I'm installing a new antenna mast to hold one or more antennas. The new mast will be strapped on to a chimney near the center of my house. Coax will run down the mast, across the roof, down the side, and enter the house within inches of ground level.
A collection of several ground rods spaced several feet apart (and tied together) is already installed near where the coax enters the house, with one rod being less than a foot from the entry point. The coax will run through a lightning arrester (specifically https://www.dxengineering.com/parts/DMN-SP3000W) at the ground rods.
Since the mast itself will have no ground connection (except what a brick chimney provides), the coax should be the most likely path to ground. Is the lightning arrester sufficient for lightning/static discharge, or should I run a separate grounding wire from the mast down to the ground?
If it's relevant, station ground will come to a single point in the shack and then be a thick copper cable wire back out to the same ground rod system.