• Bare Copper Wire (Ground)

    Product Details

    Nassau National Cable’s selection of Bare Copper Wire meets ASTM specifications and is available in four different classifications; Class AA, Class A, Class B, and Class C.

    Class AA Bare Copper Wire is made for use as overhead transmission line. This classification of copper is one of the most rigid types of copper wire. Rigidity is a useful trait when installing overhead lines because more flexible cables tend to sag over time. Class AA Bare Copper Wire shows minimal sagging and offers extremely powerful conductivity.

    Bare Copper Wire Classes A thru C are typically used with a weatherproof jacket or insulation and they are rated according to flexibility. These cables are more commonly used in direct burial, conduit, cable tray, and approved raceway applications. Class A Bare Copper Wire offers increased flexibility compared to Class AA, but falls on the more rigid side of the spectrum of Bare Copper Wire. Class A Bare Copper Wire is used when flexibility is not a major factor, or when a more rigid cable is needed.

    Class B and C Bare Copper Wire is preferred when flexibility is required. These cables undergo a process in which they are heated and slowly cooled. The process releases internal stress within the copper, enhancing its flexibility. The end product is a malleable copper cable that offers the same powerful conductive properties as standard cable.

    Applications:
    Solid and stranded (classes AA and A) bare copper are suitable for overhead transmission and distribution applications. Stranded conductor of greater flexibility (classes B and C) are suitable for uninsulated hook up, jumpers, and grounds in electrical construction. Soft Drawn copper is unilay construction.

    Specifications:
    Bare copper wire and cable meets or exceeds the following ASTM specifications:

    • B-1 Hard-Drawn Copper Wire.
    • B-2 Medium-Hard Copper Wire.
    • B-3 Soft or Annealed Copper Wire.
    • B-787 19 Wire Combination Unilay-Stranded Soft copper wire.
    • B-8 Concentric-Lay-Stranded Hard, Medium-Hard or Soft Copper Conductor.

    Construction:
    Bare copper, solid or stranded. Available in tempers hard, medium-hard, or soft. Stranded conductors are concentrically stranded in hard and medium-hard tempers and are Combination Unilay stranded in the soft-drawn temper.

    Size
    (AWG or
    KCMIL)
    Size (AWG)
    Stranding
    Diameter
    Weight Per
    1000 ft. (lbs.)
    Allowable
    Ampacity 90C (Amps) Strength
    (lbs.)
    Circular Mil 
    Area (cmils)
    Hard-
    Drawn Rated Strength (lbs.)
    Medium-
    Drawn Rated Strength (lbs.)
    (Al/Stl) Class Single Phase Conductor (Mils) Complete Cable (O.D.) (Mils)
    BCW 14 Gauge 14 -- -- -- 64.1 12.4 -- 4110 213.5 --
    BCW 13 Gauge 13 -- -- -- 72 15.7 -- 5180 268.0 --
    BCW 12 Gauge 12 -- -- -- 80.8 19.8 -- 6530 336.9 --
    BCW 11 Gauge 11 -- -- -- 90.7 24.9 -- 8230 422.9 --
    BCW 10 Gauge 10 -- -- -- 101.9 31.4 -- 10380 529.2 --
    BCW 9 Gauge 9 -- -- -- 114.4 39.6 -- 13090 661.2 --
    BCW 8 Gauge 8 -- -- -- 128.5 50 95 16510 826.0 --
    BCW 7 Gauge 7 -- -- -- 144.3 63 105 20820 1030.0 --
    BCW 6 Gauge 6 -- -- -- 162 79.4 125 26240 1280.0 --
    BCW 5 Gauge 5 -- -- -- 181.9 100.2 145 33090 1591.0 --
    BCW 4 Gauge 4 -- -- -- 204.3 126.3 170 41740 1970.0 --
    BCW 3 Gauge 3 -- -- -- 229.4 159.3 195 52620 2439.0 --
    BCW 2 Gauge 2 -- -- -- 257.6 200.9 225 66360 3003.0 --
    BCW 1 Gauge 1 -- -- -- 289.3 253.3 260 83690 3688.0 --
    BCW 8 Gauge 8 7 B 49 146 51 95 -- 777 610
    BCW 6 Gauge 6 7 B 61 184 81 130 -- 1228 959
    BCW 4 Gauge 4 7 A, B 77 232 128.9 170 -- 1938 1505
    BCW 3 Gauge 3 7 A, B 87 260 162.5 200 -- 2433 1885
    BCW 2 Gauge 2 7 A, B 97 292 204.9 230 -- 3050 2360
    BCW 1 Gauge 1 7 A, B 109 328 258.4 265 -- 3801 2955
    BCW 1/0 Gauge 1/0 7 A, AA 123 368 326.1 310 -- 4752 3705
    BCW 2/0 Gauge 2/0 7 A, AA 138 414 410.9 355 -- 5926 4640
    BCW 2/0 Gauge 2/0 19 B 84 418 410.9 355 -- 6690 4765
    BCW 3/0 Gauge 3/0 7 A, AA 155 464 518.1 410 -- 7366 5812
    BCW 4/0 Gauge 4/0 7 A, AA 174 522 653.3 480 -- 9154 7278
    BCW 4/0 Gauge 4/0 19 B 106 528 653.3 480 -- 9617 7479
    BCW 250 MCM 250 19 A 115 574 771.9 530 -- 11360 8836
    BCW 250 MCM 250 37 B 82 575 771.9 530 -- 11600 3952
    BCW 300 MCM 300 19 A 126 628 926.2 590 -- 13510 10530
    BCW 350 MCM 350 19 A 136 679 1080.6 650 -- 15590 12200
    BCW 500 MCM 500 37 A, B 116 814 1543.8 810 -- 22510 17550
    BCW 600 MCM 600 37 A, AA 127 891 1852.5 910 -- 27020 21060
    BCW 750 MCM 750 61 A, B 111 998 2315.6 1040 -- 34090 26510
    BCW 1000 MCM 1000 61 A, B 128 1152 3087.5 1240 -- 45030 35100

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