1.2.3.3.7

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  • 7/30/2019 1.2.3.3.7

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    Conductor

    Aluminium Steel

    Nominal

    Overall

    Diameter

    Approximate

    Mass

    Standard

    Pack

    Size

    Code Name Item

    Number

    AERIAL

    ACSR / 1350

    APPLICATION

    Bare overhead reticulation for medium spans, normally at low

    and medium voltages

    ACSR = Aluminium Conductor Steel Reinforced.

    STANDARD BS 215 Part 2:1970

    CONDUCTOR Aluminium Alloy 1350 +

    Galvanised Steel wire

    STRAND CONSTRUCTION As Below

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    ELECTRICAL CHARACTERISTICS

    Equivalent ElectricalAreas

    Current Ratings @ 75C(a)

    CONDUCTOR

    CODE NAME

    Aluminium

    mm

    Copper

    mm

    MaximumDC

    Resistance

    @20C

    /km

    MaximumAC

    Resistance

    @75C

    /km

    Winter

    Night

    A

    Summer

    Noon

    A

    InductiveReactance

    to 0.4m

    /km

    SinglePhase

    Voltage Drop

    @ 0.4m

    spacing

    mV/A.m

    Jaguar 210.6 128.4 0.137 0.167 776 640 0.251 0.60

    Panther 212.1 129.3 0.136 0.166 798 657 0.248 0.60

    Lion 238.3 145.3 0.121 0.148 860 707 0.244 0.57Bear 264.4 161.2 0.110 0.134 918 753 0.240 0.55

    Goat 324.3 197.7 0.089 0.109 1048 857 0.234 0.52

    Antelope 374.1 228.1 0.077 0.095 1114 911 0.232 0.50

    Sheep 375.1 228.7 0.077 0.095 1146 936 0.230 0.50

    Bison 381.7 232.7 0.076 0.094 1129 923 0.231 0.50

    Zebra 428.9 261.5 0.067 0.083 1214 990 0.227 0.49

    Deer 429.6 262.0 0.067 0.083 1252 1019 0.225 0.48

    (a) Wind Speed 1m/sec, emissivity 0.5, absorptance 0.5. Air temperature 10C for winter night, 25C for summer noon. Intensity of

    solar radiation 1000 W/m for summer noon. Angle of wind to conductor axis is 60o. For current ratings at different conductor

    operating temperatures, refer to the graph on next two pages.

    Calculation based on IEEE Std 738 1993.

    PHYSICAL PROPERTIESCONDUCTOR

    CODE NAME Nominal

    Overall

    Di t

    Total Cross

    Sectional Area

    Calculated

    Minimum

    B ki

    Approx.

    Mass

    Final

    Modulus of

    El ti it

    Coefficient of

    Linear

    E i

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    Current rating versus conductor temperature (Summer/noon)

    300

    400

    500

    600

    700

    800

    900

    1000

    1100

    1200

    1300

    1400

    45 50 55 60 65 70 75 80 85 90 95 100 105 110

    Conductor operating temperature (oC)

    Currentra

    ting(A)

    Jaguar

    Panther

    Lion

    Bear

    Goat

    Antelope

    Bison

    Sheep

    Zebra

    Deer

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    Current rating versus conductor temperature (Winter/night)

    550

    650

    750

    850

    950

    1050

    1150

    1250

    1350

    1450

    1550

    1650

    45 50 55 60 65 70 75 80 85 90 95 100 105 110

    Conductor operating temperature (oC)

    Curr

    entrating(A)

    Jaguar

    Panther

    Lion

    Bear

    Goat

    Antelope

    BisonSheep

    Zebra

    Deer