ACSR Robin

Description

Description

Standards

  • Product
    ABNT NBR 7270/88

The use of Aluminium as a material for electrical conductors has greatly application mainly due to its good electrical properties. However, Aluminium conductors for most of transmission and distribution lines requires an additional mechanical support. Commonly it is used galvanized steel wires for cores of ACSR.

 

APPLICATIONS

Widely used as bare cable for overhead transmission lines and also as primary and secondary bare cable for distribution lines.

 

CONSTRUCTION

ACSR is concentrically stranded conductor with one or more layers of Aluminium wire hard-drawn 1350-H19 on the galvanized steel wire core. The core may be single wire or stranded depending on the size. Steel wire is available in Class A or B galvanization as corrosion protection.

 

ACSR is according to electrical and mechanical strength requirements of transmission or distribution lines, can provides an appropriate design combining the quantity of Aluminium and galvanized steel wires.

 

Conditions for Ampacity calculation

Conductor temperature = 75 °C;

Room temperature = 25 °C;

Wind speed = 1 m/sec, sunny.</P>

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Type of cable
Robin
Type of conductor
Circular, stranded
Conductor material
aluminum / Steel Core
Conductor flexibility
Class A
Conductor shape
Circular non compacted

Dimensional characteristics

Dimensional characteristics

Conductor cross-section (AWG/KCMIL)
1
Aluminium cross-section
42.41 mm²
Number of aluminium wires
6
Diameter of aluminium wires
3 mm
Number of steel wires
1
Diameter of steel wires
3 mm
Conductor diameter
9.0 mm
Average geometric radius
0.00346 m
Aluminium content
116.4 kg/km
Steel content
55 kg/km
Approximate weight
171.4 kg/km
Conductor cross-section
62.44 mm²
Maximum outer diameter
- mm
Nominal outer diameter
9.0 mm
Number of cores
1
Number of round wires
-

Electrical characteristics

Electrical characteristics

Max. DC resistance of the conductor at 20°C
0.6764 Ohm/km
Max. electric resisrance AC 60Hz 75°C
0.887 Ohm/km
Inductive reactance
0.4274 Ohm/km
Capacitive reactance
0.2579 MOhm.km
Ampacity
210.0 A
Rated Voltage Uo/U (Um)
-

Mechanical characteristics

Mechanical characteristics

Rated breaking load (Class A)
1616 kgf
Rated breaking load (Class B)
1568 kgf
Hardness type
1350-H19

Usage characteristics

Usage characteristics

Length
1750 m
Reel net weight
300 kg
Packaging
Reel 80/45
Fire resistant
-
Flame retardant
-

Resources

Resources

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