Electrical cables are conductors which used to transfer electrical energy (flow of electrons) between different points. Cables are designed and manufactured based on different applications.
Electric cables consist of three parts:
The important technical parameters of electrical cables are as follows:
Classification of cables based on conductor types:
Classification of cables based on insulating material:
Insulating material have very low electron mobility and are used to cover the conductors.
1- Thermo plastic
2- Thermoset (for higher temperatures)
Classification of cables based on application:
Classification of cables based on voltage level:
1- Low voltage (up to 1kV)
2- Medium voltage (1kV to 36kV)
3- High voltage (beyond 36kV)
Classification of cables based on tension level:
1- L.T: Low Tension (up to 1kV)
2- H.T: High Tension (1kV to 11kV)
3- S.T: Super Tension (22kV to 33kV)
4- E.H.T: Extra High Tension (33kV to 66kV)
5- Oil Filled (66kV to 132kV)
6- Extra super voltage (beyond 132kV)
Classification of cables based on construction:
1- Belted cable (up to 22 kV)
2- Screened cable (22 kV to 66 kV)
3- Pressure cable (beyond 66 kV)
Classification of cables based on installation:
Related standards
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