-
21 aquifčre
водоносный пласт
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
aquifer
Layers of rock, sand or gravel that can absorb water and allow it to flow. An aquifer acts as a groundwater reservoir when the underlying rock is impermeable. This may be tapped by wells for domestic, agricultural or industrial use. A serious environmental problem arises when the aquifer is contaminated by the seepage of sewage or toxins from waste dumps. If the groundwater in coastal areas is over-used salt water can seep into the aquifer. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > aquifčre
-
22 impédance du circuit d'entrée
входное полное сопротивление
-
[IEV number 312-06-18]EN
input impedance
impedance of the input circuit measured between the input terminals under operating conditions
NOTE 1 – The impedance can be expressed in terms of admittance.
NOTE 2 – In certain instances, for example, sampling devices or self-balancing potentiometers, the impedance can be different according to the instant when it is determined, before, during or after the instant of measurement.
NOTE 3 – When the input circuit is such that the instantaneous value of the current flowing into the input terminals is a non-linear function of the instantaneous value of the input voltage under specified conditions of frequency and voltage, the combination of resistance and reactance which would absorb the same active power and in which would flow a reactive current equal to the fundamental component that is flowing in the actual input circuit, is sometimes called the "equivalent input impedance".
[IEV number 312-06-18]FR
impédance du circuit d'entrée
impédance du circuit d'entrée entre les bornes d'entrée dans les conditions de fonctionnement
NOTE 1 – L'impédance peut être exprimée en termes d'admittance.
NOTE 2 – Dans certains cas, par exemple les dispositifs d'échantillonnage ou les potentiomètres à rééquilibrage automatique, l'impédance peut être différente selon l’instant où elle est déterminée, avant, pendant ou après la mesure.
NOTE 3 – Lorsque le circuit d'entrée est tel que la valeur instantanée du courant traversant les bornes d'entrée est une fonction non linéaire de la valeur instantanée de la tension d'entrée dans des conditions spécifiées de fréquence et de tension, l'impédance d'une combinaison formée par une résistance et une réactance qui absorberaient la même puissance active et dans laquelle circulerait un courant réactif égal à la composante fondamentale qui circule dans le circuit d'entrée réel, est parfois appelée "impédance équivalente d'entrée".
[IEV number 312-06-18]Тематики
- измерение электр. величин в целом
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > impédance du circuit d'entrée
-
23 impédance du circuit de sortie
выходное полное сопротивление
-
[IEV number 312-06-19]EN
output impedance
impedance of the output circuit measured between the output terminals under operating conditions
NOTE 1 – The impedance can be expressed in terms of admittance.
NOTE 2 – In certain instances, for example, sampling devices or self-balancing potentiometers, the impedance can be different according to the instant when it is determined, before, during or after the instant of measurement.
NOTE 3 – When the output circuit is such that the instantaneous value of the current flowing into the output terminals is a non-linear function of the instantaneous value of the output voltage under specified conditions of frequency and voltage, the combination of resistance and reactance which would absorb the same active power and in which would flow a reactive current equal to the fundamental component that is flowing in the actual output circuit, is sometimes called the "equivalent output impedance".
[IEV number 312-06-19]FR
impédance du circuit de sortie
impédance du circuit de sortie entre les bornes de sortie dans les conditions de fonctionnement
NOTE 1 – L'impédance peut être exprimée en termes d'admittance.
NOTE 2 – Dans certains cas, par exemple les dispositifs d'échantillonnage ou les potentiomètres à rééquilibrage automatique, l'impédance peut être différente selon l’instant où elle est déterminée, avant, pendant ou après la mesure.
NOTE 3 – Lorsque le circuit de sortie est tel que la valeur instantanée du courant traversant les bornes de sortie est une fonction non linéaire de la valeur instantanée de la tension de sortie dans des conditions spécifiées de fréquence et de tension, l'impédance d'une combinaison formée par une résistance et une réactance qui absorberaient la même puissance active et dans laquelle circulerait un courant réactif égal à la composante fondamentale qui circule dans le circuit de sortie réel, est parfois appelée "impédance équivalente de sortie".
[IEV number 312-06-19]Тематики
- измерение электр. величин в целом
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > impédance du circuit de sortie
-
24 courant admissible, m
(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
Франко-русский словарь нормативно-технической терминологии > courant admissible, m
-
25 courant permanent admissible, m
(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
Франко-русский словарь нормативно-технической терминологии > courant permanent admissible, m
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26 serre-câble
кабельный анкер
Устройство, предназначенное для уменьшения натяжения проводников в местах присоединения их к зажимам или муфтам или для предотвращения отсоединения кабеля от оболочки.
[ ГОСТ Р МЭК 61084-2-2-2007]EN
cable anchorage
a system accessory used to relieve conductors from strain in terminals or terminations or to prevent a cable from becoming detached from an enclosure
[IEC 61084-2-2, ed. 1.0 (2003-05)]FR
serre-câble
accessoire du système destiné à soulager les conducteurs isolés des efforts au niveau des bornes ou terminaisons ou à empêcher un câble de se détacher d'une enveloppe
[IEC 61084-2-2, ed. 1.0 (2003-05)]Тематики
- изделие электромонтажное
- электропроводка, электромонтаж
EN
FR
кабельный зажим
Деталь или сборочная единица, предназначенная для закрепления кабеля или жгута проводов и обеспечивающая защиту хвостовиков электрического соединителя от механических усилий
[ ГОСТ 21962-76]EN
cable clamp
accessory or part of a component which grips the cable or wire to provide strain relief and absorb mechanical stress which would otherwise be transmitted to the termination
[IEV number 581-27-89]FR
serre-câble
accessoire ou partie de composant destiné à agripper le câble ou le fil, réduire les contraintes et absorber les efforts mécaniques qui, autrement, seraient transmis à la sortie
[IEV number 581-27-89]
Тематики
EN
DE
- Zugentlastungsklemme, f
FR
Франко-русский словарь нормативно-технической терминологии > serre-câble
-
27 azote organique
органический азот
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
organic nitrogen
Essential nutrient of the food supply of plants and the diets of animals. Animals obtain it in nitrogen-containing compounds, particularly aminoacids. Although the atmosphere is nearly 80% gaseous nitrogen, very few organisms have the ability to use it in this form. The higher plants normally obtain it from the soil after microorganisms have converted the nitrogen into ammonia or nitrates, which they can then absorb. This conversion of nitrogen, known as nitrogen fixation, is essential for the formation of amino acids which, in turn, are the building blocks of proteins. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > azote organique
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28 technologie de l'énergie solaire
технология использования солнечной энергии
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
solar energy technology
Solar energy can be converted to useful work or heat by using a collector to absorb solar radiation, allowing much of the sun's radiant energy to be converted to heat. This heat can be used directly in residential, industrial, and agricultural operations; converted to mechanical or electrical power; or applied in chemical reactions for production of fuels and chemicals. (Source: PARCOR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > technologie de l'énergie solaire
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29 circulation maritime
циркуляция морской воды
—
[ 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
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > circulation maritime
- 1
- 2
См. также в других словарях:
absorb — 1 Absorb, imbibe, assimilate can all mean to take (something) in so as to become imbued with it or to make it a part of one’s being. The original meaning of absorb, to swallow up (both literally and figuratively), has been retained in spite of… … New Dictionary of Synonyms
absorb — ab‧sorb [əbˈsɔːb, əbˈzɔːb ǁ ɔːrb] verb [transitive] COMMERCE 1. if a large organization absorbs a smaller one, it takes control of it and makes it part of the organization: • The company was absorbed by IBM in 1995. absorb into • Several smaller… … Financial and business terms
Absorb — Ab*sorb , v. t. [imp. & p. p. {Absorbed}; p. pr. & vb. n. {Absorbing}.] [L. absorbere; ab + sorbere to suck in, akin to Gr. ?: cf. F. absorber.] 1. To swallow up; to engulf; to overwhelm; to cause to disappear as if by swallowing up; to use up;… … The Collaborative International Dictionary of English
absorb — ab·sorb vt 1: to make (a right guaranteed by the U.S. Constitution) applicable to the states 2 a: to bear or assume the burden of expenses were absorb ed by the company b: to lessen the tax liability for has other losses to absorb the income D. Q … Law dictionary
absorb — [v1] physically take in a liquid blot, consume, devour, drink in, imbibe, ingest, ingurgitate, osmose, soak up, sop up*, sponge up*, suck in*, swallow, take in; concept 256 Ant. disperse, dissipate, eject, emit, exude, spew, vomit absorb [v2]… … New thesaurus
absorb — (v.) early 15c., from M.Fr. absorber (O.Fr. assorbir, 13c.), from L. absorbere to swallow up, from ab from (see AB (Cf. ab )) + sorbere suck in, from PIE root *srebh to suck, absorb (Cf. Armenian arbi I drank, Gk … Etymology dictionary
absorb — ► VERB 1) soak up (liquid or another substance). 2) take in (information). 3) assimilate or take over (something less powerful). 4) use up (time or resources). 5) reduce the effect or intensity of (sound or an impact). 6) (usu. as absorbed or … English terms dictionary
absorb — [ab sôrb′, abzôrb′; əbsôrb′] vt. [L absorbere < ab , from + sorbere, to suck in: see SLURP] 1. to suck up [blotting paper absorbs ink] 2. to take up the full attention or energy of; engross 3. to take in and incorporate; assimilate 4. to… … English World dictionary
absorb */*/ — UK [əbˈzɔː(r)b] / US [əbˈsɔrb] / US [əbˈzɔrb] verb [transitive] Word forms absorb : present tense I/you/we/they absorb he/she/it absorbs present participle absorbing past tense absorbed past participle absorbed 1) a) to take in a gas, liquid, or… … English dictionary
absorb — 01. Children are like little sponges that seem to be able to [absorb] languages very quickly. 02. The course I took was very intensive, and I had a lot of information to [absorb] in a short time. 03. These diapers are very [absorbent], so your… … Grammatical examples in English
absorb — [[t]əbzɔ͟ː(r)b[/t]] absorbs, absorbing, absorbed 1) VERB If something absorbs a liquid, gas, or other substance, it soaks it up or takes it in. [V n] Plants absorb carbon dioxide from the air and moisture from the soil... [be V ed into n] Refined … English dictionary
