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1 lower temperature limit
Холодильная техника: минимальная температура, нижний предел температурыУниверсальный англо-русский словарь > lower temperature limit
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2 lower temperature limit
Englsh-Russian aviation and space dictionary > lower temperature limit
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3 limit
предел, граница; допуск; ограничиватьangle of attack limit — предел по углу атаки, предельное значение угла атаки
c.g. limit — предельная центровка
duration limit of the thrust chamber — предельная продолжительность работы ракетного двигателя (до разрушения из-за перегрева)
— q limit -
4 limit
1. граница; предел || ограничивать; ставить предел2. допуск— creeping limit
* * *
1. предел; граница2. pl. интервал значений
* * *
предел, допуск; предельный
* * *
1) предел; граница2) pl интервал значений•- limit of elasticity
- limit of pool
- limit of wear
- age limit
- areal limits
- areal limits of oil sand
- casing running limits
- cone-type bit deviation limits
- corrosion endurance limit
- corrosion fatigue limit
- down-dip limit of pool
- drainage region limit
- drilling limits
- economic limit
- elastic limit
- explosivity limits
- fatigue limit
- hole deviation limits
- life limit
- load limit
- lower limit
- lower explosive limit
- operating limits
- operating temperature limit
- pressure limit
- production rate limit
- pumping limit of mud
- reject limit
- reliability limit
- repair cost limit
- stress limit
- survival limit
- test limits
- torsional endurance limit
- tripping limit
- up-dip limit of pool
- yield limit -
5 limit
1) предел; граница; порог || устанавливать предел; ограничивать2) габарит3) допуск4) мн. ч. интервал значений•limit from the left — предел слева;limit from the right — предел справа;to exceed forward center of gravity limit — возд. превышать переднюю максимально допустимую центровку;to fall within clearance limits — вписываться в габарит;to pass to the limit — переходить к пределуlimit of drilling mud temperature stability — предельная (теоретическая) термостойкость бурового раствораlimit of "in" — предел втягивания ( руки робота)limit of "out" — предел выдвижения ( руки робота)limit of plasticity — предел пластичности, граница раскатывания ( глинистых грунтов)limit of proportionality — сопр. предел пропорциональностиlimit of superheat — предельный перегрев ( при вскипании жидкости)limit of "swing" — предел качания ( руки робота)-
age limit
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allowable time limit
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alternating bending stress fatigue limit
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audibility limit
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axleload limit
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backfire limit
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bilateral limit
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breaking limit
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burning limit
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check-in time limit
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clearance limit
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combustion limit
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condemning limit
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confidence limit
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constraint limit
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conventional endurance limit
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corrosion endurance limit
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creep limit
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cross-wind limit
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damming limit
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design limits
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detection limit
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dimension limit
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discharge limits
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elastic limit
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endurance limit
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estimated limit
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expected destruction limit
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explosive limits
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exposure limit
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extension limit
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fatigue limit
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fetch limit
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fiducial limit
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fire limits
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fixed stop limit
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flame initiation limit
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flashback limit
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flyover noise limit
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force power limit
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glass-forming limit
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grade limit
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gradeability limit
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high stop warning limit
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high torque limit
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highest torque limit
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hydraulic valve operating limit
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ice limit
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ignition limit
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improper limit
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inflammability limit
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interlocking limit
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keeping limit
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kinetic limit
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lean limit
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liquid limit
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load limit
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long-wavelength limit
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long-wave limit
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low stop limit
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low torque warning limit
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lower explosive limit
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lower frequency limit
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lower limit
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lowest torque limit
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machine overload limit
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magnetic limit
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maximum concentration limit
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maximum permissible limit
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measurement limits
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negative deviation limit
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neutron dose limit
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noise exposure limit
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normal operation limits
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operating temperature limit
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operation time limit
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page limit
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pedal travel limit
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permissible limit
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physical limits
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plastic limit
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positive deviation limit
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power system stability limit
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predetermined maximum limit
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prescribed limit
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preset limit
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preset size limit
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processing limits
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programmable limit
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proportional limit
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rate limit
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rated limit
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reaction limit
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rebuild limit
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reject limit
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release limit
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resolution limit
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response limit
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restricting speed limit
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robot's load limit
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saturation limit
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semiautomatically selected limit
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service limit
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Shannon limit
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short-wavelength limit
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short-wave limit
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smoke limit
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solubility limit
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speed limit
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station limit
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steady-state stability limit
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stress limit
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switching limit
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tensile yield limit
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tension-and-compression fatigue limit
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thermal cracking limit
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threshold concentration limit
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tightening limit
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time-current zone limits
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tolerance limit
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torque limit
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torque power limit
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torsional endurance limit
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towing speed limit
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transient stability limit
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travel limit
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tripping limit
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ultimate stress limit
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upper elevation limit
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upper frequency limit
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upper limit
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voltage-temperature limits
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warning limit
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wear limit
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yard limit -
6 lower
1) (to make or become less high: She lowered her voice.) bajar2) (to let down: He lowered the blinds.) bajarlower vb bajartr['ləʊəSMALLr/SMALL]1 inferior1 (in general) bajar; (price) rebajar2 (flag) arriar\SMALLIDIOMATIC EXPRESSION/SMALLto lower oneself rebajarselower case caja baja, minúsculalower class clase nombre femenino bajaLower House Cámara Bajalower ['lo:ər] vt1) drop: bajarto lower one's voice: bajar la voz2) : arriar, bajarto lower the flag: arriar la bandera3) reduce: reducir, bajar4)to lower oneself : rebajarselower ['lo:ər] adj: inferior, más bajo, de abajoadj.• bajero, -a adj.• inferior adj.• más bajo adj.adv.• menos adv.n.• ceño s.m.• inferior s.m.v.• abaratar v.• abatir v.• agachar v.• amainar v.• arriar v.• bajar v.• rebajar v.
I 'ləʊər, 'ləʊə(r)1) comp of low I,II2) (before n)a) (spatially, numerically) <jaw/lip> inferiorlower age limit — edad f mínima
b) (in rank, importance) <rank/echelons> inferior, más bajothe lower chamber/Lower House — la cámara baja
c) <mammals/apes/life-forms> inferior3) ( Geog) bajo
II
1. 'ləʊər, 'ləʊə(r)1) ( let down) \<\<blind/ceiling\>\> bajar; \<\<flag/sail\>\> bajar, arriar*to lower one's eyes — bajar la vista or los ojos
2) (reduce, diminish) \<\<temperature/volume/price\>\> bajarto lower somebody's morale — bajarle la moral a alguien, desmoralizar* a alguien
it lowered his resistance to disease — le minó or le disminuyó las defensas
2.
v refl
3.
vi \<\<prices/standards/temperature\>\> bajar
III 'laʊr, 'laʊə(r)intransitive verb (liter)a) ( darken) \<\<sky\>\> encapotarseb) ( frown) fruncir* el ceño
I ['lǝʊǝ(r)]1. ADJlow1) (=bottom) [part, section, floors, windows] de abajo, inferior; [slopes] inferior, bajo•
the lower half/ part of — la mitad/parte inferior de, la mitad/parte de abajo de2) (=less important) [level, rank, caste] inferior•
the lower chamber — (Parl) la cámara baja•
the lower court — (Jur) los tribunales inferiores3) (Anat) inferior•
the lower abdomen/ back — la parte inferior del abdomen/de la espalda•
she suffered severe cuts on her lower leg — sufrió cortes de gravedad en la parte inferior de la pierna4) (Zool) inferior5) (Geog) (in names)reach 3., 2)2.to lower o.s. — (fig) rebajarse
3.VI bajar4.CPDlower-caselower case N — (Typ) minúsculas fpl
lower class N —
lower-classthe lower class or classes — la clase baja
lower deck N — [of bus] piso m de abajo; (Naut) (=part of ship) cubierta f inferior
the lower deck * — (=personnel) los marineros
the Lower House N — (Parl) la Cámara Baja
lower sixth N — (Brit) ≈ 1º de Bachillerato f
lower vertebrates NPL — vertebrados mpl inferiores
II
['laʊǝ(r)]VI [person] fruncir el entrecejo, fruncir el ceño; [sky] encapotarse* * *
I ['ləʊər, 'ləʊə(r)]1) comp of low I,II2) (before n)a) (spatially, numerically) <jaw/lip> inferiorlower age limit — edad f mínima
b) (in rank, importance) <rank/echelons> inferior, más bajothe lower chamber/Lower House — la cámara baja
c) <mammals/apes/life-forms> inferior3) ( Geog) bajo
II
1. ['ləʊər, 'ləʊə(r)]1) ( let down) \<\<blind/ceiling\>\> bajar; \<\<flag/sail\>\> bajar, arriar*to lower one's eyes — bajar la vista or los ojos
2) (reduce, diminish) \<\<temperature/volume/price\>\> bajarto lower somebody's morale — bajarle la moral a alguien, desmoralizar* a alguien
it lowered his resistance to disease — le minó or le disminuyó las defensas
2.
v refl
3.
vi \<\<prices/standards/temperature\>\> bajar
III ['laʊr, 'laʊə(r)]intransitive verb (liter)a) ( darken) \<\<sky\>\> encapotarseb) ( frown) fruncir* el ceño -
7 lower
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8 limit
граница; предел; допуск; интервал значений; ограничивать; ставить предел limit of accuracy предел точности limit of elasticity предел упругости limit of sensitivity предел чувствительности limit of structural damage граница повреждений конструкции limit of vacuum pull предел всасывания или подъема воды при помощи вакуума limit blowout - граница срыва пламени limit city - граница города limit combustion - предел горения limit corrosion endurance - предел коррозийной выносливости limit detonation -s пределы детонации limit explosive -s пределы взрываемости limit fire -s пожарные ограничения (в строительстве) limit inflammability -s концентрационные пределы воспламеняемости (горючей смеси) limit isothermal - изотерма (кривая, соединяющая точки с равной температурой) limit lean - предел обеднения, нижний предел (горючей смеси) limit lean - of flammability нижним предел воспламеняемости (горючей смеси) limit low(er) - нижний предел limit lower temperature - нижний температурный предел limit rich - of flammability верхний предел воспламеняемости (горючей смеси) limit speed - предел или ограничение скорости limit stability - предел устойчивости limit temperature -s температурный диапазон limit thermal - тепловой предел limit upper - верхний предел -
9 limit
age limitпредельный срок службыaircraft limit switchконцевой выключатель в системе воздушного суднаallowable time limitдопустимый предел наработкиatmospheric limitsатмосферные ограниченияcenter-of-gravity limitпредел центровкиcheck-in time limitвремя окончания регистрацииclearance limitграница действия разрешенияcoverage limitзона действияcross-wind limitограничение по боковому ветруdesigned stress limitпредел допустимых расчетных перегрузокdown-lock limit switchконцевой выключатель замка выпущенного положения(шасси) endurance limitдопустимый предел выносливостиengine limit governorрегулятор предельных оборотов двигателяfatigue limitпредел усталостиflyover noise limitдопустимый предел шума при полетеforward limitпревышать переднюю максимально допустимую центровкуgap limit gageкалибр - скобаglide slope limit lineлиния ограничения отклонения от глиссадыlimit advisoryконсультативное сообщение об ограниченияхlimit bank warning unitблок сигнализации предельного кренаlimit flight timeограничивать полетное времяlimiting range of massпредел ограничения массыlimit loadпредельная нагрузкаlimit operating loadпредельная эксплуатационная нагрузкаlimit speed switchсигнализатор достижения предельной скоростиlimit switchконцевой выключательlimit switch actuating pinшток концевого выключателяlimit switch assemblyблок концевых выключателейlower limitнижняя границаmaximum limit speedмаксимально допустимая скоростьmaximum speed limiting systemсистема ограничения максимальных оборотовno limitsбез ограниченийobstacle clearance limitминимальная высота пролета препятствийoperation time limitмаксимально допустимое время работыoverspeed limiting controlузел ограничения заброса оборотовpitch limit systemсистема ограничения шага(воздушного винта) plug limit gageкалибр-пробкаrudder limiting systemсистема ограничения отклонения руля направленияrudder limit stop actuatorмеханизм ограничения отклонения руля направленияstability limitпредел устойчивостиstress limitпредел нагрузкиtable of limitsтаблица ограниченийtemperature limit switchсигнализатор ограничения температурыtime limitограничение по времениun-lock limit switchконцевой выключатель замка убранного положения(шасси) upper age limitверхний возрастной пределupper limitверхняя границаvisibility limitпредел видимостиwind limitпредел скорости ветра -
10 lower
lower [ˈləʊər]1. adjectiveb. [+ pressure, heating, price, voice] baisser• lower your voice! parle moins fort !• to lower o.s. to do sth s'abaisser à faire qch3. compounds• lower-class family famille f ouvrière ► lower deck noun [of bus] étage m inférieur ; [of ship] pont m inférieur• a lower middle-class family une famille de la classe moyenne ► lower sixth noun (British) ≈ classe f de première* * *I 1. ['laʊə(r)]intransitive verb littér ( frown) prendre un air comminatoire (at avec)2.lowering present participle adjective [sky] menaçantII 1. ['ləʊə(r)] 2.transitive verb1) ( bring down) baisser [barrier, curtain, flag]; abaisser [ceiling]2) ( reduce) baisser [light, prices, standards]; réduire [pressure, temperature]; diminuer [resistance]; abaisser [age limit]to lower one's guard — fig relâcher sa vigilance
3) ( abolish) abolir [trade barrier]4) Nautical affaler [sail]; mettre [quelque chose] à la mer [lifeboat]3.1) ( demean oneself) s'abaisser2) ( sit carefully)to lower oneself into — entrer lentement dans [bath]; s'asseoir précautionneusement dans [chair]
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11 lower
I ['ləʊə(r)]aggettivo [level, part, price] inferioreII 1. ['ləʊə(r)]1) (bring down) abbassare [barrier, rifle]; calare [ curtain]; ammainare [ flag]; abbassare [ ceiling]2) (reduce) abbassare [light, volume, age limit, standards]; abbassare, diminuire [temperature, prices]; indebolire [ resistance]to lower one's guard — fig. abbassare la guardia
3) (abolish) abolire [ trade barrier]2.verbo riflessivo to lower oneself1) (demean oneself) sminuirsiIII ['laʊə(r)]to lower oneself into — entrare lentamente in [ bath]; sedersi con cautela su [ chair]
verbo intransitivo lett. (frown) assumere un'aria minacciosa (at verso)* * *1) (to make or become less high: She lowered her voice.) abbassare2) (to let down: He lowered the blinds.) abbassare* * *lower (1) /ˈləʊə(r)/(compar. di low)A a.1 inferiore; più bassoB avv.più basso; più in basso● (tipogr.) lower case, (sost.) carattere minuscolo; (agg.) minuscolo □ lower class, ceto basso, classe operaia □ lower-class, del ceto basso, operaio □ (naut.) lower deck, sottocoperta; (fam.) l'equipaggio □ (stor.) the Lower Empire, il Basso Impero □ (polit.) the Lower House, la Camera Bassa □ ( calcio) the lower league, la serie cadetta; i cadetti (collett.) □ (naut.) lower mast, tronco di mezzana □ the lower middle class, la piccola borghesia □ lower middle-class, piccolo borghese □ the lower regions, gli inferi □ (naut.) lower sails, vele maggiori □ lower school, corso inferiore ( di una scuola secondaria) □ (naut.) lower studding sail, scopamare; coltellaccio di basso parrocchetto □ the lower world, la terra; ( anche) gli inferi □ (naut.) lower yard, pennone basso; pennone maggiore.lower (2) /ˈlaʊə(r)/► lour.♦ (to) lower (1) /ˈləʊə(r)/A v. t.1 abbassare; ammainare; calare; diminuire; ridurre: to lower a wall, abbassare un muro; to lower the flag, ammainare la bandiera; to lower one's voice, abbassare la voce; to lower a load, calare un carico; to lower expenses, diminuire le spese; (naut.) to lower a lifeboat, calare una lancia di salvataggio; to lower prices [customs duties], ridurre i prezzi [i dazi doganali]B v. i.1 abbassarsi; calare; diminuire; ridursi: Our debentures are lowering in value, le nostre obbligazioni diminuiscono di valore; His voice lowered to an imperceptible murmur, la voce gli si è abbassata in un mormorio impercettibile4 (naut.) calare un'imbarcazione● ( boxe) to lower one's guard, abbassare la guardia □ ( sport) to lower a record, abbassare un record; battere un primato □ (fam.) to lower a sandwich, buttar giù (o mangiare) un panino imbottito.(to) lower (2) /ˈlaʊə(r)/► to lour.* * *I ['ləʊə(r)]aggettivo [level, part, price] inferioreII 1. ['ləʊə(r)]1) (bring down) abbassare [barrier, rifle]; calare [ curtain]; ammainare [ flag]; abbassare [ ceiling]2) (reduce) abbassare [light, volume, age limit, standards]; abbassare, diminuire [temperature, prices]; indebolire [ resistance]to lower one's guard — fig. abbassare la guardia
3) (abolish) abolire [ trade barrier]2.verbo riflessivo to lower oneself1) (demean oneself) sminuirsiIII ['laʊə(r)]to lower oneself into — entrare lentamente in [ bath]; sedersi con cautela su [ chair]
verbo intransitivo lett. (frown) assumere un'aria minacciosa (at verso) -
12 lower
1) (to make or become less high: She lowered her voice.) senke, sette ned, dempe2) (to let down: He lowered the blinds.) heise/slippe ned, senkesenkeIsubst. \/ˈləʊə\/se ➢ lour, 1IIverb \/ˈləʊə\/1) ( også overført) senke, sette ned2) ( om lyd) senke, dempe, avta, skru ned (volumet)3) ( musikk) senke (toneleiet), legge lavere4) ( om flagg) fire, ta ned5) ( sjøfart) låre, fire (ned), sette ut6) synke, falle, gå ned, bli lavere, minke, avta7) ( hverdagslig) helle i seg, svelge8) ( også lour) se bister ut, se ond ut, se truende utlower into senke ned ilower oneself (to do something) nedverdige seg, ydmyke seg, nedlate seglower one's tone ( overført) dempe seg, jekke seg nedlower the boom on (amer., hverdagslig) behandle hardhendt sette en stopper forIIIverb \/ˈlaʊə\/se ➢ lour, 2IVadj. \/ˈləʊə\/1) ( komparativ av low) lavere2) underste, under-, nedre3) (geologi, arkeologi) eldre, nedre (lag)4) (amer., skolevesen) forklaring: det nederste av to påfølgende årstrinn5) ( biologi) laverestående6) (geografi, ofte i stedsnavn) nedre, søndre, sør-the lower classes de lavere klassene, underklassenlower deck ( sjøfart) underdekk, lavere dekk banjerdekk underoffiserer og mannskaplower limit nedre grense, minimumsgrensethe lower school småskolenthe lower world jorden underverdenen, helveteVadv. \/ˈləʊə\/lavere, lengre (ned)lower down lengre ned -
13 lower
I.II.A comp adj [deck, jaw, level, lip, part, price] inférieur ; a pain in the lower back une douleur au bas du dos.B vtr1 ( bring down) baisser [barrier, blind, curtain, flag, newspaper, rifle] ; Constr abaisser [ceiling] ; to lower one's eyes/head/arms baisser les yeux/la tête/les bras ; to lower sb/sth into descendre qn/qch dans [hole] ; to lower sb/sth onto descendre qn/qch sur [roof, boat] ;2 ( reduce) baisser [light, volume] ; réduire [pressure, temperature] ; baisser [prices] ; diminuer [resistance] ; abaisser [age limit] ; baisser [standards] ; to lower one's voice baisser la voix ; to lower one's guard baisser sa garde ; fig relâcher sa vigilance ; to lower sb's morale démoraliser qn ;3 ( abolish) abolir [trade barrier] ;4 Naut affaler [sail] ; mettre [qch] à la mer [lifeboat] ; amener [mast] ; the lifeboats were lowered into the sea les canots de sauvetage ont été mis à la mer.1 ( demean oneself) s'abaisser ;2 ( sit carefully) to lower oneself into entrer lentement dans [bath] ; s'asseoir précautionneusement dans [chair].■ lower down:▶ lower [sth] down, lower down [sth] descendre [parcel, stretcher]. -
14 ambient air temperature for indoor installations
температура окружающей среды при внутренней установке
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[ ГОСТ Р МЭК 61439.1-2013]Параллельные тексты EN-RU
7.1.1.1 Ambient air temperature for indoor installations
The ambient air temperature shall not exceed +40 °C and its average over a period of 24 h shall not exceed +35 °C.
The lower limit of the ambient air temperature shall be –5 °C.
[BS EN 61439-1:2009]7.1.1.1 Температура окружающей среды при внутренней установке
Температура окружающей среды должна быть не более 40 °С, а средняя температура за 24 ч — не более 35 °С.
Минимальное значение температуры окружающей среды - минус 5 °С.
[ ГОСТ Р МЭК 61439.1-2013]
Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > ambient air temperature for indoor installations
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15 ambient air temperature for outdoor installations
температура окружающей среды при наружной установке
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[ ГОСТ Р МЭК 61439.1-2013]Параллельные тексты EN-RU
7.1.1.2 Ambient air temperature for outdoor installations
The ambient air temperature shall not exceed +40 °C and its average over a period of 24 h shall not exceed +35 °C.
The lower limit of the ambient air temperature shall be –25 °C.
[BS EN 61439-1:2009]7.1.1.2 Температура окружающей среды при наружной установке
Температура окружающей среды должна быть не более 40 °С, а средняя температура за 24 ч - не более 35 °С.
Минимальное значение температуры окружающей среды - минус 25 °С.
[ ГОСТ Р МЭК 61439.1-2013]
Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > ambient air temperature for outdoor installations
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16 continuous current-carrying capacity
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
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > continuous current-carrying capacity
-
17 ampacity (US)
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > ampacity (US)
-
18 continuous current
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
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
Англо-русский словарь нормативно-технической терминологии > continuous current
-
19 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 IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
предельно допустимый ток
—
[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
прочность печатной платы к токовой нагрузке
Свойство печатной платы сохранять электрические и механические характеристики после воздействия максимально допустимой токовой нагрузки на печатный проводник или металлизированное отверстие печатной платы.
[ ГОСТ Р 53386-2009]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > current-carrying capacity
-
20 control
1) контроль
2) контрольный
3) обоснование
4) обосновывать
5) оперативный
6) регулировать
7) регулировочный орган
8) совладать
9) управление
10) управляемость
11) управляющий
12) штурвальный
13) регулировка
14) управлять
15) проверять
16) регулирование
17) инструкция
18) исполнительный
19) контролировать
20) проверка
21) проверочный
22) регулирующий
– absence of control
– air traffic control
– air-traffic control
– analysis is in control
– anticipatory control
– arc control device
– association control
– attenuation control
– attitude control
– automatic control
– autonomous control
– autothrottle control
– bang-bang control
– be in control
– be out of control
– bin control gate
– brightness control
– bucket tip control
– bulge control
– centralized control
– closed-cycle control
– complete control
– context control
– continuous control
– contrast control
– control accuracy
– control action
– control actuator
– control agent
– control air
– control algorithm
– control amplifier
– control and display
– control assembly
– control beam
– control bus
– control button
– control cabinet
– control cable
– control cam
– control center
– control channel
– control character
– control characteristic
– control circuit
– control code
– control column
– control combination
– control computer
– control crank
– control criterion
– control current
– control cylinder
– control data
– control desk
– control electrode
– control electronics
– control element
– control equipment
– control factor
– control flutter
– control force
– control function
– control gate
– control gear
– control graphitization
– control instruction
– control jet
– control joint
– control key
– control knob
– control lag
– control lever
– control limit
– control linkages
– control links
– control loop
– control magnet
– control means
– control mode
– control module
– control motor
– control of airplane
– control office
– control operation
– control panel
– control pedal
– control position
– control problem
– control pulse
– control range
– control reactor
– control register
– control relay
– control response
– control room
– control shaft
– control spin
– control statement
– control stick
– control surface
– control survey
– control switch
– control temperature
– control theory
– control track
– control transistor
– control unit
– control vector
– control voltage
– control weeds
– control winding
– control wiring
– corrosion control
– dash control
– data control
– derivative control
– digital control
– direct control
– distance control
– disturbance-compensating control
– dive-recovery control
– duplicate control
– dust control
– ease of control
– elevator control
– emergency control
– end-point control
– engine control
– environment control
– error control
– error-closing control
– exclusive control
– extension of control
– feed control
– feed-back control
– feedback control
– filament control
– fine control
– fire control
– flight control
– floating control
– flood control
– flow-rate control
– focus control
– frequency control
– front-panel control
– gain control
– ganged control
– geodetic control
– go out of control
– ground control
– gyrorudder control
– hand control
– headwater control
– height control
– hierarchical control
– in-process control
– independent control
– indirect control
– industrial control
– input-output control
– integral control
– interacting control
– intermittent control
– inventory control
– jet control
– job control language
– layout of control
– leather control
– level control
– linearity control
– load control
– local control
– lose control
– loss of control
– manual control
– master control
– meduim-access control
– meduim-access control
– mission control
– multicircuit control
– noise control
– numerical control
– off-line control
– on-line control
– on-off control
– open-loop control
– operating control
– optimal control
– optimization control
– out of control
– pass control
– path control
– path of control
– pedal control
– pest control
– phase control
– phase-lock control
– piano-key control
– plan control
– point of control
– point-to-point control
– power-assisted control
– product control
– program control
– programmed control
– proportional control
– proportional-plus-floating control
– push-button control
– pushbutton control
– quality control
– radio control
– ramp control
– reaction control
– recovery control
– regain control
– register control
– remotability of control
– remote control
– roll control
– rudder control
– run-off control
– sampled-data control
– segregate control
– selectivity control
– self-acting control
– sensitivity control
– servo control
– slide control
– slope control
– statistical control
– steering control
– supervisory control
– take control
– technical control
– temperature control
– throttle control
– tone control
– touch control
– traffic control
– tuning control
– vertical control
– vibration control
– voice-activated control
– volume control
aerodynamic control surface — руль управления аэродинамический
automatic control equipment — аппаратура автоматического управления
automatic frequency control — частотная АПЧ, автоматическая настройка частоты
automatic gain control — <tech.> регулировка усиления автоматическая
automatic remote control — <comput.> телеавтоматика
automatic voltage control — регулирование напряжения автоматическое
bang-bang control system — <comput.> система управления релейная
cancelling control button — < railways> кнопка отмены
centralized traffic control — < railways> централизация
conditional transfer of control — условная передача управления
control aisle of a substation — коридор управления подстанции
control in pitch of airplane — продольное управление самолетом
control point adjustment — настройка точки регулирования, <engin.> задатчик
control tower service — <aeron.> служба диспетчерская
coordinated phosphate control — коррекционная обработка воды
differential control method — дифференцированный метод контроля
dispatcher's supervisory control — телеуправление диспетчерское
fire control computer — счетно-решающее устройство для управления артиллерийским огнем
fire control director — прибор управления артиллерийским огнем
floating control mode — <comput.> способ регулирования астатический
intermittent gain control — < radio> регулировка усиления временная
lateral control of airplane — поперечное управление самолетом
microprocessor control system — микропроцессорная система управления
pressure control instrument — <tech.> маностат
proportional control factor — <comput.> коэффициент пропорционального регулирования
range finder control — <geod.> метод дальномерно-базисный
reactor control system — <engin.> система управления и защиты
remote control interlocking — < railways> телецентрализация, централизация дистанционная
river control structure — <geol.> сооружение выправительное
servo control unit — <engin.> гидроусилитель
spray-type superheat control — впрысковое регулирование перегрева
supervisory control system — <comput.> автодиспетчер
thermostatic temperature control — ключевое термостатирование
volume range control — регулирование динамического диапазона
- 1
- 2
См. также в других словарях:
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Low-temperature thermal desorption — NOTE: This article is largely taken verbatim from the EPA s How to Evaluate Alternative Cleanup Technologies for Underground Storage Tank Sites . cite web last = first = authorlink = coauthors = date = url = http://www.epa.gov/OUST/cat/lttd.htm… … Wikipedia
High-temperature superconductivity — Unsolved problems in physics What causes superconductivity at temperatures above 50 kelvin? High temperature superconductors (abbreviated high Tc or HTS) are materials that have a superconducting transition temperature (Tc) above 30 K… … Wikipedia
Flammability limit — Flammability limits, also called flammable limits, or explosive limits give the proportion of combustible gases in a mixture, between which limits this mixture is flammable. Gas mixtures consisting of combustible, oxidizing, and inert gases are… … Wikipedia
Adiabatic flame temperature — In the study of combustion, there are two types of adiabatic flame temperature depending on how the process is completed: constant volume and constant pressure. The constant volume adiabatic flame temperature is the temperature that results from… … Wikipedia
Normal human body temperature — 98.6 redirects here. For other uses, see 98.6 (disambiguation). Normal human body temperature, also known as normothermia or euthermia, is a concept that depends upon the place in the body at which the measurement is made, and the time of day and … Wikipedia
Brightness temperature — is the temperature at which a blackbody in thermal equilibrium with its surroundings would have to be in order to duplicate the observed intensity of an object at a frequency u.This is a useful concept only for radiation that obeys the… … Wikipedia