Multiplex Cables are made up of several conductors (1, 2 or 3 insulated and 1 bare) twisted together according to their type: Duplex Cable (one insulated and one bare conductor), Triplex Cable (two insulated conductors and one bare) or Quadruplex cable (three insulated conductors and one bare).
What is a Duplex Cable?
As we have already mentioned, the Duplex Cable is made up of two conductors isolated from each other, but which have been positioned in a twisted or intertwined manner. However, this type of cable can also be found in a parallel position, without affecting its functionality.
Duplex Cables are characterized by:
· They are used in overhead secondary distribution circuits.
· This type of cables should be used in low voltage devices such as appliances, lamps, radios, among others. Since its capacity to conduct electric current is low.
· They are characterized by being easy to install. Therefore, they must be used according to their potential.
· One of the biggest uses todays is in Christmas tree lights.
Aluminum duplex cables are used for electrical connections supported by a bare messenger neutral from the secondary public network that passes through the sector to the meter or meter panel, in public lighting circuits and as a closed-type secondary network. This type of conductor can be used in dry and wet locations.
What is a Triplex Cable?
Triplex cables are made up of two insulated conductors and one bare conductor that can be AAC, ACSR or AAAC-6201-T81 twisted together; the phase and neutral conductors are made with concentrically stranded aluminum alloy wires, respectively; the insulators are covered with a uniform layer of black polyethylene thermoplastic material (PE-Carbon Black) or cross-linked polyethylene (XLPE), also black, resistant to humidity, heat and sunlight; subsequently the two conductors are twisted together.
Aluminum triplex cables are used for electrical connections supported by a bare messenger neutral from the secondary public network that passes through the sector to the meter or meter panel, in public lighting circuits and as a closed-type secondary network. This type of conductor can be used in dry and wet locations.
What is a Quadruplex Cable?
Aluminum Quadruplex Cable is used in underground secondary distribution systems. They can be installed in ducts or directly buried.
The Aluminum Quadruplex Cable is made up of three insulated conductors and one bare conductor that can be AAC, ACSR or AAAC-6201-T81 twisted together; the phase and neutral conductors are made with concentrically wired aluminum alloy wires, respectively. In the Quadruplex Cable, the insulation is covered with a uniform layer of black polyethylene thermoplastic material (PE-Carbon Black) or cross-linked polyethylene (XLPE), also black, resistant to humidity, heat and sunlight; subsequently the two conductors are twisted together.
The Quadruplex Cable is generally used for electrical connections supported by a bare messenger neutral from the secondary public network that passes through the sector to the meter or meter panel, in public lighting circuits and as a closed-type secondary network. Quadruplex Cable can be used in dry and wet locations.
The difference in the price of aluminum compared to copper does not lie in quality, but in the recent increase in the cost of copper, which has resulted in increases for manufacturers and end customers. Currently, copper is increasingly scarce and in greater demand, which generates large increases in its price. For this reason, aluminum has become a more attractive offer for manufacturers of electrical materials and end users.
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