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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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  • 0
    No, in reply to the idea of using a 3A MCB on light circuits.



    Why (use a 3A MCB)?


    1.00 sq.mm. T&E, method C, has a CCC of 16A.
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  • 0
    No, in reply to the idea of using a 3A MCB on light circuits.



    Why (use a 3A MCB)?


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