High Temperature Thermal Resistant Alloy Conductor
These are high ampacity conductors with inner core composed of Galvanized steel or Aluminium clad Steel & outer layer composed of thermal resistant aluminium alloy with round or trapezoidal shaped.
CONSTRUCTION
Aluminium-Zirconium wires (Type-AT1), concentrically stranded over a steel core
6/1
6/7
12/7
18/1
24/7
26/7
28/7
30/7
30/19
42/7
45/7
54/7
54/19
ADVANTAGES
These can operate up to 150°C with specified strength loss,
Can carry 50 % to 60 % more current as that of ACSR of the same size.
For uprating lines, no modifications or reinforcement is required to the existing towers
SR. NO.
DESCRIPTION
RANGE
1
Conductor Area
58 mm2 to 1520 mm2
2
Conductor construction
6TAL/ 1 Steel to 84TAL/ 1 9 Steel
3
Conductivity of Al Alloy (TAL)
60.0 % 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 (168.74 wire
7.8 g/cm3 (485.69 lb/cf). lb/cf) and for steel
SR. NO.
DESCRIPTION
RANGE
1
Permissible Temp in continuous operation
150°C
302°F
2
Temp in a short circuit (duration up to 5s)
250°C
482°F
Note: The Catalogue conductor Parameter are informative and can be customized as per Project Requirements
APPLICABLE STANDARD
Values based on following Specifications:
Thermal-resistant aluminium alloy wires (Type-AT1) for overhead line conductor as per IEC 62641 | Round wire concentric lay overhead electrical stranded conductors IEC 61089 | Zinc-coated steel wires for stranded conductors IEC 888, ASTM B957 & more | Aluminium Clad Steel Wires, IEC 61232, ASTM B415, EN 50540 & More