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Specification for copper-covered steel wire for telephone and telegraph purposes
This British Standard specifies the electrical and mechanical properties of cold drawn copper-covered steel wire for telephone and telegraph purposes, with two grades of conductivity and three of tensile strength (expressed as minimum breaking load) for a range of wire diameters from 0.51 mm to 4.88 mm together with diameter tolerances for a range of nominal wire diameters.
NOTE 1. The information to be supplied by the purchaser in the enquiry and order is given in appendix A.
NOTE 2. The titles of the publications referred to in this standard are listed on page 5.
Mechanical and electrical properties of copper-covered steel wire with two grades of conductivity and three of tensile strength together with size tolerances for a range of wire sizes.
Metric units.
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