Hi,
I'm replacing 3 smoke alarms in my property, mains ones. The documentation for the new alarm says the I might have up to 4 cables coming into the alarm housing: Live, Neutral, Earth and Link. It says the 'Link' cable if installed is normally black.
I only have three cables going into the existing detector, brown (assuming live), blue (assuming neutral). The third is white! Logic would dictate that this is the Link cable, as you'd expect any earth connection to be properly marked and the old detector was all plastic so probably didn't need earthing.
If I disconnect the white cables from all three alarms, is there a quick multimeter test I can do to see if the white cables are connected to Earth or not?
Thanks!
I'm replacing 3 smoke alarms in my property, mains ones. The documentation for the new alarm says the I might have up to 4 cables coming into the alarm housing: Live, Neutral, Earth and Link. It says the 'Link' cable if installed is normally black.
I only have three cables going into the existing detector, brown (assuming live), blue (assuming neutral). The third is white! Logic would dictate that this is the Link cable, as you'd expect any earth connection to be properly marked and the old detector was all plastic so probably didn't need earthing.
If I disconnect the white cables from all three alarms, is there a quick multimeter test I can do to see if the white cables are connected to Earth or not?
Thanks!