The ETCI (Electrotechnical Council of Ireland) and the electrical contractors groups have gotten really strict about one colour coding issue here.
All new properties are required to have interlinked smoke alarms that are non-battery powered, i.e. if one smoke alarm gets triggered it has to sound all of the others. A lot of electricians have been using 3 core cable the brown and blue carrying the power and the earth to signal the other alarms (totally illegal)
A minimum of 2 are legally required in houses but it's standard practice to install a lot more.
If it was a commercial premisis it would have to be a full fire alarm system complete with fire resistant cabling etc.
On another point:
Are there any colour codes in Europe for SELV (12/24 V) circuits?
Low voltage halogen lighting's becoming very common as are other SELV appliences like in-shower fans etc.. meaning that attic spaces are often criss-crossed with cable carrying 12V or 24V. It would be handy if these cable could be quickly identified as non-230V.
It could prevent accidental connection of 230V to 12V or visa versa in a dodgy DIY job!
[This message has been edited by djk (edited 07-24-2003).]
