J
JUD
Ok. I've been trying to get my head round this all day but I'm getting nowhere.
On page 45 of the OSG (Table 7.1) it says the maximum length of a lighting circuit wired in 1.5/1.0 cable on a 6 amp Type B MCB is 90 meters.
However, working out the voltage drop for this length of cable I'm getting 13.76 Volts (after correction for operating temp) which is double the allowable VD for a lighting circuit.
Am I missing something?? Does anybody know how the values in the OSG are worked out??
Any help GREATLY appreciated!!
JUD
On page 45 of the OSG (Table 7.1) it says the maximum length of a lighting circuit wired in 1.5/1.0 cable on a 6 amp Type B MCB is 90 meters.
However, working out the voltage drop for this length of cable I'm getting 13.76 Volts (after correction for operating temp) which is double the allowable VD for a lighting circuit.
Am I missing something?? Does anybody know how the values in the OSG are worked out??
Any help GREATLY appreciated!!
JUD