1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 04 30 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.7, 3.8, 4 deleted 1994 04 13 NE01-E10127076-125 Revised 3.4, 3.5, 3.6 E. Duda 1992 02 24 NE01E1012707641 Released F. Swanson Printed copies are unc
2、ontrolled Page 1 of 4 Copyright 2003, Ford Global Technologies, Inc. IGNITION CABLE, HIGH TENSION, RESISTANCE CORE (FIBER GLASS) WSE-M1L115-B ETHYLENE COPOLYMER JACKET AND EPDM INSULATION (8 mm) 1. SCOPE The material defined by this specification is a high grade heat, moisture and corona resistant i
3、gnition cable, with sufficient conductor resistance to suppress electrical components in the ignition system which could cause radio interference. 2. APPLICATION This specification was released originally for material used for maximum performance in tractor and automotive type engines. 3. REQUIREMEN
4、TS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 CABLE CONSTRUCTION 3.4.1 Conductor The conductor shall consist of 60 ends of ECG 150 strand glass conductive r
5、oving uniformly treated with carbon. An optional binder yarn, which consists of ECG 150 1/0 Z 39 tpm, may be used as a manufacturing aid. This is covered with ECG 75 1/0, 1 end natural glass braid using 8 heads on a 16 head braider, with 28 +/- picks/100 mm and a basket (one over one) weave. Over th
6、e braid there shall be extruded high temperature thermosetting conductive silicone. The core shall then be vulcanized (thermally cured). The finished conductor shall be smooth and have a diameter of 2.44 +/- 0.13 mm, with a minimum conductive silicone wall thickness of 0.25 mm. 3.4.2 Conductor Insul
7、ation The conductor shall be coated with a covering of EPDM rubber, placed concentrically within 0.25 mm around the conductor. The diameter of the insulated conductor must not exceed 6.48 mm. The minimum diameter is limited only by the performance tests hereinafter required. ENGINEERING MATERIAL SPE
8、CIFICATION WSE-M1L115-B Page 2 of 4 Copyright 2003, Ford Global Technologies, Inc. 3.4.3 Reinforcing Braid The insulated conductor shall have a glass braid covering. This skeleton braid shall consist of fiber glass yarns per commercial designation ECG 75 1/0, 1 end natural glass, 16 heads, 55 +/- 4
9、picks /100 mm, two over and two under. 3.4.4 Outer Jacket Over the insulated conductor there shall be applied a protective coating of ethylene copolymer rubber; flame, heat, corona, water and oil resistant. The surface of the finished cable shall be smooth, even and free from any tackiness due to co
10、mpounds used in assembly or where specified. A minimum wall thickness of 0.51 mm must be maintained. Jacket color shall be as specified on the Engineering Drawing. 3.5 FINISHED CABLE 3.5.1 Diameter 7.75 - 8.26 mm 3.5.2 Resistance 16,400 +/ - 6,560 ohms/m (ASTM B 193, AT 20 C) 3.5.3 Capacitance, max
11、197 pF/m (FLTM BB 101-11, Test II) 3.5.4 Tensile Strength No rupture or separation Test Method: FLTM BB 101-11, except use 56.7 kg weight. 3.5.5 Corona Resistance No Failure Test Method: FLTM BB 101-11, Test IV, except Step 1 - 1372 mm length; Step 2 - tape 406 mm from end; Step 6 - 43.2 mm sleeve;
12、and Steps 8 and 9 - 20 kV AC source. At end of 5 h increase voltage to a minimum of 30 kV AC without cable failure. Test should be repeated if failure occurs at point where cable is secured to mandrel or outside the specified five turns. 3.5.6 High Potential No burning over the end or rupture of ins
13、ulation Test Method: FLTM BB 101-11, Test V, except Step 1 762 mm length ; Step 7 229 mm protrusion ; and Step 10 25 kV AC. At end of 5 minutes increase voltage to a min of 32 kV AC without cable failure. 3.5.7 Heat Resistance No Failure Test Method: FLTM BB 101-11, Test VI, except Step 1 - 1067 mm
14、length; Step 2 - 163 +/- 2 C; Step 3 - 25 mm mandrel; Step 8 - 229 mm protrusion; Step 9 - 20 kV AC; and Steps 10 and 11 25 kV AC. ENGINEERING MATERIAL SPECIFICATION WSE-M1L115-B Page 3 of 4 Copyright 2003, Ford Global Technologies, Inc. 3.5.8 Hot Oil Resistance No Failure Test Method: FLTM BB 101-1
15、1, Test VII, except Step 1 - 1372 mm length; Step 2 - tape 406 mm from end; Step 9 - 43.2 mm sleeve; Step 10 - 20 kV AC; and Step 12 - use 25 mm mandrel. 3.5.9 Accelerated Life Cycle No failure Test Method : FLTM BB 101-11, Test VIII, except: null Step 1 - 1372 mm length null Step 2 - 406 mm from en
16、d null Step 10 - 43.2 mm sleeve null Step 11 - First day (1) 163 +/- 2 C (4) 20 kV AC source Second day (1) 163 +/- 2 C (2) Cool for 15 minutes before immersion (3) 20 kV AC source Third day (1) 163 +/- 2 C for 4 h (3) 2 h immersion (4) 17 h drain (5) 20 kV AC source 3.5.10 Cold Resistance No cracki
17、ng (FLTM BB 101-11, Test IX) 3.6 INSULATION AND JACKET PROPERTIES (ISO 37/ASTM D 412, ISO 868/ASTM D 2240, 1EC 243/ ASTM D 149, 1.91 mm thick slabs, ethylene copolymer cured 15 minutes at 177 C; EPDM cured 15 minutes at 163 C) ENGINEERING MATERIAL SPECIFICATION WSE-M1L115-B Page 4 of 4 Copyright 200
18、3, Ford Global Technologies, Inc. 3.6.1 Conductor Insulation (EPDM) Aged 70 hAs Received at 177 +/- 2 C Tensile Strength, MPa, min 6.21 5.86 Elongation, % , min 250 95 Hardness, Durometer “A“ 70-85 90 max Hardness Change, max - + 7 * Dielectric Strength, kV/mm, 21.7 21.7 min 3.6.2 Outer Jacket (Ethylene Copolymer) Aged 70 h As received at 163 +/- 2 C Tensile Strength, MPa, min 6.54 6.20 Elongation, %, min 450 200 Hardness, Durometer “ A“ 65-80 90 max Hardness Change, max - + 15 * Dielectric Strength, kV/mm, 17.7 17.7 min * The change shall not exceed the hardness requirement.
