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740.8 kcmil
Description
Description
Standards
-
ProductASTM B 398; ASTM B 399
Application
AAAC CENTELSA by Nexans cables are used in overhead power transmission and distribution networks. They are also used as a supporting neutral for multiplex type overhead distribution cables.
Construction
Concentric conductor formed by 6201 T81 aluminum alloy wires.
Applicable Standards
- ASTM B398, NTC 2729
- ASTM B399, NTC 2730
Certificate
RETIE N°05424
Ampacity Conditions
- Current capacity at ambient temperature 25°C, conductor temperature 75°C, solar emission 1kW/m², absorption and emissivity coefficients 0.5, wind speed 610 mm/sec, at sea level and at 60 Hz.
- Short circuit current for one (1.0) second, at initial temperature of 75°C and final temperature of 340°C.
- For all constructions or wiring ME: Modulus of elasticity 6300 kgf/mm², CDL: linear expansion coefficient 23.0 x 10 exp(-6) /°C.
NOTE:
- The data reported here are nominal and are subject to tolerances according to standards and normal manufacturing practices.
- Other configurations not specified in this catalog may be available under special request and minimum manufacturing quantitie
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Conductor flexibility
Class AA
Conductor material
Aluminium Alloy
Conductor shape
Circular stranded (RM)
Type of cable
Flint
Type of conductor
Stranded
Dimensional characteristics
Dimensional characteristics
Outer Diameter
25.16 mm
Number of aluminium wires
37
Diameter of aluminium wires
3.59 mm
Conductor cross-section
740.8 kcmil
Aluminium cross-section
375 mm²
Approximate weight
1289.1 kg/km
Electrical characteristics
Electrical characteristics
Max. DC resistance of the conductor at 20°C
0.091 Ohm/km
Ampacity
794.0 A
Short Circuit Current 1 s Max
40 kA
Mechanical characteristics
Mechanical characteristics
Minimum breaking load
11047 kgf
Hardness type
T81
Usage characteristics
Usage characteristics
Maximum operating temperature
75 °C
Resources
Resources
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