1、AEROSPACE STANDARD (R) CONDUIT, FLEXIBLE, RADIO FREQUENCY SHIELDING AS25064Copyright 2011 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, o
2、r otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1999-07REAFFIRMED 2009-11 REVISED 2011-07THIRD A
3、NGLE PROJECTION CUSTODIAN: AE-8A REV.AFEDERAL SUPPLY CLASS 5975 AS25064SHEET 1 OF 3REV. APROCUREMENT SPECIFICATION: NONESAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse ofthis report is entirely voluntary,
4、 andits applicability and suitability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay bereaffirmed, revised, orcancelled. SAE invites yourwrittencomments andsu
5、ggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS25064ARATIONALE REVISION REQUIRED TO CLARIFY TECHNICAL REQUIREMENTS AND ADDRESS REFERENCES NOTICE AS25064 PROVIDES PERFORMANCE REQUIREMENTS FOR AS25067 ASSEMBLIES, REQU
6、IRES NO QUALIFICATION, AND HAS NO PROCUREMENT SPECIFICATION FIGURE 1 CONDUIT, FLEXIBLE, RADIO FREQUENCY SHIELDING TABLE 1 AS25064 CONDUIT CONFIGURATION MS PART NO. INSIDE DIA(NOMINAL) A B BENDING RADIUS(INSIDE) MAXWEIGHT MAX LBPER FT MAX MIN MAX MIN MS25064-3 3/16 .373 .350 .188 .172 1.625 .140 MS25
7、064-4 1/4 .435 .401 .250 .235 2.000 .180 MS25064-5 5/16 .513 .490 .328 .313 2.000 .205 MS25064-8 3/8 .560 .538 .375 .360 2.125 .242 MS25064-10 5/8 .833 .810 .625 .610 2.500 .406 MS25064-12 3/4 .958 .935 .750 .745 3.000 .457 MS25064-16 1 1.256 1.236 1.000 .985 3.875 .710 MS25064-18 1-1/8 1.411 1.387
8、1.156 1.141 5.125 .820 MS25064-22 1-3/8 1.688 1.658 1.375 1.360 5.625 .950 ABLENGTH AS REQUIREDCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD AS25064SHEET 2 OF 3REV. A(R) CONDUIT,
9、 FLEXIBLE, RADIO FREQUENCY SHIELDING REQUIREMENTS: 1. DIMENSIONS ARE INCHES 2. PERFORMANCE: IN ACCORDANCE WITH A-A-52440 (*CID=COMMERCIAL ITEM DESCRIPTION) AND MIL-STD-464, THE FOLLOWING REQUIREMENTS APPLY: A. RADIATED INTERFERENCE. THE SHIELDING PROPERTIES TEST OF THE CONDUIT SHALL BE CONDUCTED IN
10、ACCORDANCE WITH THE TEST REQUIREMENTS FOR RADIATED INTERFERENCE LIMITS OUTLINED IN MIL-STD-464. A 10-FOOT LENGTH OF CONDUIT, HAVING A AS25065 FERRULE AND A AS25066 NUT ASSEMBLED ON EACH END, SHALL BE INSERTED IN A SIMULATED ENGINE TEST SETUP. THE TEST SHALL CONSIST OF REPEATEDLY FIRING A SHIELDED SP
11、ARK PLUG WITH THE CONDUIT IN THE HIGH-TENSION SIDE OF THE SETUP. THE SPARK PLUG SHALL BE OPERATED IN A PRESSURE BOMB UNDER A SPARK PLUG SETTING AND BOMB PRESSURE APPROXIMATING THAT NORMALLY ENCOUNTERED IN AN ENGINE. THE MAGNETO USED SHALL BE A BENDIX-SCINTILLA MODEL NO. DF18LN, OR EQUAL, AND SHALL B
12、E SUITABLY SHIELDED. THE CONDUIT SHALL BE CAPABLE OF SATISFACTORILY LIMITING ANY RADIATED INTERFERENCE TO WITHIN THE LIMITS SPECIFIED. B. VIBRATION ENDURANCE. THE VIBRATION APPARATUS SHALL CONSIST OF A SUITABLE DEVICE FOR MOUNTING AND VIBRATING THE CONDUIT ASSEMBLY THROUGH THE FOLLOWING RANGES (SEE
13、FIGURE 2 AND 3): (1) 0.100-INCH DOUBLE AMPLITUDE (TOTAL EXCURSION) FROM 5 TO 10 HZ. (2) 0.060-INCH DOUBLE AMPLITUDE FROM 10 TO 60 HZ. (3) 11G VIBRATORY ACCELERATION FROM 60 TO 75 HZ. (4) 15G VIBRATORY ACCELERATION FROM 75 TO 100 HZ. (5) 20G VIBRATORY ACCELERATION FROM 100 TO 500 HZ. C. THE SAME COND
14、UIT SAMPLE AS USED IN THE SHIELDING PROPERTIES TEST SHALL BE MOUNTED ON THE VIBRATION STAND AS SHOWN IN FIGURE 3. THE CONDUIT SHALL BE SECURED TO THE STAND AT THE TWO BENDING POINTS AND AT THE FERRULES ON EACH END. THE FREQUENCY OF VIBRATION SHALL BE VARIED SLOWLY FROM 5 TO 500 AND BACK TO 5 HZ WITH
15、 THE AMPLITUDES SHOWN IN FIGURE 2. IF RESONANT FREQUENCIES ARE ENCOUNTERED, THE STAND SHALL BE VIBRATED FOR A PERIOD OF 12 HOURS WITH THE APPLIED DOUBLE AMPLITUDE OR VIBRATORY ACCELERATION AS SHOWN ABOVE. WHEN MORE THAN ONE RESONANT FREQUENCY IS ENCOUNTERED, THE TEST MAY BE CARRIED OUT AT THE MOST S
16、EVERE RESONANCE, OR THE PERIODS MAY BE DIVIDED AMONG THE RESONANT FREQUENCIES, WHICHEVER IS CONSIDERED MOST LIKELY TO PRODUCE FAILURE. AT THE END OF THE 12-HOUR PERIOD, THE STAND SHALL BE VIBRATED WITH AN APPLIED DOUBLE AMPLITUDE OF 0.018 INCH AND A FREQUENCY OF 150 HZ FOR AN ADDITIONAL PERIOD OF 13
17、8 HOURS. AT THE END OF THIS TEST, THE CONDUIT SHALL BE AGAIN SUBJECTED TO THE SHIELDING PROPERTIES TEST AND SHALL MEET THE REQUIREMENTS SPECIFIED THEREIN. QUALITY ASSURANCE: FOR EACH DELIVERY, THE SUPLIER MUST CERTIFY ALL REQUIREMENTS OF PARAGRAPHS 2.3 TO 2.6.2 OF A-A-52440 AND REQUIREMENTS 2A AND 2
18、B HAVE BEEN VERIFIED BY TEST DATA GENERATED NO LONGER THAN 2 YEARS PRIOR TO PRODUCTION OF THE PART SUPPLIED. APPLICATION: CONDUIT IS ASSEMBLED IN ACCORDANCE AS25067 USING AS25066 LOCKNUTS, AS25065 COLLAR AND FERRULES. SPECIFICATION NOTE: A CHANGE BAR (|) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENI
19、ENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN
20、 ORIGINAL PUBLICATIONS NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD AS25064SHEET 3 OF 3REV. A(R) CONDUIT, FLEXIBLE, RADIO FREQUENCY SHIELDING FIGURE 2 RANGE CURVES FOR VIBRATION TESTS FIGURE 3 VIBRATION ENDURANCE TEST SETUP ADBCDIRECTION OFVIBRATIONCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
