page_title: Thermoplastic-sheathed cable
section_title: Description
hierarchical_section_title: Thermoplastic-sheathed cable / Description
caption_attribution_description: English: A photo showing the rough-in stage of an electrical wiring project, where thermoplastic-sheathed cable has been run through holes in wooden beams and protective metal plates have been fitted. Electrical switches and outlets have not been fitted at this stage.
context_page_description: A thermoplastic-sheathed cable consists of a toughened outer sheath of polyvinyl chloride thermoplastic, covering one or more individual annealed copper conductors, themselves insulated with PVC. This type of wiring is commonly used for residential and light commercial construction in many countries. The flat version of the cable, with two insulated conductors and an uninsulated earth conductor, is referred to as twin and earth. In mainland Europe, a round equivalent is more common.
context_section_description: Each of the current carrying conductors in the "core" is insulated by an individual thermoplastic sheath, coloured to indicate the purpose of the conductor concerned.  The Protective Earth conductor may also be covered with Green/Yellow (or Green only) insulation, although, in some countries, this conductor may be left as bare copper. With cables where the current carrying conductors are of a large Cross Sectional Area (CSA) and current carrying capacity, the Protective Earth conductor may be found to be of a smaller CSA, with a lower continuous current carrying capacity.  The conductors used may be solid in cross-section or multi-stranded.
  The type of thermoplastic, the dimensions of the conductor(s) and the colour of their individual insulation (if any) are specified by the regulatory bodies in the various countries concerned.
  Thermoplastic-sheathed cable is more vulnerable to rodent damage and accidental mechanical damage than wiring within electrical conduit or armored cable.
caption: During the "rough in" stage of a wiring project, TPS cable has been run through holes in wooden supports and protective metal plates have been fastened in place
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