must be allowed for

Smoking is not allowed. — Курить воспрещается.

Admission is seldom allowed to outsiders. — Посторонних сюда обычно не допускают.

This is allowed by the law. — Это разрешается законом.

He allowed himself no meat. — Он не позволял себе мяса.

We allowed the children to go to the park. — Мы разрешили детям пойти погулять в парк.

to allow smb. a free passage — разрешить кому-л. бесплатный проезд

They are allowed an hour for lunch. — Обеденный перерыв у них длится час.

The children are not allowed in until the school bell rings, whatever the weather. — Какая бы ни была погода детям не разрешается входить в школу, пока не прозвенит звонок.

The prisoners are allowed out for half an hour's exercise each day. — Заключенным разрешается получасовая прогулка каждый день.

to allow of some alteration — разрешать, допускать изменения

to allow of interpreting the facts in two different ways — допускать двоякое толкование фактов

The matter allows of no delay. — Дело не терпит отлагательства.

The school committee allowed a sum of money to each child for clothing. — Школьный комитет выдал каждому ребёнку определённую сумму денег на одежду.

The citizens were compelled to allow his great abilities. — Граждане были принуждены признать его большие способности.

She tacitly allows of his future visits. — Она молчаливо соглашается, чтобы он и дальше приходил.

I allow a great deal for the inconstancy of mankind. — Я делаю большую скидку на человеческое непостоянство.

to allow for delays — допускать, предусматривать опоздание

You must allow for some mistakes. — Вы должны учесть некоторые ошибки.

We allowed for the difference in age. — Мы должны сделать скидку на разницу в возрасте.

You must allow for shrinkage. — Мы должны сделать поправку на усадку.

to allow smb. a discount — предоставлять кому-л. скидку

It had been allowed for law. — Это было признано законом.

Allow me! — Разрешите!

we have allowed for twenty people — мы были готовы встретить, принять двадцать человек

smoking is not allowed кури́ть воспреща́ется

I allow him £100 a year я даю́ ему́ по 100 фу́нтов сте́рлингов в год

you must allow for some mistakes вы должны́ уче́сть не́которые оши́бки

I cannot allow of such an excuse не могу́ приня́ть тако́го извине́ния

I allow that I was wrong признаю́, что был непра́в

this gate allows access to the garden че́рез э́ти воро́та мо́жно пройти́ в сад

allow me! разреши́те!

we have allowed for twenty people мы бы́ли гото́вы встре́тить, приня́ть два́дцать челове́к

to come out of soak - протрезветь

to soak bread in milk - мочить хлеб в молоке

to soak dirty clothes in water - замачивать грязное бельё

to soak the dirt out - отмочить загрязнённое место /грязное пятно/

the dye must be allowed to soak in - краске надо дать впитаться

to soak oneself in smth. - впитывать что-л., погружаться во что-л.

to soak oneself in the sunshine - жариться на солнце

to soak oneself in history [in art] - погрузиться /с головой уйти/ в изучение истории [искусства]

to be soaked to the skin - промокнуть насквозь /до нитки/

don't stand out there; you'll be soaked through - не стой во дворе, ты промокнешь насквозь

the rain has soaked through the roof - дождь просочился сквозь крышу

the idea soaked into him - мысль наконец дошла до него

to soak tourists - обдирать туристов

I was soaked for that mistake - мне попало за эту ошибку

They may interfere in elections by the use of corrupt means to bribe or intimidate the electors. — Они могут повлиять на исход выборов, используя средства коррупции, чтобы подкупить или запугать избирателей.

You mustn't allow them to interfere with your business. — Ты не должен позволять им вмешиваться в твои дела.

Nothing must be allowed to interfere with our plans for the weekend. — Ничто не должно помешать нашим планам на выходные.

The interests of two republics didn't interfere. — Интересы двух республик не противоречили друг другу.

ATTRIBUTES:

one-time discount — единовременная [разовая\] скидка

special discount — специальная скидка

extra discount — дополнительная скидка

high discount — высокая скидка

low discount — низкая скидка

COMBS:

discount in the amount of— скидка в сумме

At the purchase of 6-10 titles you will obtain the discount in the amount of 5%.

discount of $125, $125 discount — скидка в размере 125 долл.

10% discount, discount of 10% — скидка в размере 10%, десятипроцентная скидка

1% discount for cash — скидка 1% за расчет наличными

15% discount for quantity purchases — 15-процентная скидка за покупку в большом количестве

less discount of 5% — со сидкой в 5%, за вычетом 5%

A discount of up to 40% may apply to Physical Damage Coverage for your boat, if the boat is less than 11 years old.

a discount of 10 to 40 percent — скидка (в размере) от 10% до 40%

a discount (of) between 10% and 20% — скидка (в размере) от 10% до 20%, скидка между 10% и 20%

discount on [below, to, off, from\] — скидка с (цены, тарифной ставки)

50% discount below the normal retail price — 50% скидка с обычной розничной цены

You can get 50% discount off the regular ticket price!

Click here to order this book at a discount from the regular list price.

discount on ticket price — скидка с цены билетов

discount on retail price — скидка с розничной цены

discount on (smth.) — скидка на (что-л.)

Members will receive special discounts on all products. — Участники получат специальные скидки на все товары.

special discount to students, special students discounts — специальные скидки для студентов, специальные скидки студентам, специальные студенческие скидки

50% discount for children under 12 — 50% скидка для детей в возрасте до 12 лет

to give [to grant, to allow\] a discount — предоставить скидку

Discounts are given for quantity purchases.

First, they commit all participants to grant discounts of the same type to buyers who meet the same conditions of eligibility.

The producer usually establishes a list price and then allows discounts from it to various types of intermediate customers.

to offer a discount — предлагать скидку

Later in the century, as competition for customers increased, some booksellers offered discounts of 20 percent and more.

to get [to receive, to obtain\] a discount — получить скидку

Club members get special discount off the normal rates. — Члены клуба получают специальную скидку с обычных тарифов.

He received cash discount of 3%. — Он получил скидку в размере 3% за оплату наличными.

to earn a discount — получить [заслужить, заработать\] скидку

When purchases must be placed within a specified period to earn a discount, the prospective contractor must indicate the required time period.

to claim a discount — требовать скидку

Those who purchase for cash are allowed a discount of 2%, while those who pay within one month can claim a discount of 1%.

to ask for a discount — просить [требовать\] скидку, обращаться за скидкой

If you're going to pay cash, ask for a discount.

to negotiate a discount — договориться о скидке

It could be very useful to be able to negotiate a discount for cash if you are buying luxury items like a fur coat or an expensive piece of jewellery.

to be subject to a discount — подлежать скидке

Large volume orders may be subject to a discount. — Крупные заказы могут подлежать скидке. [По крупным заказам может предоставляться скидка.\]

to qualify for a discount — иметь право на скидку; получить право на скидку; давать право на скидку

To qualify for discount all orders must be received by 30th June. — Чтобы иметь право на скидку, все заказы должны быть получены до 30 июня.

to be eligible for [to be entitled to\] a discount — иметь право на скидку

Find out if you are entitled to a discount. — Выясните, имеете ли вы право на скидку.

to lose a discount — терять скидку, терять право на скидку

This means that you can make 1 claim in any year or 2 claims in any 3-year period, and you won't lose the discount earned for your previous years of safe driving. — Это означает, что вы можете предъявить одно требование в течение любого года или два требования в течение любого трехлетнего периода, и вы не потеряете скидку, заработанную за предыдущие года безопасного вождения.

to calculate discount — рассчитывать скидку

To find the sale price of the item, you calculate the discount and subtract the discount from the original price.

to reduce/to increase discount — уменьшать/увеличивать скидку

ThyssenKrupp Nirosta reduces cash discount.

Under the Local Government Act 2003, all District Councils have been allowed to reduce their Council Tax discount on second homes from 50% to 10%.

American Airlines also has increased its discount from 21 percent to 22 percent on all domestic fares and international full fares.

They've increased the tax discount on the house.

ATTRIBUTES:

high discount — высокий дисконт

low discount — низкий дисконт

COMBS:

discount in the amount of— дисконт в сумме

discount of $125, $125 discount — дисконт в размере 125 долл.

As a result, X treats the loan as having original issue discount in the amount of $130000.

10% discount, discount of 10% — дисконт в размере 10%, десятипроцентный дисконт

For example, if a $1000 par bond was bought at a discount of $900, at maturity there would be a $100 gain.

a discount of 10 to 40 percent — дисконт (в размере) от 10% до 40%

a discount (of) between 10% and 20% — скидка (в размере) от 10% до 20%, скидка между 10% и 20%

discount on [below, to, off, from\] — дисконт к (цене, номиналу), дисконт с [от\] (цены, номинала)

Coupons are sold at a discount to maturity value.

discount on municipal bonds — дисконт по муниципальным облигациям

discount on notes payable — дисконты по векселям к оплате

discount on notes receivable — дисконты по векселям к получению

to amortize discount — амортизировать дисконт

to amortize bond discount — амортизировать дисконт по облигациям

The Company amortizes any discount or premium as part of interest expense on the related debt using the effective interest method.

to calculate discount — рассчитывать дисконт

Although the issuer will calculate original issue discount, if any, based on its determination of the accrual periods, a bondholder may, subject to some restrictions, elect other accrual periods.

discount security — ценная бумага с дисконтом

All taxable discount securities, including Corporate and Government Bonds, Federal STRIPs, Eurobonds, and Taxable Municipal securities.

The shop discounted goods. — Магазин сделал скидку на товары.

to discount from [off\] price — сделать скидку с цены

to discount (by) 10% — делать скидку в размере 10%

Companies discount their goods by 10%-75% only to sell more volume. — Компании предоставляют скидку на свои товары в размере 10-75% [компании снижают цену своих товаров на 10-75%\] только для того, чтобы увеличить объем продаж.

If an item has not sold within two weeks the store discounts the item by 25% for the third week, 50% for the fourth week, and 75% for the fifth week. — Если предмет не продается в течении двух недель, то в течение третьей недели предмет предлагается со скидкой в 25%, в течение четвертой — со скидкой 50%, а в течение пятой — со скидкой 75%.

All items were discounted about 20% from the suggested list prices. — Цена всех товаров была снижена на 20% по сравнению с рекомендованной прейскурантной ценой.

to discount price — делать скидку с цены

The company discounted prices on its products. — Компания сделала скидку с цены на свои товары.

to discount fare — делать скидку с тарифа

United discounts the fare by 50%. — "Юнайтед" делает скидку с тарифа в размере 50%.

The one-way fares are now discounted 15% off regular fares. — Стоимость проезда в один конец в настоящее время снижена на 15% по сравнению с обычными тарифами.

This interest rate is discounted from the published bank standard variable rate for an agreed period from the start of the mortgage. — Эта процентная ставка снижена по сравнению с опубликованной стандартной плавающей процентной ставкой банка на оговоренный период, считая от начала действия ипотечного кредита.

discounted goods — дисконтные товары

discounted price — цена со скидкой [с дисконтом\], дисконтная цена

the bank will discount the bill — банк учтет вексель

to discount at the rate of 10% — учитывать по ставке 10%

In the same way, circumstances often forced discount houses themselves to discount fine trade bills at the rate for fine bank bills. — Точно также, обстоятельства часто вынуждают сами дисконтные дома учитывать первоклассные торговые векселя по ставке, установленной для первоклассных банковских векселей.

The Federal Reserve was given the right to discount “eligible paper” for member banks, that is lend money to the banks on the basis of the commercial paper arising from loan transactions with their customers. — Федеральной резервной системе было предоставлено право учитывать "приемлемые бумаги" для банков-членов, т. е. давать банкам деньги взаймы на базе коммерческих бумаг, возникающих в связи с кредитными операциями с их клиентами.

to discount the bill at a bank — учитывать долговое обязательство в банке

to discount the note at 10% — учитывать долговое обязательство под 10%

The company discounted the note at a bank at 10%. — Компания учла долговое обязательство в банке под 10%.

If the vendor receives a note, he may discount it at the bank. — Если торговец получает простой вексель, он может учесть его в банке.

discounted bill — учтенный вексель

to get a bill discounted — учесть вексель, произвести учет векселя

to discount the loan — предоставлять дисконтный заем, делать заем дисконтным

to discount cash flows — дисконтировать денежный поток

to discount to present — приводить к настоящему времени

to discount to present value — приводить к текущей стоимости

to discount at a rate of 10% — дисконтировать по ставке 10%

to discount cash flows at a rate — дисконтировать денежные потоки по ставке

to discount expected value at risky rate — дисконтировать ожидаемую стоимость по рисковой ставке

Discount future cash flows to the present using the firm's cost of capital. — Приведите будущие денежные потоки к текущей стоимости, используя стоимость капитала фирмы.

To adjust for the time value of money, we discounted future costs to present value. — Чтобы осуществить корректировку на временную стоимость денег, мы привели будущие затраты к текущей стоимости.

We discount future cash flows by an interest rate that has been adjusted for risk. — Мы дисконтируем будущие денежные потоки, используя процентную ставку, скорректированную на риск.

The taxpayer must continue to discount the unpaid losses attributable to proportional reinsurance from pre-1988 accident years using the discount factors that were used in determining tax reserves for the 1987 tax year. — Налогоплательщик должен продолжать дисконтировать неоплаченные убытки, относящиеся к пропорциональному перестрахованию за годы убытка, предшествующие 1988 г., используя коэффициенты дисконтирования, которые применялись при определении налоговых резервов на 1987 налоговый год.

When comparing projects with different risk levels, it is best to discount each project's cash flows at its own discount rate and then compare the NPVs. — При сравнении проектов с разным уровнем риска, лучше всего произвести дисконтирование [продисконтировать\] денежные потоки каждого проекта по своей собственной ставке дисконтирования и затем сравнить чистую приведенную стоимость.

discounted cash flow — дисконтированный [приведенный\] денежный поток

discounted earnings — дисконтированные доходы

discounted value — дисконтированная стоимость

discounted payback period — дисконтированный срок [период\] окупаемости

discounted game — игра с дисконтированием

to discount smb's opinion — игнорировать чье-л. мнение

They discount my opinion. — Они не принимают в расчет мое мнение.

We had already discounted the theory that they were involved. — Мы уже оставили идею об их причастности.

By stressing one factor, each theory discounts the others. — Выделяя один фактор, каждая теория оставляет без внимания остальные.

Democratic theory discounts the notion that allocation of scarce resources is the result of natural forces. — Демократическая теория игнорирует представление о том, что распределение редких ресурсов является результатом действия естественных сил.

Knowing his political bias they discounted most of his story. — Зная о его политических пристрастиях, они сомневались в правдивости большей части его истории.

Many people discount the value of statistical analysis. — Многие люди недооценивают статистический анализ.

the stock market has already discounted the good news — фондовый рынок уже учел хорошие новости

Many traders don't realize the news they hear and read has, in many cases, already been discounted by the market. — Многие трейдеры не осознают, что новости, о которых они услышали или прочитали, уже были учтены рынком.

Technology stocks discounted a lot of bad news from abroad. — Акции технологических компаний отреагировали на обилие плохих новостей из-за границы.

The bear market ends when at least most of the bad news is finally discounted by the market. — "Медвежий" рынок заканчивается, когда, по крайней мере, большая часть из плохих новостей наконец учитывается рынком.

In the United States, the stock market double discounts expected inflation, first through long term bond yields and second through relative stock prices. — В Соединенных Штатах, фондовый рынок дважды учитывает ожидаемую инфляцию, во-первых, в доходности долгосрочных облигаций, а во-вторых, в ценах на соответствующие акции.

These stock prices are discounting anticipated massive increases in profits for the S&P 500 companies in the future. — Цены акций учитывают ожидаемый в будущем массовый рост прибылей компаний, включаемых в расчет индекса "Стандард энд Пурз 500".

Today’s prices are discounting all future events, not only today’s news. — Сегодняшние цены учитывают все будущие события, а не только сегодняшние новости.

to allow smb. to do smth. - позволять кому-л. делать что-л.

to be allowed to do smth. - иметь разрешение делать что-л.

she is not allowed out after dark - ей не разрешают выходить из дому после наступления темноты

to allow oneself (to do) smth. - позволять себе (сделать) что-л.

she allowed herself no sweets - она старалась не есть конфет

will you allow me to use your pen? - можно мне взять вашу ручку?

perhaps I may be allowed to speak now - теперь позвольте мне сказать несколько слов /выступить/

she allowed her imagination full play - она дала волю своему воображению /своей фантазии/

to allow a door to remain open - забыть закрыть /затворить/ дверь, случайно оставить дверь открытой

to allow a cake to burn - сжечь пирог

to allow for other expenses [future development] - учитывать другие расходы [возможные события]

to allow an inch for shrinkage - припустить дюйм на усадку

to allow a gallon for leakage - скинуть галлон на утечку

it will take thirty minutes to get to the station, allowing for traffic delays - с учётом дорожных заторов /пробок/ путь до станции займёт тридцать минут

you must allow for his being ill - вы должны учесть /принять во внимание/, что он болен

the matter allows of no delay - дело не терпит отлагательства

the machine does not allow of rough treatment - с этой машиной нельзя так неосторожно обращаться

evidence that allows of only one conclusion - данные, на основе которых можно сделать только один вывод

this gate allows access to the garden - через эту калитку можно пройти в сад

the prize allows me to buy a motorcycle - на премию я могу купить себе мотоцикл

as soon as circumstances allow - как только позволят обстоятельства

to allow smth. regularly [lavishly, intermittently] - выплачивать что-л. регулярно [щедро, нерегулярно]

to allow smb. spending money - выдавать кому-л. деньги на мелкие расходы

how much money does your father allow you for books? - сколько (денег) даёт тебе отец на книги?

they allow me one afternoon a week - мне предоставляют один свободный вечер в неделю

to allow a claim [an argument] - признавать (справедливым) требование [довод]

one must allow his cleverness /that he is clever/ - нужно признать, что он умён

to allow smb. a discount - давать /предоставлять/ кому-л. скидку

to allow a shilling in the pound - делать скидку в один шиллинг с каждого фунта

to allow as how - признавать, считать, полагать

Jones allows as how maybe Sherman is right - Джоунз говорит, что Шерман, возможно, прав

(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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• courant permanent admissible, m

длительная пропускная способность по току
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]

Тематики

• электротехника, основные понятия

EN

• continuous current-carrying capacity

(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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• 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 I_Z
[ 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

• длительно допустимый ток
• допустимый ток

EN

• ampacity (US)
• continuous current
• continuous current-carrying capacity
• current-carrying capacity

DE

• Dauerstrombelastbarkeit, f
• Strombelastbarkeit, f

FR

• courant admissible, m
• courant permanent admissible, m

непрерывный ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999]

Тематики

• электротехника, основные понятия

EN

• continuous current