Spotted a clever grounding method while hiking in Switzerland

I was on a trail in the Alps last month and stopped at a small mountain hut for lunch. The owner was having trouble with a light fixture, and I offered to take a look since I've done some basic wiring before. He showed me how they use a special kind of clamp for grounding rods that handles wet soil really well. It was a simple brass piece that screwed on, way easier than what I'm used to seeing. We got the light working, and he explained that in high moisture areas, they always double up on sealant too. It made me think about how we handle outdoor jobs here, especially near water. Has anyone else run into different grounding tricks from other places? I'd love to hear if there are better ways to deal with damp conditions.

3 comments

3 Comments

nathanjenkins1mo ago

Seen enough wiring jobs fail to buy into special clamps or clay packs. That bentonite clay @fiona739 mentioned sounds messy and probably washes away in real rain. Brass might not corrode but it's soft and costs way more than a standard coated clamp with good sealant. Most times the fancy fix is just overthinking a simple problem. If your basic ground is done right with the right materials for your area, you're already set.

fiona7391mo ago

That brass clamp for wet soil you mentioned reminds me of something I read in a DIY magazine last year. They said in coastal areas, some folks pack bentonite clay around the grounding rod to keep a good connection in shifting, wet dirt. It's supposed to help stop corrosion over time, which makes sense with your brass clamp example. I always figured extra sealant was key, but that clay trick seemed clever for really damp spots.

taylor.matthew1mo ago

Ever see those old grounding rods wrapped in tar tape? My neighbor swears by that method for wet ground.