1、 FORD LABORATORY TEST METHOD BB 101-19 Date Action Revisions 2001 03 02 Revised Editorial no technical change A. Cockman 1990 12 21 Printed copies are uncontrolled Page 1 of 4 Copyright 2001, Ford Global Technologies, Inc. OIL AND FUEL RESISTANCE OF AUTOMOTIVE ELECTRICAL CABLE Application This metho
2、d determines the resistance of automotive electrical cable to oil and fuel. Materials and Apparatus Required Oil No. 1 - per ISO 1817 Fuel C - per ISO 1817 Mandrels Steel; as required per Table 1 and 2 Methanol Conditioning and Test Conditions All test values indicated herein are based on material c
3、onditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure Method A - Oil Resistance 1. Prepare a test specimen as required by the relevant Engineering Material
4、s Specification. 2. Measure the nominal thickness of the cable insulation (T1). 3. Soak the test specimen for 24 h in oil No. 1 at a temperature of 90 +/- 2 C, with the ends protruding approximately 50 mm from the surface. 4. Remove the specimen, wipe clean and cool at 23 +/- 2 C for 30 minutes. 5.
5、Mount the specimen on a mandrel as shown in Figure 1 using the mandrel size and weight as specified in Tables 1 and 2. FORD LABORATORY TEST METHOD BB 101-19 Page 2 of 4 Copyright 2001, Ford Global Technologies, Inc. 6. The cable is to be wrapped with a minimum of 4 windings. Pitch not to exceed 2 ti
6、mes the maximum overall diameter of the wire. 7. Wind the cable around the mandrel at a speed as specified in Tables 1 and 2. 8. Remove the cable from the mandrel and measure the nominal thickness of the cable insulation (T2). Calculate the percent change in thickness as follows: % change = T2 - T1
7、x 100 T1 Where T1 = thickness of insulation before oil soaking T2 = thickness of insulation after mandrel winding 9. The insulation sheath must not break or tear. Wire identification must still be recognizable after this test. Method B - Fuel Resistance 1. Same as Method A except soak the test speci
8、men for 30 minutes in “Fuel C“ at 23 +/- 2 C with the ends protruding approximately 100 mm from the surface. Method C - Fuel & Methanol Resistance 1. Repeat Method B using fuel C containing 15 % methanol by volume. Chemicals, materials, parts, and equipment referenced in this document must be used a
9、nd handled properly. Each party is responsible for determining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BB 101-19 Page 3 of 4 Copyright 2001, Ford Global Technologies, Inc. Table 1 Standard Wall Nominal Diameter Weight Winding Cross Section of Mandrel Speed (mm sq) (mm)
10、 (N) (rpm) up to 2.5 2 05 60 3.0 3 25 60 4.0 4 50 60 5.0 5 50 60 6.0 6 100 60 10.0 15 200 30 16.0 50 300 30 Table 2 Thin Wall Nominal Diameter Weight Winding Cross Section of Arbor Speed (mm sq) (mm) (N) (rpm) 0.35 2 05 60 0.5 - 0.75 2 05 60 1.0 - 2.0 3 20 60 2.5 - 4.0 4 30 60 5.0 - 6.0 5 40 60 FORD LABORATORY TEST METHOD BB 101-19 Page 4 of 4 Copyright 2001, Ford Global Technologies, Inc. OIL RESISTANCE OF AUTOMOTIVE ELECTRICAL CABLE
