-
1 grand
grand, e [gʀɑ̃, gʀɑ̃d]1. adjectivea. ( = de haute taille) tall• quand il sera grand [enfant] when he grows up• tu es grand/grande maintenant you're a big boy/girl nowd. (en nombre, en quantité) [vitesse, poids, valeur, puissance] great ; [nombre, quantité] large ; [famille] large, bige. ( = intense) [bruit, cri] loud ; [froid, chaleur] intense ; [vent] strong ; [danger, plaisir, pauvreté] greatf. ( = riche, puissant) [pays, firme, banquier, industriel] leadingg. ( = important) great ; [ville, travail] big• je t'annonce une grande nouvelle ! I've got some great news!h. ( = principal) main• la grande difficulté consiste à... the main difficulty lies in...i. (intensif) [travailleur, collectionneur, ami, rêveur] great ; [buveur, fumeur] heavy ; [mangeur] bigj. ( = remarquable) greatk. ( = de gala) [réception, dîner] grandl. ( = noble) [âme] noble ; [pensée, principe] loftym. ( = exagéré) faire de grandes phrases to voice high-flown sentimentsn. ( = beaucoup de) cela te fera (le plus) grand bien it'll do you the world of good• grand bien vous fasse ! much good may it do you!2. adverb3. masculine nouna. ( = élève) senior boyb. (terme d'affection) viens, mon grand come here, sonc. ( = personne puissante) les grands de ce monde men in high places4. feminine nouna. ( = élève) senior girl5. compounds━━━━━━━━━━━━━━━━━The grandes écoles are competitive-entrance higher education establishments where engineering, business administration and other subjects are taught to a very high standard. The most prestigious include « l'École Polytechnique » (engineering), the three « Écoles normales supérieures » (arts and sciences), « l'ÉNA » (the civil service college), and « HEC » (business administration).Pupils prepare for entrance to the grandes écoles after their « baccalauréat » in two years of « classes préparatoires ». → CLASSES PRÉPARATOIRES CONCOURS ÉCOLE NATIONALE D'ADMINISTRATION* * *
1.
grande gʀɑ̃, gʀɑ̃d adjectif1) ( de dimensions importantes) ( en hauteur) tall; (en longueur, durée) long; ( en largeur) wide; (en étendue, volume) big2) (nombreux, abondant) large, biglaver à grande eau — to wash [something] in plenty of running water [légumes]; to wash [something] down [sol]
3) ( à un degré élevé) [rêveur, collectionneur, ami] great; [tricheur, joueur] big; [buveur, fumeur] heavy4) ( important) [découverte, expédition, nouvelle] great; [date] important; [rôle] major; [problème, décision] bigla grande majorité — the great ou vast majority
5) ( principal) main6) ( de premier plan) [société, marque] leading7) (brillant, remarquable) [peintre, vin, cause] great; [cœur, âme] nobleLouis le Grand — Louis the Great; esprit
les grandes classes — École the senior forms GB, the upper classes US
9) ( qualifiant une mesure) [hauteur, longueur, distance, valeur] great; [pointure, quantité, étendue] large; [vitesse] high10) (extrême, fort) [bonté, amitié, danger, intérêt] great; [bruit] loud; [froid] severe; [chaleur] intense; [vent] strong, high; [tempête] big, violentà grands cris — loudly; cas, remède
11) ( de rang social élevé) [famille, nom] great12) ( grandiose) [réception, projet] grand13) ( emphatique) [mot] big; [phrase] high-soundinget voilà, tout de suite les grands mots — there you go, straight off the deep end
2.
3.
adverbe wideouvrir grand ses oreilles — fig to prick up one's ears
4.
nom masculinles cinq grands — Politique the Big Five
5.
en grand locution adverbialePhrasal Verbs:* * *ɡʀɑ̃, ɡʀɑ̃d grand, -e1. adj1) (= de haute taille) tallIl est grand pour son âge. — He's tall for his age.
2) (= aîné)C'est sa grande sœur. — She's his big sister.
3) (= adulte)Il est assez grand pour... — He's old enough to...
4) (= gros, vaste, large) big, large5) (importance, stature) greatC'est un grand ami à moi. — He's a great friend of mine.
les grandes lignes CHEMINS DE FER — the main lines
6) (ampleur, degré)les grands blessés; Les grands blessés ont été emmenés à l'hôpital en hélicoptère. — The severely injured were taken to hospital by helicopter.
7) (intensif)Ça te fera beaucoup de bien d'être au grand air. — It'll be very good for you to be out in the open air.
2. adv3. nm/f1) (= élève, enfant) big boy, big girlIl est chez les grands maintenant. — He's in the senior school now.
C'est une grande, elle peut y aller seule. — She's a big girl now, she can go on her own.
2) (= personnage)4. nm* * *A adj1 ( de dimensions importantes) ( en hauteur) [personne, arbre, tour, cierge] tall; (en longueur, durée) [bras, enjambée, promenade, voyage] long; ( en largeur) [angle, marge] wide; (en étendue, volume) [lac, ville, salle, trou, édifice, paquet] large, big; [tas, feu] big; ( démesuré) [pied, nez, bouche] big; un homme (très) grand a (very) tall man; un grand homme brun, un homme grand et brun a tall dark man; plus grand que nature larger than life; ouvrir de grands yeux to open one's eyes wide;2 (nombreux, abondant) [famille, foule] large, big; [fortune] large; grande braderie big sale; pas grand monde not many people; faire de grandes dépenses to spend a lot of money; il fait grand jour it's broad daylight; laver à grande eau to wash [sth] in plenty of running water [légumes]; to wash [sth] down [sol]; à grand renfort de publicité with much publicity;3 ( à un degré élevé) [rêveur, collectionneur, travailleur, ami, ennemi, pécheur] great; [tricheur, joueur, lâcheur, idiot] big; [buveur, fumeur] heavy; grand amateur de ballet great ballet lover; c'est un grand timide he's very shy; les grands malades very sick people; c'est un grand cardiaque he has a serious heart condition;4 ( important) [découverte, migration, expédition, événement, nouvelle, honneur] great; [date] important; [rôle] major; [problème, décision] big; ( principal) main; c'est un grand jour pour elle it's a big day for her; une grande partie de la maison a large part of the house; une grande partie des habitants many of the inhabitants; la grande majorité the great ou vast majority; ⇒ scène;5 ( principal) main; le grand escalier the main staircase; le grand problème/obstacle the main ou major problem/obstacle; les grands axes routiers the main ou trunk GB roads; les grands points du discours the main points of the speech; les grandes lignes d'une politique the broad lines of a policy;6 ( de premier plan) Écon, Pol [pays, société, industriel, marque] leading; les grandes industries the big industries;7 (brillant, remarquable) [peintre, œuvre, civilisation, vin, cause] great; [cœur, âme] noble; c'est un grand homme he's a great man; les grands écrivains great authors; un grand nom de la musique a great musician; un grand monsieur du théâtre a great gentleman of the stage; Louis/Pierre le Grand Louis/Peter the Great; les grands noms du cinéma/de la littérature indienne the big names of the cinema/of Indian literature; de grande classe [produit] high-class; [exploit] admirable; ⇒ esprit;8 ( âgé) [frère, sœur] elder; [élève] senior GB, older; ( adulte) grown-up; mon grand frère my elder brother; les grandes classes Scol the senior forms GB, the upper classes US; quand il sera grand when he grows up; mes enfants sont grands my children are quite old; une grande fille comme toi! a big girl like you!; 12 ans! tu es assez grand pour te débrouiller 12 years old! you're old enough to cope;9 ( qualifiant une mesure) [hauteur, longueur, distance, poids, valeur, âge] great; [dimensions, taille, pointure, quantité, nombre, étendue] large; [vitesse] high; [kilomètre, mois, heure] good; il est grand temps que tu partes it's high time you were off ou you went;10 (intense, extrême, fort) [bonté, lâcheté, pauvreté, amitié, chagrin, faim, danger, différence, intérêt] great; [bruit] great, loud; [froid] severe; [chaleur] intense; [vent] strong, high; [tempête] big, violent; avec grand plaisir with great ou much pleasure; dans le plus grand secret in great secrecy; d'une grande bêtise/timidité very ou extremely stupid/shy; à ma grande honte/surprise much to my shame/surprise; sans grand espoir/enthousiasme without much hope/enthusiasm; sans grande importance not very important; il n'y a pas grand mal à cela/à faire there isn't much harm in that/in doing; avoir grand faim/soif to be very hungry/thirsty; avoir grand besoin de to be badly in need of; ça te ferait le plus grand bien it would do you a world of good; à grands cris loudly; ⇒ cas, remède;11 ( de rang social élevé) [famille, nom] great; grande dame great lady; la grande bourgeoisie the upper middle class;12 ( grandiose) [réception] grand; grands projets grand designs; avoir grande allure, avoir grand air to look very impressive;13 ( emphatique) [mot] big; [phrase] high-sounding; un grand merci a big thank you; faire de grands gestes to wave one's arms about; et voilà, tout de suite les grands mots there you go, straight off the deep end.B nm,f1 ( enfant) big boy/girl; Scol senior GB ou older pupil; il a fait ça tout seul comme un grand he did it all by himself like a big boy; il fait le ménage comme un grand he does the housework like a grown-up; pour les grands et les petits for old and young alike;C adv wide; ouvrir grand la bouche to open one's mouth wide; ouvrir tout grand les bras to throw one's arms open; les fenêtres sont grand(es) ouvertes the windows are wide open; ouvrir la porte toute grande to open the door wide; ouvrir grand ses oreilles fig to prick up one's ears; ouvrir tout grand son cœur fig to open one's heart; les bottes chaussent grand the boots are large-fitting; leurs vêtements taillent grand their clothes are cut on the large side; voir grand fig to think big.D nm ( pays) big power; ( entreprise) leader, big name; les grands de ce monde the great and the good; Pol the world's leaders; les cinq grands Pol the Big Five; les grands de l'automobile the top car manufacturers; c'est un grand de la publicité he's big in advertising.E en grand loc adv [ouvrir] wide, completely; faire de l'élevage en grand to breed animals on a large scale; quand ils reçoivent, ils font les choses en grand when they entertain they do things on the grand scale or they really go to town○.grand argentier Hist royal treasurer; hum keeper of the nation's purse, Finance minister; le grand art alchemy; grand banditisme organized crime; grand bassin ( de piscine) main pool; Anat upper pelvis; grand cacatois main royal sail; grand caniche standard poodle; le grand capital Écon big money, big investors pl; grand commis de l'État top civil servant; grand coq de bruyère capercaillie; grand corbeau raven; grand couturier couturier; grand débutant absolute beginner; grand duc Zool eagle owl; grand écart Danse, Sport splits (sg); faire le grand écart to do the splits; le grand écran the big screen; grand électeur ( en France) elector who votes in the elections for the French Senate; ( aux États-Unis) presidential elector; grand ensemble high-density housing complex; la vie dans les grands ensembles high-rise living; grand d'Espagne Spanish grandee; grand foc outer jib; grand frais Météo moderate gale; grand hunier main topsail; grand hunier fixe lower main topsail; grand hunier volant upper main topsail; grand invalide civil, GIC civilian who is registered severely disabled; grand invalide de guerre, GIG Prot Soc ex-serviceman who is registered severely disabled; le grand large Naut the high seas (pl); grand magasin Comm department store; grand maître ( aux échecs) grand master; grand maître de l'ordre des Templiers Hist Grand Master of the Knights Templar; grand mât Naut mainmast; le grand monde high society; le Grand Nord Géog the Far North; Grand Œuvre Great Work; grand officier de la Légion d'Honneur high-ranking officer of the Legion of HonourGB; le Grand Orient the Grand Lodge of France; grand panda giant panda; Grand Pardon Day of Atonement; grand patron Méd senior consultant GB, head doctor US; grand perroquet Naut main topgallant sail; grand prêtre Relig, fig high priest; grand prix Courses Aut, Sport grand prix; le grand public the general public; Comm produit grand public consumer product; grand quart Naut six-hour watch; Grand quartier général, GQG Mil General Headquarters, GHQ; grand quotidien Presse big national daily; grand roque Jeux ( aux échecs) castling long; le Grand Siècle Hist the 17th century (in France); grand teint colourfastGB; grand tétras capercaillie; grand tourisme Courses Aut, Aut GT, gran turismo; le Grand Turc the Sultan; grand veneur Chasse master of the hounds; grande Armée Hist Grande Armée (Napoleon's army); grande Baie Australienne Géog Great Australian Bight; la grande banlieue the outer suburbs (pl); Grande Barrière (de Corail) Géog Great Barrier Reef; la grande bleue the sea; la grande cuisine Culin haute cuisine; grande distribution Écon volume retailing; grand école higher education institution; la Grande Guerre Hist the First World War; grande gueule○ loud mouth○; grande hune Naut maintop; la grande muette the army; la grande muraille de Chine Géog the Great Wall of China; grande personne grown-up, adult; la grande presse Presse the popular dailies (pl); grande puissance Pol superpower; grande roue ( de foire) big wheel GB, Ferris wheel US; grande série Comm mass production; fabriqué en grande série mass-produced; grande surface Comm supermarket; grandes eaux fountains; fig ( pleurs) waterworks; dès qu'on la gronde, ce sont les grandes eaux the minute you tell her off, she turns on the waterworks; grandes lignes Rail main train routes; grandes marées spring tides; grandes ondes Radio long wave (sg); Grandes Plaines Géog Great Plains; les grands blessés the seriously injured; grands corps de l'État Admin senior branches of the civil service; grands espaces Écol open spaces; grands fauves Zool big cats; grands fonds Naut ocean depths; les grands froids the cold of winter; Grands Lacs Géog Great Lakes; grands singes Zool great apes; ⇒ école, voyage.ⓘ Grande école A prestigious third-level institution where admission is usually by competitive entrance examination or concours. Places are much sought after as they are widely considered to guarantee more promising career prospects than the standard university institutions. Many grandes écoles specialize in particular disciplines or fields of study, e.g. ENA, Sciences Po, etc.( féminin grande) [grɑ̃, grɑ̃d] (devant nom masculin commençant par voyelle ou h muet [grɑ̃t]) adjectifA.[ASPECT QUANTITATIF]grand A/B/C capital A/B/Cune grande tour a high ou tall towerun grand fleuve a long ou big riveravoir de grands pieds to have big ou large feetmarcher à grands pas to walk with great ou long strides3. [d'un certain âge - être humain] big[aîné - frère, sœur] big4. [qui dure longtemps] long5. [intense, considérable] greatpendant les grandes chaleurs in high summer, in ou at the height of summerun grand incendie a major ou great firela grande majorité de the great ou vast majority ofils plongent à une grande profondeur they dive very deep ou to a great depth7. [entier]elle m'a fait attendre une grande heure/semaine she made me wait a good hour/a good week9. GÉOGRAPHIE10. ZOOLOGIEB.[ASPECT QUALITATIF]les grands problèmes de notre temps the main ou major ou key issues of our timece sont de grands amis they're great ou very good friendsles grands blessés/brûlés/invalides the seriously wounded/burned/disabled3. [puissant, influent - banque] top ; [ - industriel] top, leading, major ; [ - propriétaire, famille] important ; [ - personnage] great4. [dans une hiérarchie]les grands dignitaires du régime the leading ou important dignitaries of the regime5. [noble]avoir grand air ou grande allure to carry oneself well, to be imposing6. [généralementéreux]il a un grand cœur he's big-hearted, he has a big heart7. [exagéré] biggrands mots high-sounding words, high-flown language8. [fameux, reconnu] greatun grand journaliste a great ou top journalistil ne descend que dans les grands hôtels he only stays in the best hotels ou the most luxurious hotelsle grand film de la soirée tonight's big ou feature filmles grandes dates de l'histoire de France the great ou most significant dates in French history9. HISTOIRE10. [omnipotent, suprême] greatC.[EN INTENSIF]sans grand enthousiasme/intérêt without much enthusiasm/interestsa grande fierté, c'est son jardin he's very proud of ou he takes great pride in his gardenun grand merci à ta sœur lots of thanks to ou a big thank you to your sistercette cuisine a grand besoin d'être nettoyée this kitchen really needs ou is in dire need of a cleantoute la famille au grand complet the whole family, every single member of the familyjamais, au grand jamais je n'accepterai never in a million years will I acceptà sa grande surprise much to his surprise, to his great surprise————————, grande [grɑ̃, grɑ̃d] (devant nom masculin commençant par voyelle ou h muet [grɑ̃t]) nom masculin, nom féminin1. [enfant - d'un certain âge][en appellatif]merci mon grand! thanks, son!allons, ma grande, ne pleure pas! come on now, love, don't cry!comme un grand: je me débrouillerai tout seul, comme un grand/toute seule, comme une grande I'll manage on my own, like a big boy/a big girl[en appellatif]alors, ma grande, tu as pu te reposer un peu? well dear, did you manage to get some rest?[personne de grande taille]pour la photo, les grands se mettront derrière for the photo, tall people ou the taller people will stand at the back————————adverbe1. [vêtement]2. (locution)3. [largement]4. ART————————nom masculin1. PHILOSOPHIE → link=infiniment infiniment2. [entrepreneur, industriel]les grands de l'automobile the major ou leading car manufacturers————————grands nom masculin plurielÉCONOMIE & POLITIQUEles grands [les puissants] the rich (and powerful)les grands de ce monde the people in (positions of) power ou in high places————————en grand locution adverbiale[complètement] on a large scaleil faut aérer la maison en grand the house needs a thorough ou good airinggrande école nom féminingrand ensemble nom masculingrande surface nom fémininThe grandes écoles are relatively small and highly respected higher education establishments. Admission is usually only possible after two years of intensive preparatory studies and a competitive entrance examination. Most have close links with industry. The grandes écoles include l'École des hautes études commerciales or HEC (management and business), l'École polytechnique or l'X (engineering) and l'École normale supérieure (teacher training). -
2 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
-
3 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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4 espace
espace [εspas]1. masculine nouna. ( = dimension, place) space• avoir assez d'espace pour bouger/vivre to have enough room to move/live• espace disque [d'ordinateur] disk spaceb. ( = intervalle) space2. compounds* * *ɛspasnom masculin1) (place, cosmos) space3) ( sphère) arena4) ( zone) area5) ( intervalle) gap6) ( laps de temps)•Phrasal Verbs:* * *ɛspas nm1) ASTRONOMIE space2) (= zone) space3) (entre deux parties ou éléments: interstice, écart) space, gapIl y un espace à combler entre les plinthes et le plancher. — There is a gap that needs filling between the skirting board and the floor.
* * *A nm1 ( place) space; il manque d'espace dans son bureau he hasn't got enough space in his office; le canapé occupe beaucoup d'espace the sofa takes up a lot of space;2 ( lieu réservé à une activité) espace de loisirs/culturel leisure/arts complex; espace d'accueil reception area; notre émission est un espace de liberté our programmeGB provides a forum for free expression;3 ( sphère) arena; espace politique/international political/international arena;5 ( intervalle) gap; un espace de 5 cm a gap of 5 cm;6 ( laps de temps) en l'espace de in the space of; en l'espace de quelques minutes in the space of a few minutes; l'espace d'un instant for a moment; ils se sont aimés l'espace d'une nuit they were lovers for a night;7 Astron space; la conquête de l'espace the conquest of space; espace interstellaire interstellar space;8 Math space.B nf Imprim space.espace aérien Jur airspace; espace commercial Comm commercial space ¢; espace publicitaire Pub advertising space ¢; espace vert Écol open space; espace vital living space.I[ɛspas] nom fémininII[ɛspas] nom masculin1. [généralement, ASTRONOMIE]5. [lieu]7. AÉRONAUTIQUEdans l'espace de locution prépositionnelle,en l'espace de locution prépositionnelle[dans le temps] within (the space of)
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