Well there is no regulation saying they can't, and water pipes aren't designed to leak so no reason why they shouldn't. Just employ some common sense such as not having valves or joints directly over the DB, and if it's cold water, then insulate the pipe so there is no risk of condensation forming on them and dripping down onto the DB.

regards, burn

Well there is no regulation saying they can't, and water pipes aren't designed to leak so no reason why they shouldn't. Just employ some common sense such as not having valves or joints directly over the DB, and if it's cold water, then insulate the pipe so there is no risk of condensation forming on them and dripping down onto the DB.

regards, burn

Thank you.

Jus to to add here, also protection from water shall be complemented by IP Rating of the panel.