Bare Copper Stranded Conductor ( BCC )
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Product Description
Bare Copper Stranded Conductor ( BCC )
Overhead transmission Bare Copper Conductor
Bare Stranded Hard-Drawn Copper Conductors Application
Stranded Class 2 bare copper wire to BS EN 60228 / IEC 60228 cables are non insulated and non sheathed soft drawn copper to BS6360/81. Stranded bare soft or annealed copper conductors are recommended for use as neutrals, in circuit ground connections as well as machinery and equipment grounding systems. Soft copper may be used for transformer drop leads or other non-tension hook-up jumpers.
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.
Bare Stranded Hard-Drawn Copper Conductors Standards
- BS 6360 and BS EN 60228 / IEC 60228
- ASTM B-1 Hard-Drawn Copper Wire.
- ASTM B-2 Medium-Hard Copper Wire.
- ASTM B-3 Soft or Annealed Copper Wire.
- ASTM B-787 19 Wire Combination Unilay-Stranded Soft copper wire.
- ASTM B-8 Concentric-Lay-Stranded Hard, Medium-Hard or Soft Copper Conductor.
Bare Stranded Hard-Drawn Copper Conductors Construction
Bare Stranded Hard-Drawn Copper Conductors Characteristics
Stranded bare soft or annealed copper conductors are suitable for direct burial and do not suffer from the inherent corrosion problems that an aluminum conductor would. Copper is almost twice as conductive as aluminum. Copper is easier than aluminum to terminate and join at splices and joints.
Bare Copper Stranded Conductor ( BCC ) Specifications
Bare Copper Stranded Conductors (Hard Drawn)-ASTM B8 Standard
| Size AWG or MCM or KCMIl |
Actual cross-sectional area mm2 |
Number of single wire |
Diameter of single wire mm |
Nominal Overall Diameter mm |
Approximate weight kg/km |
Current Rating A |
| 10 | 5.3 | 7 | 0.98 | 3.27 | 48 | 50 |
| 8 | 8.3 | 7 | 1.23 | 3.69 | 76 | 95 |
| 6 | 13.4 | 7 | 1.56 | 4.68 | 121 | 130 |
| 4 | 21.1 | 7 | 1.96 | 5.88 | 192 | 170 |
| 3 | 26.6 | 7 | 2.2 | 6.6 | 242 | 200 |
| 2 | 33.5 | 7 | 2.47 | 7.41 | 305 | 230 |
| 1 | 42.5 | 7 | 2.78 | 8.34 | 384 | 265 |
| 1/0 | 53.5 | 7 | 3.12 | 9.35 | 485 | 310 |
| 1/0 | 54.4 | 19 | 1.91 | 9.47 | 485 | 310 |
| 2/0 | 67.7 | 7 | 3.51 | 10.52 | 611 | 355 |
| 2/0 | 67.7 | 19 | 2.13 | 10.62 | 611 | 355 |
| 3/0 | 85.3 | 7 | 3.94 | 11.79 | 771 | 410 |
| 3/0 | 85.2 | 19 | 2.39 | 11.94 | 771 | 410 |
| 4/0 | 107.4 | 7 | 4.42 | 13.26 | 972 | 480 |
| 4/0 | 108 | 19 | 2.69 | 13.41 | 972 | 480 |
| 250 | 127.2 | 19 | 2.92 | 14.58 | 1149 | 530 |
| 250 | 125.7 | 37 | 2.08 | 14.61 | 1149 | 530 |
| 300 | 152.8 | 19 | 3.2 | 15.95 | 1378 | 590 |
| 300 | 152.4 | 37 | 2.29 | 16 | 1378 | 590 |
| 350 | 177.6 | 19 | 3.45 | 17.25 | 1609 | 650 |
| 350 | 175.9 | 37 | 2.46 | 17.3 | 1609 | 650 |
| 400 | 203.2 | 19 | 3.69 | 18.42 | 1838 | — |
| 400 | 202.5 | 37 | 2.64 | 18.49 | 1838 | — |
| 500 | 252.9 | 37 | 2.95 | 20.68 | 2297 | 810 |
| 600 | 303.2 | 37 | 3.23 | 22.63 | 2757 | 910 |
| 381750 | 381 | 61 | 2.82 | 25.35 | 3446 | 1040 |
| 5061000 | 506 | 61 | 3.25 | 29.26 | 4595 | 1240 |
| 6311250 | 631.3 | 61 | 3.63 | 32.84 | 5742 | 1451 |
| 6221250 | 622 | 91 | 2.95 | 32.74 | 5742 | 1430 |
| 7591500 | 758.9 | 61 | 3.98 | 35.84 | 6891 | 1669 |
| 7551500 | 754.9 | 91 | 3.25 | 35.86 | 6891 | 1669 |
Bare Copper Stranded Conductors (Hard Drawn)-DIN 48201-1 Standard
| Nominal cross-sectional area mm2 |
No./Diameter of single wire mm |
Nominal overall diameter mm |
Approximate weight of cable kg/km |
Nominal Breaking Load Kn |
Maximum DC Resistance at 20℃ Ω/km |
| 10 | 7/1.35 | 4.05 | 90 | 4.292 | 1.8054 |
| 16 | 7/1.70 | 5.1 | 125 | 6.801 | 1.1385 |
| 25 | 7/2.14 | 6.42 | 160 | 10.545 | 0.7185 |
| 35 | 7/2.52 | 7.56 | 200 | 14.298 | 0.5181 |
| 50 | 7/3.02 | 9.06 | 250 | 20.531 | 0.3589 |
| 50 | 19/1.78 | 8.9 | 250 | 19.806 | 0.3825 |
| 70 | 19/2.14 | 10.7 | 310 | 28.626 | 0.2646 |
| 95 | 19/2.52 | 12.6 | 380 | 38.818 | 0.1918 |
| 120 | 19/2.85 | 14.25 | 440 | 49.657 | 0.1492 |
| 150 | 37/2.25 | 15.75 | 510 | 61.632 | 0.1238 |
| 185 | 37/2.52 | 17.64 | 585 | 75.587 | 0.0981 |
| 240 | 61/2.25 | 20.25 | 700 | 101.616 | 0.0752 |
| 300 | 61/2.52 | 22.68 | 800 | 124.627 | 0.06 |
| 400 | 61/2.85 | 25.65 | 960 | 159.407 | 0.0469 |
| 500 | 61/3.20 | 28.8 | 1110 | 200.959 | 0.037 |
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