Messenger Wire

Some articles on wire, messenger wire:

Overhead Line - Construction
... high-speed current collection, it is necessary to keep the contact wire geometry within defined limits ... This is usually achieved by supporting the contact wire from above by a second wire known as the messenger wire (US Canada) or catenary (UK) ... This wire approximates the natural path of a wire strung between two points, a catenary curve, thus the use of catenary to describe this wire or sometimes the whole system ...

Famous quotes containing the words wire and/or messenger:

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