Abstract

This specification deals with bare fine-wire bunch-stranded and rope-lay bunch-stranded copper conductors made from round copper wires finer than No. 40 AWG, either coated or uncoated with tin or silver, for use as electrical conductors. The conductor types covered in this specification are designated Type B for bunch-stranded conductors, and Type R for rope-lay bunch-stranded conductors. On the other hand, the wire classifications are assigned as: Class R, stranded conductors using wire 42 AWG; Class S, stranded conductors using wire 44 AWG; Class T, stranded conductors using wire 46 AWG; Class U, stranded conductors using wire 48 AWG; and Class V, stranded conductors using wire 50 AWG. Wires shall undergo tests that shall evaluated their conformance to physical and electrical properties such as wire cross-sectional area and diameter, coating thickness, tensile strength, elongation, and DC resistance.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B33 Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes

B49 Specification for Copper Rod Drawing Stock for Electrical Purposes

B172 Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors

B174 Specification for Bunch-Stranded Copper Conductors for Electrical Conductors

B193 Test Method for Resistivity of Electrical Conductor Materials

B258 Specification for Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

B298 Specification for Silver-Coated Soft or Annealed Copper Wire

B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

Keywords

copper electrical conductor; electrical conductor; electrical conductorcopper; fine-wire bunch-stranded conductor; rope-lay bunch-stranded conductor; stranded conductor;

ICS Code

ICS Number Code 29.050 (Superconductivity and conducting materials)

DOI: 10.1520/B0738-13

ASTM International is a member of CrossRef.

ASTM B738