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How do the intelligent low-voltage monitoring unit and the power distribution terminal communicate and coordinate (EMC)?

Time：2026-01-05 Views：520次

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For EMC coordination with power distribution terminals, unified grounding and interface standards are required.

Grounding coordination: Equipotential bonding is used, with both grounding points connected via a grounding grid.

Interface standards: IEC 60870-5-104 or IEC 61850 protocols are uniformly adopted. Electrical interfaces use RS485 with consistent protection levels.

Signal level matching: Standard levels are used.

Cable specifications: Shielded twisted-pair cables of the same specification are used.

Through coordinated design, the entire communication system passed the IEC 61000-4-5 4kV surge test.

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