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1 multiple
multiple [myltipl]1. adjectivea. ( = nombreux) numerous ; [fracture, grossesse] multipleb. ( = complexe) [problème] many-sided2. masculine noun* * *myltipl
1.
1) ( nombreux) [raisons, occasions] numerous, many; [naissances] multipleaprès de multiples spéculations/tergiversations — after much speculation/hesitation
à choix multiple — multiple-choice (épith)
2) ( divers) [buts, causes, facettes] many, various3) Botanique, Mathématique, Physique multiple
2.
nom masculin multiple* * *myltipl1. adj(au pluriel) (partenaires) multiple2. nmMATHÉMATIQUE multiple* * *A adj1 ( nombreux) [raisons, occasions] numerous, many; [naissances] multiple; après de multiples spéculations/tergiversations after much speculation/hesitation; salle/appareil à usages multiples multipurpose hall/appliance; à choix multiple multiple-choice ( épith);2 ( divers) [buts, causes, facettes] many, various;[myltipl] adjectifpersonnalité aux multiples facettes many-sided ou multifaceted personality————————[myltipl] nom masculin -
2 plus petit commun multiple
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3 ppcm
pepeseɛm nmMATHÉMATIQUE plus petit commun multiple LCM, (lowest common multiple)* * *PPCM nm (abbr = plus petit commun multiple) LCM, lcm. -
4 simple
simple [sɛ̃pl]1. adjectivea. simple ; [nœud, cornet de glace] single• pour faire simple... (faire les choses simplement) to make things simple... ; (dire les choses simplement) to put it simply...b. ( = modeste) [personne] unpretentiousc. ( = de condition modeste) ce sont des gens simples they are simple folkd. ( = naïf) simplee. ( = ordinaire) [particulier, salarié] ordinary• vous obtiendrez le cadeau sur simple envoi de ce bon for your free gift, simply send us this voucher• vous obtiendrez des informations sur simple appel simply pick up the phone and you will get all the information you need2. masculine noun• les prix peuvent varier du simple au double prices can vary by as much as 100%• simple messieurs/dames men's/women's singles* * *sɛ̃pl
1.
1) ( facile)c'est (bien) simple, il ne fait plus rien — he simply doesn't do anything any more
2) ( sans prétention) [repas, cérémonie, mariage, vie, goûts] simple; [décoration, intérieur] plain; [vêtement] simple, plain; [personne, air] unaffected, unpretentious3) ( modeste) [origines] modest4) ( ordinaire) [fonctionnaire, travailleur] ordinarymême en hiver, il n'est vêtu que d'une simple chemise — even in winter he only ou just wears a shirt
ce ne sera qu'une simple formalité/vérification — it will be a mere formality/a simple check
réduire quelque chose à sa plus simple expression — to reduce something to a minimum, to pare something down to basics
5) ( peu intelligent) [personne] simple6) Chimie, Botanique simple7) Linguistique [passé, futur] simple8) ( non multiple) [cornet de glace, nœud] single
2.
nom masculin1) ( dans un calcul)2) Sportsimple dames/messieurs — ladies'/men's singles (pl)
* * *sɛ̃pl1. adj1) (pas compliqué) (personne, méthode, chose) simple2) (non multiple) single3) (avant le nom) (= ordinaire)2. nm1) TENNIS (= match)2)3. simples nmplMÉDECINE medicinal plants* * *A adj1 ( facile) [problème, question, situation, idée] simple, straightforward; [choix, moyen, façon, explication, calcul] simple; son raisonnement est très simple his/her reasoning is very simple; je veux des phrases simples mais correctes I want simple but correct sentences; la situation est loin d'être simple the situation is far from (being) simple ou straightforward; c'est (bien) simple, il ne fait plus rien he simply doesn't do anything any more; pourquoi faire simple quand on peut faire compliqué? iron why not make life even more difficult for yourself?;2 ( sans prétention) [repas, cérémonie, mariage, vie, goûts] simple; [décoration, intérieur] plain; [vêtement] simple, plain; [personne, air] unaffected, unpretentious; elle portait une jupe toute simple she was wearing a very simple ou plain skirt; elle est simple et naturelle she's unaffected and natural; il est resté très simple malgré son succès he's remained very unpretentious in spite of his success;4 ( ordinaire) [avertissement, remarque] mere; [fonctionnaire, travailleur] ordinary; c'est une simple question d'honneur/de bon sens it's simply ou purely a question of honourGB/of common sense; un simple tour de clé suffit just one turn of the key does it; il est simple garçon de café/employé du bureau he's just a waiter in a café/a clerk; il l'a mis KO d'un simple coup de poing he knocked him out with a single blow; même en hiver, il n'est vêtu que d'une simple chemise even in winter he only ou just wears a shirt; pour la simple raison que for the simple reason that; le simple fait de poser la question the mere fact of asking the question; par simple curiosité out of pure curiosity; sur simple présentation du passeport simply on presentation of one's passport; ce ne sera qu'une simple formalité/vérification it will be a mere formality/a simple check; réduire qch à sa plus simple expression to reduce sth to a minimum;5 ( peu intelligent) [personne] simple; il est gentil mais un peu simple he's nice but a bit simple;7 Ling [passé, futur] simple;8 ( non multiple) [cornet de glace, nœud] single.B nm1 ( dans un calcul) le prix varie du simple au double the price can turn out to be twice as high;simple d'esprit simple-minded; c'est un or il est simple d'esprit he's simple-minded; simple soldat private.[sɛ̃pl] adjectifc'est très simple à utiliser it's very easy ou simple to usec'est une simple question d'argent it's simply ou only a matter of moneypour la simple raison que... for the simple reason that...vous aurez une démonstration gratuite sur simple appel all you need do is (to) ou simply phone this number for a free demonstrationce n'est qu'une simple formalité it's merely a ou it's a mere formality————————[sɛ̃pl] nom masculin1. [ce qui est facile]2. [proportion]simple messieurs/dames men's/ladies' singles————————simples nom masculin plurielmedicinal herbs ou plantssimple d'esprit nom masculinsimple d'esprit locution adjectivale -
5 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
-
6 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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7 quarte
четверка
Группа, скрученная из четырех изолированных жил.
[ ГОСТ 15845-80]
четверка
-
[IEV number 151-12-40]EN
quad
in telecommunications, uniform line consisting of four insulated conductors twisted together
NOTE – A quad may consist either of two twisted pairs twisted together (multiple-twin quad), or of four conductors twisted about a common axis (star quad or spiral four).
[IEV number 151-12-40]FR
quarte, f
en télécommunication, ligne uniforme constituée de quatre conducteurs isolés les uns des autres et torsadés
NOTE – Une quarte peut être constituée soit de deux paires torsadées elles-mêmes torsadées ensemble (quarte à paires combinables ou quarte D.M.), soit de quatre conducteurs torsadés autour d'un axe commun (quarte en étoile).
[IEV number 151-12-40]Тематики
- кабели, провода...
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > quarte
См. также в других словарях:
Common multiple — Common Com mon, a. [Compar. {Commoner}; superl. {Commonest}.] [OE. commun, comon, OF. comun, F. commun, fr. L. communis; com + munis ready to be of service; cf. Skr. mi to make fast, set up, build, Goth. gamains common, G. gemein, and E. mean low … The Collaborative International Dictionary of English
common multiple — Multiple Mul ti*ple, n. (Math.) A quantity containing another quantity an integral number of times without a remainder. [1913 Webster] Note: A {common multiple} of two or more numbers contains each of them a number of times exactly; thus, 24 is a … The Collaborative International Dictionary of English
common multiple — n. Math. a number or quantity evenly divisible by each element of a given set [12 is a common multiple of the set 2, 3, 4, 6] … English World dictionary
common multiple — UK / US noun [countable] Word forms common multiple : singular common multiple plural common multiples maths a number that can be divided exactly by two or more other numbers. 12 is a common multiple of 2, 3, and 4 … English dictionary
common multiple — /kɒmən ˈmʌltəpəl/ (say komuhn multuhpuhl) noun Mathematics an integer divisible by two or more given integers. The least common multiple (or lowest common multiple) is the smallest common multiple of a set of integers …
common multiple — noun Date: circa 1823 a multiple of each of two or more numbers or expressions < 90 is a common multiple of 6 and 10 > … New Collegiate Dictionary
common multiple — com′mon mul′tiple n. math. a number that is a multiple of all the numbers of a given set: 36 is a common multiple of 2, 3, and 4[/ex] • Etymology: 1885–90 … From formal English to slang
common multiple — Math. a number that is a multiple of all the numbers of a given set. [1885 90] * * * … Universalium
common multiple — noun an integer that is a multiple of two or more other integers • Hypernyms: ↑integer, ↑whole number … Useful english dictionary
least common multiple — Multiple Mul ti*ple, n. (Math.) A quantity containing another quantity an integral number of times without a remainder. [1913 Webster] Note: A {common multiple} of two or more numbers contains each of them a number of times exactly; thus, 24 is a … The Collaborative International Dictionary of English
common multiple — noun A number which is the result of multiplying two or more whole numbers together … Wiktionary
