What is the minimum lead anchor size recommended for bases and cable holders?

The minimum lead anchor size recommended for bases and cable holders is 1/4 inch. This specification is established to ensure that the components of a lightning protection system are securely fastened in a way that can withstand the physical forces and stresses imposed during a lightning strike. A 1/4 inch lead anchor is considered suitable for providing the necessary strength and stability for supporting components like down conductors and grounding electrodes, which are crucial in safely directing lightning energy to the ground.

While larger anchor sizes may provide even more strength, the 1/4 inch specification strikes a balance between adequate holding power and practicality for installation. It is important to adhere to these sizes to ensure the integrity of the installation while not unnecessarily complicating the process with overly large hardware, which can be more difficult to install and manage. This size recommendation helps technicians maintain efficiency and safety in lightning protection system installations.