Difference between 3 Core, 3.5 Core and 4 Core cable. / How to select core of cable? / what is core.

Описание: Difference between 3 Core, 3.5 Core and 4 Core cable. // How to select core of cable ? // How to select cable ?


3-Core Cables:
These cables are used generally for a perfect balanced 3-phase system. When the currents on the 3-live wires of a 3-phase system are equal and at an exact 120° phase angle, then the system is said to be balanced. The 3-phase loads are identical in all respects with no need of a neutral conductor.

3.5-Core Cables:
A 3-phase system may have a neutral wire. This wire allows the 3-phase system to be used at higher voltages while it will still support lower voltage single phase loads.
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.

4-Core Cables:
When there is severe out-of-balance conditions, the amount of fault current will raise to a very high level. Generally in the case of linear loads, the neutral only carries the current due to imbalance between the phases.

#3corecable #3.5corecable #4corecable


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