AAAC (All Aluminum Alloy Conductor) referred to have higher strength but lower conductivity than pure aluminum. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; Having lower breaking loads than the latter, their application becomes particularly favourable when ice and win loading are low.
AAAC (All Aluminum Alloy Conductor) referred to have higher strength but lower conductivity than pure aluminum. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; Having lower breaking loads than the latter, their use becomes particularly favourable when ice and win loadings are low.
AAAC CABLE has been widely used in power transmission lines with various voltage levels, and also used in power lines across great rivers, heavy ice area, and other places special geographical characteristics. The conductor have excellent advantages of high strength, large current carrying capacity and good catenary property as well as wear-resistance, anti-crush and corrosion-proof with simple structure, convenient installation and maintenance, low cost for the line, large transmission capacity.
Conductor(AAAC) bear conductor meets or exceeds the following ASTM Specifications:
B-398 Aluminum Alloy 6201-T81 Wire for Electrical Purpose.
B-399 Concentrical-Lay-Stranded 6201-T81 Aluminum Alloy Conductors
3. Product Performance
(1). The electrical performance of AAAC is indicated in DCΩ/km(20oC). The resistivity of aluminum alloy wire for stranded wires is:
LHA1: not greater than 32.840nΩ. m
LHA2: not greater than 32.530nΩ. m
(2). The rated tensile strength of AAAC is denoted with the result of total cross-section areas of all aluminum alloy conductors multiplied by min. Tensile strength of corresponding size specified in the standard for aluminum alloy wire.
4. Material Standard
The high-strength aluminum alloy conductor used for AAAC conforms to the standard JB/T 8134-1997(equivalent to IEC 60104: 1987).
Standard 6201-T81 high strength aluminum conductors, conforming to ASTM Specification B-399, are concentric-lay- stranded, similar in construction and appearance to 1350 grade aluminum conductors. Standard 6201 alloy conductors are similar to other alloy conductors commercially known as Ardival, Aldrey or Almelec. They were developed to fill the need for an economical conductor for overhead applications requiring higher strength than that obtainable with 1350 grade aluminum conductors, but without a steel core. The DC resistance at 20°C of the 6201-T81 conductors and of the standard ACSRs of the same diameter are approximately the same. Conductors of the 6201-T81 alloys are harder and, therefore, have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.
Resistance is calculated using IEC standard increments of stranding and metal conductivity of 52.5% IACS, AC resistance at 60Hz
Current ratings are based on 75oC conductor temperature, 25oC ambient, 2ft/s wind, 96/watts/sq.ft sun, 0.5 coefficients of emissivity and absorption.
AAAC–All Aluminum Alloy Conductor technical parameter:
|ASTM B399||Akron Alton Ames Azusa Anaheim Amherst Alliance Butte Canton Cairo Darien Elgin Flint Greely
AWG or MCM 6 4 2 1/0 2/0 3/0 4/0 250 300 350 400 450 500 550 600
|BS 3242||Box Acacia Almond Cedar Fir Hazel Pine Willow Oak Mulberry Ash Elm Poplar Sycamore Upas Walnut Yew Totara Rubus Araucaria|
|BS EN50183||Box Acacia Almond Cedar Deodar Fir Hazel Pine Holly Willow Oak Mulberry Ash Elm Poplar Sycamore Upas Yew Totara Rubus Sorbus Araucaria Redwood|
|DIN 48201||mm²: 16 25 35 50 70 95 120 150 185 240 300 400 500 625 800 1000|
|IEC 61089||mm²: 10 16 25 40 63 100 125 160 200 250 315 400 450 500 560 630 710 800 900 1000 1120 1250|