1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 04 2014 06 20 N-STATUS A.Wedepohl, NA 2003 06 27 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.24, 4 deleted 1963 08 29 Released CF6-WP412036 Controlled document at www.MATS Copyright 2014, Ford Global Technologies, Inc. Page 1 of 3 C
2、OPPER WIRE, SOFT OR ANNEALED ROUND, SINGLE ESF-M2L25-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 single film of solderable baked synthetic polyurethane varnish having a
3、nylon overcoat. 2. APPLICATION This specification was released originally for material used for field windings on fractional horsepower motors. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements
4、For Production Materials (WSS-M99P1111-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: #14 gage ESF-M2L25-A. 3.5 COLOR The color of single polyurethane and nylon insulation shall b
5、e specified on the engineering 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 wi
6、th a polyurethane and nylon film so as to be equally as well covered as other portions of the wire. ENGINEERING MATERIAL SPECIFICATION ESF-M2L25-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 fil
7、m of polyurethane and 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 MW 1000 Part 2, Table S-MW 28-C. The addition to the diameter of the
8、bare wire due to the polyurethane and nylon coating shall be determined utilizing the test method shown in NEMA MW 1000 Part 2, Table S-MW 28-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
9、 same as for the next larger 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
10、 (NEMA MW 1000, IEC 851, 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
11、meet the requirements of 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, Table I) Average 20 strokes Single 10 strokes 3.16.2 Unidirectional Scrape Resistance (N
12、EMA MW 1000, IEC 851) The lowest “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 I. ENGINEERING MATERIAL SPECIFICAT
13、ION ESF-M2L25-A Copyright 2014, Ford 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 I. 3.19 HEAT SHOCK A sample of polyurethane and nylon coated wire
14、 prepared in accordance with para 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
15、1000, IEC 851) 3.21 SOLDERABILITY (NEMA MW 1000, IEC 851) Awg Max Immersion Time Temperature of Size In Solder, s Solder, C 10 - 19 8 425 20 - 23 6 425 24 - 29 5 360 30 - 36 5 360 37 - 46 3 360 3.22 CONFORMITY WITH THIS SPECIFICATION In case of failure under any of the foregoing tests, two additiona
16、l tests shall be made, and the wire shall be regarded as meeting the requirements of this specification if the results of either of the two additional tests are unsatisfactory. 3.23 FRICTION, max 20 g (NEMA MW 1000, IEC 851) 4. GENERAL INFORMATION The information given below is provided for clarific
17、ation and assistance in meeting the requirements ofthis specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS 2014 N-Status. Added Summary of Revisions and General Info. 2003 06 27 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.24, 4 deleted 1997 07 31 Revised Revised para 3.5, 3.8; Updated N. Vallabhanath 1987 12 01 CF4R-RD107002-87 3.20 Revised FLTM
