Something I'm not quite getting.
In table 7.1(i) of onsite guide the max circuit length of (for example) a lighting circuit on 6 amps, with rcbo and wired in 1.5mm is 106 meters.
Where does this 106 meters come from because if max volt drop allowed is only 3% for lighting, 106m works out to 8% volt drop?
same sort of case for ring circuits.
What am I missing?
In table 7.1(i) of onsite guide the max circuit length of (for example) a lighting circuit on 6 amps, with rcbo and wired in 1.5mm is 106 meters.
Where does this 106 meters come from because if max volt drop allowed is only 3% for lighting, 106m works out to 8% volt drop?
same sort of case for ring circuits.
What am I missing?