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 entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, 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.QUESTIONS REGARDING THIS DOCUMENT: (412) 772-8512 FAX: (412) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (412) 776-4970 FAX: (412) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1993 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001RECOMMENDEDPRACTICESubmitted for recognition as an American National Sta
4、ndardJ539REV.NOV93Issued 1939-01Revised 1993-11Superseding J539 MAR87VOLTAGES FOR DIESEL ELECTRICAL SYSTEMSForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeThis SAE Recommended Practice is intended to apply to lamps, batteries, heate
5、rs, radios, andsimilar equipment for operation with mobile or automotive diesel engines. Twenty-four V systems have longbeen used for heavy-duty services because 24 V permit operating 12 V systems in series-parallel. Thirty-twoV systems have been used for marine, railroad-car lighting, and other use
6、s.Generators, storage batteries, starting motors, lighting, and auxiliary electrical equipment shall be for nominalsystem ratings of 12, 24, or 32 V as determined by the power requirements of the application. It isrecommended that no intermediate voltages be considered.The combination of a 24 V star
7、ting motor and two 12 V batteries connected in series for cranking is consideredpractical where it can be adapted to the installation. The batteries are reconnected in parallel for chargingfrom a 12 V generator/alternator and for operating lights and other auxiliary equipment, or charged separatelya
8、nd used individually for lights and other electrical equipment.2. ReferencesThere are no referenced publications specified herein.3. Notes3.1 Marginal IndiciaThe change bar (l) located in the left margin is for the convenience of the user in locatingareas where technical revisions have been made to
9、the previous issue of the report. An (R) symbol to the leftof the document title indicates a complete revision of the report.PREPARED BY THE SAE CRANKING MOTOR STANDARDS COMMITTEESAE J539 Revised NOV93RationaleNot applicable.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationThis
10、SAE Recommended Practice is intended to apply to lamps, batteries, heaters, radios, andsimilar equipment for operation with mobile or automotive diesel engines. Twenty-four V systems havelong been used for heavy-duty services because 24 V permit operating 12 V systems in series-parallel.Thirty-two V systems have been used for marine, railroad-car lighting, and other uses.Reference SectionThere are no referenced publications specified herein.Developed by the SAE Cranking Motor Standards Committee
