5357 - College Design Calculations

[MrMugford]

Hi all,

According to my calculations (CCT9) - I am getting a 50A breaker on the sockets in the changing rooms leaving me with a 10mm cable to install. The reason why is because I’m calculating the sockets at full load.

Cable length 13.4m
Design current of 40.70A
Ambient temperature of 40c
Ref method B
90 degree PVC conduit

Is this viable or do I need to rethink my design?

 

[newfutile]

You Dont need to allow 13 amp per socket, just use either a standard ring 2.5 on 32 amp or a radial on a 16 amp 2.5, i would imagine its a wet area and will need suitable sockets and (RCD) Residual Current Device