Keywords: NON FERROUS
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Journal Articles
Minutes of the Proceedings of the Institution of Civil Engineers (1919) 208 (1919): 418–461.
Published: 01 January 1919
... is an entirely non-ferrous constructionemploying a copper catenary and a copper contact wire. The second is a modification of the first, employing B copper contact wire of thesame size, h t replacing tlle copper catenary by a steel wire-the conductivity in the copper catenary being now provided by a fceder of F...

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