1. Determine the installation position of the fuse box and relay (the maintenance is a prerequisite).
2, wire distribution design (wired according to the overall layout requirements and reasonable segmentation).
3, wire size design
Trunk size: Ning is short and not long to reduce wire resistance (limited by body);
Branch size: Ning is not short, considering assemblyability;
Moving parts: The size of the tap should be enough to keep enough jitter, usually 3-5mm. Such as: engine
Power on the device.
4, harness protection design
After the end of the pre-design phase of the online bundle, it will enter the post-determination phase process. Mainly to draw the wire harness diagram and trial production. The wire harness diagram should be drawn before the wire harness is arranged. The wire harness diagram is different from the circuit schematic diagram. A circuit schematic is an image that expresses the relationship between various electrical parts. It does not reflect how the electrical components are connected to each other, and is not affected by the size and shape of the individual electrical components and the distance between them. The harness diagram must take into account the size and shape of each electrical element, and the distance between them, as well as how the electrical components are connected to each other.