1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 04 2014 06 20 N-Status A.Wedepohl NA 2003 08 19 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.24, 4 deleted 1963 09 16 F6-1117 Released Controlled document at www.MATS Copyright 2014, Ford Global Technologies, Inc. Page 1 of 3 COPPER
2、WIRE, SOFT OR ANNEALED ROUND, HEAVY ESF-M2L24-A POLYURETHANE AND NYLON INSULATED, SOLDERABLE NOT FOR NEW DESIGN 1. SCOPE The material defined by this specification is a soft or annealed round copper wire insulated with a heavy film of solderable baked synthetic polyurethane and nylon varnish. 2. APP
3、LICATION This specification was released originally for material used for windings on heater motor armatures. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P
4、1111-A). 3.4 WIRE SIZE SPECIFICATION The wire size shall be specified on the engineering drawing and/or release according to the American Wire Gage number desired. Example: NEMA MW1000 Part 2, Table H-MW28-C. 3.5 COLOR The color of heavy polyurethane and nylon insulation shall be specified on the en
5、gineering drawing. 3.6 BARE WIRE The copper wire used as a base for the polyurethane and nylon coated wire shall conform to ESF-M2L1-A, except as noted herein. 3.7 JOINTS Joints made in the polyurethane and nylon insulated wire shall conform to ESF-M2L1-A and shall be covered with a polyurethane and
6、 nylon film so as to be equally as well covered as other portions of the wire. ENGINEERING MATERIAL SPECIFICATION ESF-M2L24-A Copyright 2014, Ford Global Technologies, Inc. Page 2 of 3 3.8 INSULATION COATING AND THICKNESS The wire shall be coated with a continuous insulating film of polyurethane and
7、 nylon, of such quality as to meet the requirements of this specification. The minimum increase in the diameter of the wire due to the insulating film and the maximum overall diameter shall be as shown in NEMA MW1000 Part 2, Table H-MW28-C. The addition to the diameter of the bare wire due to the po
8、lyurethane and nylon coating shall be determined utilizing the test method shown in NEMA MW1000 Part 2, Table H-MW28-C. 3.9 INTERMEDIATE SIZES For wire sizes between the American Wire Gage sizes, the increase in diameter due to the polyurethane and nylon coating shall be the same as for the next lar
9、ger Awg size, and the test values shall be the same as for the next smaller Awg size. 3.10 INSULATION ADHESION No cracks in the (NEMA MW 1000, IEC 851) coating 3.11 INSULATION FLEXIBILITY No cracks in the (NEMA MW 1000, IEC 851) coating 3.12 INSULATION AGING No cracks in the (NEMA MW 1000, IEC 851,
10、125 +/- 3 C) coating 3.13 ELONGATION (NEMA MW 1000, IEC 851) The insulated wire shall meet the requirements of NEMA Table. 3.14 INSULATION SOLUBILITY Insulation shall (NEMA MW 1000, IEC 851) not soften 3.15 SOFTNESS OF COPPER (NEMA MW 1000, IEC 851) The insulated wire shall meet the requirements of
11、NEMA Table. 3.16 SCRAPE RESISTANCE Scrape resistance shall be measured in accordance with one of the following two methods: 3.16.1 Repeated Scrape Resistance, min (NEMA MW 1000, IEC 851) Average 20 strokes Single 10 strokes 3.16.2 Unidirectional Scrape Resistance (NEMA MW 1000, IEC 851) The lowest “
12、grams to fail“ load, representing failure of the insulating 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 II. ENGINEERING MATERIAL SPECIFICATION ESF-M2L24-A Copyright 2014, F
13、ord Global Technologies, Inc. Page 3 of 3 3.17 DIELECTRIC TEST, min 79 kV/mm (NEMA MW 1000, IEC 851) 3.18 CONTINUITY TEST (NEMA MW 1000, IEC 851) The insulated wire shall meet the requirements of Table II. 3.19 HEAT SHOCK A sample of polyurethane and nylon coated wire, prepared in accordance with pa
14、ra 3.8, shall be placed in an oven at 125 +/- 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. 3.20 THERMOPLASTIC FLOW, min 170 C (NEMA MW 1000, IEC 851) 3.21 SOLDERABILIT
15、Y (NEMA MW 1000, IEC 851) Awg Maximum Immersion Temperature of Size Time in Solder, s Solder, C 10 - 19 10 427 20 - 23 8 427 24 - 29 6 360 30 - 36 5 360 37 - 46 4 360 3.22 CONFORMITY WITH THIS SPECIFICATION In case of failure under any of the foregoing tests, two additional tests shall be made, and
16、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. 3.23 FRICTIO
17、N, max 20 g (NEMA MW 1000, IEC 851) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS 2014 N-Status. Added Summary of Revisions and General Info. 2003 08 19 Revised. Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.24, 4 deleted 1997 07 31 Revised. Rev.para 3.4,3.5,3.8,3.10-3.23;Upd. N. Vallabhanath 1987 12 01 CF4R-RD107002-87 3.20 Revised FLTM
