What does minimizing lead length between the electrical panel and SPD help to reduce?

Minimizing lead length between the electrical panel and the Surge Protective Device (SPD) helps to reduce inductance. Inductance is a property of electrical circuits that can cause voltage variations when current passes through them. When the lead length is shortened, the inductance is reduced, which in turn diminishes the potential for inductive kickback or high-frequency voltage spikes that can occur during a surge.

In practical terms, a shorter lead length allows the SPD to react more quickly to surges, providing better protection to the electrical system. Reducing inductance is crucial because it enhances the SPD's effectiveness, ensuring that surges are diverted to the ground efficiently and minimizing the risk of damage to connected equipment.

Other aspects such as voltage, current, and frequency are not directly addressed by lead length; they are influenced by different factors in the electrical system. Therefore, focusing on lead length primarily aids in addressing inductance, making it a key consideration in designing effective surge protection solutions.