How to handle the shielding of power cables for power line carrier PLCs?

When handling power line carrier PLC power cable shielding, it is crucial to select appropriate shielding type and termination method. Shielding type selection: Use braided shielding (coverage of over 85%) for high-frequency noise and foil shielding for low-frequency noise. Termination should use shielding clips or connector metal shells, crimped 360 degrees to ensure shielding continuity. Shielding grounding: Single-end grounding avoids ground loops, while double-end grounding reduces high-frequency impedance. Use filter connectors or sealing gaskets at cable entry points. During testing, radiated emission tests were performed, comparing the results before and after shielding treatment; radiation decreased by 20dB. Proper handling can suppress cable radiation and conducted noise, improving system EMC performance.