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Description
Description
Standards
-
ProductABNT NBR 7271/88; ASTM B 231
It is an homogeneous conductor stranded with Aluminium 1350, Class AA for bare conductors used in overhead lines.
APPLICATIONS
AAC is usually as bare cable for primary and secondary distribution lines with short spans where high mechanical strength is not required. However due to be an Aluminium 1350 homogeneous conductor, the Ampacity is well optimized.
CONSTRUCTION
AAC is concentrically stranded conductor with one or more layers of Aluminium wire hard-drawn 1350-H19. The number of wires depends basically on the electrical requirements that will define the size.
Conditions for Ampacity calculation
Conductor temperature = 75 °C;
Room temperature = 25 °C;
Wind speed = 1 m/sec, sunny.
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Type of cable
Pansy
Conductor material
Aluminum
Type of conductor
Circular, stranded
Conductor flexibility
-
Conductor shape
RN
With smaller neutral conductor
-
Dimensional characteristics
Dimensional characteristics
Conductor cross-section (AWG/KCMIL)
1
Conductor cross-section
42.49 mm²
Number of aluminium wires
7
Diameter of aluminium wires
2.78 mm
Conductor diameter
8.34 mm
Approximate weight
117.1 kg/km
Average geometric radius
0.00302 m
Nominal outer diameter
8.34 mm
Number of cores
1
Number of round wires
7
Electrical characteristics
Electrical characteristics
Max. DC resistance of the conductor at 20°C
0.6763 Ohm/km
Max. electric resisrance AC 60Hz 75°C
0.829 Ohm/km
Inductive reactance
0.4376 Ohm/km
Capacitive reactance
0.2617 MOhm.km
Ampacity
220.0 A
Rated Voltage Uo/U (Um)
-
Mechanical characteristics
Mechanical characteristics
Hardness type
1350-H19
Rated breaking load
744.4 kgf
Usage characteristics
Usage characteristics
Length
2100 m
Reel net weight
245 kg
Packaging
Reel 80/45
Resources
Resources
Documentation
AAC Cable stranding
pdf — 49.3 kB
Basic properties of conductors materials
pdf — 31.1 kB
AAC cable stress and strain characteristics
pdf — 21.2 kB
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