heat detector rcd?

[sima24]

Hi guys, got to price for a fitting 2 smokes in the house and heat in the kitchen, all interlinked, im unsure, does the heat detector in the kitchen have to be rcd protected? I was planning on jist feeding heat from kitchen light then linking from their. Board has no rcd protection. Thanks

 

[londonlec]

No it doesn't. Unless you're burying the cables for it >50mm in the wall.