-
1 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
-
2 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
-
3 Brief
Brief m 1. BÖRSE asked, offer price, price offered; 2. KOMM, V&M, RECHT letter instrument, deed, certificate (Urkunde)* * *m 1. < Börse> asked, offer price, price offered; 2. <Komm, V&M, Recht> letter Urkunde instrument, deed, certificate* * *Brief
letter, (Börse) paper, asked [price], sellers only, on offer;
• Brief angeboten (Börse) mainly sellers;
• Brief folgt letter to follow (following);
• in Beantwortung Ihres Briefes vom 19. dieses Monats in reply to your letter of the 19th;
• vorwiegend Brief (Börse) sellers over;
• Briefe correspondence;
• nicht abgeholter Brief unclaimed letter;
• schlecht adressierter Brief blind [letter] (sl.);
• anonymer Brief anonymous letter;
• zu spät aufgegebener Brief late letter;
• mit der Post beförderter Brief posted letter;
• chiffrierter Brief coded letter;
• doppelter Brief double letter;
• eigenhändiger Brief autograph letter;
• einfacher Brief single-rate letter;
• eingeschriebener Brief registered letter;
• fehlgeleiteter Brief miscarried letter;
• frankierter Brief [post-]paid (prepaid, stamped) letter, stamped envelope;
• ungenügend frankierter Brief short-paid letter;
• nicht freigemachter Brief unpaid letter;
• unsere früheren Briefe our previous communications;
• geschäftlicher Brief business letter;
• Ihr geschätzter Brief vom... your favo(u)r of...;
• geschlossener Brief closed letter;
• informeller Brief unbusinesslike letter;
• kurzer Brief a few lines;
• offener Brief open letter;
• persönlicher Brief personal (private) letter;
• portofreier Brief letter exempt from postage, frank;
• postlagernder Brief letter to be called for, caller’s (post-office box) letter, poste restante;
• unbehobener Brief unclaimed letter;
• unbestellbarer Brief dead (returned, blind, sl.) letter;
• undatierter Brief undated letter;
• unfrankierter Brief unpaid letter;
• unzustellbarer Brief returned (dead, unclaimed) letter, blind (sl.);
• verschlossener (versiegelter) Brief sealed letter;
• vertraulicher Brief confidential (personal) letter;
• vervielfältigte Briefe process letters;
• vorhergehende Briefe previous letters;
• vorrangig zugestellte Briefe first-class letter post;
• zurückgesandter Brief returned letter;
• Brief und Geld (Börse) sellers and buyers (Br.), asked and bid;
• mehr Brief als Geld more buyers than sellers, buyer’s market;
• Brief wegen Nichteinlösung eines Schecks (Bank) reference slip;
• Brief und Siegel sign and seal;
• Brief mit Wertangabe insured letter (Br.);
• Brief abheften to file a letter away;
• Brief abholen to call for a letter;
• Briefe alphabetisch ablegen to file letters in alphabetical order;
• Brief abschließen to bring a letter to a close;
• Brief wirkungsvoll abschließen to round off a letter;
• Brief absenden to send off (dispatch) a letter;
• Brief an j. adressieren to cover a letter to s. o.;
• alte Briefe aufbewahren to keep old letters;
• Brief aufgeben to post (dispatch, mail, US) a letter;
• Brief stenografisch aufnehmen to take down a letter;
• Brief aufreißen (aufschlitzen) to break open a letter;
• Brief aufsetzen to draw up (build) a letter;
• Brief aushändigen to hand s. o. a letter;
• Briefe aussortieren to sort out letters;
• Briefe austauschen to exchange letters, to correspond;
• Brief austragen to deliver a letter;
• Brief beantworten to answer (reply, respond) to a letter;
• Brief beginnen to head a letter;
• Brief bestätigen to acknowledge [receipt of] a letter, to confirm a letter;
• Brief datieren to date a letter;
• Briefe einordnen to sort out letters;
• Briefe einsammeln to collect the letters;
• Brief [in den Briefkasten] einwerfen to drop (post, Br.) a letter [into the mail box (US) (pillar box, Br.)];
• einem Brief entnehmen to understand from a letter;
• Brief erhalten to receive a letter;
• Brief für unzustellbar erklären to dead a letter;
• Menge Briefe erledigen to do a lot of correspondence;
• Brief expedieren to get a letter off;
• Brief freimachen (frankieren) to pay the postage;
• Brief zur Post geben to take a letter to the post (Br.), to post (mail, US) a letter;
• Brief als persönlich kennzeichnen to make a letter private;
• seinem Brief einen Zahlungsbefehl folgen lassen to follow up a letter with a summons;
• Brief durch Boten überbringen lassen to send a letter by hand;
• Brief ausfindig machen to trace (track down) a letter;
• Briefe nachsenden to forward letters to a new address;
• Brief öffnen to unseal a letter;
• Brief unberechtigt öffnen to break the seal of a letter;
• Briefe postieren to take letters to the post, to post (mail, US) letters;
• Brief an j. richten to direct a letter to s. o.;
• Brief an jds. Büroadresse schicken to direct a letter to s. one’s business address;
• Brief per Luftpost schicken to send a letter by airmail;
• jem. einen energischen Brief schreiben to write in strong terms to s. o.;
• Brief in ansprechender Form schreiben to give a letter an attractive look;
• Brief mit verstellter Handschrift schreiben to write a letter in a disguised hand;
• Brief des Inhalts schreiben to write a letter to the effect;
• Briefe sortieren to sort letters;
• sich auf einen Brief stützen to take one’s stand on a letter;
• Brief unterschlagen to suppress a letter;
• Brief verschließen to seal a letter;
• Brief vordatieren to date a letter ahead;
• Briefe wechseln to correspond;
• mit Briefen überflutet werden to be deluged with letters;
• Brief zustellen to deliver a letter;
• Briefabfertigung postal delivery, dispatch of mail (US), mail distribution (US);
• Briefabholfach letter (private) box;
• Briefabholung collection of letters;
• Briefablage letter file, filing of letters;
• formeller Briefabschluss formal close;
• Briefabschrift copy;
• Briefänderungen changes in a letter;
• Briefanfang opening of a letter;
• Briefannahme[stelle] (Post) receiving counter, mail drop (US);
• Brief- und Paketannahmestelle receiving house;
• Briefanordnung layout of a letter;
• Briefanschrift postal address;
• Briefaufgabe posting (mailing, US) a letter;
• Briefaufgabe per Einschreiben registration of a letter;
• Briefaufgabestempel date stamp, postmark;
• Briefaufschrift address of a letter;
• Briefausgabe postal delivery, delivery of letter[s];
• Briefausgang outgoing mail (US);
• Briefausgangsbuch letters dispatched book (Br.);
• Briefbeantwortung answer to a letter;
• Briefbeförderung carriage of letters;
• Briefbeilage enclosure;
• Briefbeileger envelope stiffener;
• Briefbeschwerer paperweight;
• Briefbeutel letterbag;
• Briefblock [writing] pad;
• Briefbogen notepaper, sheet of paper;
• Briefbombe letter bomb;
• Briefbote letter messenger (carrier, US), postman (Br.), mailman (US);
• Briefdatum date of a letter;
• Briefdrucksache circular (second-class) letter, surface printed papers (Br.);
• Briefdurchschlag behalten to keep a copy of a letter;
• Briefeingang incoming letters;
• Briefeingangsbuch letters received book (Br.);
• Briefeinlauf letters received;
• Briefeinwurf letter (pillar, Br.) box, mailbox (US), letter drop (US), posting of a letter;
• Briefempfang bestätigen to acknowledge [the receipt of] a letter;
• Briefentwurf draft [of a] letter;
• Brieffach pigeonhole, post-office box;
• Brieffaltmaschine letter-folding machine;
• in Briefform by letter;
• Briefgeheimnis verletzen to break the secrecy of a letter;
• Briefgrundschuld [etwa] unregistered land charge (Br.);
• Briefhülle envelope, cover, wrapper;
• Briefhülle mit Breitbandklappe open side;
• Briefhülle mit Schmalbandklappe open end;
• Briefhypothek [etwa] unregistered mortgage (Br.);
• Briefinhalt content (body) of a letter;
• Briefkarte letter (Br.) (folding, postal) card.
diktieren, Brief
to dictate a letter. -
4 Drucksachenbezugspreis
Drucksachenbezugspreis
subscription rate by surface mail;
• Drucksachenbriefmarke second-class stamp;
• Drucksachengebühr printed-paper rate (Br.), book postage (Br.);
• normale Drucksachengebühr surface mail printed paper full rate;
• Drucksachengebühr mit Luftpostaufschlag airmail printed paper rate (Br.);
• Drucksachenporto printed-paper rate (Br.), rate for printed matter, newspaper rate;
• Drucksachenpost bookpost (Br.), newspaper post, second- (third-) class mail (US);
• Drucksachentarif printed-paper rate (Br.);
• Drucksachentarif für Zeitungen newspaper rates;
• Drucksachenwerbung printed advertising;
• Drucksachenwerbung durch die Post direct mail advertising (US). -
5 Solarheizung
отопление на основе солнечной энергии
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
solar heating
A domestic or industrial heating system that makes direct use of solar energy. The simplest form consists of a collector through which a fluid is pumped. The circuit also contains some form of heat storage tank and an alternative energy source to provide energy when the sun is not shining. The collector usually consists of a black surface through which water is piped, the black surface being enclosed behind glass sheets to make use of the greenhouse effect. (Source: UVAROV)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Немецко-русский словарь нормативно-технической терминологии > Solarheizung
-
6 Oberflächenabfluss
Oberflächenabfluss m direct runoff, runoff, surface runoffDeutsch-Englisch Fachwörterbuch Architektur und Bauwesen > Oberflächenabfluss
-
7 die Post
- {mail} áo giáp, thư từ, bưu kiện, bưu phẩm, chuyển thư, bưu điện, xe thư - {post} cột trụ, vỉa cát kết dày, cột than chống, sở bưu điện, phòng bưu điện, hòm thư, trạm thư, người đưa thư, khổ giấy 50 x 40 cm, giấy viết thư khổ 50 x 40 cm, vị trí đứng gác, vị trí đóng quân - đồn bốt, quân đóng ở đồn, đồn, bốt, vị trí công tác, chức vụ, nhiệm vụ, trạm thông thương buôn bán trading post), chức vị chỉ huy một thuyền chiến = per Post {by mail}+ = mit der Post {by mail; by post}+ = zur Post geben {to mail; to post}+ = durch die Post {by mail}+ = auf die Post geben {to post}+ = Ist Post für mich da? {Is there any mail for me?}+ = mit der Post schicken {to post}+ = nicht zur Post gebracht {unposted}+ = die per Bahn beförderte Post {surface mail}+ = jemandem den Weg zur Post zeigen {to direct someone to the postoffice}+ = bring bitte diese Briefe zur Post {post these letters, please}+ -
8 Wettervorhersage
метеорологический прогноз
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
meteorological forecasting
A branch of science that studies the dynamics of the atmosphere and the direct effects of the atmosphere upon the Earth's surface, oceans and inhabitants, focusing particularly on weather and weather conditions. (Source: INP / NOA / EEN)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
прогнозирование погоды
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
weather forecasting
The act or process of predicting and highlighting meteorological conditions that are expected for a specific time period and for a specific area or portion of air space, by using objective models based on certain atmospheric parameters, along with the skill and experience of a meteorologist. (Source: FEM / AUS)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Немецко-русский словарь нормативно-технической терминологии > Wettervorhersage
См. также в других словарях:
Direct bonding — describes a wafer bonding process without any additional intermediate layers. The bonding process is based on chemical bonds between two surfaces of any material possible meeting numerous requirements.[1] These requirements are specified for the… … Wikipedia
Direct Part Marking — (DPM) is a process to permanently mark parts with a barcode. This is done to allow the tracking of parts through the full life cycle.The interpretation of permanent often depends on the context the part is used. In the aerospace industry an… … Wikipedia
Direct and indirect realism — Direct realism argues we perceive the world directly For representationalism in the arts, see Realism (visual arts). The question of direct or naïve realism, as opposed to indirect or representational realism, arises in the philosophy of… … Wikipedia
Direct digital manufacturing — Direct digital manufacturing, sometimes called additive, rapid, direct, instant, or on demand manufacturing, is a manufacturing process which creates physical parts directly from 3D CAD files or data using computer controlled additive and… … Wikipedia
Direct metal laser sintering — (DMLS) is an additive metal fabrication technology developed by EOS out of Munich, Germany, sometimes also referred to by the terms selective laser sintering (SLS) or selective laser melting (SLM). The process involves use of a 3D CAD model… … Wikipedia
Direct Matin — Pays France Langue Français Périodicité … Wikipédia en Français
Direct Matin Plus — Direct Matin Plus {{{nomorigine}}} Pays … Wikipédia en Français
Direct matin — Plus Direct Matin Plus {{{nomorigine}}} Pays … Wikipédia en Français
Direct matin plus — Direct Matin Plus {{{nomorigine}}} Pays … Wikipédia en Français
SURFACE (TRAITEMENTS DE) — On entend par «traitements de surface» toutes les opérations mécaniques, chimiques, électrochimiques ou physiques qui ont pour conséquence de modifier l’aspect ou la structure de la surface des matériaux, afin de l’adapter à des conditions… … Encyclopédie Universelle
Surface charge — is the electric charge present at an interface, for instance on the surface of a semiconductor material, or for example, on the surface of a protein in water.There are multiple factors generating surface charge. First of all, surface charge… … Wikipedia
