1、 AEROSPACE STANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378 ISSUED 2004-04REAFFIRMED 2009-09 CUSTODIAN: SAE AE-8/AE-8A FEDERAL SUPPLY CLASS5935/6150 AS21378 SHEET 1 OF 7 PROCUREMENT SPECIFICATION: MIL-C-7974NOTICE THIS DOCUMENT HAS BEEN TAKEN DIRECTLY FR
2、OM U.S. MILITARY SPECIFICATION MS 21378 (USAF), REVISION A AND CONTAINS ONLY MINOR EDITORIAL AND FORMAT CHANGES REQUIRED TO BRING IT INTO CONFORMANCE WITH THE PUBLISHING REQUIREMENTS OF SAE TECHNICAL STANDARDS. THE INITIAL RELEASE OF THIS DOCUMENT IS INTENDED TO REPLACE MS 21378 (USAF), REVISION A.
3、ANY PART NUMBERS ESTABLISHED BY THE ORIGINAL SPECIFICATION REMAIN UNCHANGED. THE ORIGINAL MILITARY SPECIFICATION WAS ADOPTED AS AN SAE STANDARD UNDER THE PROVISIONS OF THE SAE TECHNICAL STANDARDS BOARD (TSB) RULES AND REGULATIONS (TSB 001) PERTAINING TO ACCELERATED ADOPTION OF GOVERNMENT SPECIFICATI
4、ONS AND STANDARDS. TSB RULES PROVIDE FOR (A) THE PUBLICATION OF PORTIONS OF UNREVISED GOVERNMENT SPECIFICATIONS AND STANDARDS WITHOUT CONSENSUS VOTING AT THE SAE COMMITTEE LEVEL, AND (B) THE USE OF THE EXISTING GOVERNMENT SPECIFICATION OR STANDARD FORMAT. UNDER DEPARTMENT OF DEFENSE POLICIES AND PRO
5、CEDURES, ANY QUALIFICATION REQUIREMENTS AND ASSOCIATED QUALIFIED PRODUCTS LISTS ARE MANDATORY FOR DOD CONTRACTS. ANY REQUIREMENT RELATING TO QUALIFIED PRODUCTS LISTS (QPLS) HAS NOT BEEN ADOPTED BY SAE AND IS NOT PART OF THIS SAE TECHNICAL DOCUMENT. SAE TechnicalStandards Board Rules provide that: “T
6、his report is published by SAE toadvance thestate of technical andengineering sciences.The use of thisreport is entirely voluntary, andits applicabilityandsuitability forany particularuse, including any patent infringement arising therefrom, is thesole responsibility oftheuser.” SAE reviews each tec
7、hnical report at least every five yearsat which time it may be reaffirmed, revised, orcancelled. SAE invites yourwritten commentsandsuggestions. Copyright 2009 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any fo
8、rm or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/
9、www.sae.org SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS21378 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE ST
10、ANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378 AS21378SHEET 2 OF 7THIS MILITARY STANDARD IS APPROVED FOR USE BY DIRECTORATE OF ELECTRONIC SUPPORT 2750 ABW/ESP, DEPARTMENT OF THE AIR FORCE, AND IS AVAILABLE FOR USE BY ALL DEPARTMENTS AND AGENCIES OF THE D
11、EPARTMENT OF DEFENSE. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378 AS21378SHEET 3 OF 7Copyr
12、ight SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378 AS21378SHEET 4 OF 7Copyright SAE International Prov
13、ided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378 AS21378SHEET 5 OF 7TABLE I CABLES AND PLUGS LUG TERMINALS PARTNO.A,B,C,NWIRESI
14、ZEWIRESABCWIRENLFEET0.5PLUG TYPEITEMMS21378-8 0 MS20659-118 MS20659-135 110 MOLDED FEMALEOUTPUT CABLE-12-1500 MS20659-120 MS20659-136 2560MOLDED FEMALEOUTPUT CABLE-21 0 - - 75 MOLDED MALE THEN METHOD 302 INSULATION RESISTANCE AT 500 VDC, 100 MEGOHM MIN. AMBIENT: 255C, DRY. 18. DESIGN OF MALE PLUG SH
15、ROUD SHALL BE INTEGRALLY MOLDED ONTO THE PLUG. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD PLUGS AND CABLE ASSEMBLIES, EXTERNAL POWER, AIRCRAFT, 230/400 VOLT, 400 HERTZ AS21378
16、 AS21378SHEET 7 OF 719. PINS E AND F ARE FOR DEAD CABLE CONTROL AND GENERATION OUTPUT CONTACTOR CONTROL. THE OUTPUT CABLES SHALL USE QUALIFIED MS 20659 TERMINAL LUGS AS SPECIFIED IN MIL-T-7928. THE TERMINAL SIZES SHALL BE AS SPECIFIED IN TABLE I FOR THE LARGE WIRES AND SHALL BE MS 20659-106 FOR THE
17、SIZE 12 WIRES. THE LARGE LUGS SHALL BE CRIMPED WITH THE MS 25441 TOOL AND RELATED MS 90485 CRIMPING DIES. THE SIZE 12 LUG SHALL BE CRIMPED WITH THE MIL-C-22520/24 TOOL. THE PROCEDURE FOR PERFORMING THE CRIMP SHALL BE AS SPECIFIED IN NAVAIR TECHNICAL MANUAL 01-1A-505 OR USAF TECHNICAL MANUAL (USAF) T
18、O. 1-1A-14. 20. IDENTIFICATION SHALL BE ACCOMPLISHED BY EITHER HOT STAMP MARKING OR INK STAMPED HEAT SHRINK TUBING ON THE WIRE INSULATION. 21. SHAPE OF OUTSIDE PERIMETER OF MALE PLUG IS OPTIONAL, PROVIDED IT FALLS WITHIN THE RANGE OF THE SPECIFIED DIMENSIONS. 22. SHAPE OF OUTSIDE PERIMETER OF FEMAL
19、E PLUG BEHIND INTERFACE AREA IS OPTIONAL, PROVIDED IT FALLS WITHIN THE RANGE OF THE SPECIFIED DIMENSIONS. 23. OUTSIDE PERIMETER BEHIND INTERFACE AREA MAY INCREASE GRADUALLY. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
