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1 contact
1) контакт, касание, соприкосновение || контактировать, соприкасаться2) эл. контакт4) установление связи, вступление (вхождение) в связь || выходить на связь6) рлк обнаружение; захват ( цели)•-
a-contact
-
actual contact
-
adhesive contact
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adjustable contact
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adjustable touching contact
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alloyed contact
-
all-round contact
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all-wheel ground contact
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amateur contact
-
anvil contact
-
approach contact
-
arcing contact
-
arm contact
-
armature contact
-
auxiliary contact
-
back contact
-
ball contact
-
base contact
-
bayonet contact
-
b-contact
-
beam-lead contact
-
bellows contact
-
bifurcated contact
-
bimetallic contact
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blade contact
-
blocking contact
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body contact
-
bouncing contacts
-
bow contact
-
break contact
-
break-before-make contact
-
break-make contact
-
bridge-type contact
-
bridge contact
-
bridging contact
-
brush contact
-
bump contact
-
buried contact
-
butt contact
-
change-over contact with neutral position
-
change-over contact
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chattering contacts
-
circumferential contact
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closed contact
-
collector contact
-
concentrated contact
-
concentric contact
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conformal contact
-
continuous contact
-
convex-concave contact
-
convex-convex contact
-
coplanar contact
-
crimp contact
-
dead contact
-
direct refrigerant contact
-
discrete contact
-
distributed contact
-
docking ring contact
-
double tooth contact
-
double-break contact
-
double-throw contact
-
dressed contact
-
dry contact
-
dry-reed contact
-
EHD contact
-
elastic contact
-
elastic-plastic contact
-
elastohydrodynamic contact
-
electric contact
-
elementary contact
-
emitter contact
-
external contact
-
face contact
-
female contact
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ferreed contact
-
filter contact
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finger contact
-
firm contact
-
first contact
-
fixed contact
-
flight visual contact
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floating contact
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frictional contact
-
frictionally heated contact
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front contact
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grinding contact
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ground contact
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hard contact
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head-to-oxide contact
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heavily stressed contact
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hermaphroditic contact
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high-resistance contact
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indirect refrigerant contact
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initial contact
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initial docking contact
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injecting contact
-
instantaneous contact
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intercell ohmic contact
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interdigitated back contact
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internal contact
-
intimate contact
-
jack-in contact
-
keep-alive contact
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knife- type contact
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knife contact
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line contact
-
linear contact
-
liquid contact
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live contact
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localized contact
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locking contact
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loose contact
-
low-impedance contact
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low-level contact
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low-resistance contact
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lubricated contact
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magnetically operated contact
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make contact
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make-before-break contact
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make-break contact
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male contact
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mechanical contact
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mercury-wetted contact
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mid-position contact
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movable contact
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multiple contact
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multiple-point contact
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needle pinion contact
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nominal contact
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nonbridging contact
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nonrectifying contact
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nonshorted contact
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nonsliding contact
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normally closed contact
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normally open contact
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normally-off contact
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normally-on contact
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off-limit contacts
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ohmic contact
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one-pair contact
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physical contact
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pin contact
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pinpoint contact
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plastic contact
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plug contact
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plunger hermetically sealed contact
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point contact
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polarized contacts
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poor contact
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pressed contact
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press-fit contact
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pressure contact
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printed contact
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push-button contact
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push contact
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push-on contact
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quick-action contact
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radar contact
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radio contact
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rail contact
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real contact
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rear contact
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rectifying contact
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reed contact
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relay contact
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removable contact
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rendezvous contact
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resilient contact
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retaining contact
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rocking contact
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rolling contact
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rotor contact
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screen printed contact
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sealed contact
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sealing contact
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self-aligned contact
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self-holding contact
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self-registered contact
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sequence contacts
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shared contact
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short-circuit contact
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shorting contact
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single contact
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single tooth contact
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slider contact
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slow-action contact
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snap-action contact
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snap-on contact
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socket contact
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soft contact
-
solder contact
-
soldered contact
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solderless contact
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space station/spacecraft initial contact
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spitted contacts
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spring contact
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spring-loaded contact
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stake contact
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static contact
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steady state contact
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strip contact
-
surface contact
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switching contact
-
switch contact
-
target contact
-
thermocouple contact
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thermoelastic contact
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throwable contact
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tool/work contact
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train-to-wayside contact
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transfer contact
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transient thermoelastic contact
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transition contact
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tuning fork contact
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twin-break contact
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two-way contact
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uniform contact
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unlubricated contact
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vacuum sealed contact
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viscoelastic contact
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wet contact
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wiping contact
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wire-to-wire contact
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wrap contact -
2 set
2) совокупность; множество6) установка; регулирование; настройка; наладка || устанавливать; регулировать; настраивать; налаживать7) юстировка || юстировать9) схватывание; затвердевание; отверждение || схватывать(ся); затвердевать; отверждать(ся)10) стабилизация; фиксация (красителя, нити) || стабилизировать; фиксировать (краситель, нить)11) крепление || закреплять13) накрывка ( штукатурки) || наносить накрывку14) глубина погружения сваи при ударе молота15) разводка ( зубьев пилы) || разводить ( зубья пилы)16) радиостанция17) радиоприёмник18) телевизионный приёмник, телевизор19) вчт. установка в состояние "1" || устанавливать в состояние "1"20) тлв, кфт. декорация21) полигр. набор || набирать22) полигр. сет ( единица измерения ширины знака)23) закреплять, высыхать( о печатной краске)24) полигр. комплект, гарнитура27) замешивать ( тесто)•set after break — остаточное удлинение при разрыве;to set for — регулировать; устанавливать;to set free — выделять в свободном виде;to set solid — затвердевать; отверждать(ся);to set up — монтировать; собирать; устанавливать (напр. систему);to strike the set — разбирать декорацию-
abstract set
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ac welding set
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affected set
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airborne set
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arc-welding set
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assembly set
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axis set
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basic set of operations
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battery-booster set
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bearing set
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blasting set
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board set
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bottom water set
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bounded set
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bridging set
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call-back telephone set
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card set
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cascade set
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cataloged data set
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character set
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charging set
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checkout test set
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checkpoint data set
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chip set
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Christmas-tree set
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closed set
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code set
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color separation set
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color television set
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compression set
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concatenated data set
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concrete set
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connected set
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connector mated set
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conventional set
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correction tool set
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countable set
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crystal set
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customer set
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data set
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dc welding set
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desk set
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diesel-generator set
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dip-angle set
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direct data set
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domestic television set
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domestic set
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double suspension set
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double tension set
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double-dipole set
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drawing set
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dual-frequency set
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duplicate suspension set
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duplicate tension set
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electronic altimeter set
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EM set
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emergency set
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empty set
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engine driven welding set
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exciter set
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extension set
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facsimile set
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false set
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field set
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final set
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finite set
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flash set
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flush hole casting set
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four-car articulated set
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four-roll set
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frequency changer set
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fuzzy set
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gear set
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generator set
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grab set
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hand set
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heading set
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hesitation set
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hole set
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horizontal-loop set
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house set
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hybrid set
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hydroelectric generating set
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indexed sequential data set
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infinite set
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initial set
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ink set
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instruction set
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insulator set
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interrogator set
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key set
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lining set
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long-wire set
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magnetotelluric set
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mask set
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microprocessor set
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module set
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mold set
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motion-picture set
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motor-generator set
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moving-source set
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navigation set
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noise-immune set
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nontemporary data set
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null set
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open set
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operator's head set
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order set
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ordered set
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pack set
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parallel motion drafting set
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partitioned data set
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permanent set
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petrol-electric generating set
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pile set
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planetary gear set
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plaster set
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portable test set
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projection set
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pumped-storage generating set
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pump-storage generating set
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push-button set
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quick set
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radio set
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receiving set
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receiving tank set
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rectifier welding set
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refraction set
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relay set
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resistance set
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resistivity set
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rivet set
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rotary welding set
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rubber set
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satellite communications set
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satellite communication set
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saw set
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send/receive set
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set of blades
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set of contacts
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set of curves
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set of equations
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set of inks
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set of insulators
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set of passes
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set of pulleys
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set of stopmotion
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shaft set
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SIGMA set
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single suspension set
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single tension set
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singular set
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six-roll set
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solar powered set
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solar set
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solution set
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spring set
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standby set
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steam-electric generating set
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stockhouse set
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stringer set
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subpermanent set
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subscriber set
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tab set
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telegraph set
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telephone set
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television set
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telluric set
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temporary data set
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terminating set
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test set
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thermoelectric generating set
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three-piece set
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timber set
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time signal set
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tool set
-
transformer-rectifier set
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transmitting set
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turbine-generator set
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turbine set
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two-car set
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universal set
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user's set
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warehouse set
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welding set
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wind-electric set
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withdrawal-roll set
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working set -
3 arc fault
- "дуговая" неисправность
"дуговая" неисправность
Неисправность, приводящая к возникновению дуги.
[Интент]Параллельные тексты EN-RU
An arc fault occurs when there is a reduction in the dielectric strength of the insulating means (air, in LV switchboards) interposed between two or more conducting elements at different potential.
The arc is generated at the moment when, due to the high ionization of the air, there is a breakdown of the dielectric of the medium and the consequent flow of the current through it.
In an arc fault the highest stresses are of thermal type and proportional to RaI2 owing to the high value taken by the arc resistance Ra; this because the fault current flows in a medium which is always insulating, even if extremely ionized.
Such stresses manifest themselves essentially in the form of:
• high thermal gradients caused by the quick and intense rise in the air temperature;
• high pressure gradients in the form of pressure wave;
• high ionization of the air with consequent reduction of its insulating strength.
Generally speaking, in a LV assembly designed and tested according to the Standard IEC 60439-1 an arc fault is not very likely to occur; however, should it occur, the consequences would be extremely harmful to both the equipment as well as the personnel (see Chapters 2.2 and 2.3).
The causes of an arc fault can be both technical as well as non technical; among the latter the most frequent are the following:
• personnel errors, above all during maintenance operations;
• installation operations not sufficiently accurate;
• inadequate maintenance, above all in the case of severe environmental conditions.
Among the technical causes of an arc fault in a LV assembly the following ones are to be remembered:
• breakdown of the insulation essentially in the proximity of the supports of the busbars and of the plug-in contacts of the withdrawable units (75% of cases);
• overvoltages generating disruptive discharges between the points at minimum clearances (15% of cases);
• constructional defects of the apparatus (10% of cases).
[ABB]К «дуговой» неисправности, относится неисправность, обусловленная уменьшением электрической прочности изолирующей среды (воздуха в НКУ) между двумя или более токоведущими частями, находящимися под разными электрическими потенциалами.
Дуга образуется в тот момент, когда вследствие высокой ионизации воздуха происходит пробой изолирующей среды, вследствие чего через нее начинает протекать электрический ток.
Проявлением дуговой неисправности, является тепловое воздействие, пропорциональное RaI2 и достигающее большого значения вследствие большого сопротивления дуги Ra.
Дело в том, что ток дуги протекает через среду, которая всегда является изолирующей, пусть даже и чрезвычайно ионизированной.
Указанные воздействия очевидны сами по себе особенно в форме:
• теплового градиента температуры, вызванного быстрым и интенсивным подъемом температуры воздуха;
• высоким градиентом давления в форме волны давления;
• высокой ионизацией воздуха с последующим уменьшением электрической прочности.
Вообще говоря, в НКУ, разработанных и испытанных в соответствии с требованиями стандарта МЭК 60439-1 «дуговая» неисправность маловероятна. Однако, если дуга все таки возникнет, ее последствия буду чрезвычайно тяжелыми как для оборудования, так и для персонала (см. п. 2.2 и 2.3).
Причина дуговой неисправности может носить как технический, так и нетехнический характер. Среди последних наиболее часто возникают следующие:
• ошибки персонала, совершаемые главным образом во время технического обслуживания;
• недостаточно аккуратное выполнение монтажа;
• ненадлежащее техническое обслуживание, главным образом при эксплуатации НКУ в тяжелых условиях окружающей среды.
Среди технических причин дуговой неисправности в НКУ необходимо помнить о следующих:
• пробой изоляции, особенно вблизи опор шин и втычных контактов выдвижных частей НКУ (75 % случаев);
• перенапряжения, вызываемые разрушительными электрическими разрядами между точками с минимальными зазорами (15 % случаев);
• конструктивные дефекты аппаратуры (10 % случаев).
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > arc fault
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