Power cables are the lifelines of the modern world that transmit electricity from power plants
 to homes, industries, and critical infrastructure. These cables, which are produced in different
 types and with different voltages, play an essential role in supplying the electricity needed by
 humans. In this section, we will introduce the components and performance of the power cable, 
its different types and important factors in choosing the right cable.

Power cable performance
The power cable consists of different parts, each of which has a specific task.
Conductor: The main core of the power cable is made of copper or aluminum and is 
responsible for the transmission of electricity.
Insulation: It is a covering layer on the conductor that is made of various materials 
such as PVC, XLPE or EPR, and its task is to prevent the leakage of electricity and electrocution.

Protective layer: In some cables, protective layers such as woven tape or metal armor 
are used to increase the strength and resistance of the cable against external factors.
Coating: It is an outer layer that protects the cable from environmental factors such as
 moisture, UV rays and chemicals. Introduction of types of telecommunication cables

Different types of power cables

Power cables are produced in different types according to voltage, application 
and installation conditions. Some of the most common types of power cables are:

Low voltage cable: It is used for voltages less than 1 kV and is used in electrical
 installations of houses and buildings.
Medium voltage cable: It is suitable for voltages between 1 and 33 KV and is used
 in urban and interurban electricity distribution networks.
High voltage cable: It is used for voltages higher than 33 KV and is used in high 
voltage power transmission lines and power plants.
Ground cable: used to transmit electricity underground and is resistant to moisture,
 corrosion and mechanical pressure.
Submarine cable: It is suitable for transmitting electricity under water and is resistant
 to water pressure, corrosion and marine factors.

Choosing the right power cable

Choosing the right power cable for each project depends on various factors such as voltage,
 current, installation conditions and cable length. When choosing a power cable, you should
 pay attention to the following:

Voltage: The voltage of the cable should be considered proportional to the voltage of the power grid.
Current: The current passing through the cable should not exceed its permissible limit.
Installation conditions: The cable must be resistant to environmental conditions such as 
humidity, heat and cold.
Cable length: The voltage drop is higher in longer cables, so you should use a cable of the right size.
What is the use of smart cable?