I have a box in the garage for a socket with 3 wires (3x1.5mm). There was a need to supply power to two other places (septic tank level sensor and to the central heating switching station to some head closing the central heating circuit after reaching the temperature on the sensor). Since the cable leading to the socket is on the floor and there is no spout, I would like to use this cable to branch the power supply. The question is whether I can cut the cable and the phase conductor into the quick coupler and then let the phase conductors into the socket box and the other two new places, and whether the same should be done with the N and PE conductors, i.e. all PE to one quick coupler and all N to one quick coupler. Is the solution also acceptable?