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Suez Canal Overhead Powerline Crossing
The Suez Canal overhead powerline crossing is a major electrical power line built across the Suez Canal in 1998, located near Suez, Egypt. It is designed for two 500 kV circuits. Because the required clearance over the Suez Canal is , the overhead line has two high pylons (one on either side of the crossing) in spite of its small span width of . The pylons each have four crossarms: three for the conductors and one for catching the conductors in case of an insulator string failure. Significant developments in the region The crossing was part of a major drive to develop the areas surrounding the Suez Canal, including other projects such as the Ahmed Hamdi Tunnel under the Suez Canal (completed in 1981), the El Ferdan Railway Bridge, and the Suez Canal Bridge (completed in 2001). It was constructed by a consortium between STFA Enerkom and Siemens. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suez Canal Overhead Line Crossing
The Suez Canal overhead powerline crossing is a major Electric power transmission, electrical power line built across the Suez Canal in 1998, located near Suez, Egypt. It is designed for two 500 kV circuits. Because the required clearance over the Suez Canal is , the overhead line has two high Electricity pylon, pylons (one on either side of the crossing) in spite of its small span width of . The pylons each have four crossarms: three for the conductor (material), conductors and one for catching the conductors in case of an Electrical insulation, insulator string failure. Significant developments in the region The crossing was part of a major drive to develop the areas surrounding the Suez Canal, including other projects such as the Ahmed Hamdi Tunnel under the Suez Canal (completed in 1981), the El Ferdan Railway Bridge, and the Suez Canal Bridge (completed in 2001). It was constructed by a consortium between STFA Enerkom and Siemens. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Ferdan Railway Bridge
The El Ferdan Railway Bridge is a swing bridge that spans the western shipping lane of the Suez Canal near Ismailia, Egypt. It is the longest swing bridge in the world, with a span of . The bridge is no longer functional due to the expansion of the Suez Canal completed in 2015 which added a parallel shipping lane just east of the existing bridge, cutting off the railway into Sinai. As of 2021 a second swing bridge spanning the new eastern shipping lane is under construction. When completed, service on the bridge can resume. History The first El Ferdan Railway Bridge over the Suez Canal was completed in April 1918 for the Sinai Military Railway.Hughes, 1981, page 17 It was considered a hindrance to shipping so after the First World War it was removed. A steel swing bridge was built in 1942 (during the Second World War), but this was damaged by a steamship and removed in 1947. A double swing bridge was completed in 1954 but the 1956 Anglo-Franco-Israeli war with Egypt severed ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Egypt
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Infrastructure In Egypt
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1998
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Towers
Several extant building fulfill the engineering definition of a tower: "a tall human structure, always taller than it is wide, for public or regular operational access by humans, but not for living in or office work, and are ''self-supporting'' or ''free-standing'', which means no guy-wires for support." This definition excludes continuously habitable buildings and skyscrapers as well as radio and TV masts. Also excluded because they are not designed for public or regular operational access are bridge towers or pylons, wind turbines, chimneys, transmission towers, sculptures and most large statues and obelisks. Towers are most often built to use their height for various purposes, and can stand alone or as part of a larger structure. Some common purposes are for telecommunications, and as a viewing platform. The Tokyo Skytree, completed in February 2012, is , making it the tallest tower, and third-tallest free-standing structure in the world. Entirely self-supported t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' ( Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suez Canal Bridge
The Suez Canal Bridge, also known as the Egyptian–Japanese Friendship Bridge, Al Salam Bridge, Al Salam Peace Bridge or Mubarak Peace Bridge, is a road bridge crossing the Suez Canal at El-Qantara, whose name means "the bridge" in Egyptian Arabic. The bridge links the continents of Africa and Asia. Design and construction The bridge was built with assistance from the Japanese government. The main contractor was Kajima Corporation. The Japanese grant, accounting for 60% of the construction cost (or 13.5 billion yen), was agreed to during the visit of then-President Hosni Mubarak to Japan in March 1995, as part of a larger project to develop the Sinai Peninsula. Egypt bore the remaining 40% (9 billion yen). The bridge was opened in October 2001. The bridge, which has a clearance over the canal and is long, consists of a cable-stayed main span and two long approach spans. The height of the two main pylons supporting the main span is each. The towers were designed in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahmed Hamdi Tunnel
The Ahmed Hamdi Tunnel is a 1640 metre long car tunnel under the Suez Canal, at Shallufa. The tunnel is named after Ahmed Hamdi, an Egyptian engineer and general killed in action during the October War. It has two lanes of traffic, one in each direction, and connects the Asian Sinai Peninsula to the town of Suez on the African mainland. Construction It was originally constructed as a shield tunnel by Tarmac Construction in November 1981. In 1992, the Japanese government granted aid to a project aimed at rehabilitating the tunnel which had developed leaks. It is 1.63 km long and has an outside diameter of 11.6 m. The tunnel reaches a maximum depth of 51 m (167 feet) below ground level. ''www.ace-mb.com'', accessed 10 April 2021 Significant developme ...
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Electric Power Transmission
Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is part of electricity delivery, known as the electrical grid. Efficient long-distance transmission of electric power requires high voltages. This reduces the losses produced by strong currents. Transmission lines use either alternating current (HVAC) or direct current (HVDC). The voltage level is changed with transformers. The voltage is stepped up for transmission, then reduced for local distribution. A wide area synchronous grid, known as an "interconnection" in North America, directly connects generators delivering AC power with the same rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Insulation
An electrical insulator is a material in which electric current does not flow freely. The atoms of the insulator have tightly bound electrons which cannot readily move. Other materials—semiconductors and conductors—conduct electric current more easily. The property that distinguishes an insulator is its resistivity; insulators have higher resistivity than semiconductors or conductors. The most common examples are non-metals. A perfect insulator does not exist because even insulators contain small numbers of mobile charges (charge carriers) which can carry current. In addition, all insulators become electrically conductive when a sufficiently large voltage is applied that the electric field tears electrons away from the atoms. This is known as the breakdown voltage of an insulator. Some materials such as glass, paper and PTFE, which have high resistivity, are very good electrical insulators. A much larger class of materials, even though they may have lower bulk resistivit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conductor (material)
In physics and electrical engineering, a conductor is an object or type of material that allows the flow of charge ( electric current) in one or more directions. Materials made of metal are common electrical conductors. Electric current is generated by the flow of negatively charged electrons, positively charged holes, and positive or negative ions in some cases. In order for current to flow within a closed electrical circuit, it is not necessary for one charged particle to travel from the component producing the current (the current source) to those consuming it (the loads). Instead, the charged particle simply needs to nudge its neighbor a finite amount, who will nudge ''its'' neighbor, and on and on until a particle is nudged into the consumer, thus powering it. Essentially what is occurring is a long chain of momentum transfer between mobile charge carriers; the Drude model of conduction describes this process more rigorously. This momentum transfer model makes metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
