place dimensions

1) General subject: dimension

2) Automobile industry: figure out

3) Information technology: place dimensions

4) Automation: dimension (на чертеже)

. проверка на месте; удерживать на месте

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The principal dimensions of the arch may be dictated by the conditions at the site.

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These units will be assembled at site.

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The magnetic field was scanned with plugs in position.

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This is a method for in situ insulation.

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The units may be fitted to an existing valve in situ.

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We found a locally available supply of aggregate.

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On-the-site casting of concrete.

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An on-the-spot investigation was conducted.

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Towers are assembled on the spot by the erecting crew.

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An extensive theoretical analysis was followed by a detailed on-site measurement programme.

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 The fuel processing for the semiclean liquid fuel was off site; the low-Btu gas was produced on site.

 Manufacturers typically recommend on-site replacement of the entire assembly when servicing is necessary.

 The calibration was performed in situ, and under the same conditions of operation that are present when the tests are performed.

 A better procedure is to calibrate in-place or on-line so that stresses and connection errors are acknowledged and eliminated as random, unknown errors.

 So our analyst, with the help of a pool of experts, can frequently restore your terminals on the spot.

 The Model 572 permits sophisticated measurement and control functions, as well as on-the-spot calibration.

 All parameters, except smoke, are recorded locally and are transmitted to the data acquisition system.

1) General subject: of three dimensions, solid, space, third dimensional, third-dimensional, three D, three axis, three-D, tridimensional

2) Mathematics: trivariate

3) Information technology: 3-D, 3D

4) Oil: three dimensional, three-dimensional, threedimentional

5) Special term: T-D, three-axis, triaxial

6) Cartography: spatial

7) Geophysics: 3-dimensional

8) Automation: three-place (напр. о связях)

The differential problem (1) can be reduced to the form (2)

The asymptotic formula (1) follows from the above lemma

The differential equation (1) can be solved numerically

What is needed in the final result is a simple bound on quantities of the form (1)

The inequality (1) (артикль можно опустить) shows that $a>b$

The bound (estimate) (2) is not quite as good as the bound (estimate) (1)

If the norm of $A$ satisfies the restriction (1), then by the estimate (2) this term is less than unity

Since the spectral radius of $A$ belongs to the region (1), this iterative method converges for any initial guesses

The array (1) is called the matrix representing the linear transformation of $f$

It should be noted that the approximate inequality (1) bounds only the absolute error in $x$

The inequality (1) shows that...

The second step in our analysis is to substitute the forms (1) and (2) into this equation and simplify it by dropping higher-order terms

For small $ze$ the approximation (1) is very good indeed

A matrix of the form (1), in which some eigenvalue appears in more than one block, is called a derogatory matrix

The relation between limits and norms is suggested by the equivalence (1)

For this reason the matrix norm (1) is seldom encountered in the literature

To establish the inequality (1) from the definition (2)

Our conclusion agrees with the estimate (1)

The characterization is established in almost the same way as the results of Theorem 1, except that the relations (1) and (2) take place in the eigenvalue-eigenvector relation...

This vector satisfies the differential equation (1)

The Euclidean vector norm (2) satisfies the properties (1)

The bound (1) ensures only that these elements are small compared with the largest element of $A$

There is some terminology associated with the system (1) and the matrix equation (2)

A unique solution expressible in the form (1) restricts the dimensions of $A$

The factorization (1) is called the $LU$-factorization

It is very uncommon for the condition (1) to be violated

The relation (1) guarantees that the computed solution gives very small residual

This conclusion follows from the assumptions (1) and (2)

The factor (1) introduced in relation (2) is now equal to 2

The inequalities (1) are still adequate

We use this result without explicitly referring to the restriction (1)

 

НКУ, стойкие к механическому воздействию электрической дуги
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[Интент]

Параллельные тексты EN-RU

Assemblies mechanically capable of withstanding the electric arc (passive protection)

The switchboards which take constructional precautions suitable to the containment of the arc and to the successive outlet of the exhausted gases belong to this type of assemblies.

Two are the peculiar characteristics of these types of switchgear:
• reinforced mechanical frame able to withstand the stresses (overpressures) caused by internal arcing;
• creation inside the assembly of a preferential path for the discharge of the hot gases generated by arcing.
Both characteristics are indispensable to satisfy the safety requirements for the operator and the installation established by the Document IEC 61641.

As a consequence, the manufacturers take design measures to prevent the accidental opening of the doors (or their perforation) due to the pressure wave generated by the arc.

Besides, also the instruments which can be positioned on the doors must be able to withstand an overpressure of about 1bar (=1kg/cm2) without being ejected and projected outside the switchboard.

The thermal consequences of arcing (exhausted gases at high temperature) are then limited by designing the inside of the switchgear so that the outlet of gases takes place in the top part (over 2 m) and not at lower heights which might be potentially dangerous for the operator.

It is evident that each opening of significant dimensions on the doors might constitute a vent for the gases and result dangerous for the operator; therefore such openings are usually avoided in this type of switchgear.

[ABB]

НКУ, стойкие к механическому воздействию электрической дуги (пассивная защита)

К данному типу НКУ относятся такие устройства, конструкция которых предусматривает противостояние механическому воздействию электрической дуги и обеспечивает выхлоп образующихся газов.

В НКУ указанного типа используются два специальных конструктивных решения:
• усиленный каркас, способный противостоять нагрузке (избыточному давлению) возникающему при воздействии электрической дуги внутри НКУ;
• установленный внутри НКУ периферийный канала для выпуска горячих газов, образующихся в процессе горения дуги.
Согласно документу МЭК 61641 для удовлетворения требований безопасности оператора и электроустановки наличие обоих конструктивных решений является обязательным условием.

В результате изготовители используют конструктивные решения, направленные на предотвращение случайного открытия дверей (или их отверстий) при возникновении волны избыточного давления создаваемого электрической дугой.

Кроме того, приборы, размещаемые на дверях должны выдерживать избыточное давление, равное приблизительно 1 бар (1 кг/см2) и оставаться при этом на своих местах (не выдвигаться из комплектного устройства наружу).

Газы, возникающие при горении дуги, имеют высокую температуру.
Конструкция НКУ должна обеспечивать выход газов в верхней части (на высоте более 2 м) и не допускать выход газа в нижней части, поскольку это опасно для оператора.

Совершенно очевидно, что каждое достаточно большое отверстие в дверях шкафа может пропускать газы, и это опасно для оператора.
Поэтому, в НКУ рассматриваемого типа такие отверстия обычно отсутствуют.

[Перевод Интент]

Тематики

• НКУ (шкафы, пульты,...)

EN

• assembly mechanically capable of withstanding the electric arc