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41 standard-pattern printed circuit board
<el> ■ Standardleiterplatte fEnglish-german technical dictionary > standard-pattern printed circuit board
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42 unassembled printed circuit board
<el> ■ unbestückte Leiterplatte fEnglish-german technical dictionary > unassembled printed circuit board
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43 double-sided printed circuit board
n ELECTRON doppelt kaschierte Leiterplatte fDictionary English-German Informatics > double-sided printed circuit board
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44 multilayer printed circuit board
n ELECTRON Mehrschicht-Leiterplatte f, Mehrlagen-Leiterplatte fDictionary English-German Informatics > multilayer printed circuit board
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45 printed wiring board
English-German dictionary of Electrical Engineering and Electronics > printed wiring board
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46 printed circuit
<el> (gen.) ■ gedruckte Schaltung f ; gedruckter Schaltkreis m rar ; gedruckte Verdrahtung f obs.rar -
47 printed circuit
noun(Electronics) gedruckte Schaltung* * *print·ed cir·cuitnPCnprint·ed cir·cuit boardn[ˌprɪntɪdˈ-]* * *noun(Electronics) gedruckte Schaltung -
48 plated-through hole multilayer printed circuit p.c. board
plated-through hole multilayer printed circuit p.c. board durchkontaktierte Mehrlagenleiterplatte fEnglish-German dictionary of Electrical Engineering and Electronics > plated-through hole multilayer printed circuit p.c. board
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49 printed board
English-German dictionary of Electrical Engineering and Electronics > printed board
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50 printed
adjective1) (Printing) gedrucktprinted characters or letters — Druckbuchstaben
2) (written like print) in Druckschrift3) (published) veröffentlicht [Artikel, Roman, Ansichten usw.]4) (Textiles) bedruckt [Stoff]* * *['prIntɪd]adjDruck-, gedruckt; (= written in capitals) in Großbuchstaben; fabric bedrucktprinted matter/papers — Büchersendung f
the printed word —
the printed book the printed page — das gedruckte or veröffentlichte Buch die gedruckte Seite
in printed form —
* * *adjective1) (Printing) gedrucktprinted characters or letters — Druckbuchstaben
2) (written like print) in Druckschrift3) (published) veröffentlicht [Artikel, Roman, Ansichten usw.]4) (Textiles) bedruckt [Stoff]* * *adj.abgedruckt adj.bereits gedruckt adj.gedruckt adj. -
51 flexible printed board
English-German dictionary of Electrical Engineering and Electronics > flexible printed board
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52 flexible board
English-German dictionary of Electrical Engineering and Electronics > flexible board
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53 through-hole board
English-German dictionary of Electrical Engineering and Electronics > through-hole board
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54 through-hole plated board
English-German dictionary of Electrical Engineering and Electronics > through-hole plated board
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55 PCB
PCB1[ˌpi:si:ˈbi:]PCB2[ˌpi:si:ˈbi:]PCB3[ˌpi:si:ˈbi:]poly·chlo·rin·at·ed bi·phen·yl[pɒlɪˌklɔ:rɪneɪtɪdbaɪˈfenɪl, AM pɑ:lɪˌklɔ:rɪneɪt̬ɪdbaɪˈfenəl]nprint·ed cir·cuitnPCnprint·ed cir·cuit boardn[ˌprɪntɪdˈ-]* * *abbr See: of printed circuit board* * * -
56 PCB
abbr COMP ↑ page control block Seitensteuerblock m, COMP ↑ process control block Verarbeitungssteuerblock m, COMP ↑ program communication block Programmkommunikationsblock m, COMP ↑ program control block Programmsteuerblock m, ELEC ENG ↑ printed circuit board , ELECTRON ↑ printed circuit board Leiterplatte f, Platine f -
57 длительный допустимый ток
- Strombelastbarkeit, f
- Dauerstrombelastbarkeit, f
(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
Русско-немецкий словарь нормативно-технической терминологии > длительный допустимый ток
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58 печатная плата
adj1) gener. Steuerprint2) comput. Tafel mit gedruckter Schaltung, gedruckte Leiterplatte, Elektronik3) eng. Leiterplatte gedruckte, Print, Printed Circuit Board, Printplatte, Stromkreiskarte, gedruckte Leiterplatte PCB, gedruckte Platine, gedruckte Platte, gedruckte Schaltung, gedruckte Schaltungsplatte4) electr. Druckplatte, Platte mit gedruckter Schaltung, gedruckte Karte, Leiterkarte (http://de.wikipedia.org/wiki/Leiterplatte), Platine, Leiterplatte5) IT. Schreibplatte, gedruckte Tafel6) microel. Druckschaltungsplatte, PC-Board7) autom. Elektronikplatine -
59 PC
abbreviation1) (Brit.) = academic.ru/56528/police_constable">police constable Wachtm.2) = personal computer PC3) = politically correct politisch korrekt* * *[,pi: 'si:]( abbreviation)1) (personal computer.)2) (police constable.)3) (politically correct.)* * *PC1[ˌpi:ˈsi:]PC2[ˌpi:ˈsi:]PC3[ˌpi:ˈsi:]PC4[ˌpi:ˈsi:]PC5[ˌpi:ˈsi:]PC6[ˌpi:ˈsi:]PC7[ˌpi:ˈsi:]PC8[ˌpi:ˈsi:]PC9[ˌpi:ˈsi:]per·son·al com·ˈput·ernPCn Personal Computer m, PC mpo·lice ˈcon·sta·blenPCpo·liti·cal cor·ˈrect·nessnPCn no pl politische Korrektheitpo·liti·cal·ly cor·ˈrectPC politisch korrektprint·ed cir·cuitnPCnprint·ed cir·cuit boardn[ˌprɪntɪdˈ-]Privy ˈCoun·cilnPCprivy ˈcoun·cil·lornPC* * *(Brit)1) abbrPC Plod (inf) — Streifenpolizist( in) m(f)
See:2)See:3)See:4) abbr of personal computer PC m5)See:* * *PC abk5. postcard* * *abbreviation1) (Brit.) = police constable Wachtm.2) = personal computer PC3) = politically correct politisch korrekt -
60 PCB
[ˌpi:si:ʼbi:] n
См. также в других словарях:
printed circuit board — printed circuit boards N COUNT A printed circuit board is an electronic circuit in which some of the parts and connections consist of thin metal lines and shapes on a thin board. [TECHNICAL] … English dictionary
printed circuit board — UK US noun [C] ► IT the board on which a printed circuit is fixed … Financial and business terms
printed circuit board — noun The combined circuit and supporting base • • • Main Entry: ↑print … Useful english dictionary
Printed Circuit Board — [dt. »gedruckte Leiterplatte«], Platine … Universal-Lexikon
Printed circuit board — Part of a 1983 Sinclair ZX Spectrum computer board; a populated PCB, showing the conductive traces, vias (the through hole paths to the other surface), and some mounted electrical components A printed circuit board, or PCB, is used to… … Wikipedia
printed circuit board — spausdintinė plokštė statusas T sritis automatika atitikmenys: angl. printed board; printed circuit board; printed plate vok. gedruckte Schaltkarte, f; Printplatte, f rus. печатная плата, f; плата с печатным монтажом, f pranc. carte imprimée, f;… … Automatikos terminų žodynas
printed circuit board — daugiasluoksnė spausdintinė plokštė statusas T sritis automatika atitikmenys: angl. composite printed board; multilayer board; multilayer card; printed circuit board vok. Mehrlagen Leiterplatte, f; Mehrlagenleiterplatte, f; Mehrlagenplatte, f;… … Automatikos terminų žodynas
printed circuit board — spausdintinė plokštė statusas T sritis chemija apibrėžtis Izoliacinė plokštė, kurios paviršiuje yra laidininkai ir kontaktinės aikštelės radijo elementams tvirtinti. atitikmenys: angl. printed circuit board; printed circuit plate rus. печатная… … Chemijos terminų aiškinamasis žodynas
Printed circuit board milling — is the process of removing areas of copper from a sheet of printed circuit board material to recreate the pads, signal traces and structures according to patterns from a digital circuit board plan known as a layout file. Similar to the more… … Wikipedia
printed circuit board assembly — spausdintinių plokščių surinkimas statusas T sritis radioelektronika atitikmenys: angl. printed circuit board assembly vok. Leiterplattenbestückung, f rus. сборка печатных плат, f pranc. assemblage des cartes imprimées, m … Radioelektronikos terminų žodynas
printed circuit board — noun a thin plate or card on which chips, wiring, and other electronic components are placed to create an assembly unit. Abbrev.: PCB Also, printed circuit. {from the original production method which employed etching a metallic coating on a thin… …