Thread: Shed Power Question

What is the distance from the switch board to the shed?

The cable is probably 2.5mm sq. you can draw up to the rating of the circuit breaker/fuse which is 20 amp.

Originally Posted by NCArcher

The cable is probably 2.5mm sq. ....

If the shed is close to the house.... may be larger if it is further away.
We have a shed with a common circuit that is 24M from the switchboard to the first power point & whoever installed it ran the same sized building wire that is used for the hotwater & the stove.

10 amp, 15 amp and 20 amp circuits use 2.5mm2 cable. the difference is the number of points you can have on the various circuits. All use 20 amp breakers.

There are many variables that determine what each can carry.

My shed is about 15m from the main board.

My electrician used 6mm cable to run to the new shed and put a sub board in the shed with four circuits.

However, I requested this in case I want to run higher power (15a) equipment etc later.

If I just wanted a few GPOs I think he was just going to use 2.5mm.

Joel

Originally Posted by mdfdust

My question is, what is the likely size of the cable connection to my shed?

At least 2.5mm. It could be a larger cable and a 20A breaker installed due to a number of reasons.

What would be the maximum amount of amps I could draw over this likely installed cable

20A continous, more depending on the duty cycle of what you're operating. Circuit breakers have inverse-time properties so you can draw more current than what it's rated for as long as you then give it sufficient time in between. From memory you should be able to get 40A from between 30 to 120 seconds until it trips.