SAE J2576-2002 Blade Fuses-42 V System.pdf
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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. TO PLACE A DOCUMENT ORDER: +1 (724) 776-4970 FAX: +1 (724) 776-0790 SAE WEB ADDRESS h
3、ttp:/www.sae.org Copyright 2002 Society of Automotive Engineers, Inc. All rights reserved.Printed in U.S.A. SURFACE VEHICLE 400 Commonwealth Drive, Warrendale, PA 15096-0001 RECOMMENDED PRACTICE J2576 ISSUED APR2002 Issued2002-04 Blade Fuses - 42 V System ForewordThis SAE Recommended Practice has be
4、en developed by: the Circuit Protection Task Force of the Circuit Protection and Switching Devices Committee. The objectives of the task force are to develop information reports, recommended practices, and standards concerned with the requirements, design, and testing of circuit protection component
5、s such as fuses, circuit breakers, or other devices of similar purpose that are intended for use in the electrical systems of vehicles. This document is intended as a guide toward the adoption of standard practices and is subject to change so as to keep pace with experience and technical advances. T
6、ABLE OF CONTENTS 1.Scope. 2 2.References. 2 2.1Applicable Documents2 2.1.1SAE Publications 2 2.1.2ASTM Publications . 2 2.1.3ISO Publications.2 2.2Related Publications. 3 2.2.1SAE Publication 3 2.2.2ISO Publication. 3 3.Definitions.3 4.Test Requirements. 7 4.1Test Equipment and Instrumentation 7 4.2
7、General Conditions. 10 4.3Sample Sizes . 10 5.Test Procedures .10 5.1Electrical Testing 10 5.2Mechanical and Environmental Testing 11 6.Performance Requirements 13 6.1Electrical Test Requirements 13 6.2Mechanical and Environmental Test Requirements. 14 SAE J2576 Issued APR2002 -2- 7.General Requirem
8、ents14 7.1Design Parameters .14 7.2Marking and Identification.15 7.3Testing Safety and Operational Advisory .15 8.Test Sequence Chart16 Figure 1Miniature Class Blade Fuse4 Figure 2Standard Class Blade Fuse5 Figure 3Time Lag Class Blade Fuse6 Figure 4Miniature Class Blade Fuse Test Slug7 Figure 5Stan
9、dard Class Blade Fuse Test Slug8 FIgure 6Time Lag Class Blade Fuse Test Slug .9 Figure 7Transient Cycling Test Duty Cycle Format .11 Figure 8Blade Strength Test (Axis Orientation).12 Figure 9Test Sequence Chart16 Appendix A Example of Test Fixture Design17 Figure A1Test Fixture Component Reference D
10、rawing18 1.ScopeThis SAE Recommended Practice defines the blade fuse styles, test conditions, procedures, and performance requirements for use in vehicle electrical power systems designed to the new motor vehicle industry 42 V architecture. The intent of this document is to provide a framework for 5
11、8 V Blade Fuse characteristics, serving the motor vehicle industry to establish standardization with respect to electrical performance and mechanical requirements. This standardization shall lend itself to safe application practices; e.g., prevention of 32 V devices utilized inappropriately in 42 V
12、electrical systems. Both the performance and mechanical requirements expressed herein are for the advancement of mobility engineering and the development of safe application practices. They are not intended for the establishment of design exclusions, patent rights, or franchising that engenders rest
13、raint of trade. 2.References 2.1Applicable PublicationsThe following publications form a part of this specification to the extent specified herein. Unless otherwise specified, the latest issue of SAE publications shall apply. 2.1.1SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendal
14、e, PA 15096-0001 SAE J1034Engine Coolant Concentrate - Ethylene-Glycol Type SAE J1284Blade Type Electric Fuses SAE J1888High Current Time Lag Electric Fuses SAE J2077Miniature Blade Type Electrical Fuses 2.1.2ASTM PUBLICATIONS (OR REFERENCED PROPERTIES)Available from ASTM, 100 Barr Harbor Drive, Wes
15、t Conshohocken, PA 19428-2959. ASTM B 117Method of Salt Spray (Fog) Testing ASTM No. 3 Oil 2.1.3ISO DOCUMENTSAvailable from ANSI, 25 West 43rd Street, New York, NY 10036-8002. ISO 1817 No. 1 Oil ISO 8820-3Road vehiclesFusesPart 3: Fuse-links with tabs (blade-type) SAE J2576 Issued APR2002 -3- 2.2Rel
16、ated PublicationsThe following publications are provided for information purposes only and are not a required part of this specification. 2.2.1SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001 SAE J726Air Cleaner Test Code 2.2.2ISO DOCUMENTAvailable from ANSI, 25 W
17、est 43rd Street, New York, NY 10036-8002. ISO 8820-1Road vehiclesFusesPart 1: Definitions and general test requirements 3.Definitions 3.1FuseA device designed to interrupt the electrical circuit when subjected to over-current. This action is to be nonreversible, and the fuse is intended for replacem
18、ent after the circuit malfunction has been corrected. 3.2Fuse HolderAn electro-mechanical assembly capable of accepting or otherwise providing termination to a fuse device and providing termination capability to an electrical power source. 3.3Insulator BodyAn electrically non-conductive housing (e.g
19、., plastic) that provides a supporting framework for the conductive sections of the fuse assembly. May provide in supplemental fashion, a mechanical design form to facilitate keying or other interface relationship with a fuse holder or other power distribution module assembly, which would serve to d
20、istinguish a 58 V fuse from a 32 V fuse. 3.4Fuse ElementThe section of the fuse conductive path that is by design the most susceptible area to overload current conditions and when subjected to overload current in sufficient amount and duration, becomes disrupted effectively interrupting the current
21、path to a non-conducting state. A 58 V fuse element will provide for safe interruption of current under all conditions of overload. 3.5TerminalThe terminal is that part of the fuse construction that makes the electro-mechanical conductive connection for the fuse assembly to its respective fuse holde
22、r device. The terminals are those portions of the fuse extending from the insulator body on the respective fuse type footprint centerline. 3.6Rated CurrentThe rated current is the maximum continuous current the fuse is capable of passing for the minimum specified time as shown in the test procedures
23、 and performance requirements. It also serves to identify the fuse nominal rated current value. While being a performance and identification value, end use applications and circuit design factors may necessitate a continuous current rating less than the fuse rated current value. 3.7Rated VoltageThe
24、rated voltage is the maximum voltage for which the fuse is designed. For this document, the rated voltage is 58 V. Rated voltage is not necessarily the same as operating voltage, which typically is less than the rated voltage in a vehicular electrical system. Rated voltage allows for the periodic vo
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