Conductors

Conductors

All Aluminium Alloy, AL 59 conductor, AAC

1) All Aluminium Conductors – AAC

There is a reason why most people prefer AAC conductors over ACSR. It is because they offer excellent sag-tension characteristics, improved electrical properties, and superior corrosion resistance. Moreover, these are designed to get better strength to weight ratio.

AAC conductors are widely accepted in the distribution of high and medium voltage transmission lines as compared to a conventional ACSR conductor because:

  • These are lighter in weight
  • AAC conductors have better strength & current carrying capacity
  • Superior corrosion resistance makes them a preferred choice
  • These have lower electrical losses

2) Aluminium Conductor Steel Reinforced – ACSR UPTO 765 KV

It is one of the bimetallic conductors. The external layers are composed of hard-drawn aluminium AA1350-H19 and the inner layers are composed of steel wires. High mechanical performances are guaranteed by the steel wires. Because of good transport capacity and the high value of specific mechanical resistance, this type of conductor is used for long and medium spans. With the infusion of the completed conductor with grease or the application of grease to the core, an added corrosion protection is available.

3) All Aluminium Alloy Conductor – AAAC

High strength Aluminium-Magnesium-Silicon Alloy is what concentric lay stranded aluminium Alloy Conductors (AAAC) are made of. Special materials, Magnesium and Silicon, are used in all aluminium alloy conductors.

4) AL-59 CONDUCTORS

AL-59 alloy conductors have special importance while designing transmission line networks, considering the development of new distribution as well as power transmission grids by power incumbents all over the globe. Optimizing the cost of the entire grid, an AL 59 conductor enables superior power evacuation.

With a maximum current carrying capacity of 838 amperes, ACSR conductors have an obvious limitation. This is where AL-59 alloy conductors are better. The materials of AL-59 alloy conductors allow them to transfer up to 1307 amperes of current and overcome this limitation. Not only that, but they also evacuate up to 1405 mw of power that is 56 percent higher if compared to ACSR conductors. The resistivity in ACSR/AAAC conductors is higher than that of an AL 59 conductor.

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