I have a few questions regarding a bathroom renovation I am planning. Rather than put them all in one big post I thought I'd split them up, the first questions are about RCDs and FCUs.
Background
Currently my house doesn't have a bathroom upstairs. Instead there is a sort of en-suite toilet (with a Saniflo unit to deal with the waste) off the master bedroom. The Saniflo is connected via a switched FCU, the feed for this is from the ring that runs the house sockets. This ring is on the RCCB protected side of the consumer unit (see photo).
The ceiling light in the en-suite toilet is part of the upstairs lighting circuit and is switched via a wallplate outside the room, this circuit is on the unprotected side of the consumer unit.
Planned changes
I plan to take some space off the master bedroom to expand the en-suite to a full bathroom. The wall separating the two (which currently houses the light switch mentioned above) will be removed and a new partition wall will be created.
It is my understanding that current regulations and safety considerations specify that any circuits entering a bathroom should be protected with an RCD. Does the RCCB at the consumer unit satisfy this requirement for the Saniflo? As part of the renovation the Saniflow is being moved to a new location in the room which will mean moving the switched FCU to a new partition wall. The new location is far enough away from the bath and sink that it will not be in a numbered zone. Can I continue to use the same FCU and run it from the same ring?
I believe an RCD will need to be installed to protect the lighting/fan/shaver circuit to the bathroom. Running a new cable back to the CU is going to be very difficult so would it be acceptable to use an RCD protected spur from the existing upstairs lighting circuit, feeding the bathroom via one of these fitted in the wall outside the bathroom (above the door). The fuse would be changed to a 3amp one. Would this be sufficient to satisfy the regs as far as RCD protection is concerned?
I am aware at least some of this work is notifiable and that it should be carried out by a competent person.
Background
Currently my house doesn't have a bathroom upstairs. Instead there is a sort of en-suite toilet (with a Saniflo unit to deal with the waste) off the master bedroom. The Saniflo is connected via a switched FCU, the feed for this is from the ring that runs the house sockets. This ring is on the RCCB protected side of the consumer unit (see photo).
The ceiling light in the en-suite toilet is part of the upstairs lighting circuit and is switched via a wallplate outside the room, this circuit is on the unprotected side of the consumer unit.
Planned changes
I plan to take some space off the master bedroom to expand the en-suite to a full bathroom. The wall separating the two (which currently houses the light switch mentioned above) will be removed and a new partition wall will be created.
It is my understanding that current regulations and safety considerations specify that any circuits entering a bathroom should be protected with an RCD. Does the RCCB at the consumer unit satisfy this requirement for the Saniflo? As part of the renovation the Saniflow is being moved to a new location in the room which will mean moving the switched FCU to a new partition wall. The new location is far enough away from the bath and sink that it will not be in a numbered zone. Can I continue to use the same FCU and run it from the same ring?
I believe an RCD will need to be installed to protect the lighting/fan/shaver circuit to the bathroom. Running a new cable back to the CU is going to be very difficult so would it be acceptable to use an RCD protected spur from the existing upstairs lighting circuit, feeding the bathroom via one of these fitted in the wall outside the bathroom (above the door). The fuse would be changed to a 3amp one. Would this be sufficient to satisfy the regs as far as RCD protection is concerned?
I am aware at least some of this work is notifiable and that it should be carried out by a competent person.