Strand having a limited spring effect
First Claim
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1. A strand comprising:
- one or more electrical conductor wires sized such that the strand has a total section of no more than 0.35 mm2, wherein each electrical conductor wire is constituted by an alloy of copper and tin with;
a tin content of not less than 1500 ppm and not more than 2500 ppm;
an oxygen content of not more than 400 ppm;
an inevitable impurities content of not more than 100 ppm; and
the balance of the content of said alloy being copper;
the electrical conductor wire(s) being exempt from heat treatment during fabrication of the strand.
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Abstract
A strand of section of no more than 0.35 mm2 is provided having one or more electrical conductor wires, where each electrical conductor wire is constituted by an alloy of copper and tin. The tin content is not less than 1500 ppm and not more than 2500 ppm the oxygen content is not more than 400 ppm the inevitable impurities content is not more than 100 ppm and the balance of the content of the alloy is copper with the electrical conductor wire(s) being exempt from heat treatment during fabrication of the strand.
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Citations
13 Claims
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1. A strand comprising:
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one or more electrical conductor wires sized such that the strand has a total section of no more than 0.35 mm2, wherein each electrical conductor wire is constituted by an alloy of copper and tin with; a tin content of not less than 1500 ppm and not more than 2500 ppm; an oxygen content of not more than 400 ppm; an inevitable impurities content of not more than 100 ppm; and the balance of the content of said alloy being copper; the electrical conductor wire(s) being exempt from heat treatment during fabrication of the strand. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. The strand according 1, wherein the diameter of said one or more electrical conductor wires is in the range of 0.10 mm to 0.67 mm.
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9. A strand comprising:
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one or more electrical conductor wires sized such that the strand has a total section of no more than 0.35 mm2, wherein each electrical conductor wire is constituted by an alloy of copper and tin with; a tin content of not less than 700 ppm and not more than 1200 ppm; an oxygen content of not greater than 50 ppm, an inevitable impurities content of not more than 100 ppm; and the balance of the content of said alloy being copper; the electrical conductor wire(s) being exempt from heat treatment during fabrication of the strand. - View Dependent Claims (10, 11, 12)
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13. The strand according 9, wherein the diameter of said one or more electrical conductor wires is in the range of 0.10 mm to 0.67 mm.
Specification