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1 fundamental decomposition
Математика: фундаментальное разложениеУниверсальный англо-русский словарь > fundamental decomposition
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2 fundamental decomposition
English-Russian scientific dictionary > fundamental decomposition
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3 decomposition
1) декомпозиция; разбиение; разложение2) распад; разложение3) расщепление4) геол. химическое выветривание• -
4 фундаментальное разложение
Большой англо-русский и русско-английский словарь > фундаментальное разложение
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5 theorem
- analytical hierarchy theorem - arithmetical hierarchy theorem - closed range theorem - formally provable theorem - implicit function theorem - initial value theorem - integral representation theorem - local limit theorem - maximal ergodic theorem - mean value theorem - normal form theorem - ratio limit theorem - rational root theorem - second mean value theorem - theorem of consistency proofs - theorem of corresponding states - three line theorem - three series theorem - uniform convergence theorem - uniform ergodic theorem - uniform mean value theoremtheorem implies — из теоремы следует, что…
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6 matrix
pl matrices nounматрица frank of а matrix ранг m матрицыregression matrix матрица регрессионных коэффициентов, регрессионная матрица, матрица регрессииАнглийский-русский словарь по теории вероятностей, статистике и комбинаторике > matrix
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7 algorithm
1) алгоритм2) правило; процедура; метод•- adaptive algorithm
- Agarval-Cooley algorithm
- aim algorithm
- annealing algorithm
- asymmetric encryption algorithm
- autoregressive algorithm
- backoff algorithm
- back propagation of error algorithm
- batch algorithm
- Bellman-Ford algorithm
- best cost path algorithm
- bisection algorithm
- branch and bound algorithm - CART algorithm
- channel algorithm
- channel routing algorithm
- Cholesky algorithm
- classification and regression tree algorithm
- clustering algorithm
- Cochran-Orcutt algorithm
- compression algorithm
- conjugate directions algorithm
- conjugate gradients algorithm
- constructive algorithm
- contour following algorithm
- control algorithm
- convolution algorithm
- Cooley-Tuckey algorithm
- cryptographic algorithm
- deflation compression algorithm
- differential synthesis algorithm
- Diffie-Hellman algorithm
- digital signal processing algorithm
- digital signature algorithm
- Dijkstra algorithm
- distance vector algorithm
- DSP algorithm
- dynamic programming algorithm
- edge-tracking algorithm
- evolutionary algorithm
- exact embedding algorithm
- expansion algorithm
- fast algorithm
- fast convolution Agarval-Cooley algorithm
- fixed-weight algorithm
- Ford-Fulkerson algorithm
- fundamental algorithm
- fuzzy algorithm
- general algorithm - greedy algorithm
- Gummel's algorithm
- hashing algorithm
- heuristic algorithm
- ID3 algorithm
- identification algorithm
- initialization algorithm
- integer algorithm - iterative dichotomizer 3 algorithm
- k-means algorithm
- learning algorithm
- least frequently used algorithm
- least recently used algorithm
- Lee-Moore algorithm
- Lee algorithm
- Lee-type algorithm
- Lempel-Ziv algorithm
- Lempel-Ziv-Welch algorithm
- Levenberg-Marquardt algorithm
- LFU algorithm
- line-probe algorithm
- link state algorithm
- LU decomposition algorithm
- LZ algorithm
- LZW algorithm
- MacQueen's k-means algorithm
- McCulloch-Pitts algorithm
- memetic algorithm - min-cut algorithm - nested algorithm
- numerical algorithm
- Oja iterative algorithm
- on-line algorithm
- optimization algorithm
- ordering algorithm
- painter's algorithm
- parallel algorithm
- pattern classification algorithm
- pattern recognition algorithm
- pel-recursive estimation algorithm
- placement algorithm
- planning algorithm
- polynomial algorithm
- predictive algorithm
- preemptive algorithm
- Prim algorithm
- production rule based algorithm
- pruning algorithm
- pseudo least recently used algorithm
- quantum search algorithm
- quick-union algorithm
- quick-union algorithm with path compression
- Q-R-algorithm
- radix sorting algorithm
- randomized algorithm
- rank algorithm
- Read-Solomon cyclic redundancy compression algorithm
- recognition algorithm
- recurrent algorithm
- recursive algorithm
- resilient propagation algorithm - routing algorithm
- Rprop algorithm
- RSA algorithm
- scheduling algorithm
- search algorithm
- search network algorithm - self-organizing algorithm
- semi-numerical algorithm
- sequential algorithm - shortest path algorithm
- sieving algorithm
- simulated annealing training algorithm
- simulation algorithm
- smoothing algorithm
- software algorithm
- spanning tree algorithm
- spline algorithm
- splitting algorithm
- stack algorithm
- statistical algorithm
- stochastic algorithm
- supervised training algorithm
- symmetric encryption algorithm
- time-wheel algorithm
- training algorithm
- universal algorithm
- unsupervised training algorithm
- van der Waerden algorithm
- variational algorithm
- vector distance algorithm
- Viterbi algorithm
- VLSI algorithm
- weighted quick-union algorithm
- working algorithm -
8 algorithm
1) алгоритм2) правило; процедура; метод•- Agarval-Cooley algorithm
- aim algorithm
- algorithm of doubtful convergence
- annealing algorithm
- asymmetric encryption algorithm
- autoregressive algorithm
- back propagation of error algorithm
- backoff algorithm
- batch algorithm
- Bellman-Ford algorithm
- best cost path algorithm
- bisection algorithm
- branch and bound algorithm
- British Telecom Lempel-Ziv algorithm
- BTLZ algorithm
- CART algorithm
- channel algorithm
- channel routing algorithm
- Cholesky algorithm
- classification and regression tree algorithm
- clustering algorithm
- Cochran-Orcutt algorithm
- compression algorithm
- conjugate directions algorithm
- conjugate gradients algorithm
- constructive algorithm
- contour following algorithm
- control algorithm
- convolution algorithm
- Cooley-Tuckey algorithm
- cryptographic algorithm
- deflation compression algorithm
- differential synthesis algorithm
- Diffie-Hellman algorithm
- digital signal processing algorithm
- digital signature algorithm
- Dijkstra algorithm
- distance vector algorithm
- DSP algorithm
- dynamic programming algorithm
- edge-tracking algorithm
- evolutionary algorithm
- exact embedding algorithm
- expansion algorithm
- fast algorithm
- fast convolution Agarval-Cooley algorithm
- fixed-weight algorithm
- Ford-Fulkerson algorithm
- fundamental algorithm
- fuzzy algorithm
- general algorithm
- genetic algorithm
- graph search algorithm
- greedy algorithm
- Gummel's algorithm
- hashing algorithm
- heuristic algorithm
- ID3 algorithm
- identification algorithm
- initialization algorithm
- integer algorithm
- international data encryption algorithm
- iterative algorithm
- iterative dichotomizer 3 algorithm
- k-means algorithm
- learning algorithm
- least frequently used algorithm
- least recently used algorithm
- Lee-algorithm
- Lee-Moore algorithm
- Lee-type algorithm
- Lempel-Ziv algorithm
- Lempel-Ziv-Welch algorithm
- Levenberg-Marquardt algorithm
- LFU algorithm
- line-probe algorithm
- link state algorithm
- LU decomposition algorithm
- LZ algorithm
- LZW algorithm
- MacQueen's k-means algorithm
- McCulloch-Pitts algorithm
- memetic algorithm
- message authentication algorithm
- metaheuristic algorithm
- min-cut algorithm
- modified Gram-Schmidt algorithm
- Nelder-Mead simplex algorithm
- nested algorithm
- numerical algorithm
- Oja iterative algorithm
- on-line algorithm
- optimization algorithm
- ordering algorithm
- painter's algorithm
- parallel algorithm
- pattern classification algorithm
- pattern recognition algorithm
- pel-recursive estimation algorithm
- placement algorithm
- planning algorithm
- polynomial algorithm
- predictive algorithm
- preemptive algorithm
- Prim algorithm
- production rule based algorithm
- pruning algorithm
- pseudo least recently used algorithm
- Q-R-algorithm
- quantum search algorithm
- quick-union algorithm with path compression
- quick-union algorithm
- radix sorting algorithm
- randomized algorithm
- rank algorithm
- Read-Solomon cyclic redundancy compression algorithm
- recognition algorithm
- recurrent algorithm
- recursive algorithm
- resilient propagation algorithm
- Rivest-Shamir-Adleman algorithm
- robust algorithm
- routing algorithm
- RProp algorithm
- RSA algorithm
- scheduling algorithm
- search algorithm
- search network algorithm
- secure hash algorithm
- selective-trace algorithm
- self-organizing algorithm
- semi-numerical algorithm
- sequential algorithm
- sequential leader clustering algorithm
- serial algorithm
- shortest path algorithm
- sieving algorithm
- simulated annealing training algorithm
- simulation algorithm
- smoothing algorithm
- software algorithm
- spanning tree algorithm
- spline algorithm
- splitting algorithm
- stack algorithm
- statistical algorithm
- stochastic algorithm
- supervised training algorithm
- symmetric encryption algorithm
- time-wheel algorithm
- training algorithm
- universal algorithm
- unsupervised training algorithm
- van der Waerden algorithm
- variational algorithm
- vector distance algorithm
- Viterbi algorithm
- VLSI algorithm
- weighted quick-union algorithm
- working algorithmThe New English-Russian Dictionary of Radio-electronics > algorithm
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9 field
1) поле || полевой2) магн. наряжённость поля3) участок; область5) полигр. фон; грунт6) горн. прииск; месторождение7) горн. промысел || промысловый8) матем. тело; поле10) полевой; эксплуатационный•- algebraically complete field - axisymmetric field - base field - basic field - completely valuated field - field of algebraic numbers - fully ordered field - fully ramified field - gross field - guiding magnetic field - linear transformation field - locally compact ultrametric field - locally finite field - purely unseparable field - strictly monotone field - strongly isomorphic field - topologized algebraic field - totally imaginary field - totally ramified field - totally real fieldfield with a valuation — поле с оценкой, поле с нормой; метризованное поле
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10 group
1) группа, ансамбль || групповой- roughing mill group2) совокупность; комплект3) группировка || группировать(ся)5) класс; категория || классифицировать; категоризировать6) хим. остаток7) сгусток; скопление8) узел9) матем. группа- absolute free group - absolute homotopy group - absolutely irreducible group - absolutely simple group - additively written group - adele group - adelic group - algebraically compact group - algebraically simple group - almost connected group - almost cyclic group - almost ordered group - almost periodic group - almost simple group - alternating form group - cancellative group - cellular homology group - characteristically simple group - complementing group - completely anisotropic group - completely discontinuous group - completely divisible group - completely indecomposable group - completely integrally closed group - deficient group - direct homology group - direct indecomposable group - doubly transitive group - finitely defined group - finitely generated group - finitely presented group - finitely related group - first homology group - first homotopy group - freely generated group - full linear group - full orthogonal group - full rotation group - full symmetric group - full unimodular group - group of classes of algebras - group of covering transformations - group of finite rank - group of infinite order - group of infinite rank - group of inner automorphisms - group of linear equivalence - group of linear forms - group of linear manifold - group of principal ideles - group of real line - group of recursive permutations - group of right quotients - idele class group - linearly ordered group - linearly transitive group - locally bicompact group - locally closed group - locally compact group - locally connected group - locally cyclic group - locally defined group - locally embeddable group - locally finite group - locally free group - locally infinite group - locally nilpotent group - locally normal group - locally solvable group - multiply primitive group - multiply transitive group - nonsolvable group - n-th homotopy group - ordered pair group - principal congruence group - properly orthogonal group - properly unimodular group - pure projective group - pure rotation group - pure simple group - quasipure projective group - quotient divisible group - residually nilpotent group - restricted holonomy group - sharply transitive group - simply ordered group - simply reducible group - simply transitive group - singular cogomology group - singular homology group - solvable group - stable group - strictly transitive group - strongly polycyclic group - subsolvable group - supersolvable group - totally ordered group - totally projective group - totally reducible group - triply transitive group - unitary symmetry group - unitary transformation group - value group - weak homology group - weakly mixing groupgroup with multiple operators — группа с многоместными операторами, мультиоператорная группа
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11 matrix
1) мат. матрица || матричный2) форма, шаблон4) растр5) решётка6) таблица7) геол. материнская порода, основная масса ( породы)8) основа кристаллического вещества; кристаллическая решётка•- absolutely equivalent matrices - adjoint matrices - almost perfect matrix - almost periodic matrix - almost superdiagonal matrix - associative matrix - birth-death coefficient matrix - cocycle matrix - commutative matrix - commute matrices - commuting matrix - complex conjugate matrix - compound matrix - conjunctive matrices - consistently ordered matrix - constituent matrices - deficient matrix - doubly degenerated matrix - doubly stochastic matrix - encoding matrix - essentially positive matrix - magnetic core matrix - matrix of linear transformation - multiplicatively cogredient matrix - multiply degenerate matrix - mutually consistent matrices - nearly triangular matrix - negatively semidefinite matrix - nonnegatively semidefinite matrix - orthogonally similar matrices - positively definite matrix - positively semidefinite matrix - regularly partitioned matrix - strictly upper triangular matrix - strongly equivalent matrices - totally nonnegative matrix - totally positive matrix - totally unimodular matrix - uniformly tapered matrix - vertex incidence matrix - vertically symmetrical matrix - weakly cyclic matrix -
12 method
метод; процедура; способ- antithetic variate method - average ordinate method - average range method - binary search method - conjugate directions method - conjugate gradient method - control chart method - conventional milling method - correlation function method - decision function method - differential control method - Feynman diagram method - first approximation method - gradient projection method - iterative method - large sample method - large sieve method - least-squares regression method - less than fully efficient method - linearly implicit method - method of adjoint gradient - method of algebraic addition - method of alternating directions - method of balanced blocks - method of complex numbers - method of confidence intervals - method of conformal mappings - method of conjugate directions - method of conjugate gradients - method of cyclic descent - method of detached coefficients - method of disjunction of cases - method of divided differences - method of electrical images - method of elimination of quantifiers - method of empty ball - method of extreme values - method of false position - method of feasible directions - method of finite differences - method of first approximation - method of first entrance - method of fitting constants - method of fixed points - method of full enumeration - method of generating functions - method of geometric exhaustion - method of indefinite coefficients - method of infinite descent - method of interval bisection - method of least absolute values - method of least distance - method of least likelihood - method of maximum likelihood - method of means and standard deviations - method of medians and extreme values - method of minimal change - method of minimal variance - method of mirror reflections - method of moving frame - method of multiple comparison - method of orthogonal projections - method of paired associates - method of paired comparisons - method of phase integrals - method of projecting cones - method of proportional parts - method of rotating factors - method of semantic tableaux - method of separation of variables - method of simulaneous displacements - method of stationary phase - method of statistical differentials - method of statistical inference - method of steep variations - method of steepest ascent - method of stochastic approximation - method of straightforward iteration - method of successive displacements - method of successive divisions - method of successive elimination - method of transfinite induction - method of unweighted means - method of variable differences - method of variation of parameters - method of weighted residuals - optimum method - parallel tangents method - precision method - random walk method - recursive method - reduced gradient method - reflected wave method - relative method of measurement - sampling method by variables - statistical sampling method - steepest descent method - time average method -
13 number
1) число || числовой2) номер || нумеровать3) код числа4) количество5) колонцифра6) численность || считать, подсчитывать, исчислять8) числительное•a great number of — множество, большое количество
a number of — (целый) ряд, некоторое количество
- absolutely pseudoprime number - connectivity number - deficient number - edge attachment number - edge covering number - edge sensitivity number - expected sample number - general recursively irrational number - geodesic crossing number - integer number - integral number - internal stability number - international customer number - mass exchange number - mixed-radix number - Mohs hardness number - number of principal cotype - number of space dimensions - octonary number - one-digit number - one-figure number - one's complement number - rectilinear crossing number - recursively real number - serial number - Shore hardness number - strictly positive number - vertex covering numberwinding number of a curve with respect to the point — порядок кривой относительно точки (число оборотов вектора, соединяющего данную точку с точкой кривой при обходе кривой)
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14 property
1) свойство; качество; атрибут2) имущество; собственность3) способность•- fixed point property - minimum norm property - property of being atomistic - property of being centered - property of being holomorphic - property of being meromorphic - property of being odd - property of being two-valued - property of being unitary -
15 space
1) интервал, промежуток2) пробел || оставлять пробелы3) область; площадь4) пространство || пространственный5) космос, космическое пространство6) полость7) расстояние•- absolutely compact space - absolutely embedded space - absolutely thick space - algebraically parallel space - almost complex space - almost expandable space - almost isomorphic space - almost metric space - almost nonsingular space - almost paracompact space - almost pretopological space - analytically ramified covering space - arcwise connected space - centrally harmonic space - compactly ordered space - completely continuous space - completely degenerate space - completely disconnected space - completely harmonic space - completely metric space - completely normal space - completely reducible space - completely regular space - completely reticulated space - completely separable space - completely separated space - completely symmetric space - completely uniformizable space - constant curvature space - continuous sample space - continuously ordered space - contractible in itself space - countably compactifiable space - countably dimensional space - countably generated space - countably infinite space - countably metacompact space - countably multinormed space - countably normed space - countably paracompact space - countably refinable space - countably subcompact space - finitely productive space - finitely sheeted space - finitely triangulated space - fully normal space - general metrizable space - general topological space - global analytic space - globally symmetric space - hereditarily normal space - hereditarily paracompact space - hereditarily separable space - hereditarily symmetric space - holomorphic tangent space - holomorphically complete space - holomorphically convex space - homotopy associative space - iterated loop space - linearly connected space - linearly ordered space - linearly topologized space - load space - locally bounded space - locally closed space - locally compact space - locally complete space - locally connected space - locally contractible space - locally convex space - locally directed space - locally fine space - locally holomorphic space - locally homogeneous space - locally hyperbolic space - locally linear space - locally metrizable space - locally ringed space - locally separable space - locally simply connected space - locally solid space - locally spherical space - locally star-shaped space - locally symmetric space - locally timelike space - locally triangulable space - monotonically normal space - naturally isomorphic space - naturally ordered space - naturally reductive space - nearly paracompact space - negative metric space - normally separated space - not simply connected space - nowhere connected space - null space of linear transformation - n-way projective space - perfectly normal space - perfectly regular space - perfectly screenable space - perfectly separable space - peripherically bicompact space - peripherically compact space - pointwise paracompact space - projectively metric space - quaternion hyperbolic space - quaternion projective space - quaternion vector space - regularly ordered space - relatively discrete space - relatively strong space - sequentially closed space - sequentially compact space - sequentially complete space - sequentially quasicomplete space - sequentially separable space - simply ordered space - simply partitionable space - space of affine connectedness - space of complex homomorphisms - space of continuous functions - space of finite measure - space of linear interpolation - space of right cosets - space of scalar curvature - strongly bounded space - strongly closed space - strongly compact space - strongly complete space - strongly irreducible space - strongly normal space - strongly normed space - strongly paracompact space - strongly pseudocompact space - strongly pseudometrizable space - strongly rigid space - strongly screenable space - structural space - structure space - topologically complete space - totally disconnected space - totally geodesic space - totally imperfect space - totally normal space - totally orderable space - totally ordered space - water jacket space - weakly closed space - weakly compact space - weakly complete space - weakly covering space - weakly dense space - weakly favorable space - weakly n-dimensional space - weakly paracompact space - weakly regular space - weakly separable space - weakly symmetric spaceto space out — полигр. набирать вразрядку
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16 arc-proof low voltage switchgear and controlgear assembly
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
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[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-proof low voltage switchgear and controlgear assembly
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17 arc-proof switchboard
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
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[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-proof switchboard
-
18 arc-proof switchgear
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-proof switchgear
-
19 arc-resistant switchgear
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > arc-resistant switchgear
-
20 internal arc-proof switchgear and controlgear assemblу
НКУ с защитой от воздействия электрической дуги
комплектное устройство с защитой от электрической дуги
низковольтное комплектное устройство с защитой от электрической дуги
НКУ распределения и управления с защитой от электрической дуги
-
[Интент]EN
arc-resistant switchgear
A type of switchgear design which is designed to withstand the effects of an internal arcing fault, without causing harm to personnel who are located in defined areas. It is not intended to withstand these internal arcing fault without possibly causing physical damage to the structure and/or components, but often the physical damage is less with an arc-resistant design.
There are three classes of protection:
Type A - eliminates the emission of gases and particles from the front of the switchgear during an internal arcing fault,
Type B - eliminates the emission of gases and particles from the front and sides of the switchgear during an internal arcing fault,
Type C - eliminates the emission of gases and particles from the front and sides of the switchgear, from between compartments within the same cell, and between adjacent cells during an internal arcing fault.
Arc-resistant switchgear has traditionally been metal-clad, but the basic concept could also be applied to other types of switchgear as well.
arc-proof switchgear
An incorrect term. Please refer to arc-resistant switchgear
[Schneider Electric]
[ http://electrical-engineering-portal.com/glossary-of-medium-voltage-switchgear-terms]Параллельные тексты EN-RU
If the electric arc occurs inside LV switchgear it generates internal overpressures and results in local overheatings which may cause high mechanical and thermal stresses in the equipment.
Besides, the involved materials can generate hot decomposition products, gases or fumes, which, due to the overpressure, are almost always ejected to the outside of the enclosure thus jeopardizing the operator safety.
The European Directive 2006/95/EC states the fundamental safety requirements for low voltage electric materials (from 50 V to 1000 V in alternating current, from 75 V to 1500 V in continuos current) to be put on the market within the European Community.
Among the essential safety requirements defined by this Directive particular importance is given to the need of taking technical measures to prevent “temperature rises, electric arcs or radiations which may result in hazards” from occurring.
This aspect has always been highly considered for apparatus, but it has been wrongly neglected for electrical switchgear and only in the last 10-15 years it has been catching on both at Italian as well as at international level.
Safety for the operator and for the installation in case of arcing inside LV switchgear can be obtained through three different design philosophies:
1. assemblies mechanically capable of withstanding the electric arc (passive protection)
2. assemblies equipped with devices limiting the effects of internal arcing (active protection)
3. assemblies equipped with current limiting circuitbreakers.
These three solutions (also combined together) have found a remakable development in the industrial field and have been successfully applied by the main manufacturers of LV switchgear and controlgear assemblies.
As it can be seen hereafter by examining the first two solutions, an “active” protection against arc faults is intrinsecally more complex than a “passive” one.
This because of the presence of additional electromechanical/ electronic devices5 which limit the arcing effects and which, by their nature, may be subject to faults or not-tripping.
[ABB]Дуга, возникшая внутри НКУ, создает внутреннее избыточное давление и вызывает локальный перегрев, что может привести к воздействию на оборудование значительного механического напряжения и перепада температур.
Кроме того, под воздействием дуги различные материалы разлагаются на продукты, имеющие высокую температуру, в том числе газы и дым, которые почти всегда вырываются из оболочки НКУ под высоким давлением, подвергая опасности оперативный персонал.
Европейская директива 2006/95/EC определяет основные требования безопасности для низковольтного (от 50 до 1000 В переменного тока и от 75 до 1500 В постоянного тока) оборудования поставляемого на рынок Европейского Сообщества.
Одно из основных требований безопасности, определяемое данной директивой как наиболее важное, заключается в необходимости предпринять технические меры для предотвращения "подъема температуры, возникновения электрической дуги или излучения", которые могут причинить ущерб.
Данная проблема всегда учитывалась при создании различных аппаратов, но незаслуженно игнорировалась при разработке электрических комплектных устройств, и только в последние 10-15 лет ей стали уделять должное внимание как в Италии, так и во всем мире.
При возникновении электрической дуги внутри НКУ безопасность оператора и электроустановки обеспечивается тремя способами:
1. Конструкция НКУ должна выдерживать механические воздействия, возникающие при горении электрической дуги (пассивная защита).
2. НКУ должно быть оснащено устройствами, ограничивающими воздействие электрической дуги (активная защита)
3. НКУ должны быть оснащены токоограничивающими автоматическими выключателями.
Указанные три способа (применяемые совместно) получили дальнейшее развитие в промышленности и успешно применяются основными изготовителями НКУ распределения и управления.
Как будет показано далее при рассмотрении первых двух способов, активная защита от дуговых» неисправностей является более сложной, чем пассивная защита.
Это объясняется необходимостью использования дополнительных электромеханических или электронных устройств, задачей которых является ограничение воздействий дуги и которые сами могут оказаться неисправными и не сработать.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
Синонимы
- комплектное устройство с защитой от электрической дуги
- низковольтное комплектное устройство с защитой от электрической дуги
- НКУ распределения и управления с защитой от электрической дуги
EN
Англо-русский словарь нормативно-технической терминологии > internal arc-proof switchgear and controlgear assemblу
См. также в других словарях:
Decomposition (disambiguation) — Decomposition may refer to the following: Decomposition, biological process through which organic material is reduced Chemical decomposition or analysis, in chemistry, is the fragmentation of a chemical compound into elements or smaller compounds … Wikipedia
Fundamental group — In mathematics, the fundamental group is one of the basic concepts of algebraic topology. Associated with every point of a topological space there is a fundamental group that conveys information about the 1 dimensional structure of the portion of … Wikipedia
Fundamental class — For the fundamental class in class field theory see class formation. In mathematics, the fundamental class is a homology class [M] associated to an oriented manifold M, which corresponds to the whole manifold , and pairing with which corresponds… … Wikipedia
Ricci decomposition — In semi Riemannian geometry, the Ricci decomposition is a way of breaking up the Riemann curvature tensor of a pseudo Riemannian manifold into pieces with useful individual algebraic properties. This decomposition is of fundamental importance in… … Wikipedia
Helmholtz decomposition — In mathematics, in the area of vector calculus, Helmholtz s theorem, also known as the fundamental theorem of vector calculus, states that any sufficiently smooth, rapidly decaying vector field can be resolved into irrotational (curl free) and… … Wikipedia
Indefinite inner product space — In mathematics, in the field of functional analysis, an indefinite inner product space :(K, langle cdot,,cdot angle, J) is an infinite dimensional complex vector space K equipped with both an indefinite inner product :langle cdot,,cdot angle and… … Wikipedia
Bass–Serre theory — is a part of the mathematical subject of group theory that deals with analyzing the algebraic structure of groups acting by automorphisms on simplicial trees. The theory relates group actions on trees with decomposing groups as iterated… … Wikipedia
chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium
Hilbert space — For the Hilbert space filling curve, see Hilbert curve. Hilbert spaces can be used to study the harmonics of vibrating strings. The mathematical concept of a Hilbert space, named after David Hilbert, generalizes the notion of Euclidean space. It… … Wikipedia
Ecosystem ecology — Figure 1. A riparian forest in the White Mountains, New Hampshire (USA). Ecosystem ecology is the integrated study of biotic and abiotic components of ecosystems and their interactions within an ecosystem framework. This science examines how… … Wikipedia
Grushko theorem — In the mathematical subject of group theory, the Grushko theorem or the Grushko Neumann theorem is a theorem stating that the rank (that is, the smallest cardinality of a generating set) of a free product of two groups is equal to the sum of the… … Wikipedia