Cables are designed to perform specific functions. The main function of the power cables is to transmit and distribute electricity. Electric energy can be transmitted by either overhead systems or underground cables. Electrical cables are an assembly of one or more individually insulated electric conductors usually held together within an insulating cover. This overall assembly is used for the transfer and distribution of electrical energy.

The electrical wires and cables can be installed underground for the purpose of permanent wiring within buildings, buried in the ground and also can run overhead or exposed. The use of Flexible power cables are in mobile tools, machinery and portable devices.

Short circuit rating

Generally the conductor size required for installation is stated by its ability to carry short circuit current rather than sustained current. During a short circuit, there is a sudden rush of current a few times followed by a slower flow for some time until the protection switchgear operates, generally it take 0.1 to 0.3 seconds.

Current carrying capacity

Current carrying capacity, voltage drop and short circuit rating plays an important role in the selection of optimum size of the conductor. The safe carrying capacity of underground cables is determined by the maximum allowable temperature rise.

Voltage drop

The maximum voltage drops from a source to load is another aspect  in the choice of power cable conductor design.

The first is the choice of material used for the wire is Copper as it is a better conductor. Copper is a better conductor and will have less voltage drop than aluminium for a particular length and wire size.

Fybros, manufacturer of best quality wire and cable has a wide collection of wires & cables, switchgears, lighting systems, switches and accessories that fulfills customer specific requirements by meeting international quality standards. Modular switches, switchgear, LED Lighting & Fixtures and Control Boards are also available.

When meeting international health and performance quality requirements, the range of wires and cables can meet the specific needs of consumers.

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