Y
yarcyk
Hi everybody.
I have a question (still learning, passed 17th edition and part P, but I'm not yet registered).
If you use formula from On-Site Guide p.140 what the design current you put in the formula, to calculate max length of cable for 11.5V.
If 32amp then the maximum length of ring final would be around 20metres (both legs parallel) or 16 amps and then around 40 metres in total length of 2.5mm cable.
If this is right how would you wire second floor socket circuit if CU is in the basement (40 metres not quite enough for 3 rooms on 2nd floor).
Hope someone can explain.
Thanks
I have a question (still learning, passed 17th edition and part P, but I'm not yet registered).
If you use formula from On-Site Guide p.140 what the design current you put in the formula, to calculate max length of cable for 11.5V.
If 32amp then the maximum length of ring final would be around 20metres (both legs parallel) or 16 amps and then around 40 metres in total length of 2.5mm cable.
If this is right how would you wire second floor socket circuit if CU is in the basement (40 metres not quite enough for 3 rooms on 2nd floor).
Hope someone can explain.
Thanks