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An SY control cable is a flexible instrumentation electrical cable designed for measuring, control or regulation in the field of process automation. [1] It is a flexible multicore cable, with (class 5) [which?] copper conductors and a galvanised steel wire braid (GSWB) for mechanical protection.
RG-59 coaxial cable is commonly packed with consumer equipment, such as VCRs or digital cable/satellite receivers. Manufacturers tend to include only RG-59 cables because it costs less than RG-6 does. However, given the short lengths provided (usually 4–6 ft or 1.2–1.8 m), this is generally sufficient for its typical use.
Also, comparatively, more copper wire can fit in a given conduit than conductors with lower conductivities. This greater wire fill is a special advantage when a system is rewired or expanded. [17] Copper building wire is compatible with brass and quality plated screws. The wire provides connections that will not corrode or creep.
A braided wire consists of a number of small strands of wire braided together. [10] Braided wires do not break easily when flexed. Braided wires are often suitable as an electromagnetic shield in noise-reduction cables. The outer conductor of this miniature coaxial cable (RG 58 type) is made of braided wire.
Twin lead cable is a two-conductor flat cable used as a balanced transmission line to carry radio frequency (RF) signals. It is constructed of two, stranded copper wires, or solid copper-clad steel wires. The wires are held a fixed distance apart by a plastic ribbon that is a good insulator at radio frequencies (usually polyethylene).
Some examples of skin depth in copper wire at different frequencies are: At 60 Hz, the skin depth of a copper wire is about 7.6 mm (0.30 inches). At 60,000 Hz (60 kHz), the skin depth of copper wire is about 0.25 mm (0.0098 inches). At 6,000,000 Hz (6 MHz), [5] the skin depth of copper wire is about 25 μm (0.00098 inches).