-
1 der Gleichstrom
- {continuous current} = der Gleichstrom (Elektrotechnik) {direct current}+ -
2 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
-
3 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
-
4 Dauerstrom
m <el> ■ continuous current; steady current; permanent current; persistent current; continuous load current -
5 Zündstrom
m ELEKTRON [im Thyristor] gate-trigger continuous current, gate-trigger continuous direct current, striking current -
6 Sperrgleichstrom der Diode
10. Постоянный обратный ток диода
D. Sperrgleichstrom der Diode
E. Reverse continuous current
F. Courant inverse continu
Iобр
-
Источник: ГОСТ 25529-82: Диоды полупроводниковые. Термины, определения и буквенные обозначения параметров оригинал документа
Немецко-русский словарь нормативно-технической терминологии > Sperrgleichstrom der Diode
-
7 Durchlassgleichstrom der Diode
7. Постоянный прямой ток диода
D. Durchlassgleichstrom der Diode
E. Forward continuous current
F. Courant direct continu
Iпр
-
Источник: ГОСТ 25529-82: Диоды полупроводниковые. Термины, определения и буквенные обозначения параметров оригинал документа
Немецко-русский словарь нормативно-технической терминологии > Durchlassgleichstrom der Diode
-
8 Grenzdauerstrom eines Ausgangskreises
предельный длительный ток выходной цепи электрического реле
Наибольшее значение тока, которое предварительно замкнутая или находящаяся в проводящем состоянии выходная цепь электрического реле способна выдерживать длительно в заданных условиях
[ ГОСТ 16022-83]Тематики
EN
DE
FR
113. Предельный длительный ток выходной цепи электрического реле
D. Grenzdauerstrom eines Ausgangskreises
Е. Limiting continuous current of an output circuit
F. Courant limite de service continu d’un circuit de sortie
Наибольшее значение тока, которое предварительно замкнутая или находящаяся в проводящем состоянии выходная цепь электрического реле способна выдерживать длительно в заданных условиях
Источник: ГОСТ 16022-83: Реле электрические. Термины и определения оригинал документа
Немецко-русский словарь нормативно-технической терминологии > Grenzdauerstrom eines Ausgangskreises
-
9 Z-Strom der Z-Diode
ток стабилизации стабилитрона
Iст
Iz
Значение постоянного тока, протекающего через стабилитрон в режиме стабилизации.
[ ГОСТ 25529-82]Тематики
Обобщающие термины
EN
DE
FR
82. Ток стабилизации стабилитрона
D. Z-Strom der Z-Diode
E. Continuous current within the working voltage range
F. Courant continu inverse pour la gamme des tensions de régulation
Iст
Значение постоянного тока, протекающего через стабилитрон в режиме стабилизации
Источник: ГОСТ 25529-82: Диоды полупроводниковые. Термины, определения и буквенные обозначения параметров оригинал документа
Немецко-русский словарь нормативно-технической терминологии > Z-Strom der Z-Diode
-
10 Zündstrom
m <el> (Thyristor) ■ gate trigger continuous current; gate trigger currentm <kfz.el> ■ ignition current; firing current -
11 Dauerstrom
-
12 Dauerstrombelastbarkeit
f <el> ■ continuous current ratingGerman-english technical dictionary > Dauerstrombelastbarkeit
-
13 Nenndauerstrom
m <el> ■ rated continuous current -
14 Konstantstrombetrieb
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Konstantstrombetrieb
-
15 Nenndauerstrom
Nenndauerstrom m rated [nominal] continuous currentDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Nenndauerstrom
-
16 Dauerstrom
mcontinuous current -
17 laufend
- {continuous} liên tục, liên tiếp, không dứt, không ngừng, tiến hành, duy trì - {current} hiện hành, đang lưu hành, phổ biến, thịnh hành, thông dụng, hiện thời, hiện nay, này - {instant} xảy ra ngay lập tức, sắp xảy ra, khẩn trương, cấp bách, gấp, ngay tức khắc, lập tức, ăn ngay được, uống ngay được, inst tháng này - {present} có mặt, hiện diện, hiện tại, nay, sẵn sàng, sẵn sàng giúp đỡ - {regular} đều đều, không thay đổi, thường lệ, cân đối, đều, đều đặn, trong biên chế, chuyên nghiệp, chính quy, hợp thức, có quy tắc, quy củ, đúng mực, đúng giờ giấc, đúng, thật, thật sự, hoàn toàn - không còn nghi ngờ gì nữa, ở tu viện, tu đạo - {running} chạy đang chạy, tiến hành trong lúc chạy, chảy, đang chảy, di động trượt đi, liền, đương thời -
18 laufend
I Part. Präs. laufenII Adj.3. (ständig) continuous; (regelmäßig) regular; (in Gang befindlich) ongoing; laufende Berichterstattung running commentary; laufende Nummer (serial) number; laufende Nummern consecutive numbers; laufende Wartung / Prüfung routine maintenance / check; laufender Meter 12,50 Euro 12.50 euros per met|re (Am. -er) from the piece4. WIRTS., Kredit: outstanding; (in Umlauf befindlich) in circulation; Patent: pending; laufende Kosten overheads, running costs; laufende Rechnung current account5. auf dem Laufenden sein be up to date ( über +Akk on), be in the picture (about); jemanden / sich auf dem Laufenden halten keep s.o. / o.s. informed ( oder posted), keep up with things; etw. aufs Laufende bringen bring s.th. up to date, update s.th.III Adv. (ständig) continually; (zunehmend) increasingly; laufend besser werden get better and better all the time, be continually improving; laufend zunehmen / abnehmen an Gewicht: be forever ( oder constantly) putting on / losing weight, put on / lose more and more weight; wir haben laufend zu tun there’s always plenty of work to do, there’s never any shortage of work* * *current; running* * *lau|fend1. adj attr(= ständig) Arbeiten, Ausgaben regular; Kredit outstanding; (= regelmäßig) Wartung routine; Monat, Jahr, Konto (form) currentláúfende Nummer — serial number; (von Konto) number
jdn auf dem Laufenden halten — to keep sb posted or up-to-date or informed
mit etw auf dem Laufenden sein — to be up-to-date on sth
See:→ Band2. advcontinually, constantly* * *1) (continuous: a running commentary on the football match.) running3) (of or in a series: serial numbers on banknotes.) serial* * *lau·fendI. adj attr\laufende Ausgaben fixed expenses\laufende Erträge current revenues\laufender Geschäftsbetrieb (Geschäft) day-to-day business; (Verwaltung) day-to-day running of a/the company\laufende Konten checking accounts\laufender Kredit open credit\laufende Kursfeststellung current prices2. (ständig) constant3.▶ jdn [über etw akk] auf dem L \laufenden halten to keep sb up-to-date [about [or on] sth] [or informed [about sth]]▶ auf dem L\laufenden sein [o bleiben] to be [or keep] up-to-date* * *1.die laufenden Arbeiten — the day-to-day or routine work sing.
2) (gegenwärtig) current <issue, year, month, etc.>3) (aufeinander folgend)zehn Euro der laufende Meter — ten euros a or per metre
4)auf dem laufenden sein/bleiben — be/keep or stay up-to-date or fully informed
2.jemanden auf dem laufenden halten — keep somebody up-to-date or informed
* * *B. adj1. Motor etc: running;mit laufendem Motor with the engine running2. (jetzig) current;laufenden Monats of this monthlaufende Berichterstattung running commentary;laufende Nummer (serial) number;laufende Nummern consecutive numbers;laufende Wartung/Prüfung routine maintenance/check;laufender Meter 12,50 Euro 12.50 euros per metre (US -er) from the piecelaufende Kosten overheads, running costs;laufende Rechnung current account5.auf dem Laufenden sein be up to date (über +akk on), be in the picture (about);jemanden/sich auf dem Laufenden halten keep sb/o.s. informed ( oder posted), keep up with things;etwas aufs Laufende bringen bring sth up to date, update sthlaufend besser werden get better and better all the time, be continually improving;laufend zunehmen/abnehmen an Gewicht: be forever ( oder constantly) putting on/losing weight, put on/lose more and more weight;wir haben laufend zu tun there’s always plenty of work to do, there’s never any shortage of work* * *1.Adjektiv; nicht präddie laufenden Arbeiten — the day-to-day or routine work sing.
2) (gegenwärtig) current <issue, year, month, etc.>zehn Euro der laufende Meter — ten euros a or per metre
4)auf dem laufenden sein/bleiben — be/keep or stay up-to-date or fully informed
2.jemanden auf dem laufenden halten — keep somebody up-to-date or informed
* * *adj.current adj.ongoing adj.running adj. adv.currently adv. -
19 laufend
laufend I adj GEN ongoing, standing • auf dem Laufenden GEN au fait, up-to-date • auf dem Laufenden halten ADMIN keep up to date, keep abreast of (Ablage) • auf dem Laufenden sein mit GEN be abreast of, be au fait with, be up-to-date on • jmdn. auf dem Laufenden halten GEN, KOMM keep sb up-to-date on, keep sb informed on, keep sb abreast of laufend II adv ADMIN constantly, continuously* * *adj < Geschäft> ongoing, standing ■ auf dem Laufenden < Geschäft> au fait, up-to-date ■ auf dem Laufenden halten < Verwalt> Ablage keep up to date, keep abreast of ■ auf dem Laufenden sein mit < Geschäft> be abreast of, be au fait with, be up-to-date on ■ jmdn. auf dem Laufenden halten <Geschäft, Komm> keep sb up-to-date on, keep sb informed on, keep sb abreast of* * *laufend
current, running (durchgehend) continuous, (aufeinander folgend) consecutive, (gültig) valid, in force, (Meter) run, (täglich) present, day-to-day, routine;
• laufend an der Verbesserung seiner Produkte arbeiten to be continuously working to improve one’s products;
• laufend ergänzen to keep up to date;
• laufend notieren to quote consecutively;
• laufenden Absatz finden to find a ready market;
• laufende Akzepte bills (notes) receivable (US);
• laufendes Angebot floating supply;
• laufender Auftrag standing order;
• laufende Ausgaben fixed expenses;
• laufender Bedarf current demand;
• laufender Beitrag periodic dues (subscription);
• laufende Betriebskosten current operating expenses;
• laufendes Einkommen regular income;
• laufende Emissionen outstanding issues;
• laufender Ertrag current yield;
• laufende Geschäfte regular (routine) business;
• laufende Geschäftskosten recurring cost (expenses);
• laufendes Jahr current (present) year;
• laufendes Konto continuing (running, open, US, drawing, US) account (US), account current;
• laufende Kosten fixed (standing, running) charges, current expenses, cost in carrying business;
• laufender Kredit open (standing) credit;
• laufender Meter running meter (US) (metre, Br.);
• laufende Nachfrage current demand;
• laufende Notierung ruling price, consecutive quotation;
• laufende Nummer serial (consecutive) number;
• laufende Police floating policy;
• laufende Rechnung account current, current (running) account, open account (US);
• in laufender Rechnung stehen to have a current account;
• laufende Revisionsarbeiten continuous audit;
• laufende Risiken pending risks;
• laufende Statistik der Industriezweige current industrial report (US);
• laufender Unterhaltsbetrag permanent alimony;
• laufende Verbindlichkeiten current liabilities;
• laufende Verpflichtungen running engagements;
• laufender Vertrag running (standing) contract;
• laufende Wartung routine maintenance;
• laufender Wechsel bill in circulation, unmatured bill;
• laufende Wechsel (Bilanz) bills (notes) receivable (US);
• gegenwärtig laufende Werbekampagne current advertising;
• laufende Zahlungen regular payments;
• laufende Zinsen running interest. -
20 Dauergleichstrom
Dauergleichstrom m continuous direct on-state current, continuous d.c. forward current (z. B. des Transistors)Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Dauergleichstrom
См. также в других словарях:
continuous current — Direct current Direct current (Elec.) (a) A current flowing in one direction only; distinguished from {alternating current}. When steady and not pulsating a direct current is often called a {continuous current}. (b) {A direct induced current}, or … The Collaborative International Dictionary of English
continuous current — nuolatinė srovė statusas T sritis fizika atitikmenys: angl. continuous current; direct current vok. Gleichstrom, m rus. постоянный ток, m pranc. courant continu, m … Fizikos terminų žodynas
Continuous Current Mode — (CCM, wörtlich etwa „kontinuierlich fließender Strom“, dt. „nicht lückender Betrieb“) ist ein Merkmal von Gleichstromstellern, getakteten Stromversorgungen, Schaltreglern und Schaltnetzteilen. Dabei wird während des normalen Betriebes der… … Deutsch Wikipedia
continuous current generator — nuolatinės srovės generatorius statusas T sritis automatika atitikmenys: angl. continuous current generator; direct current generator vok. Gleichstromgenerator, m rus. генератор постоянного тока, m pranc. génératrice de courant continu, f … Automatikos terminų žodynas
continuous-current generator — nuolatinės srovės generatorius statusas T sritis fizika atitikmenys: angl. continuous current generator; direct current generator vok. Gleichstromdynamo, m; Gleichstromgenerator, m rus. генератор постоянного тока, m pranc. génératrice de courant… … Fizikos terminų žodynas
continuous-current generator — nuolatinės srovės generatorius statusas T sritis Standartizacija ir metrologija apibrėžtis Generatorius, kuriantis nuolatinę elektros srovę. atitikmenys: angl. continuous current generator vok. Gleichstromdynamo, m; Gleichstromgenerator, m rus.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
continuous current — noun : direct current … Useful english dictionary
alternating-continuous-current converter — kintamosios srovės keitiklis nuolatine srove statusas T sritis automatika atitikmenys: angl. alternating continuous current converter; converter machine vok. Gleichrichter, m; Wechselstrom Gleichstrom Umformer, m rus. преобразователь переменного… … Automatikos terminų žodynas
alternating-continuous-current converter — kintamosios srovės keitiklis į nuolatinę srovę statusas T sritis radioelektronika atitikmenys: angl. alternating continuous current converter; converter machine vok. Wechselstrom Gleichstrom Umformer, m rus. преобразователь переменного тока в… … Radioelektronikos terminų žodynas
Continuous — Con*tin u*ous, a. [L. continuus, fr. continere to hold together. See {Continent}.] 1. Without break, cessation, or interruption; without intervening space or time; uninterrupted; unbroken; continual; unceasing; constant; continued; protracted;… … The Collaborative International Dictionary of English
Continuous brake — Continuous Con*tin u*ous, a. [L. continuus, fr. continere to hold together. See {Continent}.] 1. Without break, cessation, or interruption; without intervening space or time; uninterrupted; unbroken; continual; unceasing; constant; continued;… … The Collaborative International Dictionary of English
