In this article, we will be looking first into the wire and cables in general and then some information regarding the specification of the 33kv industrial cable with the XLPE insulation.
One of the most essential elements of overhead power wires is the aerial bundling of individual wires.
When installing an overhead wire, it is just as vital to select the appropriate type of overhead cable as it is to select an economically viable conductor size and an economically viable transmission voltage.
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The following characteristics are necessary for an effective conductor:
A high degree of conductivity Excellent tensile strength for withstanding pressure from mechanical sources Reasonably priced without sacrificing many of the product's other desirable qualities A lower total mass when compared to its volume Materials used in overhead cables and their purposes Copper was the material of choice for making overhead cables in the beginning, but aluminum has since taken its position due to its lower cost and lower weight in comparison to copper conductors of the same resistance.
The following is a list of different types of material that are considered to be good conductors.
High Voltage Xlpe Cable Types
Copper wires in the ceiling Copper has better electrical conductivity and stronger tensile strength than other materials, making it ideal for use in overhead wires.
Because of this, hard-wired copper is an excellent option for use in overhead wires.
Copper has a high current density, which translates to a higher current-carrying capacity per unit of cross-sectional area.
This property is referred to as the conductivity of copper.
As a consequence, the copper conductor has a cross-sectional area that is not particularly large.
In addition to this, copper has a long lifespan.
However, because of its high price and limited availability, copper is only occasionally utilized for the wiring of electricity wires.
Aluminum air wire Aluminum has a conductivity that is approximately sixty percent lower than copper.
High Voltage Xlpe Cable
This indicates that in order to maintain the same resistance, the diameter of the aluminum conductor must be approximately 1.26 times larger than the diameter of the copper conductor.
On the other hand, the weight of aluminum conductors is approximately half that of copper conductors that are equivalent.
Aluminum also has a lesser tensile strength than copper does, which is another reason why aluminum is less commonly used.
Copper is superior to aluminum in many respects, including cost, electrical conductivity, tensile strength, weight, and many more.
Aluminum also has fewer environmental impacts than copper.
As a result, aluminum is frequently utilized in the production of air conductors.
High Voltage Xlpe Cable Best
Cadmium copper aerial cable Copper-cadmium alloys have anywhere from 98 to 99% copper and as little as 1.5% cadmium by weight.
Copper's tensile strength is increased by around 50% when just 1% cadmium is added to the mix, although the metal's conductivity is only reduced by approximately 15%.
Because of this, copper-cadmium conductors are suitable for usage across extraordinarily large spans.
However, because cadmium is so expensive, the use of such conductors might not be cost-effective in many situations.
Other types of materials that are utilized during the production of overhead cables There are a wide variety of additional metals and alloys that are also capable of conducting electricity.
Silver is more readily available than copper, but because of its high price, it is rarely used in everyday applications.
Conductors can also be made out of galvanized steel in some applications.
Steel conductors are not appropriate for the effective transmission of electricity due to steel's low electrical conductivity and very high tensile strength.
