 Units of Measurement .8 4 Refer
16、ences .8 CONSTRUCTION 5 General 8 6 Enclosure 9 6.1 General .9 6.2 Doors and covers .10 7 Bases Insulating Material .10 8 Operating Mechanism 11 9 Disconnecting Means .12 10 Overcurrent Protection .14A 11 Current-Carrying Parts 15 11.1 General .15 11.2 Wiring terminals 16 12 Equipment Grounding Term
17、inals 20 13 Field Conversion 22 14 Spacings 23 15 Insulating Barriers 25 16 Wiring Space .27 17 Wire Bending Space 29 18 Provision for Bonding for Enclosed Pullout Switches 31 PERFORMANCE 19 General 32 20 Heating Test .34 21 Heating With Fuses Test 36 21.1 30 and 60 A Class H fuses 36 21.2 Class CC,
18、 G, J, and R fuses .36 22 Overload-Cycle-Heating Test .37 23 Overload Test 37 24 Endurance Test .40A 25 Dielectric Voltage-Withstand Test .44 26 Short-Circuit Withstand Test .45 27 Low Level Dielectric Voltage-Withstand Test .46 28 Closing Test .46 29 Low Level Dielectric Voltage-Withstand Test .46
19、30 Test Calibration .46 31 Strength of Insulating Base and Support Test 46 32 Bonding Continuity Test .47 33 Clamped Joint Test .47 SEPTEMBER 12, 2005 PULLOUT SWITCHES - UL 1429 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE HI
20、GHER THAN 10 kA AVAILABLE FAULT CURRENT CIRCUITS 34 General 47 35 Close-Open Test .47 36 Dielectric Voltage-Withstand Test .48 37 Short-Circuit Withstand Test .48 38 Low Level Dielectric Voltage-Withstand Test .50 39 Closing Test .50 40 Low Level Dielectric Voltage-Withstand Test .50 41 Galvanometer
21、s .52 42 Circuit Measurement Verication 53 43 Calibration of Test Circuit 53 43.1 Details 53 43.2 Current .53 43.4 Voltage .55 43.5 Power factor .55 43.6 Recovery voltage .56 RATINGS 44 General 57 45 Voltage 57 46 Current 57 47 Horsepower 58 48 Withstand 58A MARKINGS 49 Details .59 49.1 Location .59
22、 49.2 Position indication 60 49.3 Short circuit ratings .62 49.4 Enclosures environmental type designations .63 49.5 Service equipment use 64 49.6 Accessories .64 49.7 Terminations .65 49.8 Special markings .67 50 Permanence of Marking .67 APPENDIX A Standards for ComponentsA1 JULY 28, 2005 PULLOUT
23、SWITCHES - UL 1429 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 18, 2000 PULLOUT SWITCHES - UL 1429 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Th
24、is page intentionally left blank. SEPTEMBER 12, 2005 PULLOUT SWITCHES - UL 1429 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover non-enclosed and enclosed pullout switches of the detachable t
25、ype. 1.2 These requirements cover pullout switches rated 600 V or less, 400 A or less, with or without horsepower ratings, and with or without high-available fault current ratings. 1.2 revised July 28, 2005 1.3 These requirements cover pullout switches mounted in complete enclosure. Such an enclosur
26、e may contain meter sockets or neutral assemblies or both. 1.4 These requirements also cover enclosed pullout switches intended for use as service equipment. 1.5 These requirements cover non-enclosed pullout switches for use as mains and branches in panelboards, switchboards, and the like. 1.6 This
27、standard does not cover hinged pullout switches. Such switches are covered in the Standard for Enclosed and Dead-Front Switches, UL 98. 1.7 These requirements do not cover enclosed pullout switches containing more than one independent switch which are covered by the Standard for Panelboards, UL 67.
28、1.8 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re or of electric shock or injury to persons shall be evaluated using appropriate additional component and en
29、d-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conict with specic requirements or provisions of this standard does not comply with this standard. Revision of
30、 requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. S
31、ee Appendix A for a list of standards covering components generally 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 characteristic not required in the application of the component in the product covered
32、 by this standard, or b) Is superseded by a requirement in this standard. JULY 28, 2005 PULLOUT SWITCHES - UL 1429 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.3 A component shall be used in accordance with its rating established for
33、the intended conditions of use. 2.4 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 shall be used only under those s
34、pecic conditions. JULY 28, 2005 PULLOUT SWITCHES - UL 1429 6BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 28, 2005 PULLOUT SWITCHES - UL 1429 7 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
35、STRIBUTION 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. 4 References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall
36、be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 5 General 5.1 A pullout switch shall employ materials throughout that are acceptable for the particular use. 5.2 All parts of a pullout switch shall be assembled in place when the switch is shipped from the fact
37、ory, except as noted in 5.3. 5.3 A pullout switch may have provision for factory or eld-installed accessories, such as neutral assemblies, provided that: a) The pullout switch is for use with or without such assemblies, b) Each accessory is acceptable for the intended use, c) Each accessory can be i
38、nstalled without the disassembly of factory-assembled parts and without the use of a special tool unless such a tool and instructions for its use are furnished with each accessory, d) A barrier that is necessary because spacings would otherwise be less than required, or for any other reason, is secu
39、rely attached at the factory to either the switch or to the accessory to be installed, e) The accessory is an essentially complete unit and does not require detailed assembly in the eld. An arrangement that requires cutting, splicing of existing wires, or resoldering of connections is not acceptable
40、, and f) The accessory and switch are marked in accordance with 49.6.1. 5.4 With reference to 5.3, screws for mounting the neutral assembly must be furnished with that assembly but need not be assembled in place. 5.5 A Class CTL pullout switch shall have a size or conguration that, in conjunction wi
41、th the physical means provided in a Class CTL panelboard, prevents the installation of more switch poles than that number for which the assembly is designed and rated. MAY 7, 2009 PULLOUT SWITCHES - UL 1429 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERM
42、ISSION FROM UL 5.6 Live parts of the fuse, including the fuse ferrules, shall not be relied upon to perform the switching function of a pullout switch. 5.6 effective June 1, 2010 JUNE 3, 2009 PULLOUT SWITCHES - UL 1429 8AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
43、 WITHOUT PERMISSION FROM UL MAY 7, 2009 PULLOUT SWITCHES - UL 1429 8B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6 Enclosure 6.1 General 6.1.1 An overall enclosure shall comply with the Standard for Enclosures for El
44、ectrical Equipment, UL 50, except for modications and additional requirements as specially described in this Standard. 6.1.2 The entire enclosure of a switch intended for surface mounting and the box proper of a switch intended for ush mounting may be formed of sheet steel not less than 0.042 inch (
45、1.07 mm) thick, excluding any coating thickness, if: a) The length does not exceed 18 inches (457 mm) and the width does not exceed 14 inches (356 mm), b) No surface of the box proper has an area of more than 252 square inches (1626 cm 2 ), c) The depth of the box proper is not more than 5 inches (1
46、27 mm), and d) The thickness of a cover, front, door, trim and the like, provided as part of an enclosure intended for ush mounting is as specied in Table 15.1 of the Standard for Enclosures for Electrical Equipment, UL 50. 6.1.2 revised July 28, 2005 6.1.3 The enclosure of a pull-out switch shall e
47、nclose completely all current-carrying parts, whether dead or alive, when a detachable pull-out member is closed. A pull-out switch member shall be so constructed that no live part will be exposed to unintentional contact by the operator when the pull-out switch member is in any position. See Operat
48、ing Mechanism, Section 8. 6.1.4 The enclosure shall include a deadfront shield that will allow access to a switch handle without exposing live parts of the wiring. 6.1.5 A deadfront shall be supported independently of any support that will be provided by units that may be eld-installed. The deadfron
49、t shall be so constructed that it can be readily installed and removed without the likelihood of contacting an uninsulated live part or injuring the insulation of any insulated live part inside the enclosure. 6.1.6 An enclosed pullout switch marked with a Type 3S enclosure designation in addition to complying with the requirements in UL 50 shall have an operating mechanism, if such is provided, that will support the additional weight of the ice and withstand removal of ice by a hand tool to gain a
