The tapes used in automotive wiring harnesses are very important for their temperature resistance, flame retardancy, noise reduction, compatibility of wire insulation, abrasion resistance, low fogging, oil resistance, and corrosion resistance.
Temperature resistance: The low temperature resistance requirement of the whole vehicle wiring harness is -40°C. The main difference is that the high temperature resistance requirements are different. The ambient temperature at different positions on a car body is different, resulting in different high temperature resistance requirements for the wire harness tapes at different positions. , In the engine room, the high temperature resistance of the tape is required to be 105~150°C, and 85~105°C in the cab. The following is the specific analysis.
For the wiring harness in the engine compartment, the ambient temperature in the engine compartment is the highest. In some specific locations, such as above the engine block, the maximum storage temperature can reach 135°C, and the maximum storage temperature under the hood can also reach 95°C, so The place closest to the engine requires high temperature resistance of the tape. The tape used on the engine wiring harness generally has two functions: the wire harness has no protective sleeve, and the tape plays the main protective role. At this time, the high temperature resistance requirement of the tape must reach 130°C; To the role of fixing the protective sleeve, at this time, the high temperature resistance requirement of the tape must be above 105°C.