Wiring of shielded cables

At the work site, it finally merges into the main ground connection.

Just saw this and wanted to share it: 1.2 Grounding methods for DCS systems – Common grounding methods for DCS systems. 1.2.1 Using the electrical grounding grid as the DCS grounding grid, that is, sharing the same ground connection as the electrical grounding grid； 1.2.2 A dedicated and independent grounding grid shall be provided for the DCS system ； 1.2.3 A dedicated DCS grounding grid shall be provided, which is connected to the electrical grounding grid through grounding wires ； Since the third grounding method shares many similarities with the second, dedicated grounding grids were previously widely used in computer or DCS systems. However, the disadvantages of this grounding method are: it requires a large amount of space, involves high costs, consumes a lot of cable and steel for the grounding grid, must be placed at a considerable distance from the factory building (as it is difficult to find a suitable location within the building), and makes it inconvenient to manage, maintain, measure, and locate the grounding electrodes and wires; moreover, its effectiveness is not very good. Actual operation has shown that establishing a dedicated DCS grounding grid is both difficult and unsafe. For example, a power plant once experienced the unit tripping dozens of times due to grounding issues. According to investigations, many power plants later switched to using the electrical grounding grid for grounding, achieving good results.

First connect it to the ground, and then link it underground; the grounding resistance should be ≯4Ω!