-
1 Bergdrossel
—1. LAT Zoothera monticola ( Vigors)2. RUS горный земляной дрозд m3. ENG greater long-billed thrush, large brown thrush4. DEU Bergdrossel f5. FRA —FÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Bergdrossel
-
2 7090
1. LAT Zoothera monticola ( Vigors)2. RUS горный земляной дрозд m3. ENG greater long-billed thrush, large brown thrush4. DEU Bergdrossel f5. FRA —FÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > 7090
-
3 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
Немецко-русский словарь нормативно-технической терминологии > Dauerstrombelastbarkeit, f
-
4 Strombelastbarkeit, 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
Немецко-русский словарь нормативно-технической терминологии > Strombelastbarkeit, f
-
5 Kaschmir-Buschsänger
—1. LAT Bradypterus major ( Brooks)2. RUS длинноклювая пестрогрудка f, длинноклювая камышовка f3. ENG large-billed bush warbler, large-billed scrub warbler4. DEU Kaschmir-Buschsänger m, Langschnabel-Buschsänger m5. FRA bouscarle f à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Kaschmir-Buschsänger
-
6 Langschnabel-Buschsänger
—1. LAT Bradypterus major ( Brooks)2. RUS длинноклювая пестрогрудка f, длинноклювая камышовка f3. ENG large-billed bush warbler, large-billed scrub warbler4. DEU Kaschmir-Buschsänger m, Langschnabel-Buschsänger m5. FRA bouscarle f à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Langschnabel-Buschsänger
-
7 7547
1. LAT Bradypterus major ( Brooks)2. RUS длинноклювая пестрогрудка f, длинноклювая камышовка f3. ENG large-billed bush warbler, large-billed scrub warbler4. DEU Kaschmir-Buschsänger m, Langschnabel-Buschsänger m5. FRA bouscarle f à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > 7547
-
8 Horsfieldnachtschwalbe
—1. LAT Caprimulgus macrurus ( Horsfield)2. RUS козодой m Хорсфильда3. ENG long-tailed [large-tailed, white-tailed] nightjar4. DEU Horsfieldnachtschwalbe f5. FRA engoulevent m de HorsfieldFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Horsfieldnachtschwalbe
-
9 Langschnabelsäbler
—1. LAT Pomatorhinus hypoleucos ( Blyth)2. RUS большая кривоклювая тимелия f3. ENG large scimitar babbler4. DEU Riesensäbler m, Langschnabelsäbler m5. FRA pomatorhin m à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Langschnabelsäbler
-
10 Riesensäbler
—1. LAT Pomatorhinus hypoleucos ( Blyth)2. RUS большая кривоклювая тимелия f3. ENG large scimitar babbler4. DEU Riesensäbler m, Langschnabelsäbler m5. FRA pomatorhin m à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > Riesensäbler
-
11 Nashornfisch
—1. LAT Naso unicornis (Forsskål)2. RUS однорогая рыба-носорог f, настоящий носач m3. ENG nosefish, large [long-snouted, brown, blue-spined] unicornfish4. DEU Nashornfisch m5. FRA nason m brun [à éperons bleus]FÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN > Nashornfisch
-
12 Schleimkopf, Zehnfingriger
—1. LAT Beryx decadactylus Cuvier2. RUS высокотелый [красный] берикс m, берикс-альфонсо m3. ENG long-finned beryx, broad alfonsino, red bream, Cuvier’s berycid fish, wideside alfonsino4. DEU Zehnfinger-Schleimfisch m, Zehnfingriger Schleimkopf m5. FRA béryx m commun [rouge], dorade f rose, béryx m largeFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN > Schleimkopf, Zehnfingriger
-
13 Schwarzspitzenhai, großer atlantischer
—2. RUS короткопёрая серая акула f3. ENG spinner [gray sharp-nosed, long-nosed, black-finned, large black-tipped] shark5. FRA requin m tisserandFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN > Schwarzspitzenhai, großer atlantischer
-
14 Zehnfinger-Schleimfisch
—1. LAT Beryx decadactylus Cuvier2. RUS высокотелый [красный] берикс m, берикс-альфонсо m3. ENG long-finned beryx, broad alfonsino, red bream, Cuvier’s berycid fish, wideside alfonsino4. DEU Zehnfinger-Schleimfisch m, Zehnfingriger Schleimkopf m5. FRA béryx m commun [rouge], dorade f rose, béryx m largeFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN > Zehnfinger-Schleimfisch
-
15 Großohr-Gleitbilch
1. LAT Idiurus macrotis Miller2. RUS длинноухий шипохвост m3. ENG long-eared [large-eared] small flying squirrel4. DEU Großohr-Gleitbilch m5. FRA anomalure m nain à longues oreillesFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN > Großohr-Gleitbilch
-
16 3208
1. LAT Caprimulgus macrurus ( Horsfield)2. RUS козодой m Хорсфильда3. ENG long-tailed [large-tailed, white-tailed] nightjar4. DEU Horsfieldnachtschwalbe f5. FRA engoulevent m de HorsfieldFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > 3208
-
17 7320
1. LAT Pomatorhinus hypoleucos ( Blyth)2. RUS большая кривоклювая тимелия f3. ENG large scimitar babbler4. DEU Riesensäbler m, Langschnabelsäbler m5. FRA pomatorhin m à long becFÜNFSPRACHIGES WÖRTERBUCH DER TIERISCHEN NAMEN — VÖGEL > 7320
-
18 385
2. RUS короткопёрая серая акула f3. ENG spinner [gray sharp-nosed, long-nosed, black-finned, large black-tipped] shark5. FRA requin m tisserand -
19 5722
1. LAT Beryx decadactylus Cuvier2. RUS высокотелый [красный] берикс m, берикс-альфонсо m3. ENG long-finned beryx, broad alfonsino, red bream, Cuvier’s berycid fish, wideside alfonsino4. DEU Zehnfinger-Schleimfisch m, Zehnfingriger Schleimkopf m5. FRA béryx m commun [rouge], dorade f rose, béryx m large -
20 9756
1. LAT Naso unicornis (Forsskål)2. RUS однорогая рыба-носорог f, настоящий носач m3. ENG nosefish, large [long-snouted, brown, blue-spined] unicornfish4. DEU Nashornfisch m5. FRA nason m brun [à éperons bleus]
- 1
- 2
См. также в других словарях:
En long et en large, en long, en large et en travers — ● En long et en large, en long, en large et en travers en tous sens ; sous tous les aspects … Encyclopédie Universelle
large — [ larʒ ] adj., n. m. et adv. • XIe ; lat. largus « abondant; généreux », a remplacé latus, à cause de longus « long » I ♦ Adj. 1 ♦ Qui a une étendue supérieure à la moyenne dans le sens de la largeur. Une large avenue. Chapeau à larges bords.… … Encyclopédie Universelle
long — long, longue [ lɔ̃, lɔ̃g ] adj., n. m. et adv. • Xe temporel; lat. longus I ♦ Adj. A ♦ (1080 lonc) dans l espace 1 ♦ (Av. le nom) Qui a une étendue supérieure à la moyenne dans le sens de la longueur. ⇒ grand. Une longue tige. Un long fil. De… … Encyclopédie Universelle
long — long, ongue (lon ; lon gh ; le g devant une consonne ne se prononce pas : un lon chemin ; devant une voyelle ou une h muette il se lie et se prononce comme un k ; un lon k espoir ; au pluriel, l s se lie : les lon z espoirs) adj. 1° Qui s étend … Dictionnaire de la Langue Française d'Émile Littré
long — LONG, Longue. adj. Il se dit d un corps consideré seulement dans l extension qu il a d un bout à l autre. Un champ long & estroit. ce jardin est long, plus long que large. un baston long de tant de pieds. ce chemin est bien long. le cours du… … Dictionnaire de l'Académie française
Long-tailed — may refer to:Ichthyology* Long tailed river stingray, freshwater stingray * Long tailed thresher shark, thresher shark inhabiting tropical and temperate waters worldwideMammology* Greater Long tailed Hamster, major crop eating rodent that resides … Wikipedia
Long-billed — may refer to:* Long billed Black Cockatoo, cockatoo endemic to south western Australia * Long billed Corella, cockatoo native to Australia * Long billed Curlew, very large shorebird * Long billed Dowitcher, medium sized shorebird * Long billed… … Wikipedia
long — Long, Longus, Oblongus, Productus. Long temps devant, Multo ante. Long temps apres, Multo post. Il s est teu long temps, Multum tacuit. Fort long, Perlongus, Praelongus. Fort long et haut, Procerus. Long d un pied et demy, Longum sesquipede,… … Thresor de la langue françoyse
LARGE — adj. des deux genres Il se dit D un corps considéré dans l extension qu il a d un de ses côtés à l autre, et par opposition à Long ou à Étroit. Ce champ, ce jardin est large, plus long que large. Un chemin large. La rivière est plus large en cet… … Dictionnaire de l'Academie Francaise, 7eme edition (1835)
large — (lar j ) adj. 1° Ample, étendu, par une dérivation facile du latin largus qui signifie copieux, abondant, considérable. Une large base. Il tombait de larges gouttes de pluie. • Quoi ? se peut il, monsieur, qu avec l air d homme sage, Et cette … Dictionnaire de la Langue Française d'Émile Littré
LARGE — adj. des deux genres Il se dit d’un Corps considéré dans l’extension qu’il a d’un de ses côtés à l’autre, et par opposition à Long ou à étroit. Ce champ, ce jardin est plus long que large. Un chemin large. La rivière est plus large en cet endroit … Dictionnaire de l'Academie Francaise, 8eme edition (1935)