shower

tommy-trucker · Sep 9, 2009

Hi all
I've been asked to put in a shower needing a 40 amp breaker but there is only a 30 rcd on the 1 half of the board what is the easiest way of doing this as a freind of mine sid that as long as you have a disconection of .5 secs you dont need to but i cant find anything to confirm this. is this correct or is he quoting something that was ok in the past?
Please help me clear this up
Tom

Mac · Sep 9, 2009

Would that be a 30mA RCD mate

tommy-trucker · Sep 9, 2009

yes it is

Mac · Sep 9, 2009

The shower needs to be RCD protected if it's going in the bathroom,i assume it's going in the bathroom.What are you asking mate

tommy-trucker · Sep 9, 2009

it is going in the bathroom but a friend of mine said it does not have to be if it has a short disconection time but i could not find this anywhere and i just wanted to clear the confusion up

claire_r · Sep 9, 2009

if there is no space on the rcd protected side of the board you would need to split the tails at incoming and put in a 3 way board, 30ma rcd, 40a breaker for shower and 6a for the lighting circuit that would include the bathroom light to comply with 17th edition. =0)

tommy-trucker · Sep 9, 2009

there is space on the rcd side but in the osg it has a 30ma rcd to cover circuits not exceeding 32a and i need to put in a 40a

stumas · Sep 9, 2009

tommy-trucker said:
there is space on the rcd side but in the osg it has a 30ma rcd to cover circuits not exceeding 32a and i need to put in a 40a

all curciuts in a room containing a bath/shower p 69 on site guide all curcuits to be protected by 30ma rcd

tommy-trucker · Sep 9, 2009

ok read that but why on p.24 does it say circuits not exceeding32a

stumas · Sep 9, 2009

tommy-trucker said:
ok read that but why on p.24 does it say circuits not exceeding32a

thats for anywhere eles other than a special location a shower room is a special location

old regs was ok for shower not to be rcd protected but not now

hope this helps

Mac · Sep 9, 2009

Protection
All electrical circuits within bathrooms must be protected by Residual Current Devices (RCD) not excedding 30mA. This applies all electical equipment whether it is controlled a switch in the bathroom or remotely switched.
Equipment for bathrooms
Electrical equipment may be identified as having a certain level of mechanical and moisture protection, these are quoted as 'Ingress Protection' (or IP) numbers - such as 'IPXY', where X and Y are numbers, the X showing the level of mechanical protection and Y showing the level of moisture protection - in both cases, the higher the number, the better the protection. If a piece of equipment does not have an IP number, it must not be used in zones 0, 1 or 2 (or elsewhere having a wet/damp environment