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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. SHEET 1 OF 4 AS22759/28 THIRD ANGLE PROJECTION AEROSPACE STANDARD AS22759/28 ISSUED 2
3、001-07 REAFFIRMED 2007-11 WIRE, ELECTRIC, FLUOROPOLYMER-INSULATED, EXTRUDED TFE, POLYIMIDE COATED, SILVER-COATED COPPER CONDUCTOR, 600-VOLT PREPARED BY SAE SUBCOMMITTEE AE-8D FEDERAL SUPPLY CLASS 6145 NOTICE THIS DOCUMENT HAS BEEN TAKEN DIRECTLY FROM U.S. MILITARY SPECIFICATION MIL-W-22759/28, AMEND
4、MENT 1 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 MIL-W-22759/28, AMENDMENT 1. ANY PART NUMBERS ESTABLISHED BY THE ORIGINAL SPECIFI
5、CATION 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 SPECIFICATIONS AND STANDARDS. TSB RULES PROVIDE FOR (A) THE PUB
6、LICATION 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 PROCEDURES, ANY QUALIFICATION REQUIREMENTS AND ASSOCIAT
7、ED 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. Copyright 2007 SAE International All rights reserved. No part of this publication may be reproduced, st
8、ored in a retrieval system or transmitted, in any form 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 E
9、mail: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org WIRE, ELECTRIC, FLUOROPOLYMER-INSULATED, EXTRUDED TFE, POLYIMIDE COATED, SILVER-COATED COPPER CONDUCTOR, 600-VOLT AEROSPACE STANDARD AS22759/28 SHEET 2 OF 4 AS22759/28 The complete requirements for procuring the wire described herein sh
10、all consist of this document and the issue in effect of Specification MIL-W-22759. TABLE I. CONSTRUCTION DETAILS The wires of this specification sheet are presently available in the above-listed solid colors only. Insulation colors blue, violet, gray, and white are not available. See also “COLOR” un
11、der “ADDITIONAL REQUIREMENTS”, page 3 of this specification sheet. WIRE, ELECTRIC, FLUOROPOLYMER-INSULATED, EXTRUDED TFE, POLYIMIDE COATED, SILVER-COATED COPPER CONDUCTOR, 600-VOLT AEROSPACE STANDARD AS22759/28 SHEET 3 OF 4 AS22759/28 TABLE II. PERFORMANCE DETAILS WIRE RATINGS AND ADDITIONAL REQUIRE
12、MENTS TEMPERATURE RATING: 200C (392F) max conductor temperature VOLTAGE RATING: 600 volts (rms) at sea level ABRASION RESISTANCE AFTER IMMERSION: No requirement ACID RESISTANCE: Dielectric test, 3000 volts (rms), 60 Hz BLOCKING: 260 2C (500 3.6F) COLOR: The color limits of MIL-STD-104 are not applic
13、able to the insulation colors of this specification sheet. DIELECTRIC TEST AFTER IMMERSION: 3000 volts (rms), 60 Hz FLAMMABILITY: Post-flame dielectric test not required HUMIDITY RESISTANCE: No requirement IDENTIFICATION OF PRODUCT: White print preferred to provide greater contrast with inherent dar
14、k colors of this wire IDENTIFICATION DURABILITY: 125 cycles (250 strokes) (min), 500 grams weight IMPULSE DIELECTRIC TEST: 8.0 kilovolts (peak), 100% test INSULATION RESISTANCE: 2500 megohms for 1000 ft (min) LIFE CYCLE: Oven temperature, 275 2C (527 3.6F) Dielectric test, 3000 volts (rms), 60 Hz LO
15、W TEMPERATURE (COLD BEND): Bend temperature: -65 2C (-85 3.6F) Dielectric test, 3000 volts (rms), 60 Hz POLYIMIDE CURE TEST: Required. This polyimide coating shall not crack when tested by the procedure shown on page 4 of this specification sheet. For wires of this specification sheet, the polyimide
16、 cure test shall be part of the Group II tests of the MIL-W-22759 Quality Conformance Inspection and shall be subject to the inspection level and acceptable quality level specified for the Group II tests. WIRE, ELECTRIC, FLUOROPOLYMER-INSULATED, EXTRUDED TFE, POLYIMIDE COATED, SILVER-COATED COPPER C
17、ONDUCTOR, 600-VOLT AEROSPACE STANDARD AS22759/28 SHEET 4 OF 4 AS22759/28 SHRINKAGE: 0.03 inch max at 290 2C (554 3.6F) SMOKE: 290C (554F) SPARK TEST OF PRIMARY INSULATION: 1500 volts (rms), 60Hz, 100% test SURFACE RESISTANCE: 5 megohm-inches (min), initial and final readings THERMAL SHOCK: Oven temp
18、erature, 200 2C (392 3.6F) Max change in measurement, 0.060 inch WICKING: No requirement WIRE LENGTH REQUIREMENTS: Schedule A WRAP TEST: “Wrap back” test required, no cracking. For wire sizes 16 and larger, the wrapping shall be accomplished around a mandrel three times the specified maximum diamete
19、r of the wire in lieu of back wrapping on the specimen itself. Oven temperature, 313 2C (595.4 3.6F) Conductor strand adhesion requirements shall be in accordance with 3.6.11 of MIL-W-22759. CURE TEST FOR POLYIMIDE COATING Two hundred milliliters of distilled water together with a few boiling chips
20、or beads shall be placed in a 1 liter Erlenmeyer flask and the flask shall be closed by a rubber stopper fitted with a water cooled reflux condenser. The flask shall be heated by a hot plate or heating mantle until the water is boiling and condensate is returning from the reflux condenser. One end o
21、f an approximately 12 inch length of the wire to be tested shall be inserted into the flask by passing it between the rubber stopper and the side of the flask or through a snugly fitting hole in the stopper, so that 5 inches of the wire length extends into the vapor phase inside the flask. The porti
22、on of the wire inside the flask shall be essentially straight and shall not be in contact with the glass sides of the flask or condenser, the layer of liquid water in the bottom of the flask, or the liquid condensate returning from the condenser. Heating of the flask shall be resumed, with stopper a
23、nd reflux condenser again in place. The portion of wire inside the flask shall be exposed to the vapor phase above the boiling water for exactly one hour and shall then be removed from the flask. A 4 inch specimen shall be cut from the vapor-exposed portion of the wire, avoiding the one inch which w
24、as nearest the rubber stopper during vapor exposure. The 4 inch specimen shall be allowed to cool at room temperature for a minimum of fifteen minutes, after which it shall be wrapped in a tight spiral for six turns or the full length of the specimen, whichever is lesser, around a mandrel which for wire sizes 18 and smaller shall be the specified maximum diameter of the wire and for wire sizes 16 and larger shall be three times the specified maximum diameter of the wire. The specimen shall then be inspected visually for cracks without the aid of magnification.