... requirements for screw-type and screwless-type clamping units for electrical copper connectors - Part 2: Particular requirements for conductors from 35 mm2 up to 300 mm2 IEC 61 195, Double-capped fluorescent ... rated current I N 3.16 time t E time taken for an a.c rotor or stator winding, when carrying the initial starting current IA, to be heated up to the limiting temperature from the temperature reached ... atmospheres - Part 4: Method of test for ignition tempera ture IEC 60 079 -1 Electrical apparatus for explosive gas atmospheres - Part 11: Intrinsic safety 'i' 1, IEC 60 079 - 17, Electrical apparatus for...
Ngày tải lên: 25/12/2013, 10:41
... Management: Bo Galford Group Manager, Courseware Infrastructure: David Bramble General Manager: Robert Stewart Module 7: Business Logic for Disconnected Components iii Instructor Notes Presentation: ... components Recorder The Recorder packages the call as part of a message to the server and puts it in a queue The Recorder records all of the method calls for an object In its role as proxy for the server ... Coordinator: Eric Wagoner Graphic Artist: Scott Serna Test Lead: Eric Myers Manufacturing Manager: John Williams Group Product Manager: Juan Fernando Rivera Lead Product Manager, System Services...
Ngày tải lên: 27/10/2013, 07:15
Tài liệu Module 7: Business Logic for Disconnected Components ppt
... Management: Bo Galford Group Manager, Courseware Infrastructure: David Bramble General Manager: Robert Stewart Module 7: Business Logic for Disconnected Components iii Instructor Notes Presentation: ... components Recorder The Recorder packages the call as part of a message to the server and puts it in a queue The Recorder records all of the method calls for an object In its role as proxy for the server ... Coordinator: Eric Wagoner Graphic Artist: Scott Serna Test Lead: Eric Myers Manufacturing Manager: John Williams Group Product Manager: Juan Fernando Rivera Lead Product Manager, System Services...
Ngày tải lên: 10/12/2013, 17:15
iec 60079-1 electrical apparatus for explosive gas atmospheres - flameproof enclosures ''''''''d''''''''
... cylindrical part is less than or equal to 0,2 mm for electrical apparatus of Groups I and IIA, 0,15 mm for electrical apparatus of Group IIB, or 0,1 mm for electrical apparatus of Group IIC (reduced ... partial cylindrical surfaces 5.2 .7 Additional requirements for joints of electrical apparatus of Group IIC Flanged joints are not permitted for electrical apparatus of Group IIC intended for ... general-purpose metric screw threads Tolerances Part 1: Principles and basic data ISO 965-3:1998, ISO general-purpose metric screw threads Tolerances Part 3: Deviations for constructional threads...
Ngày tải lên: 25/12/2013, 10:37
iec 60079-2 electrical apparatus for explosive gas atmospheres - pressurized enclosures ''p''p
... Spark and particle barrier required, see 5.8 Spark and particle barrier required, see 5.8 Spark and particle barrier required; see 5.8 Spark and particle barrier required, see 5.8 Preventing incandescent ... et particules prescrite, voir 5.8 Barrière contre étincelles et particules prescrite, voir 5.8 Barrière contre étincelles et particules prescrite, voir 5.8 Barrière contre étincelles et particules ... for a door or cover that requires a tool to open Warning, see 6.2 b) Warning, see 6.2 b) No requirement Safety device for a door or cover that does not require a tool to open Interlock, see 7. 12...
Ngày tải lên: 25/12/2013, 10:37
iec 60079-5 electrical apparatus for explosive gas atmospheres - powder filling ''q''
... protection are not permitted NOTE - Requirements for cells and batteries are under consideration 4 .7 Temperature limitations Each powder-filled electrical apparatus, part of electrical apparatus or Ex ... the apparatus is designed for a short-circuit current different from 500 A, according to 4.8.3, for example “Permitted supply short-circuit current: 35 A” Copyright International Electrotechnical ... usine Ne pas l'ouvrir»; STD-IEC b0 077 -5-ENGL I1 977 60 079 -5 O IEC: 19 97 4894 873 0b940 97 723 -23- 5.1.5 Maximum temperatures Where fuses are used as protective devices for temperature limitation,...
Ngày tải lên: 25/12/2013, 10:38
iec 60079-6 electrical apparatus for explosive gas atmospheres - oil-immersion ''o''
... IEC 60 079 -0 and related standards is given in the foreword of this standard IEC 60 079 -0: Electrical apparatus for explosive gas atmospheres – Part 0: General requirements IEC 60 079 -7: Electrical ... pour usages électriques 60 079 -6 IEC:1995 – 11 – IEC 60588-2: Askarels for transformers and capacitors – Part 2: Test methods IEC 60836: Specifications for silicone liquids for electrical purposes ... or Fax to: IEC/CSC at +41 22 919 03 00 Thank you for your contribution to the standards-making process Nicht frankieren Ne pas affranchir A Prioritaire Non affrancare No stamp required R PONSE...
Ngày tải lên: 25/12/2013, 10:38
iec 60079-10 electrical apparatus for explosive gas atmospheres - classification of hazardous areas
... atmospheric diffusion Special regard therefore needs to be paid to the topography of any site under consideration and also to surrounding areas in order to determine where gases or vapours might ... nécessaire dès lors de prendre les précautions appropriées pour garantir la sécurité On pourra utiliser avec prudence la présente norme pour ces autres sources d'inflammation NOTE Des brouillards ... 60 079 -4:1 975 , Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for ignition temperature IEC 60 079 -4A:1 970 , First supplement to IEC 60 079 -4 (1966), Electrical apparatus...
Ngày tải lên: 25/12/2013, 10:41
iec 60079-11 electrical apparatus for explosive gas atmospheres - intrinsic safety ''i''
... International Standards IEC 60 079 -0:1998, Electrical apparatus for explosive gas atmospheres Part 0: General requirements IEC 60 079 -7: 1990, Electrical apparatus for explosive gas atmospheres ... disregarded for temperature classification purposes For other applications, the temperature classification of copper wiring of printed boards shall be determined from table Manufacturing tolerances ... courant, par exemple des circuits pour r aliser des sources auxiliaires de puissance; 3) lorsque le matộriel simple doit conserver l'isolement par rapport la terre du circuit de sộcuritộ intrinsốque,...
Ngày tải lên: 25/12/2013, 10:41
iec 60079-14 electrical apparatus for explosive gas atmospheres - electrical installations in hazardous areas
... any relevant calculation, e.g for purging rates for instruments or analyser houses; – if repairs are to be carried out by the user or a repairer, information necessary for the repair of the electrical ... la terre, toutes les masses peuvent être raccordées la terre (par exemple, pour assurer la compatibilité électromagnétique) ou non raccordées la terre Les transformateurs de sécurité pour la ... time taken for an a.c rotor or stator winding, when carrying the initial starting current I A , to be heated up to the limiting temperature from the temperature reached in rated service at the...
Ngày tải lên: 25/12/2013, 10:42
iec 60079-15 electrical apparatus for explosive gas atmospheres - construction, test and marking of type of protection n electrical apparatus
... Test for screw lampholders 139 33.9 Test for starter holders for luminaires 141 33.10 Tests for electronic starters for tubular fluorescent lamps and for ignitors for high pressure ... controlgear Part 2-4: Particular requirements for d.c supplied electronic ballasts for general lighting IEC 613 47- 2 -7, Lamp controlgear Part 2 -7: Particular requirements for d.c supplied electronic ... 60 079 -0 Elimination of IEC 60 079 -2 Air gap spark test requirement added for motors over 100 kW Added risk assessment tables for motors over kV and over 100 kW Requirements changed for motors...
Ngày tải lên: 25/12/2013, 10:42
Electrical studies for trades,4ed
... 1-4354-6982-8 Production Director: Wendy Troeger Production Manager: Mark Bernard Content Project Manager: Christopher Chien Senior Art Director: David Arsenault Technology Project Manager: Christopher Catalina ... study of alternating current direct current alternating current unidirectional bidirectional Electrical Studies for Trades EARLY ELECTRICAL HISTORY repulsion attraction Although the practical use ... generally represented by the letter P, for power, or W, for watts A very important concept that should be understood concerning power in an electrical circuit is that before true power, or watts,...
Ngày tải lên: 30/12/2013, 22:11
Top 7 Chrome Extensions for Content Managers
... Workbench helps Content Managers track multiple pages for specific keywords and compares their rankings over time This is great when tracking competitors and trying to stay on top of page ranking ... Focusd: It can be easy to get lost for over an hour reading interesting Wikipedia articles; one article always leads into another more interesting article Stay Focusd helps prevent this without ... customers are getting a great experience SEO SERP Workbench: While SEOmoz’ Mozbar will show a given page’s search engine optimizations or why a page is ranking highly in search results, SEO SERP...
Ngày tải lên: 09/02/2014, 20:33
ELECTRICAL INSULATION FOR ROTATING MACHINES ppt
... 274 274 274 275 275 275 275 275 276 276 277 277 277 278 278 278 278 278 278 278 279 279 279 279 279 279 280 280 280 281 281 281 282 xiv CONTENTS 13 In-Service Monitoring of Stator and Rotor Windings ... The reader is referred to any book on motors and generators, for example references 1.1 to 1.3 The stator core in a generator concentrates the magnetic field from the rotor on the copper conductors ... hydrogenerator, compared to one or two pole pairs on a turbogenerator Such a large number of pole pairs requires a large rotor diameter in order to mount all the poles Hydrogenerators have been...
Ngày tải lên: 07/03/2014, 08:20
ISAT Sample Book 7: Sample Items for Reading,Mathematics, and Science 2011 doc
... be inaccurate Reader makes little or no interpretation of the text Reader uses no references, or the references are inaccurate Reader’s response is insufficient to show that criteria are met 22 ... B Rectangular prism Square pyramid Triangular prism Triangular pyramid C ≥D The area of rectangle N is half the area of rectangle M The perimeter of rectangle N is equal to the perimeter of rectangle ... A 1 .7. 10 Locate and interpret information found in headings, graphs, and charts A 1 .7. 17 Summarize a story or nonfiction passage, or identify the best summary C 1 .7. 17 Summarize a story or nonfiction...
Ngày tải lên: 08/03/2014, 12:20
Design of Electrical Services for Buildings fourth edition docx
... catalogue record for this book is available from the British Library Library of Congress Cataloging in Publication Data Rigby, Barrie Design of electrical services for building/Barrie Rigby.—4th ... earth-free Design of electrical services for buildings 10 Cooker control unit Electric cookers take a much larger current than most other domestic appliances They therefore require heavier switches ... mining electrical engineers Group 11A is for gases with properties similar to propane and require more than 200µjoules of energy to ignite Group IIB is for gases with properties similar to ethylene...
Ngày tải lên: 23/03/2014, 08:20
Electrical safety for entertainers docx
... double wound transformer to connect 110-125 volt equipment Transformer RCD or ground fault circuit interruptor (not needed if transformer is an isolating transformer to BS 3535/IEC 74 2 and only ... America as a ground fault circuit interruptor) connected into the transformer secondary circuit 12 Transformer output(s) should have suitable excess current protection (fuses or preferably circuit ... 1992 17 Electricity at Work Regulations 1989 17 Enforcement 17 References 17 Checklist 18 Further information 20 INTRODUCTION Electric shocks can kill Precautions Entertainers have been injured...
Ngày tải lên: 23/03/2014, 23:20
Direct Current Measurement Based Steer-By-Wire Systems for Realistic Driving Feeling doc
... applied on motor shaft because of the current-torque relationship of DC motors 1025 A current sensor unit is connected to RW's motor driver and RW's motor in series for measuring current signals ... steer-by-wire structure When the RW DC motor actuates the roadwheels accordingly, a proportional current signal inside the motor driver of occurs at the same time Fortunately, the value of the current ... 2003, proposed a feedback force calculation scheme based on reference model of HW with lateral force measured from a torque sensor For this, there is no need of the second torque sensor at RW while...
Ngày tải lên: 03/04/2014, 10:20
IEC 62086 1 electrical apparatus for explosive gas atmospheres electrical resistance trace he
... which is normally expressed in watts per metre or watts per square metre 3.23 rated voltage voltage to which operating and performance characteristics of trace heaters are referred 3.24 routine ... part of a representative trace heater unit; see 5.1.1 4.4 Circuit protection requirements for branch circuits The minimum requirements for trace heating systems for use in hazardous areas are ... constructed so as to ensure electrical, thermal and mechanical durability and reliable performance so that, in normal use, it poses no danger to the user or the surroundings Electrical resistance...
Ngày tải lên: 04/04/2014, 12:29
mancini, r. (2002). op amps for everyone
... the resistor values must decrease, and resistor value decreases reduce input current errors, while supply current increases When the resistor values get low enough, it becomes hard for another ... RF R1 VCC RG VREF 0.01 µF _ R2 VOUT + RL VIN Figure 4–13 Schematic for Case 2: VOUT = +mVIN – b V OUT + V IN ǒ Ǔ ǒ Ǔǒ RF ) RG ) R1 ø R2 R2 * V REF R1 ) R2 RG ) R1 ø R2 Ǔ RF RG ) R1 ø R2 (4– 37) ... R TH + V IN R1 ǒ (3– 17) Ǔ R ) R ø R 4Ǔ R3 ) R4 + R4 R1 ǒ Ǔ R3 ) R4 R4 (3–18) Algebraic manipulation yields Equation 3–19 * V OUT + V IN R2 ) R3 ) R 2R R4 (3–19) R1 Specifications for the circuit...
Ngày tải lên: 18/04/2014, 12:29
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