How to ensure continuity when overlapping the housing of a power line carrier PLC?

Ensuring the continuity of the PLC housing overlap requires ensuring the conductivity of the contact surfaces and the tightening pressure. Remove the insulating coating from the contact surfaces to expose the metal substrate, or apply conductive paint. Use conductive pads (such as beryllium copper springs) to fill uneven areas. Tighten screws with a spacing of less than 5 cm and a consistent torque (e.g., 0.5 Nm) to ensure uniform pressure. The resistance at the overlap should be less than 10 mΩ. For moving parts (such as doors), use hinges or braided straps for bridging. During testing, use a milliohm meter to measure the overlap resistance; it should meet the requirements. Ensuring continuity reduces grounding impedance and improves shielding effectiveness and interference immunity.