CPC B60M 1/22 (2013.01) [H01B 1/026 (2013.01); H01B 5/105 (2013.01); H01B 9/008 (2013.01)] | 31 Claims |
1. An electrical train messenger wire, the messenger wire comprising:
a single unitary fiber-reinforced composite strength member, the single unitary fiber-reinforced strength member having a tensile strength of at least about 2100 MPa and a coefficient of thermal expansion (CTE) that is not greater than about 2×10−6/° C.;
a conductive layer surrounding the single unitary fiber-reinforced composite strength member, the conductive layer comprising copper or a copper alloy; and
an insulative layer is disposed between the single unitary fiber-reinforced composite strength member and the conductive layer,
wherein the messenger wire comprises a gap between an outer radius of the single unitary composite strength member and an inner radius of the conductive layer.
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