1. Applications

 

      Conductor(AAC and ACSR) have been widely used in power transmission lines with various voltage levels,because they have such good characteristics as simple structure,convenient installation and maintenance,low cost large transmission capacity.And they are also suitable for laying across rivers valleys and the places where special geographical features exist.

 

      Used as bare overhead transmission cable. ACSR CONDUTORS are used extensively for overhead ground wires, river crossings etc. These ACSR CONDUTORS are available with us in various types for meeting the exact requirements of the clients.  Earthwire of high voltage, power line, long span transmission line.

 

 

* Specific type of high-capacity, high-strength stranded cable usded in overhead power lines.

 

 

* The outer strands are Aluminium, which made it with excellent conductivity, low weight and low cost.

 

 

*The Center strand is of the strength required to support the weight without stretching the aluminium due to its.

 

 

* Alailable in serveral specific sizes, with multiple center steel wire and correspondingly larger quantities of aluminium conductors.

 

2. Service Performance

 

   (1).The permissible long-time operating temperature for aerial conductor is 70^oC.

   (2).Under the circumstance that rare climate is occuring and ice coverage rate low in heavy ice area,the biggest stress of cable at the lowest point of the sag should not exceed 60% of the short-time destructive power.

   (3).When connecting conductors,the conductor beside the connecting tube cant be prominent.Otherwise,the force on the operating conductors will be unbalanced.After connectors are install,the connecting tube      should be painted by moisture-proof varnish in order to protect it from corrosion.

   (4).Under installaion,the arc downing stress of all the conductors should be the same.With in the permissible distance of crossing buildings or dropping to the ground,the stress can be 10-15% higher than regular stress.

 

3.Product Performance

 

   (1).The electrical performance of AAC and ACSR conductor is indicated in DCΩ/km(20^oC).The resistivity of the hard aluminum wire for stranded wires is not greater than 28.264 nΩ. m of international standard value.

   (2).The rated tensile strength of AAC is denoted with the result of total cross-section of all aluminum conductors multiplied by min.tensile of corresponding size specified in the standard for aluminum wire.

   (3).The rated tensile strengh of ACSR conductor is denoted with sum of all aluminum conductorstensile strength and steels tensile strength.

       a.The tensile strength of all aluminum conductors is denoted with the result of all cross-sections of aluminum conductors multiplied by min.tensile strength of corresponding size specified in the standard   for aluminum wire.

      b.The tensile strength of all steel wire is denoted with the result of all cross-sections of steel wires multiplied by the stress at 1% elongation of corresponding size specified in the standard for steel wire.

 

4.Material Standard

 

    (1).The hard aluminum conductor used for AAC and ACSR conductor conforms to the standard GB/T 17048-1997(equivalent to IEC 60889:1987).

    (2).The zinc coated steel wire used for ACSR conductor conforms to IEC 60888:1987.

    (3).Production can be arranged according to customers requirements for material standard,etc.

 

5.Chinese Standard

 

New Type	Original Type	Name	Range of Sectional Area
JL	LJ	All Aluminum Conductor	10-1500
JL/G1A JL/G1B JL/G2A JL/G2B JL/G3A	LGJ	Aluminum Conductor Steel Reinforced	16-1250
JL/G1AF JL/G2AF JL/G3AF	LGJF	Corrosion-Resistant Aluminum Conductor Steel Reinforced	16-1250
JLHA1  JLHA2	LHAJ	All Aluminum Alloy Conductor	16-1250
JLHA1/G1A JLHA1/G1B JLHA1/G3A JLHA2/G1A JLHA2/G1B JLHA1/G3A	LHAGJ	Aluminum Alloy Conductor Steel Reinforced	16-1120
JL/LHA1  JL/LHA2	LLHAGJ	Aluminum Conductor Aluminum Alloy Reinforced	16-1400
JL/LB1A	LLBGJ	Aluminum Conductor Steel Coated Aluminum Reinforced	16-1250
JLHA2/LB1A JLHA1/LB1A	LHALBGJ	Aluminum Alloy Conductor Aluminum Coated Steel Reinforced	16-1250
JG1A JG1B JG2A JG3A	GJ	All Steel Stranded Conductor	6-63(27.1mm2-427mm2)
JLB1A JLB1B  JLB2	LBGJ	Aluminum Coated Steel Conductor	4-200(12mm2-600mm2)