Skip to main content

ACSR: ALUMINUM CONDUCTOR STEEL REINFORCED

What is an ACSR? 
Aluminum conductor steel reinforced (or ACSR) cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines. The outer strands are aluminum, chosen for its excellent conductivity, low weight and low cost. The center strand is of steel for the strength required to support the weight without stretching the aluminum due to its ductility. This gives the cable an overall high tensile strength..continue..



Overhead transmission line conductors are usually ACSR or AAC to B.S. 215, although the aluminium alloy conduc­tors to B.S. 3242 are also being used. Aluminium wires used in the AAC and ACSR are hard drawn and of 99.5% purity aluminium with a specific resist­ance of 2.8264 microhm cm. This gives a conductivity of 61 % I.A.C.S. ..continue..


Datasheet of ACSR and all the types of such construction. This can be use as reference for conductor different size and resistance ..continue..


ACSR is a concentric-lay-stranded conductor consisting of a single core wire or a stranded steel central core with one or more layers of 1350 H19 stranded aluminum wires. Steel core wires are protected from corrosion by galvanizing, aluminum-clad alloy or zinc – 5% aluminum mischmetal alloy coating. Standard, High, Extra and Ultra High strength steel are also available. All ACSR cables are also available in a non-specular finish. ..continue..


The rated continuous current carrying capacity of the conductor at a referenced ambient temperature, allowable temperature rise, geometry and installation.  For bare overhead conductors an ambient air temperature of 40°C is typical.  For underground insulated power cables an ambient earth temperature of 20°C is typical.  Temperature correction factors are then given to adjust the base ampacity for other ambient temperature levels. If a cable is loaded continuously above rated ampacity the insulation temperature design limits will be exceeded.  This will lead to loss of insulation life, not instantaneous failure. If a bare overhead conductor is loaded continuously above rated ampacity the mechanical strength of the conductor is reduced.  This will lead to a loss of mechanical life, not instantaneous failure. ..continue..


ACSR conductors are also known for its aluminum to steel ratio (i.e. 18/1, 26/7, 45/7). This also describes the stranding of every ACSR cable. ACSRs are also known to have code words which individual has different intrisic characteristics and they are usually taken from the names of birds others are from animals.

The table below shows a simple listing of different types of ACSR conductors with its respective resistance and reactance. This parameters affect the value of impedance of the wires thus also affects the power flow when it is put into service. Knowing these is very important in System's Loss Analysis especially in analyzing voltage drop in transmission lines...continue..

Comments

  1. Hi there. Nice blog. You have shared useful information. Keep up the good work! This blog is really interesting and gives good details. aluminium cable manufacturers, aluminium cable .

    ReplyDelete

Post a Comment

Popular posts from this blog

POWER SYSTEMS LOSS.COM: LOSSES IN ELECTRICAL SYSTEM

What is powersystemsloss all about?    System's loss reduction is now one of the most growing trends in every electric distribution utility. Primarily triggered by economics and regulation concerns, Transmission and Distribution companies now sets more focus in reducing losses and become as an efficient utility as possible in delivering power. Information found in this site will be very useful not only to electrical practitioners but it is also our goal to help students better understand the actual world. Thank you and lets all enjoy learning! continue..   Back to basic    n case you don't know, the power we get from our household electrical outlet didn't just appear in the thin air. It may appear that it is coming out from our walls but we all know that looks can be deceiving. Before reaching our respective homes, electric current passes through miles and miles of c...

FRUITS AS BATTERY AND SOURCE OF ELECTRICITY

Electric Fruits Project   The purpose of this project was to find out which fruit would generate enough electricity to light a light bulb and to discover which fruit would light the bulb the longest. To conduct my experiments I used a Multimeter, copper and zinc wires & electrodes, alligator clips with leads, various light bulbs and five types of fruits. continue.. Why Do Citrus Fruits Produce Electricity?   In order to generate electricity, there must be a power source and a complete circuit. When using a citrus fruit to create electricity, these rules still apply. In a simple experiment using a citrus fruit, the components of the circuit include: a lemon or other fruit, wire, two different metal elements and a small light bulb. The lemon in this circuit serves as the battery and power source. continue.. Fruit Power Project   Purpose To demonstrate how an electrical current can be generated using citrus fruits (such as lemons or li...

ELECTROCUTION: ELECTRIC ACCIDENT THAT CAN BE AVOIDIED

Electrocution   Electrocution is a type of electric shock that, as determined by a stopped heart, can end life. Electrocution is frequently used to refer to any electric shock received but is technically incorrect; the choice of definition varies from dictionary to dictionary. However, in the vernacular, the term electrocution is used to mean: death, murder or a sudden accident caused by an electric shock. deliberate execution by means of an electric shock, such as an electric chair; the word "electrocution" is a portmanteau for "electrical execution".. continue.. Electric Shock   Electric Shock of a (human) body with any source of electricity that causes a sufficient current through the skin, muscles or hair. Typically, the expression is used to denote an unwanted exposure to electricity, hence the effects are considered undesirable. The minimum current a human can feel depends on the current type (AC or DC) and frequency. A person can feel at least 1 mA (rm...