Why Is The Cross-sectional Area Important For The Load-bearing Capacity Of A Copper-clad Grounding Rod?

In a grounding system, the cross-sectional area of the copper bonded steel series of electrodes plays a decisive role in its current-carrying capacity. The larger cross-sectional area of the copper bonded steel ground rod allows the internal conductors to carry a larger current, which means that the ground electrode can withstand a stronger impact when encountering lightning strikes or short-circuit currents.

Considering instantaneous high-current scenarios such as short circuits and lightning strikes, as well as potentially continuous current loads, if the cross-sectional area of the copper bonded steel rod conductor is insufficient, heat cannot be dissipated in time, the conductor resistance increases, the temperature rises significantly, and this may lead to connection failure or material performance degradation. A larger cross-sectional area, on the other hand, maintains a lower resistance value, ensuring the stability of the conductor structure and connections.