19*0.57mm Ni60Cr15 Nickel Chromium Alloy Stranded Wire Multi-Strand Wire

Detailed Description of Stranded Wire:

Stranded wire is extremely versatile and employed in a number of industrial, commercial, and consumer applications. While some applications require solid conductor wires and cables, stranded wire is often preferred for its greater degree of flexibility.

Stranded cables and wires are used heavily in industries which require a great deal of lifting, support, and tension such as aerospace, automotive, communications, chemical, electronics, defense, security, and medical industries. To suit the needs of these industries and more, stranded rope is increasingly specialized. If uncertain, wire rope suppliers should be consulted in order to select the proper wire and avoid potentially costly and dangerous mechanical failures.

Stranded wires are identified by listing both the number of strands and the amount of wires per strand respectively as well as the lay and pitch of the rope. Identification codes can also extend to specifics such as core type, workload limit, and more, listed in abbreviated form.

The connections, fasteners, fittings, and other hardware attached to the stranded wire are also important as they offer differing degrees of wire versatility in terms of fray prevention and connectivity.

Stranded wire is composed of a number of small wires bundled or wrapped together to form a larger conductor. Stranded wire is more flexible than solid wire of the same total cross-sectional area. Stranded wire is used when higher resistance to metal fatigue is required. Such situations include connections between circuit boards in multi-printed-circuit-board devices, where the rigidity of solid wire would produce too much stress as a result of movement during assembly or servicing; A.C. line cords for appliances; musical instrument cables; computer mouse cables; welding electrode cables; control cables connecting moving machine parts; mining machine cables; trailing machine cables; and numerous others.

At high frequencies, current travels near the surface of the wire because of the skin effect, resulting in increased power loss in the wire. Stranded wire might seem to reduce this effect, since the total surface area of the strands is greater than the surface area of the equivalent solid wire, but ordinary stranded wire does not reduce the skin effect because all the strands are short-circuited together and behave as a single conductor. A stranded wire will have higher resistance than a solid wire of the same diameter because the cross-section of the stranded wire is not all copper; there are unavoidable gaps between the strands (this is the circle packing problem for circles within a circle). A stranded wire with the same cross-section of conductor as a solid wire is said to have the same equivalent gauge and is always a larger diameter.

However, for many high-frequency applications, proximity effect is more severe than skin effect, and in some limited cases, simple stranded wire can reduce proximity effect. For better performance at high frequencies, litz wire, which has the individual strands insulated and twisted in special patterns, may be used.