I recently moved to a storm prone area, so I plan to disconnect my shack connections when not operating. An electrician is helping me install a ground rod (bonded to my utility ground) soon, but I want to understand how thoroughly I need to disconnect to be safe.
Before moving here, I only ever operated QRP so having a ground rod at my home QTH is new to me. I'm not sure how much safety it gives me. I already have the ARRL grounding book, but it doesn't answer all my questions.
- Is my house safe if I disconnect only the short internal feedline, but leave the long external one connected? The feedlines will be joined by an alphadelta lightning arrester that's mounted to a copper buss bar affixed to the exterior of my house. If it matters, the longer feed line goes to an EFHW antenna I built, which is strung up in the back yard.
- Do I also need to disconnect the ground braid from my exterior buss bar, that comes into my house? Is there any risk of a lightning strike following the ground braid?
I'm concerned because the external ground bar will be affixed to my house's siding. I want to ensure a nearby lightning strike couldn't cause some kind of sparking that would cause problems. I imagine that's what the alphadelta arrester is meant to take care of, but I'm not 100% sure.