Electric energy can’t travel in air, it requires a medium through which it can travel from one device to another device, and that is where the use of electric cables comes in. An electric cable acts as a medium between two devices to take and supply electric power. Apparently, not every device operates on the same voltage; as a result, one electric cable can’t be used with every device, and due to this reason, a number of electric cables have been invented to meet every need. This is why the classification of electric cables is often done on the basis of their operating voltage, and that is what we have tried to cover briefly in this article.
Low Voltage Cables:
First, of come low voltage cables, these cables operate on voltage up to 750 V or 1000 V. These cables are commonly used for industrial installations in fields like public, industry, and infrastructures. They are also coated with thermoplastic or thermoset coatings to enhance their ability to transport electric current without any problem. Power cables, armored cables, rubber cables, halogen-free cables, fire-resistant cables, control cables, instrumentation cables, solar cables, special cables, and aluminum cables all these cables are low voltage cables. Some are used for installations where there is a risk of mechanical aggression; some are used for photovoltaic panels, some are used for public installations, some are used for private installations. Wherever there is a need for a low voltage cable, one of these cables fits perfectly.
Medium Voltage Cables:
Medium voltage cables operate on voltages from 1 kV to 36 kV; they are needed when electricity needs to be transported from electrical substations to transformer stations. Cables like RHZ1, HEPRZ1, MV-90, and RHVhMVh come under this division. All are designed for specific usages like RHZ1 and HEPRZ1 are used in places where there is a need for non-flammable cable for the distribution of energy, RHVhMVh is used where there is a need of a cable that can work perfectly in the presence of oils or chemicals. Therefore, all these cables are designed to be used in different environments and risks.
High Voltage Cables:
High voltages cables operate on voltage above 36 kV and therefore as used in power generating plants and electrical substations only as such high voltage can only be found there. Therefore, the use of a High Voltage Cable isn’t as common as a low voltage or medium voltage cable. For this reason, high voltage cables also don’t have many types like that of low voltage or medium cables. However, the existence of high voltage cables is as important as low and medium voltage cables, or you can say is even more as it indirectly supplies the electric power to the low and medium voltage cables.
Conclusion:
It must be clear
to you why a single electric cable can’t be used to supply energy and why the
low, medium, and high voltage cables were invented that too in various
different types.
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