1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 10 14 Revised Updated & Renumbered 1993 08 31 NGA1E10269419007 Reactivated & Updated A. Vallabhanath 1975 10 15 AF1-6000-40 Released (Was XF-M2LX31) Printed copies are uncontrolled Page 1 of 3 Copyright
2、 2002, Ford Global Technologies, Inc. COPPER WIRE, SOFT OR ANNEALED ROUND, SINGLE ESF-M2L53-A ESTER-IMIDE INSULATED (SOLDERABLE) 1. SCOPE The material defined by this specification is a soft or annealed round copper wire insulated with a single film of solderable ester-imide resin of Class 155 therm
3、al rating. 2. APPLICATION This specification was released originally for windings on alternator rotor coils. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1
4、111-A). 3.2 WIRE SIZE SPECIFICATION The wire size shall be specified on the engineering drawing and/or release according to the American Wire Gage number desired. 3.3 COLOR The color of the solderable ester-imide film shall be specified on the engineering drawing. 3.4 BARE WIRE The copper wire used
5、as a base for the coated wire shall conform to ESF-M2L1-A, except as noted herein. 3.5 JOINTS Joints made in the insulated wire shall conform to ESF-M2L1-A and shall be covered with an ester-imide film so as to be equally as well covered as other portions of the wire. ENGINEERING MATERIAL SPECIFICAT
6、ION ESF-M2L53-A Page 2 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.6 INSULATION COATING AND THICKNESS The wire shall be coated with a continuous insulating film of ester-imide, of such quality as to meet the requirements of this specification. The minimum increase in the diameter of the wi
7、re due to the insulating film and the maximum overall diameter shall be as shown in Table I of specification ESF-M2L2-A. The addition to the diameter of the bare wire due to the coating shall be determined utilizing the test method shown in specification ESF-M2L2-A, para 3.4. 3.7 INTERMEDIATE SIZES
8、For wire sizes between the American Wire Gage sizes, the increase in diameter due to the coating shall be the same as for the next larger AWG size, and the test values shall be the same as for the next smaller AWG size. 3.8 INSULATION ADHESION No cracks in the coating (NEMA MW1000, para 3.1.1.1) 3.9
9、 INSULATION FLEXIBILITY No cracks in the coating (NEMA MW 1000, para 3.2.1.1/IEC 851, para 3.5) 3.10 ELONGATION (NEMA MW1000, para 3.3.1.1/IEC 851, para 3.3) The insulated wire shall meet the requirements of Table I. 3.11 INSULATION SOLUBILITY Insulation shall not soften (NEMA MW1000, para 3.3.1.1/I
10、EC 851, para 4.3) 3.12 SOFTNESS OF COPPER (NEMA MW1000, para 3.6.1.1/IEC 851, para 3.4) The insulated wire shall meet the requirements of Table III. 3.13 UNIDIRECTIONAL SCRAPE RESISTANCE (NEMA MW1000, para 3.59/IEC 851, para 3.6) The lowest “gram to fail“ load, representing failure of the insulating
11、 film, in any one of the three tests shall not be less than the minimum value and the average of the three tests shall not be less than the average value specified in Table I. ENGINEERING MATERIAL SPECIFICATION ESF-M2L53-A Page 3 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.14 DIELECTRIC TE
12、ST, min 79 kV/mm (NEMA MW1000, para 3.2.1.1/IEC 851, para 5.4) 3.15 CONTINUITY TEST (NEMA MW1000, para 3.8/IEC 851, para 5.5.2) The insulated wire shall meet the requirements of Table I. 3.16 HEAT SHOCK A sample of coated wire, prepared in accordance with para 3.8, shall be placed in an oven at 250
13、/- 3 C for 1 h. No cracks in the coating shall be visible on size 4 to 29 AWG when examined with normal vision, or on sizes 30 to 40 AWG when examined with 6X to 10X magnification. 3.17 THERMOPLASTIC FLOW, min 225 C (NEMA MW1000, para 3.5.1.1/ IEC 851, para 6.4) 3.18 SOLDERABILITY (NEMA MW1000, par
14、a 3.12/IEC 851, para 4.5) Immersion Time in Temperature of AWG Size Solder, max, s Solder, C 15 19 8 482 20 23 8 482 24 30 6 482 3.19 CONFORMITY WITH THIS SPECIFICATION In case of failure under any of the foregoing tests, two additional tests shall be made, and the wire shall be regarded as meeting the requirements of this specification if the results of the additional tests are satisfactory. The wire shall be regarded as not meeting the requirements of this specification if the results of either of the two additional tests are unsatisfactory.
