Select Surge Protectors Based On Other Factors.

The selection of other parameters for surge protective device depends on the level of the lightning protection zone where each protected object is located, and its operating voltage is based on the rated voltage of all components installed in the lead circuit. surge protector Its rated current also needs attention.

Other factors affecting lightning current distribution in electric arc lines: surge protection device A decrease in grounding resistance will increase the distributed current in the electric arc lines. Increasing the length of the power supply cable will reduce the distributed current in the power lines and achieve a balanced current distribution among the major conductors. Excessively short cable length and excessively low neutral impedance will cause current imbalance, resulting in differential-mode interference. Connecting multiple users in parallel with the power supply cable will reduce the effective impedance, leading to an increase in distributed current. In a network-like power supply configuration, temporary lightning current mainly flows into the power lines, which is why most lightning losses occur at the power lines.