Should I use 3C or 5C for outdoor power supply

Why do I need a 3.5 core cable?

It is not likely in such cases that the loads will be identical, so the neutral will carry the out-of-balance current of the system. The greater the degree of imbalance, the larger the neutral current. When there is some degree of unbalance and the amount of fault current is very small, then 3.5 core cables are used.

Do I need a GFCI outlet if I run power outside?

When running power outside, a GFCI-equipped outlet is required by code in all areas exposed to moisture, such as the outdoors, and ensures safety. When adding an outdoor outlet, be sure to choose an outdoor-rated, weatherproof model with built-in, high-sensitivity GFCI.

How many conductors should be used in a multi-core cable?

When the load concerned to this type of situation is fed through a multi-core cable, it is necessary to use a 5-Core or 6-Core Cable. In this condition, two (or three) conductors can be used in parallel formation to carry the high amount of generated unbalanced currents.

Is a permanent power outlet necessary?

For lighting, lawn tools used on a regular basis, or power needs for outbuildings, you need a permanent power solution for safety. This can involve an outdoor outlet addition to your home's main structure, or wiring run remotely to an outbuilding.

When should a multi-core cable be used?

Some conditions may arrive when the amount of fault (neutral) current becomes very large than the phase currents. When the load concerned to this type of situation is fed through a multi-core cable, it is necessary to use a 5-Core or 6-Core Cable.

Which non-linear loads produce 3rd order harmonic currents?

The non-linear loads such as switch-mode power supplies, computers, office equipment, lamp ballasts and transformers on low loads produce third order harmonic currents (Definition of Harmonics and Their Origin) which are in the phase of all the supply phases.