Re: Replacing rewirable fuse consumer unit with RCD - What tests to determine suitabi
Not that I am endorsing the use of a single Rcd covering the whole of the installation but.
where lies the danger other than Granny(which can be overcome by the use of an emergency light)falling down the stairs because its dark
So the consequence of operation of any single protective device is mainly inconveniance
The domestic smoke alarms properly wired in would be via a local lighting circuit
Granny, when getting out of bed, would have to insure that she left the downstairs hall light on if a fault on the upstairs wasn't going to assist her fall, so the the use of Rcbos is no where near a complete adherance to the regs,because she can still take a tumble with those Rcbos and it still could remain an inconveniance if a single circuit dis connects
Where is the danger of an whole installation Rcd ? other than inconveniance, its all a big to do about very little
Another thing we ought to remember is that a satisfactory installation that has no problems and the appliances used are in good condition,it may have very few occasions of nuisance tripping of the up front Rcd
While agreeing that Rcbos for each circuit is an ideal that gives a bit of quality to the installation,it is by no means the only way to have accepted compliance and is probably installed far less than the twin Rcd boards
Economics also comes into the argument
The client, if given the option, may wish to pay for the additional cost of a full rcbo board ,another client may wish to keep costs down by using a 17th edition "compliant" twin rcd board
I would explain and give them the choice of set up rather than be a spark who only installs Rcbo s
Not that I am endorsing the use of a single Rcd covering the whole of the installation but.
where lies the danger other than Granny(which can be overcome by the use of an emergency light)falling down the stairs because its dark
So the consequence of operation of any single protective device is mainly inconveniance
The domestic smoke alarms properly wired in would be via a local lighting circuit
Granny, when getting out of bed, would have to insure that she left the downstairs hall light on if a fault on the upstairs wasn't going to assist her fall, so the the use of Rcbos is no where near a complete adherance to the regs,because she can still take a tumble with those Rcbos and it still could remain an inconveniance if a single circuit dis connects
Where is the danger of an whole installation Rcd ? other than inconveniance, its all a big to do about very little
Another thing we ought to remember is that a satisfactory installation that has no problems and the appliances used are in good condition,it may have very few occasions of nuisance tripping of the up front Rcd
While agreeing that Rcbos for each circuit is an ideal that gives a bit of quality to the installation,it is by no means the only way to have accepted compliance and is probably installed far less than the twin Rcd boards
Economics also comes into the argument
The client, if given the option, may wish to pay for the additional cost of a full rcbo board ,another client may wish to keep costs down by using a 17th edition "compliant" twin rcd board
I would explain and give them the choice of set up rather than be a spark who only installs Rcbo s
