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1 расстояние утечки
расстояние утечки
Кратчайшее расстояние по поверхности изоляционного материала между двумя токопроводящими1) частями.
Примечание. Стык между двумя элементами из изоляционного материала считают частью поверхности.
[ ГОСТ Р 50030. 1-2000 ( МЭК 60947-1-99)]
расстояние утечки (см. приложение В)
Кратчайшее расстояние по поверхности изоляционного материала между двумя токопроводящими1) частями.
Примечание — При определении расстояния утечки относительно доступных частей следует рассматривать доступную поверхность изоляционной оболочки как токопроводящую, как если бы она была покрыта металлической фольгой во всех местах, где ее можно коснуться рукой или стандартным испытательным пальцем в соответствии с рисунком 9
[ ГОСТ Р 50345-99( МЭК 60898-95)]
расстояние утечки по поверхности
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[IEV number 151-15-50]
путь утечки
Кратчайшее расстояние вдоль поверхности изоляции между двумя проводящими частями или между проводящей частью и доступной поверхностью.
[ ГОСТ Р 52161. 1-2004 ( МЭК 60335-1: 2001)]EN
creepage distance
shortest distance along the surface of an insulating material between two conductive parts
NOTE - A joint between two pieces of insulating material is considered part of the surface.
[IEC 60947-1, ed. 5.0 (2007-06)]
creepage distance
shortest distance along the surface of an insulating material between two conductive parts
NOTE - For the purpose of determining a creepage distance to accessible parts, the accessible surface of an insulating enclosure is considered conductive as if it was covered by a metal foil wherever it can be touched by a hand or a standard test finger according to figure 9.
[IEC 60898-1, ed. 1.0 (2002-01)]
creepage distance
shortest distance along the surface of insulation between two conductive parts or between a conductive part and the accessible surface
[IEC 60335-1, ed. 4.0 (2001-05)]
creepage distance
shortest distance along the surface of a solid insulating material between two conductive parts
[IEV number 151-15-50]FR
ligne de fuite
distance la plus courte le long de la surface d'une matière isolante entre deux parties conductrices
NOTE - Un joint entre deux portions de matière isolante est considéré comme faisant partie de la surface.
[IEC 60947-1, ed. 5.0 (2007-06)]
ligne de fuite
distance la plus courte le long de la surface d'une matière isolante entre deux parties conductrices
NOTE - Pour la détermination d'une ligne de fuite pour des parties accessibles, la surface accessible d'une enveloppe isolante est considérée comme conductrice comme si elle était recouverte d'une feuille métallique à tout endroit où elle peut être touchée par la main ou par le doigt d'essai normalisé conforme à la figure 9.
[IEC 60898-1, ed. 1.0 (2002-01)]
ligne de fuite
plus petite distance le long de la surface de l’isolation entre deux parties conductrices ou entre une partie conductrice et la surface accessible
[IEC 60335-1, ed. 4.0 (2001-05)]
ligne de fuite, f
distance la plus courte, le long de la surface d'un isolant solide, entre deux parties conductrices
[IEV number 151-15-50]1) Должно быть проводящими
[Интент]Недопустимые, нерекомендуемые
Тематики
- электротехника, основные понятия
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > расстояние утечки
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2 загрязнение (в электробезопасности)
загрязнение
Присутствие инородного вещества: твердого, жидкого или газообразного (ионизированные газы), - которое может вызвать уменьшение диэлектрической прочности или поверхностного сопротивления.
[ ГОСТ Р 52319-2005( МЭК 61010-1: 2001)]
загрязнение
Любое добавление инородных веществ, твердых, жидких или газообразных (ионизированных газов), которые могли бы уменьшить электрическую прочность изоляции или удельное сопротивление поверхности.
[ ГОСТ Р 50030. 1-2000 ( МЭК 60947-1-99)]EN
pollution
any condition of foreign matter, solid, liquid or gaseous (ionized gases), that may affect dielectric strength or surface resistivity
[IEC 60947-1, ed. 5.0 (2007-06)]
pollution
any addition of foreign matter, solid, liquid or gaseous that can produce a permanent reduction of dielectric strength or surface resistivity of the insulation
NOTE – Ionized gases of a temporary nature are not considered as to be a pollution.
[IEV number 442-01-28]
contamination
the first is defined as area and the second as particulate. The first is caused by surface contaminants that cannot be removed by cleaning or are stained after cleaning. Those may be foreign matter on the surface of, for example a localized area that is smudged, stained, discoloured, mottled, etc., or large areas exhibiting a hazy or cloudy appearance resulting from a film of foreign materials
[IEC 62276, ed. 1.0 (2005-05)]FR
pollution
tout apport de matériau étranger solide, liquide ou gazeux (gaz ionisés) qui peut entraîner une réduction de la rigidité diélectrique ou de la résistivité de la surface
[IEC 60947-1, ed. 5.0 (2007-06)]
pollution
tout apport de matériau étranger solide, liquide ou gazeux qui peut entraîner une réduction permanente de la rigidité diélectrique ou de la résistivité de surface de l'isolation
NOTE – Les gaz ionisés de nature fugace ne sont pas considérés comme une pollution.
[IEV number 442-01-28]
Тематики
Обобщающие термины
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > загрязнение (в электробезопасности)
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3 напряжение поверхности
напряжение поверхности
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
surface tension
The force acting on the surface of a liquid, tending to minimize the area of the surface; quantitatively, the force that appears to act across a line of unit length on the surface. Also known as interfacial force; interfacial tension; surface intensity. (Source: MGH)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > напряжение поверхности
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4 поверхностный сток воды
поверхностный сток воды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
surface runoff
Water that travels over the soil surface to the nearest surface stream; runoff of a drainage basin that has not passed beneath the surface since precipitation. (Source: BJGEO)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > поверхностный сток воды
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5 длительный допустимый ток
- Strombelastbarkeit, f
- Dauerstrombelastbarkeit, f
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Русско-немецкий словарь нормативно-технической терминологии > длительный допустимый ток
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6 пещера
пещера
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
cave
1) An underground hollow with access from the ground surface or from the sea, often found in limestone areas and on rocky coastlines.
2) A natural cavity, chamber or recess which leads beneath the surface of the earth, generally in a horizontal or obliquely inclined direction. It may be in the form of a passage or a gallery, its shape depending in part on the joint pattern or structure of the rock and partly on the type of process involved in its excavation. Thus, caves worn by subterranean rivers may be different in character from, and of considerably greater extent than, a sea-cave eroded by marine waves.
3) A natural underground open space, generally with a connection to the surface and large enough for a person to enter. The most common type of cave is formed in a limestone by dissolution.
(Source: CED / WHIT / BJGEO)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > пещера
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7 ветряная эрозия
ветряная эрозия
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
wind erosion
The breakdown of solid rock into smaller particles and its removal by wind. It may occur on any soil whose surface is dry, unprotected by vegetation (to bind it at root level and shelter the surface) and consists of light particles. The mechanisms include straightforward picking up of dust and soil particles by the airflow and the dislodging or abrasion of surface material by the impact of particles already airborne. (Source: ALL)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > ветряная эрозия
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8 климат
климат
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
climate
The average weather condition in a region of the world. Many aspects of the Earth's geography affect the climate. Equatorial, or low, latitudes are hotter than the polar latitudes because of the angle at which the rays of sunlight arrive at the Earth's surface. The difference in temperature at the equator and at the poles has an influence on the global circulation of huge masses of air. Cool air at the poles sinks and spreads along the surface of the Earth towards the equator. Cool air forces its way under the lower density warmer air in the lower regions, pushing the lighter air up and toward the poles, where it will cool and descend. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > климат
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9 использование ресурсов морского дна
использование ресурсов морского дна
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
sea bed exploitation
Marine mineral resources extend far beyond those presently exploited; minerals are derived from two separate types of marine sources: from sedimentary deposits underlying the continental shelves and from inshore deposits on the surface of the continental shelves. By far the most valuable of the mineral resources exploited from marine environments is petroleum. Offshore placer deposits on the surface of the continental shelves yield gold, platinum, and tin. On the floors of the world's oceans manganese nodules are found as a result of pelagic sedimentation or precipitation; they are small, irregular, black to brown, friable, laminated concretionary masses consisting primarily of manganese salts and manganese-oxide minerals. (Source: PARCOR / BJGEO)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > использование ресурсов морского дна
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10 обработка питьевой воды
обработка питьевой воды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
drinking water treatment
The Directive on the Quality of Surface Water Intended for Drinking Water defines three categories of water treatment (A1, A2, A3) from simple physical treatment and disinfection to intensive physical and chemical treatment. The treatment to be used depends on the quality of the water abstracted. The Directive uses imperative values for parameters known to have an adverse effect on health and also guide values for those which are less adverse. There is also a directive which complements the "surface water abstraction" Directive by indicating the methods of measurement and the frequency of sampling and analysis required. (Source: PORT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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DE
FR
Русско-немецкий словарь нормативно-технической терминологии > обработка питьевой воды
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11 трекинг
трекинг
Последовательное образование токопроводящих мостиков, которые формируются на поверхности твердого электроизоляционного материала вследствие совместного действия электрического напряжения и наличия загрязнений на его поверхности.
[ ГОСТ Р 51330.20-99]
трекинг
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[IEV number 442-01-41]EN
tracking
the progressive degradation of the surface of a solid insulating material by local discharges to form conducting or partially conducting paths
NOTE – Tracking usually occurs due to surface contamination.
[IEV number 212-01-42]
[IEV number 442-01-41]FR
cheminement
dégradation progressive de la surface d'un matériau isolant solide par des décharges locales formant des chemins conducteurs ou partiellement conducteurs
NOTE – Le cheminement est causé habituellement par une contamination superficielle
[IEV number 212-01-42]
[IEV number 442-01-41]Тематики
- электробезопасность
- электротехника, основные понятия
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > трекинг
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12 разработка ресурсов морского дна
разработка ресурсов морского дна
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
sea bed mining
The activity or processes involving the extraction of mineral deposits from the surface, or below the surface, of the ocean floor. (Source: MLM)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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DE
FR
Русско-немецкий словарь нормативно-технической терминологии > разработка ресурсов морского дна
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13 почвенный процесс
почвенный процесс
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
soil process
The major processes in soils are gains, losses, transfers, and transformations of organic matter, soluble salts, carbonates, silicate clay minerals, sesquioxides, and silica. Gains consist normally of additions of organic matter, and of oxygen and water through oxidation and hydration, but in some sites slow continuous additions of new mineral materials take place at the surface or soluble materials are deposited from groundwater. Losses are chiefly of materials dissolved or suspended in water percolating through the profile or running off the surface. (Source: PARCOR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > почвенный процесс
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14 форма земной поверхности
форма земной поверхности
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
landform
Any physical, recognizable form or feature of the Earth's surface, having a characteristic shape and produced by natural causes; it includes major forms such as plane, plateau and mountain, and minor forms such as hill, valley, slope, esker, and dune. Taken together the landforms make up the surface configuration of the Earth's. (Source: BJGEO)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > форма земной поверхности
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15 вода из родника
вода из родника
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
spring water
Water obtained from an underground formation from which water flows naturally to the surface, or would flow naturally to the surface if it were not collected underground. (Source: WQA)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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FR
Русско-немецкий словарь нормативно-технической терминологии > вода из родника
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16 просачивание воды
просачивание воды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
water seepage
The slow movement of water through small openings and spaces in the surface of unsaturated soil into or out of a body of surface or subsurface water. (Source: MGH)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > просачивание воды
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17 циркуляция морской воды
циркуляция морской воды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
sea circulation
Large-scale horizontal water motion within an ocean. The way energy from the sun, stored in the sea, is transported around the world. The currents explain, for example, why the UK has ice-free ports in winter, while St. Petersburg, at the same latitude as the Shetland Islands, needs ice breakers. Evidence is growing that the world's ocean circulation was very different during the last ice age and has changed several times in the distant past, with dramatic effects on climate. The oceans are vital as storehouses, as they absorb more than half the sun's heat reaching the earth. This heat, which is primarily absorbed near the equator is carried around the world and released elsewhere, creating currents which last up to 1.000 years. As the Earth rotates and the wind acts upon the surface, currents carry warm tropical water to the cooler parts of the world. The strength and direction of the currents are affected by landmasses, bottlenecks through narrow straits, and even the shape of the sea-bed. When the warm water reaches polar regions its heat evaporates into the atmosphere, reducing its temperature and increasing its density. When sea-water freezes it leaves salt behind in the unfrozen water and this cold water sinks into the ocean and begins to flow back to the tropics. Eventually it is heated and begins the cycle all over again. (Source: MGH / WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > циркуляция морской воды
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18 влажность почвы
влажность почвы
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
soil moisture
1) Water stored in soils.
2) One of the most important elements involved in pedological processes and plant growth. There are three basic forms:
a) water adhering in thin films by molecular attraction to the surface of soil particles and not available for plants is termed hygroscopic water.
b) Water forming thicker films and occupying the smaller pore spaces is termed capillary water. Since it is held against the force of gravity it is permanently available for plant growth and it is this type of soil water which contains plant nutrients in solution.
c) Water in excess of hygroscopic and capillary water is termed gravitational water, which is of a transitory nature because it flows away under the influence of gravity. When the excess has drained away the amount of water retained in the soil is termed its field capacity, when some of its pore spaces are still free of water.
(Source: LANDY / DUNSTE)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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DE
FR
Русско-немецкий словарь нормативно-технической терминологии > влажность почвы
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19 ландшафт земной поверхности после завершения горных работ
ландшафт земной поверхности после завершения горных работ
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
landscape after mining
The process of mining disfigures the surface of the land, and in the absence of reclamation leads to permanent scars. The process spoils the vital topsoil, disrupts drainage patterns, destroys the productive capacity of agricultural and forest land and impairs their aesthetic and social value. (Source: WPRa)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-немецкий словарь нормативно-технической терминологии > ландшафт земной поверхности после завершения горных работ
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20 гидрологическое бедствие
гидрологическое бедствие
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
hydrologic disaster
Violent, sudden and destructive change either in the quality of the earth's water or in the distribution or movement of water on land, below the surface or in the atmosphere. (Source: ISEP / APD)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > гидрологическое бедствие
См. также в других словарях:
Beneath the Surface — Infobox Album Name = Beneath the Surface Type = Album Artist = GZA Released = June 29 1999 Recorded = 1998–1999 Genre = Hip hop Length = 46:00 Label = MCA Producer = GZA Arabian Knight RZA John the Baptist Inspectah Deck Mathematics Reviews =… … Wikipedia
Scratch the Surface — Infobox Album Name = Scratch the Surface Type = Album Artist = Sick of It All Released = October 18, 1994 Recorded = 1994 at Normandy Sound, Warren, Rhode Island Genre = Hardcore punk Length = 38:20 Label = Eastwest Records Producer = Sick Of It… … Wikipedia
scratch the surface — {v. phr.} To learn or understand very little about something. Usually used with a limiting adverb (as only , hardly ). * /We thought we understood Africa but when we made a trip there we found we had only scratched the surface./ * /High school… … Dictionary of American idioms
scratch the surface — {v. phr.} To learn or understand very little about something. Usually used with a limiting adverb (as only , hardly ). * /We thought we understood Africa but when we made a trip there we found we had only scratched the surface./ * /High school… … Dictionary of American idioms
Under the Surface — Infobox Album | | Name = Under the Surface Type = Album Artist = Marit Larsen Released = March 2006 Recorded = 2005 Genre = Pop/Folk/Rock Length = 37:02 Label = EMI Producer = Kåre Vestrheim Reviews = * Allmusic Rating|4.5|5… … Wikipedia
Scratching the Surface — Infobox Album | Name = Scratchin the Surface Type = Album Artist = The Groundhogs Released = 1968 Recorded = Genre = Blues Length = 44:03 Label = Producer = Reviews = Last album = This album = Scratching the Surface (1968) Next album = The… … Wikipedia
Scratch the surface — est un album du groupe Sick of It All, sorti en 1994. Ce disque fit émerger le groupe qui devient ainsi un groupe phare de la scène punk/hardcore. Portail du rock Ce document provient de « Scratch the Surface » … Wikipédia en Français
scratch the surface — verb To barely begin; to see or do only a fraction of what is possible. This course only scratches the surface of the subject … Wiktionary
skim the surface — {v. phr.} To do something very superficially. * /He seems knowledgeable in many different areas but his familiarity is very superficial, since he only skims the surface of everything he touches./ … Dictionary of American idioms
skim the surface — {v. phr.} To do something very superficially. * /He seems knowledgeable in many different areas but his familiarity is very superficial, since he only skims the surface of everything he touches./ … Dictionary of American idioms
Scratch the Surface — est un album du groupe Sick of It All, sorti en 1994. Ce disque fit émerger le groupe qui devient ainsi un groupe phare[réf. souhaitée] de la scène punk/hardcore. Portail du rock … Wikipédia en Français