MGN is grounded every what distance?

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Multiple Choice

MGN is grounded every what distance?

In telecom grounding, the Main Grounding Network is bonded to earth at regular intervals so every part of the network stays at or near earth potential and fault currents have a low-impedance path back to ground. Grounding the MGN every 0.40 km (about 400 meters) keeps the network’s impedance consistently low along its run, minimizing potential differences during faults and helping protect equipment and personnel. This spacing strikes a practical balance between installation effort and electrical performance; closer spacing would be unnecessarily costly, while much longer gaps could allow higher impedance and larger voltage differences. Therefore, 0.40 km is the recommended interval.

In telecom grounding, the Main Grounding Network is bonded to earth at regular intervals so every part of the network stays at or near earth potential and fault currents have a low-impedance path back to ground. Grounding the MGN every 0.40 km (about 400 meters) keeps the network’s impedance consistently low along its run, minimizing potential differences during faults and helping protect equipment and personnel. This spacing strikes a practical balance between installation effort and electrical performance; closer spacing would be unnecessarily costly, while much longer gaps could allow higher impedance and larger voltage differences. Therefore, 0.40 km is the recommended interval.

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