ALUMINUM CONDUCTOR STEEL REINFORCED (ACSR) TUTORIAL LINKS PDF


Aluminum Conductor Steel Reinforced (or ACSR) cable is easily the most used type of cable in overhead power lines in the last century. It is a specific type of high-capacity, high-strength stranded cable used in overhead power lines where the outer strands are aluminum, chosen for its excellent conductivity, low weight, and low cost. Its center strand is of steel for the strength required to support the weight without stretching the aluminum due to its ductility. Thus the name steel reinforced. 

ACSR cables are available in several specific sizes, with multiple center steel wires and correspondingly larger quantities of aluminum conductors. For example, an ACSR cable with 54 aluminum conductors that requires a core of 7 steel conductors will be called 54/7 ACSR cable. It has a very high tensile strength and it is used to reduce skin effect which is predominant in AC supply applications.

Applications
Used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR offers optimal strength for line design. Variable steel core stranding enables desired strength to be achieved without sacrificing ampacity.

Construction
Aluminum alloy 1350-H-19 wires, concentrically stranded about a steel core. Core wire for ACSR is available with class A, B, or C galvanizing; ""aluminized"" aluminum coated (AZ); or aluminum-clad (AW) - please see our ACSR/AW spec for more information. Additional corrosion protection is available through the application of grease to the corer or infusion of the complete cable with grease. Read more...

Albert Lay Wire Rope: Wire rope in which the wires in the strands and the strands in the rope are laid in the same direction. Also known as Lang’s lay rope.

Alkaline Cleaning: For removing surface contamination, or, following on solvent degreasing, for producing a chemically clean surface suitable for sub sequent plating. The simplest method is to immerse the articles for a few minutes in the hot solution kept near boiling point, the agitation bringing fresh solu tion to the metal surface constantly. Read more...

There is no unique process by which all transmission and/or distribution lines are designed. It is clear, however, that all major cost components of line design depend upon the conductor electrical and mechanical parameters. 

ACSR - Aluminum Conductor Steel Reinforced, a standard of the electrical utility industry since the early 1900's, consists of a solid or stranded steel core surrounded by one or more layers of strands of 1350 aluminum. Historically, the amount of steel used to obtain higher strength soon increased to a substantial portion of the cross-section of the ACSR, but more recently, as conductors have become larger, the trend has been to less steel content. Read more...

The propagation of elastic waves along composite wire rope is considered. The rope is modeled as co-axial layers of cylindrically anisotropic material. Simple kinematical assumptions lead to a "rod theory" for the wire rope, consisting of three coupled one-dimensional wave equations. Solutions of these equations are found. Read more...

The purpose of this guide is to provide basic information about conductor damage curves and characteristic landmarks necessary for plotting on time-current curves (TCC), for the purpose of equipment overcurrent protection. It has a damage curve guide for ACSR. Read more...

This paper is to address the issues related to integrity of ACSR full tension splice connectors operated at high
temperatures. A protocol of integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector (SSC) assembly during service at high operating temperature was developed.1Based on the developed protocol the effective lifetime evaluation was demonstrated with ACSR Drake conductor SSC systems. Read more...




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