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OSG Standard Circuits - 3A lighting

Former Community Member
Former Community Member
As we are all using led lamps / fittings now it seems this should be a standard circuit.

3A MCB with 1.0/1.0 cable


Lighting circuits used to be based on 100w incandescent lamp / room at 1800 lumens which is equiv to 20w led.

What are the figures for max distance for a 3A type B using 1.0/1.0 as an addition in table 7.1 page 66 in OSG?
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    geoffsd:
    Zoomup:
    geoffsd:


    Why? 1.00 sq.mm. T&E, method C, has a CCC of 16A.


    Why 1.0mm2?





    Hi Zoom.


    You have moved the question mark and completely altered the meaning of what I wrote.


    Hello Geoff. Were you not implying that a 16 Amp rated cable in the form of 1.0mm2 protected by a  B3 M.C.B. is too large, and smaller cables could be used?


    Z.


     


Reply
  • 0
    geoffsd:
    Zoomup:
    geoffsd:


    Why? 1.00 sq.mm. T&E, method C, has a CCC of 16A.


    Why 1.0mm2?





    Hi Zoom.


    You have moved the question mark and completely altered the meaning of what I wrote.


    Hello Geoff. Were you not implying that a 16 Amp rated cable in the form of 1.0mm2 protected by a  B3 M.C.B. is too large, and smaller cables could be used?


    Z.


     


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