Protective grounding and working grounding of DCS cabinets
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Can the protective grounding and working grounding of a DCS cabinet be connected directly to each other on the cabinet? Is it necessary to use a separate grounding bar for the DCS cabinet? How deep should the grounding bar be buried, and how should it be connected to the wiring? I would appreciate some guidance from those with experience.
The protective ground and the working ground cannot be connected directly. Cables are usually provided inside the cabinet, with clear markings indicating which one is the protective ground and which one is the working ground.
The protective ground and the working ground cannot be connected directly; the copper bars inside the cabinet are clearly marked to indicate which one is the protective ground and which one is the working ground. The grounding specifications for the instruments upstairs have been clearly explained.