ANSI UL 275-2013 UL Standard for Safety Automotive Glass-Tube Fuses (Tenth Edition Reprint with Revisions Through and Including November 7 2017)《自动玻璃管式熔断器的安全性标准》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 275 Automotive Glass-Tube FusesUL 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 Automotive Glass-Tube Fuses, UL 275 Tenth Edition, Dated April 19, 2013 Summary of Topics This New Edition of ANSI/UL 275 is being issued to obtain ANSI Approval. No technical changes have been made to this standard. Th

3、e requirements are substantially in accordance with Proposal(s) on this subject dated September 7, 2012. 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 photocopying, recording, or other

4、wise 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 special, incidental, consequential,

5、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 no event shall ULs liability fo

6、r 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, or judgment (including reasonabl

7、e 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 other elements of the Standard hav

8、ing 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. APRIL 19, 2013 UL 275 tr1UL COPYRIGHTED

9、MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 19, 2013 UL 275 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 19, 2013 1 UL 275 Standard for Automotive Glass-T

10、ube Fuses The First through Sixth editions were numbered UL 275B. First Edition January, 1924 Second Edition April, 1938 Third Edition July, 1950 Fourth Edition February, 1952 Fifth Edition December, 1957 Sixth Edition May, 1973 Seventh Edition August, 1978 Eighth Edition June, 1986 Ninth Edition De

11、cember, 1993 Tenth Edition April 19, 2013 This ANSI/UL Standard for Safety consists of the Tenth Edition. The most recent designation of ANSI/UL 275 as an American National Standard (ANSI) occurred on April 19, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Ti

12、tle 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 should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are c

13、opyrighted 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 sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 275-

14、2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 19, 2013 AUTOMOTIVE GLASS-TUBE FUSES - UL 275 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS

15、 INTRODUCTION 1 Scope .4 2 Units of Measurement .4 3 Components 4 4 Undated References 5 CONSTRUCTION 5 Material 5 6 Assembly 5 PERFORMANCE 7 General 6 8 Carrying Capacity .6 9 Overload .6 10 Cycling Test .6 MARKING 11 General .6 APRIL 19, 2013 AUTOMOTIVE GLASS-TUBE FUSES - UL 275 3UL COPYRIGHTED MA

16、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover glass-tube fuses intended for the protection of automotive wire and automotive apparatus. 1.2 These requirements do not cover glass-tube fuses intended for use

17、in circuits rated above 32 volts. 1.3 A product that contains features, characteristics, components, materials, or systems new or different from those in use when the standard was developed and that involves a risk of re, electric shock, or injury to persons shall be evaluated using the appropriate

18、additional component and end-product requirements as determined necessary to maintain the level of safety for the user of the product as originally anticipated by the intent of this standard. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are

19、explanatory or approximate information. 3 Components 3.1 Except as indicated in 3.2, a component of a value covered by this standard shall comply with the requirements for that component. 3.2 A component need not comply with a specic requirement that: a) Involves a feature or characteristic not need

20、ed in the application of the component in the value covered by this standard, or b) Is superseded by a requirement in this standard. 3.3 A component shall be used in accordance with its rating established for the intended conditions of use. 3.4 Specic components are incomplete in construction featur

21、es 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. APRIL 19, 2013 AUTOMOTIVE GLASS-TUBE FUSES - UL 275 4UL COPYRIGHTED MATER

22、IAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Undated References 4.1 Any undated reference to a code or standards appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 5

23、 Material 5.1 Fuse tubes shall be of clear glass. 5.2 Fuse caps shall be of brass or copper. Caps shall be plated with nickel, cadmium, or other material having equivalent electrical and protective properties. 6 Assembly 6.1 Fuse caps shall be tightly attached to the glass tube, and the ends shall b

24、e square and free of excess solder. The caps shall have an outside diameter of 0.25 0.003 inch (6.4 0.08 mm). 6.2 The fuses shall be capable of being passed through a tubular gauge at least as long as the fuse and having a uniform hole 0.258 inch (6.55 mm) in diameter. 6.3 Fuse dimensions shall be i

25、n accordance with Table 6.1 or may be 1-1/4 inch (31.8 mm) in length with the dimensions specied for a 20 ampere rated fuse. Table 6.1 Fuse dimensions Ampere rating Length, inches (mm) 1/32 inch ( 0.8 mm) Cap length, inch (mm) Thickness, inch (mm) Minimum Maximum Minimum 4 5/8 (15.9) 0.255 ( 6.48) 0

26、.225 (5.27) 0.008 (0.20) 6 3/4 (19.1) 0.255 ( 6.48) 0.225 (5.27) 0.008 (0.20) 7-1/2 7/8 (22.2) 0.270 ( 6.86) 0.240 (6.10) 0.008 (0.20) 9 7/8 (22.2) 0.270 ( 6.86) 0.240 (6.10) 0.008 (0.20) 14 1-1/16 (27.0) 0.270 ( 6.86) 0.240 (6.10) 0.008 (0.20) 20 1-1/4 (31.8) 0.270 ( 6.86) 0.240 (6.10) 0.008 (0.20)

27、 30 1-7/16 (36.5) 0.405 (10.29) 0.375 (9.52) 0.015 (0.38) 6.4 Fuse elements shall be clearly visible through the glass tube. APRIL 19, 2013 AUTOMOTIVE GLASS-TUBE FUSES - UL 275 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 7 G

28、eneral 7.1 The following tests are to be conducted in an ambient temperature of 65 90F (18.3 32.2C), and with the fuses in the horizontal position. 7.2 Fuses subjected to the Carrying Capacity Test, Section 8, may be used for the Overload, Section 9, and Cycling Test, Section 10. 8 Carrying Capacity

29、 8.1 The fuses shall carry 110 percent of rated current continuously. 8.2 It is judged that a fuse will carry the current continuously when it has carried the current long enough to produce constant temperatures as determined by a glass-bulb mercury thermometer in contact with the fuse. 9 Overload 9

30、.1 The fuses shall blow in less than 1 hour when carrying 135 percent of rated current. 9.2 Fuses shall blow in less than 10 seconds when carrying 200 percent of rated current. 10 Cycling Test 10.1 Fuses shall not blow during a 50,000 cycle load test. 10.2 Each cycle shall consist of the alternate a

31、pplication of 70 percent of rated amperes and zero load for 10 second intervals. MARKING 11 General 11.1 The manufacturers or private labelers name or identifying symbol and the ampere rating shall be stamped on one cap of each fuse. 11.2 If a manufacturer produces fuses at more than one factory, each fuse shall have a distinctive marking to identify it as the product of a particular factory. APRIL 19, 2013 AUTOMOTIVE GLASS-TUBE FUSES - UL 275 6

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