1. Motors or electric machines are three-phase.

1. If the motor reaches the control room, there are only motor wires, no control wires, and the motor is three-phase. Then it is enough to use a cable with a cable size of 3×1.5+1×1. Considering that your distance is relatively long, the voltage drop will be relatively large, and if you use cables, it is probably for mobile or outdoor use. Considering the mechanical strength, it is recommended to use 3×2.5+1×1.5 cables. The minimum size for mobile cables is 1.5.

2. If there are control lines from the motor to the control room, for example, if it is necessary to control the start and stop of the motor near the motor, then 3 additional control lines need to be added. Then you need to use 3×2.5 4×1.5. I wonder if this cable is available? You can check the cable model number.

Two. The motor or electric machine is single phase.

1. When there is no control line, choose 3×6.

2. When there are control lines, choose 2×6 or 4×1.5. Such lines may not be available. Therefore, you need to choose a cable plus a control wire. If it is through a pipe, you can use a wire. You can choose two cables, one is 3×6 1×1.5. The other one is 3×1.5

Of course, it depends on whether there is a thermal protection component in the single-phase motor. If so, two more wires must be added.

To add, the resistance of 6 square meters of wire 1.5KM is 11.97 ohms. So the voltage drop is 119.7V when the current is 10A, which is too large. The ____ does not work. Choose another method.

Choose a resistor of 35 square meters to be 0.831 ohms. The voltage drop is still usable at 8V at 10A.

Just to add:

I have never seen a 5KW single-phase motor. The average single-phase motor is below 2KW. I have seen single-phase motors up to 2.2KW. So the motor you are talking about should be three-phase. But using cables would be a bit wasteful. If you have to lay 1500 meters, it is recommended to use overhead lines, which may be cheaper. However, now that the prices of cement and steel have increased, they are not necessarily much cheaper than the copper in cables. Haha, there is really no other way, I have to set up a line.