ACSR Conductor Size Chart

In this article today we will tell you about the acsr conductor in a detailed way. First of all we will see how many types of aluminum conductors are used in the transmission lines. And how acsr conductor is better than another conductor. You can download a chart related to size current rating of acsr conductor in excel from the link given below-

Download ACSR size chart by clicking on link given below

Conductors used in transmission line

As we know, aluminum conductors have been replaced with copper conductors due to the combined factors of low cost, good conductivity, strong tensile strength, low weight, etc. Until aac, aaac and acsr conductors were discovered, copper conductors were used. The diameter of an aluminum conductor for the same current rating is more than that of a copper conductor which has the advantage of less corona loss in the aluminum conductor. All aluminum conductors are in stranded form due to good flexibility. There are four types of aluminum conductors, depending on the atmosphere in which the conductor is used. As we know that due to rusting, the life of the conductor is reduced. Therefore, which type of conductor will be used in which type of weather, it depends on what will be the weather and environment at the place of use.

Type of Aluminium Transmission Conductors-

1. AAC : All Aluminium Conductor

2. AAAC : All Aluminium Alloy Conductor

3. ACSR : Aluminium Conductor, Steel Reinforced

4. ACAR : Aluminium Conductor, Alloy Reinforced

AAC conductor-All Aluminium Conductor

AAC conductor is also known as aluminum stranded conductor (ASC). Electrolytically refined (EC grade) aluminum is used in the manufacture of such conductors. The aluminum used in this aac conductor is at least 99.5% pure. All aluminum conductors consist of one or more strands of aluminum wire, depending on the load and corrosive requirement. In places where the need for corrosive effect is high and tensile strength is low and the need for good conductivity is high, aac conductor is preferred at those places. Because of this aac is used in very few places in the electrical network.

AAAC CONDUCTOR- All Aluminium Alloy Conductor

The aluminum used in this type of conductor is not pure aluminum but made from a type of alloy. Alloy metals are made from an alloy of aluminum-magnesium-silicon. The chemical name of this alloy is aluminum alloy 6201. This alloy conductor gives a good electrical conductivity and better mechanical and tensile strength.

1- Due to the lighter weight of AAAC as compared to ACSR with the same power and current capability, AAAC can be used for purposes in the distribution network.

2- Its strength is at par with the ACSR conductor but it is lighter in weight due to the absence of a steel core.

3- Due to the use of alloy metal, its cost is more than aac and acsr conductor.

4-These AAAC conductors can be used in coastal areas due to their excellent corrosion resistance behavior.

5- This conductor is also used in river crossing.

6- AAAC is used in transmission and sub-transmission where light support structures are used such as mountains, rivers, etc.

7-It has less sag than AAC.

ACSR Cconductor- Aluminum Conductor Steel Reinforced

ACSR conductor consists of aluminum strands wrapped over steel core conductor. Aluminum conductor steel reinforced (ACSR) conductor consists of more than seven aluminum strands and a steel core conductor. Aluminum conductors are wrapped with galvanized steel in the center and aluminum conductors in outer layers of galvanized steel. ACSR conductors are of great use for long spans of transmission lines as these lines require high tensile strength. Core wires used to be zinc-coated (galvanized) steel or aluminum-coated (aluminized) steel. Such coatings are applied to further protect the steel from corrosion. By the way, the steel itself is CORROSIVE resistant material. The central steel core provides additional mechanical strength and hence, the sag of the acsr conductor is significantly less as compared to the aac and AAAC conductors.

1-ACSR conductors are the most preferred conductors that are used in transmission and distribution networks.

2- Its aluminum and steel strands provide flexibility, prevent breakage on tension and steel strands causes reduce sagging skin effects,

3- It has a minimum corona effect compare to aac and AAAC conductors

4-Weight per kilometer of ACSR conductors is higher compare to aac and AAAC conductors.

5-Number of aluminum and steel strands depends on the current rating of the conductor.

6- since it consists of steel wire that makes it is unique and gives it high tensile properties.

Cmparision of aluminium overhead conductor

1-In case of Tensile strength

ACSR > AAAC > AAC

2.in case of Corrosions

 ACSR > AAAC > AAC

3.in case of Span

ACSR > AAAC > AAC

4. in case of Sag

AAC > AAAC > ACSR

5. in case of Weight

ACSR > AAAC > AAC

6. in case of Conductivity

AAC > AAAC > ACSR

7.in case of Uses

· AAC = It is used in metro and coastal areas

· AAAC = It is used in power line crossing river and low strength support like in mountain area.

ACSR -It is most used conductor in transmission lines.

ACSR conductor types & ACSR conductor current rating & ACSR conductor Properties-

Scroll right to get ful data ACSR Conductor Size Chart-

·

ACSR CONDUCTOR CODE  NAMEAluminum AREA( MM2) NominalAluminum AREA( MM2)  Sectional TOTAL SECTIONAL AREAALUMINUM STRAND NUMBERALUMINUM
STRANDS Dia(mm)
STEEL STRANDS NO.STEEL STRAND Dia(mm)Over all Dia meter(mm)WEIGHT Total KG/KMWEIGHT  Al. KG/KMWEIGHT  Steel. KG/KMRESISTANCE AT 20 degC load (Ohms/Km)  (MAX)ULTIMATE  BREAKING LOAD (IN KILO NEUTON)CURRENT CARRYING CAPACITY (AMP) AT 65 Deg cCURRENT CARRYING CAPACITY (AMP) at 45 Deg  C
Mole1010.612.3761.5011.504.504329142.783.975890
Squirrel2020.9824.4862.1112.116.338558271.3947.6189130
Weasel3031.6136.8862.5912.597.7712887410.928911.12114170
Rabbit5052.8861.763.3513.3510.05214145690.552418.25157240
Racoon8078.8391.9764.0914.0912.273182151030.371226.91200300
Dog100105118.564.7271.5714.15394288.3105.70.279232.41239360
Wolf150158.1194.9302.5972.5918.137274382890.187167.34329470
Panther200212.1261.5303.0073.0021.00976588.5387.50.13989.67395560
Kundah400404.1425.2423.5071.9626.88128211191630.0731188.79566705
Zebra420428.9484.5543.1873.1828.62162111824390.06868130.32590860
Moose520528.5597543.5373.5331.77199814635350.05595159.6667980
Morculla560562.7591.7424.1372.3031.68178115532280.05231120.166881080
ACSR Conductor Size Chart

4 thoughts on “ACSR Conductor Size Chart”

Leave a Comment