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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 there
2、from, 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. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored 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)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org AS4373 REV. C AEROSPACE STANDARD Issued 1993-08 Revised 2007-07 Superseding AS4373B (R) Test Methods for Insulated Electric Wire RATIONALE Addition/modification of aerospace test methods used by industry to harmonize
5、 with European methods. FOREWORD This document contains a series of test methods for aerospace wire which were designed for both process/quality control tests and to assist electrical design personnel in the selection of a wire for use in an individual aerospace vehicle. No one method can predict al
6、l the variables to which a wire can be exposed. These test methods were collected from a number of aircraft manufacturers. Not all of these are needed for all applications in all vehicles. Some will be applicable for one vehicle, some for another. It is intended that the test results from this docum
7、ent will be helpful to the electrical designer in making a selection based on the demonstrated performance of a wire under a variety of conditions. The designer may choose to develop additional tests for any unusual requirements of a new vehicle which are not covered in this document. As such this d
8、ocument should be viewed as a check list of baseline criteria for evaluation purposes. It should be supplemented to reflect requirements not contained herein. A number of the tests contained herein are not short term procedures. As such these tests should be considered for evaluation purposes only,
9、and not as a check on the quality conformance of a wire. This document also contains some new tests that have not been rigorously confirmed as reproducible. Such new tests are identified under the precision and bias statements in the individual test methods. SAE AS4373 Revision C - 2 - TABLE OF CONT
10、ENTS 1. SCOPE5 1.1 Contents5 1.2 Test Method Numbering .5 2. APPLICABLE DOCUMENTS5 2.1 SAE Publications.6 2.2 ASTM Publications6 2.3 ANSI Publications .7 2.4 U.S. Government Publications7 3. INDEX OF SECTIONS AND TEST METHODS7 3.1 Test Methods Group 100 - Assembly, Handling, and Repair Tests .7 3.2
11、Test Methods Group 200 - Chemical, Biological, Radiological/Nuclear, Biological, Chemical (CBR/NBC) 8 3.3 Test Methods Group 300 - Physical Damage Tests.8 3.4 Test Methods Group 400 - Conductor Tests 8 3.5 Test Methods Group 500 - Electrical Tests 8 3.6 Test Methods Group 600 - Environmental Tests8
12、3.7 Test Methods Group 700 - Mechanical Tests.9 3.8 Test Method Group 800 - Thermal Tests9 3.9 Test Methods Group 900 - Weight and Dimensional Tests9 3.10 Test Methods Group 1000 - Wire Identification Marking and Evaluation.10 4. TEST METHODS AND TEST PROCEDURES 10 4.1 Test Methods Group 100 - Assem
13、bly, Handling and Repair Tests 10 4.1.1 Method 101, Concentricity and Wall Thickness10 4.1.2 Method 102, Insulation Bonding to Potting Compounds 11 4.1.3 Method 103, Insulation Pull-Off Force 12 4.1.4 Method 104, Insulation Shrinkage/Expansion 12 4.1.5 Method 105, Solderability .13 4.1.6 Method 106,
14、 Thermal/Mechanical Resistance - Single Wire14 4.1.7 Method 107, Thermal/Mechanical Resistance - Bundle.17 4.1.8 Method 108, Solder Pot Test for Insulation Shrinkage.18 4.1.9 Method 109, Percent Overlap of Insulating Tapes .18 4.2 Test Methods Group 200 - Chemical, Biological and Radiological Tests/
15、Nuclear, Biological and Chemical (CBR/NBC)20 4.3 Test Methods Group 300 - Physical Damage Tests.20 4.4 Test Methods Group 400 - Conductor Tests 20 4.4.1 Method 401, Conductor Diameter.20 4.4.2 Method 402, Conductor Elongation and Tensile Breaking Strength 21 4.4.3 Method 403, Conductor Resistance .2
16、3 4.4.4 Method 404, Conductor Strand Blocking24 4.5 Test Methods Group 500 - Electrical Tests 26 4.5.1 Method 501, Dielectric Constant.26 4.5.2 Method 502, Corona Inception and Extinction Voltages.27 4.5.3 Method 503, Impulse Dielectric.28 4.5.4 Method 504, Insulation Resistance.28 4.5.5 Method 505,
17、 Spark Test of Finished Wire Insulation29 4.5.6 Method 506, Surface Resistance29 4.5.7 Method 507, Time/Current to Smoke30 4.5.8 Method 508, Dry Arc Propagation Resistance31 4.5.9 Method 509, Wet Arc Propagation Resistance.38 4.5.10 Method 510, Voltage Withstand (Wet Dielectric)42 4.5.11 Method 511,
18、 Wire Fusing Time.42 4.5.12 Method 512, Voltage Rating: TO BE DETERMINED.43 4.6 Test Methods Group 600 - Environmental Tests43 4.6.1 Method 601, Fluid Immersion .43 4.6.2 Method 602, Forced Hydrolysis45 4.6.3 Method 603, Humidity Resistance46 4.6.4 Method 604, Weight Loss Under Temperature and Vacuu
19、m.46 SAE AS4373 Revision C - 3 - 4.6.5 Method 605, Propellant Resistance47 4.6.6 Method 606, Weathering Resistance47 4.6.7 Method 607, Wicking 48 4.7 Test Methods Group 700 - Mechanical Tests.49 4.7.1 Method 701, Abrasion.49 4.7.2 Method 702, Cold Bend 49 4.7.3 Method 703, Dynamic Cut-Through50 4.7.
20、4 Method 704, Flex Life51 4.7.5 Method 705, Insulation Tensile Strength and Elongation.53 4.7.6 Method 706, Notch Propagation.54 4.7.7 Method 707, Stiffness and Springback.55 4.7.8 Method 708, Mandrel and Wrapback Test58 4.7.9 Method 709, Wrinkle Test.59 4.7.10 Method 710, Durability of Wire Manufac
21、turers Color and/or Identification 60 4.7.11 Method 711, Durability and Legibility of Wire Installers Identification61 4.7.12 Method 712, Bend Test.64 4.8 Test Methods Group 800 - Thermal Tests65 4.8.1 Method 801, Flammability.65 4.8.2 Method 802, High Pressure/High Temperature Air Impingement (Burs
22、t Duct)66 4.8.3 Method 803, Smoke Quantity .68 4.8.4 Method 804, Relative Thermal Life and Temperature Index68 4.8.5 Method 805, Thermal Shock Resistance69 4.8.6 Method 806, Property Retention After Thermal Aging70 4.8.7 Method 807, Multi-day Heat Aging Test (Life Cycle)71 4.8.8 Method 808, Blocking
23、 .72 4.8.9 Method 809, Lamination Sealing 73 4.8.10 Method 810, Topcoat Cure.73 4.8.11 Method 811, Cross-link Proof Test .74 4.8.12 Method 812, Flame Resistance76 4.8.13 Method 813, Insulation State of Sinter79 4.9 Test Methods Group 900 - Wire Diameter and Weight 80 4.9.1 Method 901, Finished Wire
24、Diameter .80 4.9.2 Method 902, Finished Wire Weight.81 4.10 Test Methods Group 1000 - Wire Identification Marking and Evaluation.81 4.10.1 Method 1001, Wire Marking Contrast.81 5. NOTES86 APPENDIX A 87 TABLE 1 7 TABLE 2 8 TABLE 3 8 TABLE 4 8 TABLE 5 9 TABLE 6 9 TABLE 7 9 TABLE 8 10 TABLE 9 13 TABLE1
25、0 ELECTRICAL CONNECTION.33 TABLE 11 CIRCUIT RESISTANCE .33 TABLE 12 ELECTRICAL CONNECTION.40 TABLE 13 CIRCUIT RESISTANCE .40 TABLE 14 FLUID TABLE .44 TABLE 15 57 TABLE 16 60 TABLE 17 65 TABLE 18 MAXIMUM RECOMMENDED VALUES .70 TABLE 19 70 TABLE 20 72 -,-,- SAE AS4373 Revision C - 4 - FIGURE 1 THERMAL
26、/MECHANICAL RESISTANCE TEST SETUP.15 FIGURE 2 TWO SUGGESTED PLACEMENTS FOR SNAP SWITCH TO START TIMER 15 FIGURE 3 CONTINUITY DETECTION CIRCUIT FOR SOLDER IRON RESISTANCE TEST .16 FIGURE 4 FORMULA FOR CALCULATING PERCENT OVERLAP.19 FIGURE 5 TYPICAL 7-STRAND CONDUCTOR AFTER BIRDCAGING (NO STRANDS BLOC
27、KED).25 FIGURE 6 BLADE 34 FIGURE 7 ALUMINUM BLADE SHARPENING FIXTURE.35 FIGURE 8 BUNDLE CONFIGURATION35 FIGURE 9 BUNDLE TYING36 FIGURE 10 TEST FIXTURE.36 FIGURE 11 ELECTRICAL CONNECTION.37 FIGURE 12 BALL SLIDE BLADE FIXTURE.37 FIGURE 13 BUNDLE CONFIGURATION39 FIGURE 14 BUNDLE TYING40 FIGURE 15 ELECT
28、RICAL CONNECTION.41 FIGURE 16 FLEX LIFE TEST SETUP .52 FIGURE 17 NOTCHING TOOL55 FIGURE 18 TEST FIXTURE FOR STIFFNESS AND SPRINGBACK TEST .56 FIGURE 19 STIFFNESS AND SPRINGBACK TEST FIXTURE BASE PLATE.57 FIGURE 20 WRAP BACK TEST 59 FIGURE 21 CLAMP DEVICE FOR PRINT DURABILITY TEST63 FIGURE 22 ELECTRI
29、CAL CONNECTIONS FOR TEST METHOD 802 .67 FIGURE 23 TYPICAL SAMPLE ARRANGEMENT 71 FIGURE 24 TYPICAL SAMPLE ARRANGEMENT 75 FIGURE 25 FLAME RESISTANCE TEST FIXTURE .77 FIGURE 26 BURNER DETAILS.78 FIGURE 27 LIGHTING EQUIPMENT.83 FIGURE 28 CONTRAST MEASUREMENT ON WIRE SPECIMEN MARKINGS85 -,-,- SAE AS4373
30、Revision C - 5 - 1. SCOPE This standard describes test methods for insulated, single conductor, electric wire intended for aerospace applications. Particular requirements for the wire being tested need to be specified in a procurement document or other detail specification. Suggested minimum require
31、ments are included in the notes at the end of some of the test methods. SAE Performance Standard AS4372 uses some of the tests in this document for evaluating comparative performance of aerospace wires. 1.1 Contents This document is comprised of the following Sections: 1. Scope including Contents an
32、d Numbering System 2. Applicable Documents 3. Index of Sections and Test Methods 4. Test Methods and Test Procedures 1.2 Test Method Numbering The test methods are assigned numbers, such as 101, 102, etc., from the applicable group as follows: a. Group 100: Assembly, Handling, and Repair Tests b. Gr
33、oup 200: Chemical, Biological, Radiological (CBR) Tests c. Group 300: Physical Damage Tests d. Group 400: Conductor Tests e. Group 500: Electrical Tests f. Group 600: Environmental Tests g. Group 700: Mechanical Tests h. Group 800: Thermal Tests i. Group 900: Weight and Dimensional Tests j. Group 10
34、00: Wire Identification Marking and Evaluation 2. APPLICABLE DOCUMENTS The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the
35、purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE AS4373 Revision C - 6 -
36、 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS1424 Anti-Icing and Deicing-Defrosting Fluid AS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for A
37、ircraft AS3320 Stud - Straight, Ring Locked, CRES AMS 5731, .250-20UNJC X .250-28UNJF AS4372 Performance Requirements for Wire, Electric, Insulated Copper or Copper Alloy AS4851 Relative Thermal Life and Temperature Index for Insulated Electric Wire AS5649 Wire and Cable Marking Process, UV Laser AS
38、22759/35 Wire, Electrical, Fluoropolymer-Insulated, Crosslinked Modified ETFE, Normal Weight, Silver-Coated, High-Strength Copper Alloy, 200C, 600 Volt AS25244 Circuit Breaker, Trip-Free, Push-Pull, 5 Thru 50 Amp, Type I AS25281 Clamp, Loop, Plastic, Wire Support AS58091 Circuit Breaker, Trip Free,
39、Aircraft, General Specification for AS50881 Wiring, Aerospace Vehicle J1966 Lubricating Oils, Aircraft Piston Engines (Non-Dispersant Mineral Oil) 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.a
40、stm.org. ASTM D 412 Rubber Properties in Tension, Standard Test Method for ASTM D 471 Standard Test Fluids ASTM D 638 Tensile Properties of Plastics, Test Method for ASTM D 910 Aviation Gasoline, Standard Specification for ASTM D 1153 Methyl Isobutyl Ketone, Standard Specification for ASTM D 1868 De
41、tection and Measurement of Partial Discharge (Corona) Pulse in Evaluation of Insulation Systems, Standard Test Method for ASTM D 3032 Hookup Wire Insulation, Standard Test Method for ASTM D 4814 Gasoline, Automotive, Combat ASTM F 814 Specific Optical Density of Smoke Generated by Solid Materials fo
42、r Aerospace Applications Standard Test Method for ASTM G 53 Operating Light- and Water-Exposure Apparatus (Fluorescent UV-Condensation Type) for Exposure of Non-metallic Materials, Standard Practice for SAE AS4373 Revision C - 7 - 2.3 ANSI Publications Available from American National Standards Inst
43、itute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642- 4900, www.ansi.org. TT-I-735 Isopropyl Alcohol 2.4 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, h
44、ttp:/assist.daps.dla.mil/quicksearch/. MIL-C-43616 Cleaning Compound, Aircraft Surface MIL-DTL-5624 Turbine Fuel, Aviation Grades JP-4, JP-5 and JP-5/JP-8 ST MIL-DTL-83133 Turbine Fuels, Aviation, Kerosene Types, NATO F-34(JP-8) and NATO F-35 MIL-PRF-5606 (Inactive for New Design) Hydraulic Fluid, P
45、etroleum Base, Aircraft, Missile and Ordnance Hydrocarbon Base, Aircraft, Metric, NATO Code Number H-537 MIL-PRF-7808 Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code Number 0-148 MIL-PRF-23699 Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code Number 0-156 MIL-PR
46、F-87252 Coolant Fluid, Hydrolytically Stable, Dielectric MIL-PRF-87937 Cleaning Compounds, Aircraft Exterior Surfaces, Water Dilutable MIL-STD-202 Test Methods for Electronic and Electrical Component Parts MIL-STD-704 Aircraft Electric Power Characteristics 3. INDEX OF SECTIONS AND TEST METHODS 3.1
47、Test Methods Group 100 - Assembly, Handling, and Repair Tests TABLE 1 Method No. Title 101 Concentricity and Wall Thickness 102 Insulation Bonding to Potting Compounds 103 Insulation Pull-off Force 104 Insulation Shrinkage/Expansion 105 Solderability 106 Thermal/Mechanical Resistance - Single Wire 1
48、07 Thermal/Mechanical Resistance - Bundle 108 Solder Pot Test for Insulation Shrinkage 109 Percent Overlap of Insulating Tapes -,-,- SAE AS4373 Revision C - 8 - 3.2 Test Methods Group 200 - Chemical, Biological, Radiological/Nuclear, Biological, Chemical (CBR/NBC) No test methods have been adopted f
49、or Group 200 - CBR/NBC. The United States military have done extensive testing on materials in a CBR/NBC environment. This information remains classified but is available to prime contractors. This section is reserved for industry CBR/NBC tests that may be developed or instituted in the future. 3.3 Test M