Regarding wiring techniques, the principle of "horizontal and vertical alignment, clear layering" must be strictly followed. Wire harnesses should be secured with nylon cable ties or binding wires, and the bundling spacing should not be too large. The following is a detailed introduction to it: - **Familiarize with Drawings**: Carefully study relevant drawing materials such as electrical schematic. In modern industrial automation, control cabinet wiring has evolved beyond being just another technical step in the assembly process. Today, it is one of the key factors determining the reliability, safety, and long-term serviceability of the entire system. Safeguarding PLCs from dust, humidity, and physical damage is crucial to ensure their proper. This standard applies to disk, construction and acceptance of its secondary circuit wiring cabinet installation works. 1 In order to ensure the construction quality of panel, cabinet device and secondary circuit wiring installation project, promote the improvement of engineering. In a power system, if equipment like generators, transformers, and circuit breakers that directly transmit electrical energy are considered the "limbs," then secondary circuits are the "nervous system" that directs their actions.