In masonry chimneys, where can strike termination devices and lightning conductors be installed?

In masonry chimneys, strike termination devices and lightning conductors can be installed in both inside and outside locations due to the need for effective lightning protection and the architectural design of the chimney.

The rationale for allowing installations in both areas stems from the fact that lightning protection systems must efficiently intercept and carry lightning strikes safely to the ground without risk of fire or structural damage. Having the option to place protection devices on both the exterior and interior of the chimney allows for flexibility in design, ensuring the protection system can be integrated appropriately with the overall building architecture and the specific characteristics of the chimney.

Typically, the installation outside can be designed to minimize visual impact while still providing the necessary protection. Meanwhile, placing components inside can further enhance the system's effectiveness, as it can shield vulnerable components from direct strikes while allowing for a cleaner external appearance. Thus, the combination of installations both inside and outside maximizes the effectiveness of the lightning protection system while adhering to best practices in safety and design.