MyOtherAcctsAPorsche t1_j1hw43z wrote on December 24, 2022 at 2:13 PM

Reply to comment by ZAFJB in Can I install this single pole switch in place of the dimmer switch that was here? by Affectionate_Cronut

Ah, ok, you mean underground ones. We use conduits in the wall, either metal tubes, or plastic corrugated conduit, I thought you meant those.

ZAFJB t1_j1ig7gf wrote on December 24, 2022 at 4:57 PM

In most construction, wiring now goes in the cavity in walls.

In some places like the UK, wiring can be direclty rendered in the wall.

MyOtherAcctsAPorsche t1_j1iikzj wrote on December 24, 2022 at 5:15 PM

We make houses out of solid brick, or brick that, while hollow, you can't pass wires through. The wall is built, then a channel for the plastic conduit is carved into it.

This is standard: https://i.imgur.com/rZdWBD9.png