- overhead systems
- • въздушна електрическа мрежа• контактна мрежа
English-Bulgarian polytechnical dictionary . 2013.
overhead systems
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Overhead lines — This article is about the transmission of electrical power to road and rail vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission. For powerlines mounted on pylons, see overhead power line.… … Wikipedia
Overhead projector — in operation during a classroom lesson An overhead projector is a variant of slide projector that is used to display images to an audience. Contents 1 Mechanism … Wikipedia
Overhead — may be: Overhead (business), the ongoing operating costs of running a business Engineering overhead, ancillary design features required by a component of a device Computational overhead, ancillary computation required by an algorithm or program… … Wikipedia
Overhead power line — This article is about power lines for general transmission of electrical power. For overhead lines used to power road and rail vehicles, see Overhead lines. Transmission lines in Lund, Sweden … Wikipedia
Overhead camshaft — A cylinder head sliced in Fifths shows two overhead camshafts one above each of the two valves. Overhead cam (OHC) valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valves… … Wikipedia
Overhead valve — OHV redirects here. OHV may also refer to Off highway vehicle. Components of a pushrod valve actuation system … Wikipedia
Overhead cable — Pole carrying electricity, Cable TV, and telephone equipment (top to bottom), in New Zealand. Two pairs of shoes can be seen hanging from wires. An overhead cable is a cable for the transmission of information, laid on utility poles. Overhead… … Wikipedia
overhead crossing — A highway elevated and crossing over a railroad track, thereby avoiding a grade crossing. One railroad elevated and crossing above another railroad. 44 Am J1st RR § 286. A highway elevated and crossing over another highway, common in modern… … Ballentine's law dictionary
List of current systems for electric rail traction — This a list of the power supply systems that are, or have been, used for tramway and railway electrification systems. Note that the voltages are nominal and vary depending on load and distance from the substation. Many modern trams and trains use … Wikipedia
Rafael Overhead Weapon Station — Overhead Weapons Station (OWS) Type Remote Weapon System Place of origin Israel … Wikipedia
Engineered Lifting Systems & Equipment — Inc. Type Private Industry Manufacturing Founded Waterloo, Ontario (1971) F … Wikipedia
