When designing wiring systems, the preferred approach is to model the wiring as a wiring harness.
This method has many advantages over modeling wires and cables individually. It allows SolidWorks to make many calculations for you, and greatly reduces errors.
Electrical Routing with Clips
The easiest way to model a harness is to use clips. You can place clips as required in the assembly. The harness is then routed through the clips.
Using a From-To List
A From-To List automates much of the wiring process. It contains each of the wires and cables in the design, and identifies the wire type to use and the required connectivity.
Using a From-To List eliminates the need to enter wiring data manually, makes the design process easier, and improves the accuracy of electrical routes.