ACFR/ AAAC/AAC /ACSR /ACAR cable Aluminum Overhead conductor sizes

Item

Unit

Technical data

Quality of exterior and surface

/

Any visible flaws should not be allowed on the surface of CFCC, i.e.  apparent indentation, scratch etc. and the product shall be in compliance with the requirements of good products, any other flaws should not be allowed.

Structure

Composite core

Strand/Diam.

7/2.6

current capacity of the cable

1317A

Nominal cross-section area

Total

mm²

266.33

Aluminum

mm²

229.16

Composite core

mm²

37.17

outer diameter

mm

21.2

Nominal mass per unit length

kg/km

691.2

DC resistance at 20℃

Ω/km

≤0.1218

Total rated tensile resistance

kN

≥104.98

Elastic modulus

Below thermal kneepoint

GPa

66.2

Above thermal kneepoint

GPa

135

Linear expansion coefficient

Below knee point temperature

1/℃

16.7*10^-6

Above knee point temperature

1/℃

1.0*10^-6

Lay ratio

 Inner layer of AL wire

/

10~14

Other layer of AL wire

/

10~16

Stranded conductor of multilayer

/

The layer ratio of any layers should less than the  layer ratio of inner layer which is next to each other.

Direction of lay

Outer layer

/

 Towards the right

Other layer

/

The direction of adjacent layers shall be opposite

 Item

Unit

Technical data of requirement

The quality of exterior and surface

The surface of composite core should be round, clean , smooth; the color and luster of it shall be consistent and any flaws shall not be allowed in compliance with the requirement of good products.( i.e. unevenness, crazing, crack, hole, scratch etc. )  

Diameter

mm

7.20

Allowable variation of diameter

mm

±1%

 Diameter of single core

mm

2.6

Mininum tensile strength

Mpa

2600

Elasticity modulus

GPa

135

Linear expansion coefficient

1/℃

1.0*10^-6

Density

g/cm³

≤1.6

Bending resistance (55d,1 circle)

/

No crack, no fracture

Torsion (170d,360°)

/

The surface of composite core is no crack; Tensile strength of it is higher than 2600MPa

Glass- transition temperature Tg(DMA method)

℃

≥200

Tensile strength under high temperature(160℃*401h)

MPa

Strength is not less than 95%RTS

Ultraviolet aging performance(1008h)

/

The surface of composite core should not be sticky, and not have fiber baring, crack, crazing.

Salt spray test(240h)

/

Corrosion and defects should not exist on the surface