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Catenary wire
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A bare stranded conductor, being the uppermost of the two overhead wires mounted above the track and supporting the contact wire.
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Catenary, английский
- Цепная линия
- The curve formed by a flexible cord hung between two points of support.
- The sag in a line or chain that is suspended between two points. the deeper the curve the more the catenary. when its cable is almost straight the anchor is easily snubbed or lifted from the ground, but with a full catenary it lies along the bottom so that any pull tends to dig the flukes in deeper. the word is derived from the latin for chain, and one of the main reasons chain is used for anchor cables is that its weight tends to form a natural catenary.
- Originally the term used to denote an overhead power line support wire derived from the curve a suspended wire naturally assumes under the force of gravity. now adopted to mean the whole overhead line system. see overhead.
- Term given to overhead wires which support the contact wire.
Catenary -, английский
Цепная линия
Catenary arch, английский
An arch which takes the form of an inverted catenary.
Catenary suspension, английский
Catenary weight, английский
Груз, подвешиваемый на якорной цепи
Wire, английский
- Проводник без разъемов для коммутации на кроссах
- String or metal wire above the table with beads or balls for keeping score
- A circus apparatus and name of relevant circus genre. the following two types of wire are used in wire-walker`s acts tightly stretched wire and free fastened wire (in the last case the wire tension is weak and it sags under the weight of performer).
- Провод, проволока; проволочный
- A filament or slender rod of drawn metal.
- Проволока
- Трапеция; трос стальной
- A metal strand or filament. see wire rope. wire rope:wire rope or cable (the names are here interchangeable) refers to a number of metal strands twisted together, each consisting of individual wires laid helically about a central core. this produces metal in its strongest, yet most flexible form. it is unusual to think of rope as a machine, but it is composed of moving parts working in relation to one another. for example, a six-strand rope consisting of forty-nine wires per strand, laid around an independent wire rope core, contains a total of 343 individual wires, each of which must blend with and move relative to the others to give the flexibility necessary for successful operation. various types have been designed to meet a wide range of operating conditions. they are designated by the kind of core (fabric, metal, plastic, etc.); the number of strands; the number, size, and arrangement of the wires in each strand; and the way in which the wires and strands are wound, or laid. most ropes used for nautical duty are fabricated from plow-steel strands laid around a steel core. they must be easy to handle and able to withstand corrosion, but these traits tend to be mutually exclusive. a galvanized finish on individual wires can provide some corrosion protection, but relatively large diameters are needed to prolong resistance. bigger wires usually mean less flexibility, reducing handling ease. to provide the desired combination of handling properties and corrosion resistance for marine service, the fiber content is normally increased. this reduces the strength, but the sacrifice is necessary.
- Strong metal fishing line with no stretch. used mostly in deep sea fishing for big game fish like shark or barracuda.
Wire, английский
Wire -, английский
Барабан [катушка] с намотанной проволокой
Wire band, английский
Wire brad, английский
A brad, 1.
Wire braid air hose, английский
Wire breaker, английский
Wire broadcasting, английский
Wire brush, английский
Wire cable, английский
Cable 1
Wire center, wc, английский
Центр проводной cc
Wire cloth, английский
- A stiff fabric of fine woven wire; used in screens for excluding insects, in sieves, etc.; in
- Тканая металлическая сетка (устанавливают на фильтрах для доочистки сточных вод)
Wire comb., английский
Wire communication line, английский
Wire covering, английский
Supporting, английский
- Поддержка: обеспечение
- Монтаж и крепление
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Physical barrier, английский
A barrier which physically separates a worksite and its activities from activities beyond the barrier.
Contact wire, английский
- A bare solid conductor being the lowest of the two overhead wires mounted directly above the track centreline. the pantographs of electric trains press against the underside of this wire and collect the current required by the train.
- The overhead wire which an electric train’s pantograph actually touches in order to draw power.
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