Copperweld® 4THOUGHT™ is the new 4/0 equivalent 19-wire dead soft annealed (DSA) copper-clad steel strand that brings numerous advantages to the power utility industry for electrical grounding. Both mechanically rugged and flexible, Copperweld® 4THOUGHT™ is the smarter alternative to solid copper conductors for grounding applications in generation plants, substations, switchyards and industrial installations. As a grounding conductor, DSA Copperweld® 4THOUGHT™ strand is specifically designed to replace 4/0 copper cable at an initial cost savings, while continuing to provide long-term value thanks to its excellent resistance to fatigue and breakage.
4THOUGHT™ consists of several smaller CCS wires stranded together, which renders it very easy to bend and shape, and allows for simple installation. It has the same corrosion resistance to solid CU, has suitable ampacity/fusing current, utilizes the same size connectors and has simular flexibility to CU. In addition, 4THOUGHT™ has 2x fatigue capability and saves money over copper 4/0 cables.
Number of single wires in strand: 19
Diameter of single wire: .1055 inches (2.68 mm)
Overall diameter: .5275 inch (13.40 mm)
Area: 211.47 kcmil (107.16 squared mm)
Weight: 601.25 lbs/1000ft (894.78 kg/km)
Wire resistance: 0.1268 Q/1000 ft (0.4161 ohms/km)
Minimum break loads: 5979 lbf (2712 kgf)
Minimum elongation: 15%
Fusing current at 30 cycles (.5 sec): 28.60 kA
Fusing current at 3 cycles (.05 sec): 90.47 kA