Intermediate-level potential equalization is achieved by interconnecting which systems?

Intermediate-level potential equalization is achieved by interconnecting the lightning protection system down conductors and other grounded media because this approach provides a comprehensive strategy for managing and mitigating the risks associated with lightning strikes.

In a lightning protection system, down conductors play a crucial role in directing the electrical energy from a lightning strike safely into the ground. When these conductors are interconnected with other grounded systems, such as piping and structural components, they help ensure that all parts of the structure share a common ground potential. This minimizes the risk of differential voltages arising during a lightning event, which can lead to equipment damage or electrical hazards.

Additionally, integrating various grounded systems enhances the overall safety and effectiveness of the lightning protection architecture. This interconnectedness supports effective potential equalization throughout the building, making it a critical element in electrical safety and protection design in relation to lightning and electrical surges. The other options are limited in scope and do not fully address the comprehensive approach required for potential equalization in the context of lightning protection.