Wire harness is the total equipment which provides service for a certain load source group, such as relay line, switching device, control system, etc. The basic research content of traffic theory is to study the relationship among traffic, call loss and harness capacity. Therefore, harness is an important basic concept in traffic theory.
1. Easy to install and maintain, ensure that electrical equipment can work in the worst conditions, and integrate the different specifications and colors of electric wires used in the whole vehicle through reasonable arrangements, and bundle them with insulating materials, so that they are complete and reliable.
2. Normal Selection of Wire Section Area and Color Standard
1) Correct Selection of Wire Section Area
Electrical equipment on the vehicle chooses the cross-sectional area of the wire used according to the magnitude of the load current. Electrical equipment that works for a long time can use 60% of the actual carrying capacity of the wire; electrical equipment that works for a short time can use 60% to 100% of the actual carrying capacity of the wire.
2) Selection of color mark for wire
In order to facilitate identification and maintenance, different colors are used in the wiring harness.
In order to mark conveniently in the circuit diagram, the color of the conductor is expressed by letters, and the color represented by the conductor is annotated in each circuit diagram.