Wire Looms Information

Wire Looms Information

Wire looms are special, corrugated conduits used to organize cables and wires. There are two basic types: split and non-split. Split wire looms are flexible tapes and/or tubes which are opened on the side. They are used to organize cables and wires by allowing the entry or exit of wires at any point. Unlike split wire looms, non-split wire looms do not have a side opening to insert the wires. However, both products carry specifications such as maximum diameter, length, and temperature range. In addition, some wire loom suppliers describe their wire harness accessories as being designed to maintain cable alignment in continuous-flexing applications.

Specifying wire looms requires an analysis of available features. Products with layers of shielding against electromagnetic interference (EFI) or radio frequency interference (RFI) are commonly available, and designed for use with electrical or electronic equipment. Liquid-tight wire looms provide protection against the ingress of penetrating water, oils, and other liquids. They are often used in chemical processing facilities. Flame-retardant wire looms are designed to stop flames from fire. Wire looms with a 90° elbow or an integral thermal shield are also available. Typically, products that are equipped with a thermal shield are used in high-heat environments.

Wire Looms Sold in Europe

Wire looms that that are sold in Europe must comply with RoHS, WEEE, and ELV. Restriction of Hazardous Substances (RoHS) is a European Union (EU) which requires manufacturers of electronic and electrical equipment to demonstrate that their products contain only minimal levels of lead, mercury, cadmium, hexavalent chromium, and polybrominated biphenyl and polybrominated diphenyl ether. Similarly, the End of Life Vehicles (ELV) Directive requires that certain automotive products be free (except for trace impurities) of mercury, cadmium and lead. Waste Electrical and Electronics Equipment (WEEE) is an EU directive that encourages the recycling and re-use of electrical and electronic equipment, including accessories such as wire looms.

Wire Looms Sold in North America

Wire looms that are sold in North America may bear marks from organizations such as Underwriters Laboratories (UL) or the Canadian Standards Association (CSA). The UL Mark indicates that samples of a product have met published safety requirements from Underwriters Laboratories. Similarly, the CSA Mark indicates that wire looms meet requirements from the Canadian Standards Association (CSA).

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