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Insulated overlap span
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An overlap span arranged with insulation between the two sections of overhead line equipment so that by the opening of an isolator or by the removal of connections, one section may be electrically separated from the other.
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Insulation, английский
- Material which offers extremely high resistance to the passage of current.
- Any material high in resistance to heat transmission that, when placed in the walls, ceiling, or floors of a structure, and will reduce the rate of heat flow.
- Any material that slows down the transfer of heat.
- Any material that reduces the speed of heat transfer
- Изоляция
- A material having high resistance to the flow of electric current. often called a dielectric.
- Изоляция; материал, используемый для изоляции холодильника (морозильника, термоконтейнера и т.п.) integrated disease surveillance (ids)
- Изоляция; материал, используемый для изоляции холодильника (морозильника, термоконтейнера и т.п.)
- Изоляция; изоляционный материал
- A material used to prevent the flow of heat into or out of a building. often consists of ‘batts’ placed in the ceilings and walls, but can also be metal foil or ‘loose fill’ materials, such as recycled paper fluff.
- A material used to prevent the flow of electricity. normally used on electrical wires to prevent electric shock. typical materials used include plastics such as pvc and polypropylene, as well as ceramics and minerals such as mica.
Electrical, английский
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Overlap span, английский
An overlapping of the ends of two lengths of overhead line equipment, arranged in such a manner that the pantographs of electric trains can pass smoothly and without break of contact from one contact wire to the next over the same track.
Hot box, английский
- An overheated axle bearing on either a locomotive or wagon.
- A term for an axlebox which has become over heated because of a breakdown of lubrication or excessive overloading. nowadays largely eliminated by the adoption of roller bearing axleboxes which have replaced plain bearing axleboxes. lineside hot box detectors are used by some railways.
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