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OVERHEAD CONDUCTOR

ALL ALUMINUM CONDUCTOR (AAC)

AAC conductor is also known as aluminium stranded conductor. These conductors consist of several layers of aluminium wires stranded of hard drawn 1350 Aluminium concentrically. AAC are manufactured from electrolytically refined aluminium with a minimum purity of 99.7%. AAC conductors are used in low, medium and high voltage overhead lines.

CONSTRUCTION

Aluminium 1350–H19 Wires, concentrically stranded over a central wire of Aluminium 1350-H19

APPLICATION

All Aluminium Conductor (AAC) have high ratio of electrical conductivity to weight, high flexibility, high Current Carrying Capacity and low UTS. Also, the aluminium has low levels of brittleness.

ADVANTAGES

All Aluminium Conductors (AAC) are used in low voltage overhead lines in urban areas and in high voltage substation conducting. They are also used in very cold areas due to low brittleness of aluminium in the MV lines.

SR. NO. DESCRIPTION RANGE
1
Conductor Area
10.6 mm2 to 1095 mm2
2
Conductor construction
7Al to 91 Al
3
Conductivity of Al
61.0% IACS

PHYSICAL PROPERTIES

At a temperature of 20°C (68°F), the density of hard-drawn aluminium has been taken as 2.703 g/cm (168.74b/cf).

SR. NO. DESCRIPTION RANGE RANGE RANGE RANGE
SR. NO.
CONDUCTOR CONSTRUCTION
MODULUS OF ELASTICITY*
LINEAR COEFFCIENT*
MPa
KSI
/ºC
/ºF
1
7 Strands
60000
8702
23 x 10 -6
12.8 X 10 -6
2
19 Strands
57000
8267
23 x 10 -6
12.8 X 10 -6
3
37 Strands
57000
8267
23 x 10 -6
12.8 X 10 -6
4
61 Strands
55000
7977
23 x 10 -6
12.8 X 10 -6
SR. NO. DESCRIPTION RANGE
1
Permissible Temp in continuous operation
75°C
167°F
2
Temp in a short circuit (duration up to 5s)
200°C
392°F

Note: The Catalogue conductor Parameter are informative and can be customized as per Project Requirements

APPLICABLE STANDARD

All Aluminium Conductor (AAC) can be supplied to meet various National & International Standards as follows

IS 398 PART 1 : 1994  |  BS 215 PART 1 :1970  |   IEC 61089 : 1991  |   BS EN 50182 : 2001  | ASTM B 231  | AS 1531 : 1989  |   GOST 839 : 1980  |   DIN 48201 Part 5

CATALOGUES