iec 60079-15 electrical apparatus for explosive gas atmospheres - construction, test and marking of type of protection n electrical apparatus

... application to IEC 6007 9-1 5 Type of protection nC Non sparking apparatus nA and nA nL Restricted breathing apparatus nR Energy limited apparatus nL Associate d energy limited apparatus ... publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC publicatio...

Ngày tải lên: 25/12/2013, 10:42

... promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, ... incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC publications The technical content of IEC publi...

Ngày tải lên: 25/12/2013, 10:37

... promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International ... publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC publications The technical con...

Ngày tải lên: 25/12/2013, 10:37

... Copyright International 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 ... Copyright International Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:09:15 MSTNo reproduct...

Ngày tải lên: 25/12/2013, 10:38

... during the expansion and contraction of the internally contained liquid during normal operation, for example, by means of an expansion vessel 3.4 non-sealed apparatus apparatus designed and constructed ... document (including any amendments) applies. NOTE Information about the revision of IEC 6007 9-0 and related standards is given in the foreword of this standard. IEC...

Ngày tải lên: 25/12/2013, 10:38

... Copyright International 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 ... Copyright International Electrotechnical Commission Provided by IHS under license with IEC Licensee=Technip Abu Dabhi/5931917101 Not for Resale, 02/12/2006 05:10:58 MSTNo reproduct...

Ngày tải lên: 25/12/2013, 10:41

... conditions. 4.3 Type of zone The likelihood of the presence of an explosive gas atmosphere and hence the type of zone depends mainly on the grade of release and the ventilation. NOTE 1 A continuous ... effectiveness of the ventilation in controlling dispersion and persistence of the explosive gas atmosphere will depend upon the degree and availability of ve...

Ngày tải lên: 25/12/2013, 10:41

... connecting elements which are not independent Figure 2 – Examples of independent and non-independent connecting elements IEC 276/99 IEC 277/99 Copyright International Electrotechnical Commission Provided ... part of IEC 60079 specifies the construction and testing of intrinsically safe apparatus, intended for use in potentially explosive atmospheres and for associa...

Ngày tải lên: 25/12/2013, 10:41

... relevant IEC standards, for example IEC 60364 as regards electrical installation requirements, and also refers to IEC 6007 9-0 and its associated standards for the construction, testing and marking ... important part of hazardous area installations and the user’s attention is drawn to IEC 6007 9-1 7 and IEC 6007 9-1 9 for further information concerning...

Ngày tải lên: 25/12/2013, 10:42

... publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC publications The technical content of IEC publications ... read in conjunction with IEC 6208 6-2 : Electrical apparatus for explosive gas atmospheres – Electrical resistance trace heating – Part 2: Application guide for...

Ngày tải lên: 04/04/2014, 12:29