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Wiring PIR sensors, Extractor fans, LED panel lighting, overide switch. In one circuit

Former Community Member
Former Community Member
Hi,


I am currently level 2 Qualified 2365 and beginning my level 3. 

​​​​​As my interest in the field increases I always observe electrical installations, I noticed one day in a public toilet, the ceiling panels were lifted and the Extractor fan, PIR sensor, Panel lighting, and override switch we're all wired in one circuit using wago connectors. 

Now I can't help it but I really need to work out how this was wired in a wiring diagram, I have an idea as to how, but not sure.


But my question is, as normal do we calculate the whole load of this circuit and then use the correct rated mcb, and if anyone could provide me with a wiring diagram or explain how it works. I think I even noticed some resistors used. 


Thanks for your help
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    If you think that switched line is an "other line conductor" by all means leave the sleeving off. However, if you feel that Table 51 applies, the conductor must be marked brown.



    But if you consider the wire to be a signal or 'control' wire - (trigger to a fan or communications line between smoke alarms perhaps being better examples than a switch wire supplying a light) the table 51 permits Brown, Black, Red, Orange Yellow, Violet, Grey, White, Pink or Turquoise. (Arguably green should be listed too - since the recent revision to 514.4.5)


      - Andy.
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  • 0

    If you think that switched line is an "other line conductor" by all means leave the sleeving off. However, if you feel that Table 51 applies, the conductor must be marked brown.



    But if you consider the wire to be a signal or 'control' wire - (trigger to a fan or communications line between smoke alarms perhaps being better examples than a switch wire supplying a light) the table 51 permits Brown, Black, Red, Orange Yellow, Violet, Grey, White, Pink or Turquoise. (Arguably green should be listed too - since the recent revision to 514.4.5)


      - Andy.
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