Hi,
when we planned the electrical system, we included a 5-core underground cable as a reserve for the garden. It is intended for future garden lighting and power supply. The cable comes out roughly in the middle of the property, under the terrace.
I’m not looking for advice on how to properly connect the cable—that will be done by professionals.
But for my further garden planning, I have the following questions:
when we planned the electrical system, we included a 5-core underground cable as a reserve for the garden. It is intended for future garden lighting and power supply. The cable comes out roughly in the middle of the property, under the terrace.
I’m not looking for advice on how to properly connect the cable—that will be done by professionals.
But for my further garden planning, I have the following questions:
- Can I split this cable into two independent circuits? There is a simple switch inside that is already planned for this purpose. It could later be replaced with a double switch to control each circuit separately.
- Can I then run one circuit to the left side of the garden and the other to the right side? What happens to the green/yellow PE (protective earth) conductor in this case?
Hello
The 5-core cable allows for two electrical circuits. I would distribute these outdoors in an empty junction box. One circuit with Brown, Blue, and Green/Yellow, and the second with Black, Gray (Blue), and Green/Yellow. If you use Black, Brown, and Gray as the live wires (L) and return on Blue (N), you might quickly overload the Blue wire.
Alternatively, you could install a sub-distribution board outside. This way, you save on wiring inside the house.
Steven
The 5-core cable allows for two electrical circuits. I would distribute these outdoors in an empty junction box. One circuit with Brown, Blue, and Green/Yellow, and the second with Black, Gray (Blue), and Green/Yellow. If you use Black, Brown, and Gray as the live wires (L) and return on Blue (N), you might quickly overload the Blue wire.
Alternatively, you could install a sub-distribution board outside. This way, you save on wiring inside the house.
Steven
For very long cable runs, not only the voltage drop must be taken into account but also the disconnection conditions in case of a short circuit.
If the fuse trips too late, there is a risk of fire.
If the cable insulation is scorched or damaged, hazardous touch voltages can occur.
A residual current device (RCD) upstream may also trip too late at these lengths.
Therefore, the loop resistance must definitely be measured.
Electricity can hurt and cause serious injuries.
If the fuse trips too late, there is a risk of fire.
If the cable insulation is scorched or damaged, hazardous touch voltages can occur.
A residual current device (RCD) upstream may also trip too late at these lengths.
Therefore, the loop resistance must definitely be measured.
Electricity can hurt and cause serious injuries.