Electrical studies for trades,4ed

... Alternating Current Formulas 560 Appendix D Greek Alphabet 573 Appendix E Answers to Practice Problems 574 Glossary 584 Index 595 iv Contents 2 Electrical Studies for Trades EARLY ELECTRICAL HISTORY Although ... automotive repair, electrical apprenticing, carpentry, building maintenance, construction work, and appliance repair. Electrical Studies for Trades, 4th Edi- tion,...

Ngày tải lên: 30/12/2013, 22:11

... 19). Floating glands are not permitted for electrical apparatus of Group IIC. L Grooves for grease seals Figure 17 – Example of cylindrical joint for shaft of rotating electrical machine IEC 1942/03 Copyright ... maximum gap for Group IIC enclosures Maximum gap mm Type of joint Minimum width of joint L mm For a volume cm 3 V ≤ 100 For a volume cm 3 100 <V ≤ 500 For a volu...

Ngày tải lên: 25/12/2013, 10:37

... enclosure. For type px, the actual flow shall be monitored. For type py or type pz, the flow may be deduced, for example, from the enclosure pressure and a defined orifice at the outlet. For type ... COMMISSION ____________ ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES – Part 2: Pressurized enclosures "p" FOREWORD 1) The IEC (International Electrotechnical Commissio...

Ngày tải lên: 25/12/2013, 10:37

... Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:09:15 MSTNo reproduction or networking permitted without license from ... Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:09:15 MSTNo reproduction or networking perm...

Ngày tải lên: 25/12/2013, 10:38

... 60079-6  IEC:1995 – 11 – IEC 60588-2: Askarels for transformers and capacitors – Part 2: Test methods IEC 60836: Specifications for silicone liquids for electrical purposes ISO 2719: Petroleum products ... COMMISSION ____________ ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES – Part 6: Oil immersion "o" FOREWORD 1) The IEC (International Electrotechnical Commission...

Ngày tải lên: 25/12/2013, 10:38

... Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:10:58 MSTNo reproduction or networking permitted without license from ... Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:10:58 MSTNo reproduction or networking perm...

Ngày tải lên: 25/12/2013, 10:41

... (1966), Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for ignition temperature IEC 60079-20:1996, Electrical apparatus for explosive gas atmospheres – Part 20: Data for flammable ... Vocabulary (IEV) – Chapter 426: Electrical apparatus for explosive atmospheres IEC 60079-4:1975, Electrical apparatus for explosive gas atmospheres – Part 4: Meth...

Ngày tải lên: 25/12/2013, 10:41

... in parts of electrical apparatus conforming to the constructional require- ments of this standard 3.8 non-countable fault fault which occurs in parts of electrical apparatus not conforming to ... of causing ignition of a given explosive gas atmosphere 3.2 electrical apparatus assembly of electrical components, electrical circuits or parts of electrical circuits normally contained...

Ngày tải lên: 25/12/2013, 10:41

... Apparatus for use in zone 2 The following electrical apparatus may be installed in zone 2: a) electrical apparatus for zone 0 or zone 1; or b) electrical apparatus designed specifically for zone 2 (for ... Specification for conduits for electrical installations – Part 2: Particular specifications for conduits – Section One: Metal conduits IEC 60614-2-5: 1992, Specificatio...

Ngày tải lên: 25/12/2013, 10:42

... protection shall be marked according to Clause 35. NOTE 1 For requirements for rotating electrical machines, see Clause 17. NOTE 2 For requirements for non-sparking low power apparatus, see Clause 23. ... applies. IEC 60034 (all parts), Rotating electrical machines IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance IEC 60034-5, Rotating electrical...

Ngày tải lên: 25/12/2013, 10:42