1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 06 24 Revised Para 3.0 inserted; Para 3.1, 3.5, & 4 deleted 2000 07 11 Activated R. Patel Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 5 CABLE, PRIMARY LOW TENSION, 85 C VINYL WSS-M1L120-A3 INSU
2、LATED - REDUCED WALL THICKNESS 1. SCOPE The material defined by this specification is a low tension stranded cable, vinyl-insulated with tinned conductor. The cable is similar to SAE J 1128 Type (Thin Wall - Thermoplastic Insulated) but with a reduced insulation wall thickness, and an 85 C classific
3、ation. 2. APPLICATION This specification was released originally for material used in automotive electrical harnesses. Note: The assemblers of electrical wire harnesses shall use the bulk wire suppliers as shown in the Ford Motor Company Materials Approved Source List. 3. REQUIREMENTS 3.0 STANDARD R
4、EQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CONDUCTOR 3.2.1 The individual strands of the conductor shall be soft or annealed copper conforming to ASTM B 33, except strand
5、 dimensions. These dimensions shall be controlled to yield the cross-sectional area listed for the conductor of the finished cable per Table 1. Conductor area shall be determined by measuring individual strand diameters and calculating the sum of the individual strand areas. As an alternate method,
6、conductor area may also be determined in accordance with ASTM B 263. 3.2.2 The strands shall be bunched per ASTM B 174. The maximum lay length shall be as specified in ASTM B 174 Table 2, Column A. Conductor strand count shall comply with Table 1. Missing strands are not allowed. ENGINEERING MATERIA
7、L SPECIFICATIONWSS-M1L120-A3Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 5 3.3 INSULATION 3.3.1 The color of the vinyl insulation shall be specified on the engineering drawing of the component utilizing this material. Base and stripe color codes shall corr
8、espond to SAE J 1128. Where striping is specified, the stripe shall be a minimum of 0.5 mm wide, but not more than 19% of the circumference of the wire. The stripe shall be of the same material as the vinyl insulation. 3.3.2 The insulating material shall be a polyvinyl chloride (PVC) material, homog
9、eneous in character, and similar to SAE J 1128 Type TWP. The material shall adhere closely to, but strip readily from the conductors, leaving them free of insulation and in suitable condition for applying terminals. 3.3.3 Insulation thickness shall comply with the requirements of Table 2. Insulation
10、 thickness shall be measured in accordance with ANSI/UL-1581-1985, Reference Standard for Electrical Wires, Cables, and Flexible Cords, Paragraphs 240 through 250.11. A 0.51 mm diameter pin will be used for determining minimum insulation thickness at any point. 3.4 CABLE QUALITY (TESTS) The Physical
11、 Properties, High Temperature, Dielectric, and Cold Bend Tests shall all be conducted in accordance with SAE J 1128. Note: The following paragraphs shall be tested in accordance with SAE J 1128, but with exceptions to the requirements as indicated. 3.4.1 Oil Absorption Test (SAE J 1128) Except that
12、the outside diameter of the cable shall not increase more than 15% when measured 4 h after removal from the oil. 3.4.2 Pinch Test (SAE J 1128) Values as specified in Table 3 of this document. 3.4.3 Flame Test A 610 mm specimen shall be suspended in a vertical position within a partial enclosure whic
13、h allows a flow of sufficient air for complete combustion but is free from drafts. The tip of a 50 mm gas flame with an inner cone one-third its height shall then be applied to the end of the specimen for 15 seconds. After removal of the flame, the specimen shall not continue to burn for more than 3
14、0 seconds. ENGINEERING MATERIAL SPECIFICATIONWSS-M1L120-A3Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 3 of 5 TABLE 1 AWG Wire Conductor Stranding Conductor Area # Nominal * Size Strand No. Nom Size Minimum Maximum Cond. Dia inches Cir Mil Cir Mil inches 22 7 0
15、.0100 672 719 0.030 20 7 0.0126 1072 1147 0.038 18 19 0.0092 1537 1645 0.046 18 16 0.0100 1537 1645 0.046 16 19 0.0113 2336 2500 0.057 14 19 0.0142 3702 3961 0.071 12 19 0.0179 5833 6241 0.090 10 19 0.0226 9343 9997 0.113 METRIC Wire Conductor Stranding Conductor Area # Nominal * Size Strand No. Nom
16、 Size Minimum Maximum Cond. Dia mm mm2mm2mm 0.35 7 0.25 0.32 0.34 0.76 0.50 7 0.32 0.51 0.55 0.97 0.80 19 0.23 0.76 0.81 1.17 1.00 19 0.28 1.12 1.20 1.45 2.00 19 0.36 1.85 1.98 1.80 3.00 19 0.45 2.91 3.11 2.29 5.00 19 0.57 4.65 4.98 2.87 NOTE: Metric sizes are not direct conversions from AWG wire si
17、zes. They are not considered to be equivalent substitutes. * Neither the nominal strand diameter nor normal conductor diameter are intended for checking purposes. However, the individual strands must not vary from nominal by more than plus or minus 10%. # Conductor areas are based on SAE J 1128 mini
18、mums where applicable, with a 7% tolerance. ENGINEERING MATERIAL SPECIFICATIONWSS-M1L120-A3Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 4 of 5 TABLE 2 AWG Minimum Nominal Insulation Insulation Finished Cable Nominal Wire Size Thickness* Thickness# Diameter AWG
19、Inches Inches Inches Minimum Maximum Nominal 22 0.012 0.016 0.059 0.065 0.062 20 0.012 0.016 0.067 0.073 0.070 18 0.012 0.016 0.075 0.081 0.078 16 0.012 0.016 0.086 0.092 0.089 14 0.012 0.016 0.100 0.106 0.103 12 0.015 0.018 0.122 0.130 0.126 10 0.017 0.021 0.151 0.159 0.155 METRIC Minimum Nominal I
20、nsulation Insulation Finished Cable Nominal Wire Size Thickness* Thickness# Diameter Metric mm mm mm Minimum Maximum Nominal 0.35 0.32 0.40 1.48 1.64 1.56 0.5 0.32 0.40 1.69 1.85 1.77 0.8 0.32 0.40 1.89 2.05 1.97 1.0 0.32 0.40 2.17 2.33 2.25 2.0 0.32 0.40 2.52 2.68 2.60 3.0 0.37 0.46 3.10 3.31 3.20
21、5.0 0.43 0.53 3.84 4.04 3.94 NOTES: *Refer to para 3.3.3. No one reading may be less than shown. #Average insulation thickness shall not be less than 90% of the nominal insulation thickness. ENGINEERING MATERIAL SPECIFICATIONWSS-M1L120-A3Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 5 of 5 TABLE 3 - PINCH TEST Wire Size Min. Pinch Resistance Gauge mm sq LB kf 22 0.35 2.6 1.2 20 0.50 3.3 1.5 18 0.80 3.3 1.5 16 1.00 4.4 2.0 14 2.00 4.4 2.0 12 3.00 5.5 2.5 10 5.00 5.5 2.5
