to calculate the cable size of a run of 30 meters long
you first will have to know the current of the appliance
use the voltage drop formula
V d = (mVxIxL)/1000
once the voltage drop is less than 2.5% of the nominal voltage,
the cable should be upsize.
Assuming being fed by c32 breaker for start load minimum cable size SWA is 70mm which will go to 456 meters
A 10k (kilometers) race is 10,000 meters.
Omar would have run 1500 meters after 15 minutes.
Wire sizing is determined by the amount of amperage that the connected device draws. Look on the nameplate of the motor and state the amperage. Then the question can be answered.
Because of resistance drop; if the cable is too long, you could be drawing additional amperage because of line loss (inductive load), or losing excessive power in the cable. Additionally, the gauge of the cable should be considered as well. If you are using a GFI circuit breaker, too long of a run can cause the GFI to continually pop because of inductance and line loss.
Assuming being fed by c32 breaker for start load minimum cable size SWA is 70mm which will go to 456 meters
abc
1 gauge cable should do the job
15 meters is the reccomended maximum run, with an extender you can run up to 300ft.
4sqmm
take the full load current 1.732*415*I*0.85*efficiency=115*1000 => I? Depending on the value of the full load current and designed and ambient temperatures of the selected category of the cables, and voltage drop per unit length, you can determine the cable size
Use 6 gauge
# 2-awg
The correct size of cable depends on the length of the cable run, as well as the voltage and current. Another consideration is what voltage loss is acceptable ? Safest answer would be to use a cable sizing table or online tool: http://www.solar-wind.co.uk/cable-sizing-DC-cables.html Hope that helps. G.
Like all supply cables, it all depends on the CSA of the cable
A split time is basically the time it takes to run a fraction of a race. If there is a 1500 meter race, there could be split times at 400 meters, 800 meters, and 1200 meters. So the time it took to run the first 400 meters of the 1500 meter race would be called a split time.
A parallel run of 750 MCM AWG conductors will handle 1000 amps. if we want 1000amps to flow, 250sqmm cable is enough.