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1 dry one-minute power-frequency withstand voltage test
dry one-minute power-frequency withstand voltage test ( dry one-minute power-frequency withstand voltage testing) HSP Einminuten-50-Hz-Stehspannungsprüfung f (im trockenen Zustand)English-German dictionary of Electrical Engineering and Electronics > dry one-minute power-frequency withstand voltage test
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2 dry short-duration power-frequency withstand voltage test
dry short-duration power-frequency withstand voltage test HSP Kurzzeit-Wechselspannungs-Stehspannungsprüfung f (im trockenen Zustand)English-German dictionary of Electrical Engineering and Electronics > dry short-duration power-frequency withstand voltage test
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3 длительный допустимый ток
- Strombelastbarkeit, f
- 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
Русско-немецкий словарь нормативно-технической терминологии > длительный допустимый ток
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4 wind
* -
5 топка с твёрдым шлакоудалением
adjpower. Trockenfeuerung (íà îñíîâàíèè íåì.-àíãë. ïåðåâîäà â ñëîâàðå www.gerdic.de - dry furnace)Универсальный русско-немецкий словарь > топка с твёрдым шлакоудалением
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6 day
noun1) Tag, derall day [long] — den ganzen Tag [lang]
take all day — (fig.) eine Ewigkeit brauchen
all day and every day — tagaus, tagein
to this day, from that day to this — bis zum heutigen Tag
for two days — zwei Tage [lang]
what's the day or what day is it today? — welcher Tag ist heute?
twice a day — zweimal täglich od. am Tag
in a day/two days — (within) in od. an einem Tag/in zwei Tagen
[on] the day after/before — am Tag danach/davor
[the] next/[on] the following/[on] the previous day — am nächsten/folgenden/vorhergehenden Tag
the day before yesterday/after tomorrow — vorgestern/übermorgen
from this/that day [on] — von heute an/von diesem Tag an
one of these [fine] days — eines [schönen] Tages
some day — eines Tages; irgendwann einmal
day by day, from day to day — von Tag zu Tag
day in day out — tagaus, tagein
call it a day — (end work) Feierabend machen; (more generally) Schluss machen
at the end of the day — (fig.) letzten Endes
it's not my day — ich habe [heute] einen schlechten Tag
in the days when... — zu der Zeit, als...
in those days — damals; zu jener Zeit
have seen/known better days — bessere Tage gesehen/gekannt haben
in one's day — zu seiner Zeit; (during lifetime) in seinem Leben
every dog has its day — jeder hat einmal seine Chance
it has had its day — es hat ausgedient (ugs.)
3) (victory)* * *[dei] 1. noun1) (the period from sunrise to sunset: She worked all day; The days are warm but the nights are cold.) der Tag2) (a part of this period eg that part spent at work: How long is your working day?; The school day ends at 3 o'clock; I see him every day.) der Tag3) (the period of twenty-four hours from one midnight to the next: How many days are in the month of September?) der Tag4) ((often in plural) the period of, or of the greatest activity, influence, strength etc of (something or someone): in my grandfather's day; in the days of steam-power.) die Tage (pl.)•- academic.ru/18551/daybreak">daybreak- day-dream 2. verbShe often day-dreams.) mit offenen Augen träumen- daylight- day school
- daytime
- call it a day
- day by day
- day in
- day out
- make someone's day
- one day
- some day
- the other day* * *[deɪ]nmy birthday is ten \days from now heute in zehn Tagen habe ich Geburtstagwhat a \day! was für ein Tag!you don't look a \day over forty Sie sehen kein bisschen älter als vierzig auswe're expecting the response any \day now die Antwort kann jetzt jeden Tag kommentoday is not my \day heute ist nicht mein Tagtoday of all \days ausgerechnet heutefor a few \days auf ein paar Tage, für einige Tagein a few \days[' time] in einigen [o in ein paar] Tagenfrom one \day to the other von einem Tag auf den anderenone \day eines Tagesto be one of those \days einer dieser unglückseligen Tage seinthe other \day neulich, vor einigen Tagensome \day irgendwann [einmal]\day in, \day out tagaus, tageinfrom this \day forth von heute anfrom that \day on[wards] von dem Tag anthe \day after tomorrow übermorgenthe \day before yesterday vorgestern\day after \day Tag für Tag, tagtäglich\day by \day Tag für Tagby the \day von Tag zu Tagfrom \day to \day von Tag zu Tagto the \day auf den Tag genauto this \day bis heutehe works three \days on, two \days off er arbeitet drei Tage und hat dann zwei Tage freiI have a full \day tomorrow morgen ist mein Tag randvoll mit Terminen, morgen habe ich einen anstrengenden Tagworking \day Arbeitstag mall \day den ganzen Tagto work an eight-hour \day acht Stunden am Tag arbeitento take a \day off einen Tag freinehmenall \day [long] den ganzen Tag [über [o lang]]\day and night Tag und Nachta sunny/wet \day ein sonniger/regnerischer Tagby \day tagsüber, während des Tagesthose were the \days das waren noch Zeitento have seen better \days schon bessere Tage [o Zeiten] gesehen habenin the old \days früherin the good old \days in der guten alten Zeitto have had one's \day seine [beste] Zeit gehabt habenin the \days before/of/when... zur Zeit vor/des/, als...in those \days damalsin/since sb's \day zu/seit jds Zeitthings have quite changed since my \day seit meiner Zeit hat sich einiges verändertin my younger/student \days... als ich noch jung/Student war,...in this \day and age heutzutageof the \day Tages-the news of the \day die Tagesnachrichten [o Nachrichten von heute6. (life)▪ sb's \days pl jds Leben nther \days are numbered ihre Tage sind gezähltto end one's \days in poverty sein Leben [o geh seine Tage] in Armut beschließenin all my [born] \days in meinem ganzen Lebenuntil my/her dying \day bis an mein/ihr Lebensende\day of Atonement [jüdisches] Versöhnungsfestthe \day of Judg[e]ment der Jüngste Tag8.▶ any \day jederzeit▶ back in the \day AM (sl) in der Vergangenheit▶ the big \day der große Tag▶ to call it a \day Schluss machen [für heute]▶ at the end of the \day (in the final analysis) letzten Endes; (finally, eventually) schließlich, zum Schluss▶ to make sb's \day jds Tag retten▶ to name the \day den Hochzeitstermin festsetzen, den Tag der Hochzeit festlegen▶ to be like night and \day wie Tag und Nacht sein▶ sb's \days [as sth] are numbered jds Tage [als etw] sind gezählt▶ from \day one von Anfang an, vom ersten Tag an▶ to pass the time of \day plaudern, SÜDD, ÖSTERR, SCHWEIZ a. plauschen▶ to be all in a \day's work zum Alltag gehören* * *[deɪ]n1) Tag mit will arrive any day now — es muss jeden Tag kommen
what day is it today? — welcher Tag ist heute?, was haben wir heute?
the day after/before, the following/previous day — am Tag danach/zuvor, am (darauf)folgenden/vorhergehenden Tag
this day week ( Brit inf ) — heute in acht Tagen (inf)
one day we went swimming, and the next... — einen Tag gingen wir schwimmen, und den nächsten...
one of these days — irgendwann (einmal), eines Tages
day in, day out — tagein, tagaus
day after day — Tag für Tag, tagtäglich
day by day — jeden Tag, täglich
I remember it to this day — daran erinnere ich mich noch heute
to work day and night —
good day! (= goodbye) (the) day is done (liter) — guten Tag! auf Wiedersehen! der Tag ist vorüber
some time during the day — irgendwann im Laufe des Tages
have a nice day! — viel Spaß!; ( esp US, said by storekeeper etc ) schönen Tag noch!
did you have a good day at the office? —
to have a good/bad day — einen guten/schlechten Tag haben
what a day! (terrible) — so ein fürchterlicher Tag!; (lovely) so ein herrlicher Tag!
on a wet/dry day — an einem regnerischen/trockenen Tag
to work an eight-hour day — einen Achtstundentag haben, acht Stunden am Tag arbeiten
See:→ make2)(period of time: often pl)
these days — heute, heutzutagein days to come — künftig, in künftigen Zeiten or Tagen (geh)
in Queen Victoria's day, in the days of Queen Victoria — zu Königin Viktorias Zeiten
it's early days yet —
he/this material has seen better days — er/dieser Stoff hat (auch) schon bessere Zeiten or Tage gesehen
3)(with poss adj
= lifetime, best time) famous in her day — in ihrer Zeit berühmt4) no plto lose/save the day — den Kampf verlieren/retten
* * *day [deı] s1. Tag m (Ggs Nacht):it is broad day es ist heller Tag;before day vor Tagesanbruch;a) taghell,good day! bes obs guten Tag!2. Tag m (Zeitraum):three days from London drei Tage(reisen) von London entfernt;one-day eintägig;work a four-day week vier Tage in der Woche arbeiten;five-day week Fünftagewoche f;open 7 days per week täglich geöffnet;I haven’t got all day umg ich hab nicht den ganzen Tag Zeit;(as) happy as the day is long wunschlos glücklich;3. (bestimmter) Tag:till the day of his death bis zu seinem Todestag;since the day dot umg seit einer Ewigkeit;4. Empfangs-, Besuchstag mday of delivery Liefertermin, -tag;keep one’s day obs pünktlich seinb) SPORT Spieltag m6. meist pl (Lebens)Zeit f, Zeiten pl, Tage pl:in my young days in meinen Jugendtagen;in those days in jenen Tagen, damals;in the days of old vorzeiten, in alten Zeiten, einst;end one’s days seine Tage beschließen, sterben;all the days of one’s life sein ganzes Leben lang;she was the best actress of her day ihrer Zeit;a) das Tanzen habe ich aufgegeben,b) mit dem Tanzen geht es bei mir nicht mehrin our day zu unserer Zeit;every dog has his day (Sprichwort) jedem lacht einmal das Glück;have had one’s day sich überlebt haben, am Ende sein;he has had his day seine beste Zeit ist vorüber;the machine has had its day die Maschine hat ausgedient;those were the days! das waren noch Zeiten!8. ARCH Öffnung f, Lichte f (eines Fensters etc)a) tags darauf, am nächsten oder folgenden Tag,b) der nächste Tag;(day and) day about einen um den andern Tag, jeden zweiten Tag;day and night Tag und Nacht arbeiten etc;any day jeden Tag;any day (of the week) umg jederzeit;a) tags zuvor,b) der vorhergehende Tag;it was days before he came es vergingen oder es dauerte Tage, ehe er kam;by day, during the day bei Tag(e);a) tageweise,b) im Tagelohn arbeiten;day by day (tag)täglich, Tag für Tag, jeden Tag wieder;call it a day umg (für heute) Schluss machen;let’s call it a day! Feierabend!, Schluss für heute!;a) den Sieg davontragen,b) fig die Oberhand gewinnen;lose the day den Kampf verlieren;fall on evil days ins Unglück geraten;a) von Tag zu Tag, zusehends,b) von einem Tag zum anderen;day in, day out tagaus, tagein; immerfort;ask sb the time of day jemanden nach der Uhrzeit fragen;give sb the time of day jemandem guten Tag sagen;know the time of day wissen, was die Glocke geschlagen hat; Bescheid wissen;live for the day sorglos in den Tag hinein leben;that made my day umg damit war der Tag für mich gerettet;save the day die Lage retten;(in) these days, in this day and age heutzutage;one of these (fine) days demnächst, nächstens (einmal), eines schönen Tages;this day week bes Bra) heute in einer Woche,b) heute vor einer Woche;to this day bis auf den heutigen Tag;to a day auf den Tag genaud. abk1. date2. daughter3. day4. deceased5. denarius, denarii pl, = penny, pence pl7. died* * *noun1) Tag, derall day [long] — den ganzen Tag [lang]
take all day — (fig.) eine Ewigkeit brauchen
all day and every day — tagaus, tagein
to this day, from that day to this — bis zum heutigen Tag
for two days — zwei Tage [lang]
what's the day or what day is it today? — welcher Tag ist heute?
twice a day — zweimal täglich od. am Tag
in a day/two days — (within) in od. an einem Tag/in zwei Tagen
[on] the day after/before — am Tag danach/davor
[the] next/[on] the following/[on] the previous day — am nächsten/folgenden/vorhergehenden Tag
the day before yesterday/after tomorrow — vorgestern/übermorgen
from this/that day [on] — von heute an/von diesem Tag an
one of these [fine] days — eines [schönen] Tages
some day — eines Tages; irgendwann einmal
day by day, from day to day — von Tag zu Tag
day in day out — tagaus, tagein
call it a day — (end work) Feierabend machen; (more generally) Schluss machen
at the end of the day — (fig.) letzten Endes
it's not my day — ich habe [heute] einen schlechten Tag
2) in sing. or pl. (period)in the days when... — zu der Zeit, als...
in those days — damals; zu jener Zeit
have seen/known better days — bessere Tage gesehen/gekannt haben
in one's day — zu seiner Zeit; (during lifetime) in seinem Leben
it has had its day — es hat ausgedient (ugs.)
3) (victory)win or carry the day — den Sieg davontragen
* * *n.Tag -e m. -
7 кислотные осадки
кислотные осадки
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
acid deposition
A type of pollution which washes out of the atmosphere as dilute sulphuric and nitric acids. It tends to be a regional rather than a global phenomenon, linked to particular industrial activities and meteorological conditions. It includes rain, more than normally acidic snow, mist, sleet, fog, gas and dry particles. It upsets the balance of nature, disrupting ecosystems, and destroys forests and woodlands, plants and crops; kills aquatic life by altering the chemical balance of lakes and rivers and corrodes building materials and fabrics. The pollutants are caused principally by discharges from power station chimneys of sulphur dioxide and nitrogen oxides released by burning fossil fuels, coal and oil. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > кислотные осадки
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