OP
Spudnik
Why a key switch?
Discuss Smoke Detectors - Own Circuit or Lighting? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
Why a key switch?
It is a life saving bit of equipment so isolation is not an option I would suggest??
You wouldn't have emergency lights in a domestic property(residential).Smokes should always be kept on there own circuit(RCBO) protected.Each to there ownWhat about emergency lights then
If it is on it own circuit the consumer has the ability to switch if off, which is dangerous, however if if it on a lighting circuit they cant just isolate it
Irish
It is a life saving bit of equipment so isolation is not an option I would suggest??
Taken from the NICEIC tech manual
Clause 15.5(a) of BS 5839-6: 2004 recommends that the normal supply for a Grade D system should be derived from the public electricity supply, either via an independent circuit at the dwelling’s main distribution board with no other electrical equipment connected, other than a dedicated monitoring device to indicate failure of the normal supply, or a separately protected regularly used local lighting circuit. Clause 15.5(a) of BS 5839-6: 2004 recommends that the normal supply for a Grade D system should be derived from the public electricity supply, either via an independent circuit at the dwelling’s main distribution board with no other electrical equipment connected, other than a dedicated monitoring device to indicate failure of the normal supply, or a separately protected regularly used local lighting circuit.
So no to putting it on a lighting circuit
if just adding/upgrading then as long as you put in some form of isolation ie key switch so that they can be maintained etc without killing lighting then all is well. seems to contradict itself but for the sake of it,
Does this also mean that we need to put a keyswitch next to each pendant as well?
Reply to Smoke Detectors - Own Circuit or Lighting? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.