I'm looking to put a smoke detector in which is mains wired via the existing light loop. Can I simply link it into the existing light loop by taking a two core and earth cable from an exisitng light to the smoke alarm, and then take a two core and earth cable from the smoke alarm to the next light in the exisitng loop...? The lighting loop would then be
light -> light -> smoke alarm -> light -> light
with each -> being a 2 core and earth cable.
light -> light -> smoke alarm -> light -> light
with each -> being a 2 core and earth cable.