1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1416 Overcurrent and Overtemperature Protectors for Radio- and Television- Type Appliances STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
2、WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Overcurrent and Overtemperature Protectors for Radio- and Television- Type Appliances, UL 1416 Sixth Edition, Dated October 29, 1999 SUMMARY
3、 OF TOPICS This revision to ANSI/UL 1416 is being issued to reect the recent reaffirmation of UL 1416 as an American National Standard. No changes have been made to the requirements within this standard. The new and revised requirements are substantially in accordance with Proposal(s) on this subjec
4、t dated November 4, 2016. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means,
5、electronic, 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 U
6、L 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 possib
7、ility 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, li
8、ability, 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. JANUARY 6, 2017 UL 1416 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
9、R DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 6, 2017 UL 1416 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 29, 1999 (Title Page Reprinted: January 6, 2017) 1 UL 1416 Standard for Overcurrent and Overtem
10、perature Protectors for Radio- and Television- Type Appliances The First edition was titled Standard for Overcurrent and Overtemperature Protectors for Radio and Television Receiving Appliances and Other Electronic Equipment and numbered UL 492.6. First Edition October, 1974 Second Edition January,
11、1976 Third Edition December, 1978 Fourth Edition February, 1986 Fifth Edition September, 1994 Sixth Edition October 29, 1999 This ANSI/UL Standard for Safety consists of the Sixth Edition including revisions through January 6, 2017. The most recent designation of ANSI/UL 1416 as a Reaffirmed America
12、n National Standard (ANS) occurred on January 6, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. 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 Req
13、uest in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. 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 Standard
14、s shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 1416-2012 (R2017)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 6, 2017 UL 1416 2 No Text on This PageUL COPYRIGHTED MATERIA
15、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Glossary .7 3 Components 8 4 Units of Measurement .8 5 References .8 CONSTRUCTION 6 General 8 7 Live Parts .8A 8 Insulating Material .9 9 Corrosion Protection .9 10 Mounting 9 11 B
16、ushings 9 12 Spacings 10 12.1 General .10 12.2 Barriers .10 13 Flammability Classication of Materials 10 PERFORMANCE ALL PROTECTORS 14 General 11 15 Hot-Wire Ignition Test .11 16 Arc Resistance Test .11 16.1 General .11 16.2 Low-voltage arcing test .11 17 Resistance to Moisture Test 11 18 Strain Rel
17、ief of Leads and Connectors Test 12 19 Torque Test 12 MULTIPLE-OPERATION, MANUAL-RESET OVERTEMPERATURE PROTECTORS 20 Calibration Verication .12 21 Endurance Test 12 22 Calibration Reverication 14 23 Limited Short-Circuit Test 14 24 Dielectric Voltage-Withstand Test .15 25 Positive Opening Test .15 2
18、6 Overload Test 15 MULTIPLE-OPERATION, SELF-RESETTING OVERTEMPERATURE PROTECTORS 27 Calibration Verication .16 28 Endurance Test 16 29 Calibration Reverication 16 30 Limited Short-Circuit Test 16 JANUARY 6, 2017 UL 1416 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
19、 WITHOUT PERMISSION FROM UL 31 Dielectric Voltage-Withstand Test .17 32 Positive Opening Test .18 33 Overload Test 18 TWO-TERMINAL, MANUAL-RESET OVERCURRENT PROTECTORS 34 General 18 35 Calibration Verication and Calibration Reverication 18 36 Overload Test 19 37 Dielectric Voltage-Withstand Test .19
20、 38 Positive Opening Test .20 39 Limited Short-Circuit Test 20 TWO-TERMINAL, SELF-RESETTING OVERCURRENT PROTECTORS 40 General 21 41 Calibration Verication and Calibration Reverication 21 42 Overload Test 22 43 Dielectric Voltage-Withstand Test .22 44 Positive Opening Test .23 45 Limited Short-Circui
21、t Test 23 THREE- OR MORE-TERMINAL (TWO-OR MORE-ELEMENT) OVERCURRENT PROTECTORS 46 General 24 MULTIPLE-FUNCTION PROTECTORS 47 General 25 MANUFACTURING AND PRODUCTION TESTS 48 General 25 49 Production-Line Dielectric Voltage-Withstand Test 25 RATING 50 Details .26 MARKING 51 Details .26 Appendix A Sta
22、ndards for ComponentsA1 JANUARY 6, 2017 UL 1416 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 29, 1999 UL 1416 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSIO
23、N FROM UL This page intentionally left blank. MARCH 21, 2006 UL 1416 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements apply to overtemperature protectors, and overcurrent protectors to be employed
24、in radio- and television-type appliances in applications where the protectors are relied upon to limit power, current, or both and where the equipment is to be supplied by a maximum 20 A branch circuit. Compliance with these requirements is not to be regarded as indication that an overcurrent or ove
25、rtemperature protector would be acceptable in the end-use product. 1.2 The acceptability of any protector covered by these requirements in any particular component, device, or appliance depends upon the conditions of continued use that prevail in actual service. Accordingly, for a particular applica
26、tion, the protector may be affected by the requirements for the component, device, or appliance in question, and it may be necessary to employ protective devices having features other than or in addition to those specied in these requirements. 1.3 These requirements do not apply to thermal cutoffs (
27、single-operation meltable-type overtemperature devices). Thermal cutoffs are covered in the Standard for Thermal-Links Requirements and Application Guide, UL 60691. 1.3 revised March 21, 2006 1.4 Deleted January 21, 2004 2 Glossary 2.1 OVERCURRENT PROTECTOR A device that: a) Is intended for free sta
28、nding use, b) Is current sensitive, and c) Is intended to be reset or is self-resetting following operation. Operation is the interrupting of a circuit(s) when the current owing through it exceeds a preselected value. 2.2 OVERTEMPERATURE PROTECTOR A device intended for freestanding use or for instal
29、lation in components and that interrupts a current ow when it attains a predetermined temperature. It may be resettable or self-resetting following operation but shall not be of the single-operation type. MARCH 21, 2006 UL 1416 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST
30、RIBUTION WITHOUT PERMISSION FROM UL 3 Components 3.1 Except as indicated in 3.2, a component of a product covered by this Standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this Standard
31、. 3.1 added October 29, 1999 3.2 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 by this standard, or b) Is superseded by a requirement in this standard. 3.3 A compon
32、ent shall be used in accordance with its rating established for the intended conditions of use. 3.3 added October 29, 1999 3.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such
33、 as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3.4 added October 29, 1999 4 Units of Measurement 4.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 5 References Sec
34、tion 5 added October 29, 1999 5.1 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. CONSTRUCTION 6 General 6.1 Each protector shall be complete and shall include a means for con
35、nection. 6.2 Each manually operated reset protector shall be trip-free; that is, the automatic tripping shall be independent of the manipulation or position of the reset button, handle, lever, and the like. 6.3 6.2 does not preclude the acceptance of a protector in which the contacts return automati
36、cally to the closed position after acceptable operating conditions have been restored if the reset button, handle, lever, and the like is held in the reset position. JANUARY 21, 2004 UL 1416 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7
37、 Live Parts 7.1 Current-carrying parts shall be manufactured of materials that are capable of meeting the operating conditions of the particular application (for example, with respect to mechanical strength and ampacity). 7.2 Uninsulated live parts, including terminals, shall be secured to their sup
38、porting surfaces by methods other than friction between surfaces so that they are kept from turning or shifting in position if such motion may result in reduction of spacings to less than those required elsewhere in this standard. The security of contact assemblies that open in service shall be such
39、 as to maintain the continued alignment of contacts. A positive keying arrangement or the equivalent is required for maintenance of contact assembly alignment. JANUARY 21, 2004 UL 1416 8AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUAR
40、Y 21, 2004 UL 1416 8B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 8 Insulating Material 8.1 A base for the support of current-carrying parts shall be insulating material that is able to withstand the conditions of act
41、ual service. Strength, ammability, arc resistance, moisture resistance, and resistance to hot-wire ignition are among the characteristics that shall be considered. 8.2 Insulating material, including barriers between parts of different potential and material that may be subject to the inuence of the
42、arc formed by the opening of the interruption mechanism, shall be capable of meeting the operating conditions for the particular application. Among things that shall be considered are ammability and performance under the overload and limited short-circuit tests, and the arc-, moisture, and hot-wire-
43、, ignition tests described in Sections 13 and 15 17. 9 Corrosion Protection 9.1 Iron and steel parts shall be protected against corrosion by enameling, galvanizing, cementation, plating, or other equivalent means. Exception: Corrosion protection shall not be provided when it is detrimental to the op
44、eration. 9.2 9.1 applies to all enclosing cases and to other parts upon which acceptable mechanical operation may depend. It does not apply to small minor parts of iron or steel, such as washers, screws, bolts, and the like that are not current-carrying, if the deterioration of such unprotected part
45、s is not likely to result in a risk of re or electric shock or inability of the device to operate, but the protection of all such parts is recommended. Parts made of stainless steel (polished or treated if necessary) do not require additional protection against corrosion. 10 Mounting 10.1 Performanc
46、e of a protector shall not be affected by strain, pressure, or torsion on terminals or leads. Bolts, screws, or other parts used for mounting a protector shall be independent of those used for securing parts of the assembly (in other words, the mounting means shall not be the assembly means). 11 Bus
47、hings 11.1 Any opening in a nonmetallic compartment wall for lead passage shall be smooth and free of sharp edges that may damage the wire. 11.2 If conductors pass through an opening in a sheet-metal wall that is 0.042 inch (1.07 mm) or less thick, they shall be held away from the edges of the openi
48、ng, or shall be protected by a bushing, a grommet, or by rolling the edge of the metal at the opening not less than 120 degrees. A bushing, if used, shall be securely held in place. 11.3 An insulating bushing shall be not less than 3/64 inch (1.2 mm) thick. 11.4 The edges of an opening in sheet meta
49、l thicker than 0.042 inch (1.07 mm) shall be treated to reduce the possibility of abrasion of the insulation by the removal of burrs, ns, and sharp edges. OCTOBER 29, 1999 UL 1416 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 12 Spacings 12.1 General 12.1.1 The minimum spacings between any uninsulated live part and an uninsulated live part of different potential or an uninsulated dead metal part that is not conductively connected to
