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I can give you my opinion and experience. When I mention lightning safety, the true meaning is probably lightning effects suppression safety equipment and circuits. To totally eliminate the the effects of a direct or peripheral strike for most consumer grade equipment is NOT possible. Safety grounds in radio deal primarily with lightning suppression, anti-shock and ground-loop issues.
Lightning safety grounds normally consist of several 8 foot long copper plated ground rods spaced 12 feet apart and connected by 0 or 00 ga. cable. The cables are attached to the roads with an exothermic device called Cad-Weld. Some broadcast stations use 4 inch wide heavy gauge copper strap instead of heavy copper cabling.
There has been extensive debate and research as to whether lightning initiates on the ground or in the cloud. Most lightning suppression equipment and hardware is for the purpose of directing and lessening the effects of the energy in the strike.
The only way to totally protect electronic equipment in a lightning storm is to disconnect the equipment from the AC service mains and antennas. Using antenna designs that have a direct path to ground helps to protect feed lines and associated tuning circuits. But, nothing protects like a disconnect.
If you were to take a look at a piece of Romex house wiring, notice the thickness of the insulation and the spacing of the conductors. A static discharge or a lightning strike would jump across the insulation or spacing with little effort. And the third conductor on the power pole is neutral which is hooked to ground at some point. So, if lightning hits the power lines, the energy will be conducted directly into the house or building electrical system. Metal Oxide Variistors (MOV) can help to suppress some of the energy and help protect equipment. Many well built power strips have these devices built in them.
When dealing with NEC code and electrical wiring practices, you will need to ask a licensed and certified electrician.