I am helping a friend who has just moved house and wants a shower fitting. The consumer unit is not wired as I have seen before. Can anyone comment on the following questions?
Should there be a seperate ring main for the kitchen?? The cooker is seperate but then only 1st and ground floor ring mains.
The ground floor ring main is the only one to have RCD protection (an RCBO)Should I be concerned about this? I know that in my house the RCD feeds all the MCBs (exept lights)so the shower, oven and all ring mains are protected.
Can an electric hob use an RCD or is there too much earth leakage?
Ditto an immersion heater.
The plan is to install a shower, needing 40A. It's an average size house with electric cooker and immersion. What diversity should be applied - will the main 100A switch be OK?
Would I want to RCD protect the shower?
As there is only a single slot left in the consumer unit if I do want to RCD protect the upstairs ring or the shower I need a bigger box. Can I take a spur to a smaller consumer unit and transfer say the lighting to that and group all the RCD protected circuits in this box with a big RCD on?
Thanks in advance for any help.
LEe
Should there be a seperate ring main for the kitchen?? The cooker is seperate but then only 1st and ground floor ring mains.
The ground floor ring main is the only one to have RCD protection (an RCBO)Should I be concerned about this? I know that in my house the RCD feeds all the MCBs (exept lights)so the shower, oven and all ring mains are protected.
Can an electric hob use an RCD or is there too much earth leakage?
Ditto an immersion heater.
The plan is to install a shower, needing 40A. It's an average size house with electric cooker and immersion. What diversity should be applied - will the main 100A switch be OK?
Would I want to RCD protect the shower?
As there is only a single slot left in the consumer unit if I do want to RCD protect the upstairs ring or the shower I need a bigger box. Can I take a spur to a smaller consumer unit and transfer say the lighting to that and group all the RCD protected circuits in this box with a big RCD on?
Thanks in advance for any help.
LEe