Originally Posted By: westom
One defined the effective solution. A 'whole house' protector connected low impedance (ie less than 10 feet) to single point earth ground is demonstrated by science and proven by experience over 100 years ago.
....Manufacturers known by any guy for their integrity provide effective and properly earthed solutions including Intermatic, Square D, Ditek, Siemens, Polyphaser (an industry benchmark), Syscom, Leviton, ABB, Delta, Erico, General Electric, and Cutler-Hammer (Eaton). A protector is only as effective as its earth ground.
A few decades ago, I returned home from an in-depth seminar on grounding, led by a guy who actually knew his subject. First thing I did was to buy a ground rod and then spend a couple of hours swinging a sledgehammer to sink it, right below the electrical service entrance, meter, and external breaker box. Then bond it to the panel. The builders electrical contractor used a copper hose bib, rather than sink a rod.
The second thing I did was to install a metal-encased whole house arrestor on the main panel, with LED indicators for each leg.
Never lost anything electrical nor electronic due to voltage spikes. When I was doing residential work, I'd always recommend to my clients they do the same.
After all, external doors and even windows all have locks these days because they are on the perimeter. That's where electrical wiring protection goes as well: Outside. At the service entrance.