UL 4:2004 pdf download Armored Cable
5 Conductors
5.1 General
5.1.1 Only copper, copper-clad aluminum, or an acceptable aluminum alloy shall be used for theconductors in a cable. Soft-annealed copper shall comply with the American Society for Testing andMaterials Standard Specification for Soft or Annealed Copper Wire, ASTM B 3-01. Solid 12 – 8 AWGaluminum conductors shall comply with the requirements for aluminum-wire stock (aluminum-alloyconductor material). All aluminum conductors shall comply with the requirements for semi-annealed 8000series conductors in Section 10 of UL 1581, Copper-clad aluminum conductors shall comply with therequirements for copper-clad aluminum conductors in Section 11 of UL 1581. In a given cable, allconductors need not be of the same metal.
5.1.2 A copper conductor shall not be smaller than 14 AWG and shall not be larger than 1 AWG. Analuminum or copper-clad aluminum conductor shall not be smaller than 12 AWG and shall not be largerthan 1 AWG.
5.1.3 Each 6 – 1 AWG conductor shall be stranded. Conductors shall comply with the requirements in theStandard for Thermoset-lnsulated Wires and Cables. UL 44. or in the Standard for ThermoplasticInsulated Wires and Cables, UL 83, except as modified in this Section.
5.2 Circuit conductors
5.2.1 The circuit conductors in Type ACHH cable shall be Type RHH or Type XHH complying with theStandard for Thermoset-Insulated Wires and Cables (UL 44).
5.2.2 The circuit conductors in Type ACTH cable shall be Type THW complying with the Standard forThermoplastic-Insulated Wires and Cables (UL 83).
5.2.3 The circuit conductors in Type ACTHH cable shall be Type THHN complying with the Standard forThermoplastic-lnsulated Wires and Cables (UL 83) or insulated conductors that comply with therequirements for conductors for use in Type ACTHH cable in UL 83 (these conductors have insulation ofPVC or a thermoplastic other than PVC and do not have a nylon jacket).
5.2.4 Surface marking of the conductors indicated in 5.2.1 – 5.2.3 is not required, however, they shall notbe marked with any designation such as THWN, THW, or RHW that indicates that they are for use in wetlocations.
5.2.5 Conductors shall be without splices or joints of any kind within the armor, other than those-thatcomply with the requirements for splices and joints in the applicable standard mentioned in 5:2.f’- 5.2.3
5.3 Grounding conductor 5.3.1 One or more grounding conductors are acceptable in a cable but are not required. Each grounding conductor shall be either of the same construction as the circuit conductors, or an uninsulated copper or aluminum conductor with or without a paper covering. A maximum of one uninsulated grounding conductor is acceptable in a cable. Each grounding conductor shall be cabled with the circuit conductors and shall be entirely in one location in the cable – that is, it shall not be divided into two or more parts cabled separately or distributed helically – and, if insulated, shall be identified as indicated in 1 7.4. Each grounding conductor shall not be smaller than indicated in Table 5.1 or Table 5.2. Provision of an uninsulated grounding conductor with or without a paper covering or insulated grounding conductors does not remove the need for the aluminum bonding strip required in 7.6.1 .