A friend living locally recently had a kettle failure resulting in the RCD in the Consumer unit tripping - nothing too surprising in that bit.
Now there is a sign on the CU saying that "This installation or part of it is protected by a device........etc etc etc"
The circuits in the house are kitchen, downstairs power, upstairs power, immersion heater, cooker, upstairs lighting and downstairs lighting.
Tripping of the RCD isolated the kitchen and downstairs power but not the lighting (seems sensible and happy with that) or upstairs power (surprised me) (don't know about the cooker and the immersion heater to be honest).
now I have previously seen CU laid out as follows
mcb|mcb|mcb|mcb|RCD|mcb|mcb|mcb|MAIN On/OFF
and on these it is clear which circuits are RCD protected and which are not - but in her case the layout is
Bell transformer|RCD|mcb|mcb|mcb|mcb|mcb|Main On/OFF
each MCB is clearly labelled but there is no clue as to which ones are RCD protected.
Is it normal/safe for upstairs power not the be RCD protected in this type of setup?
Should the Non RCD circuits be labelled?
The house dates from about 1990 and the electricals are all still thought to be original.