Hello All

I plan to install some IP44 rated LV downlights for my wetroom and I'm
just wondering the correct way to go regarding wiring these up. I will
have 6 in total. A few questions spring to mind:

1. Should I RCD protect them and if so how? I am only familiar with an
RCD on a socket

2. Is IP44 ok for above a shower, distance from fixed head is about .5
metre. I was looking at IP65 but it looks as though IP44 should be ok.

3. Should I run each transformer from a single junction box or should
I use multiple junction boxes? if multiple how do I go about doing
this, do I just daisy chain them having a live out and a neutral out
and so on and so forth and running the switched live between them?

4. Whats the formula to determine if my existing circuit will be
capable of the extra load? how do I work all this out.

TIA

Cheers

Richard