light under bath?

Therse is no electrical reason not to move the kitchen light to the centre of the room.

Possible reasons for the light being off centre are

1. On a rewire someone did not want to remove the bath side and so off set the light
2. On a newbuild the walls of the kitchen were not built on the electrical first fix and the electrician could not read a plan or the walls were altered later.

Probably lot of other reasons

Adam

The OP doesn't say specifically, but most likely that a centre point given by two crossed diagonals doesn't correspond to a joist location, so the light msy be more or less central in one plane but off-centre in the other depending on joist position.

Best to have a light under the bath and near the shower so that any leaks or improper use mean the water runs through the hole in the ceiling where the light is fitted instead of bringing the ceiling down. Fluorescent or other low energy lights are best because they are not hot enough to shatter when water reaches them. Do make sure water pipes are earthed to current standards!

If an uninterrupted stream of water was escaping from a plastic outlet from a plastic bath and it reached only a live wire presumably the water in the bath would become live but no current would flow unless an occupant touched an earthed tap?

No zone 0 is in the bath. Under the bath it's not zoned

as said no regulations on it. If it were mine I'd use a class 1 metal earthed fitting though, that way if the bath overflows no-one gets electrocuted.

NT