1、BSI Standards PublicationExplosive atmospheresPart 1: Equipment protection by flameproof enclosures “d”BS EN 60079-1:2014National forewordThis British Standard is the UK implementation of EN 60079-1:2014. It is identical to IEC 60079-1:2014. It supersedes BS EN 60079-1:2007 which is withdrawn.BSI, a
2、s a member of CENELEC is obliged to publish BS EN 60079-1 as aBritish Standard. However, attention is drawn to the fact that during thedevelopment of this European Standard, the UK voted against its approvalas a European Standard. The reason for this disapproval was that the passcriteria for the tes
3、t relating to cemented joints in subclause 6.1.2 is con-sidered to be not as robust when compared with the previously published edition.Other National Standard Bodies have also recorded a negative vote on thedocument citing the identical concern in the difference between the 2007edition and the 2014
4、 edition. Many manufacturers had no difficulty incomplying with the previous requirement when choosing appropriate ce-ments and the UK committee did not see any justification for revising the requirement.The UK participation in its preparation was entrusted to TechnicalCommittee EXL/31, Equipment fo
5、r explosive atmospheres.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.P
6、ublished by BSI Standards Limited 2014ISBN 978 0 580 75475 3ICS 13.230; 29.260.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2014.Amendments/corrige
7、nda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60079-1:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60079-1 October 2014 ICS 29.260.20 Supersedes EN 60079-1:2007 English Version Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures “d“ (IEC 60
8、079-1:2014) Atmosphres explosives - Partie 1: Protection de lappareil par enveloppes antidflagrantes “d“ (CEI 60079-1:2014) Explosionsgefhrdete Bereiche - Teil 1: Gerteschutz durch druckfeste Kapselung “d“ (IEC 60079-1:2014) This European Standard was approved by CENELEC on 2014-08-01. CENELEC membe
9、rs are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applicatio
10、n to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC
11、Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland
12、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisch
13、es Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60079-1:2014 E BS EN 60079-1:2014EN 60079-1:2014 - 2 - Foreword The text o
14、f document 31/1111/FDIS, future edition 7 of IEC 60079-1, prepared by IEC/TC 31 “Equipment for explosive atmospheres“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60079-1:2014. The following dates are fixed: latest date by which the document has to be implemented at n
15、ational level by publication of an identical national standard or by endorsement (dop) 2015-05-01 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-08-01 This document supersedes EN 60079-1:2007. Attention is drawn to the possibility that some
16、of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, a
17、nd supports essential requirements of EU Directive. For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this document. Endorsement notice The text of the International Standard IEC 60079-1:2014 was approved by CENELEC as a European Standard without any modif
18、ication. BS EN 60079-1:2014- 3 - EN 60079-1:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
19、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2
20、Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60061 - Lamp caps and holders together with gauges for the control of interchangeability and safety - - IEC 60079-0 (mod) - Explosive
21、atmospheres - Part 0: Equipment - General requirements EN 60079-0 - +A11 2013 IEC 60079-7 - Explosive atmospheres - Part 7: Equipment protection by increased safety “e“ EN 60079-7 - IEC 60079-11 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety “i“ EN 60079-11 - IEC 60079-1
22、5 - Explosive atmospheres - Part 15: Equipment protection by type of protection “n“ EN 60079-15 - IEC 60127 series Miniature fuses EN 60127 series ISO 965-1 - ISO general purpose metric screw threads - Tolerances Part 1: Principles and basic data - - ISO 965-3 - ISO general purpose metric screw thre
23、ads - Tolerances Part 3: Deviations for constructional screw threads - - ISO 2738 - Sintered metal materials, excluding hardmetals - Permeable sintered metal materials - Determination of density, oil content and open porosity EN ISO 2738 - ISO 4003 - Permeable sintered metal materials - Determinatio
24、n of bubble test pore size EN 24003 - ISO 4022 - Permeable sintered metal materials - Determination of fluid permeability EN ISO 4022 - ANSI/ASME B 1.20.1 - - - BS EN 60079-1:2014EN 60079-1:2014 - 4 - Annex ZY (informative) Significant changes between this European Standard and EN 60079-1:2007 This
25、European Standard supersedes EN 60079-1:2007. The significant changes with respect to EN 60079-1:2007 are as listed below. Type Significant Changes Clause Minor and editorial changes Extension Major technical changes Normative references (Removal of the edition date from the reference for IEC 60079-
26、0) 2 X Requirements for level of protection “da” (Catalytic sensors for combustible gas detectors) 4.2 X Requirements for level of protection “dc” (“Enclosed break” devices from IEC 60079-15) 4.4, 15.5 X Flameproof joints, General requirements (Documentation clarification and examples of corrosion i
27、nhibiting grease) 5.1 X Flameproof joints, General requirements (Specific Conditions of Use that joints are not intended to be repaired) 5.1 X Flameproof joints, General requirements (Electroplating more than 0.008 mm think) 5.1 X Non-threaded joints, Gap (i) (Intentional gaps between surface for fl
28、anged joints) 5.2.2 X Serrated joints (Use and test requirements) 5.2.8 X Multi-step joints (Not less than 3 adjacent segments and two path changes) 5.2.9 X Minimum width of joint and maximum gap for enclosures of groups IIA and IIB (Maximum gaps for flanged, cylindrical or spigot joints of 9,5 mm m
29、inimum width and volume greater than 2,000 cm3) Table 2 X Minimum width of joint and maximum gap for enclosures of groups I, IIA, IIB and IIC (ISO 80000-1 for constructional value rounding) Table 2, Table 3 X Cylindrical threaded joints (ISO 965-1 standard in respect of thread form or quality of fit
30、) Table 4 X Taper threaded joints (External and internal thread construction) Table 5 X Cemented joints (Supplemental mechanical means of securement) 6.1.2 C1 Cemented joints (Evaluation criteria if there is leakage) 6.1.2 X Fused glass joints (Glass-to-metal joints) 6.2 X BS EN 60079-1:2014- 5 - EN
31、 60079-1:2014 Type Significant Changes Clause Minor and editorial changes Extension Major technical changes Thermal tests of breathing and draining devices (Temperature class based on external surface temperature after the 10 min test period) 10.9.3.2 X Test of the ability of the breathing and drain
32、ing device to withstand pressure (Relocated from before thermal tests to after the non-transmission test) 10.9.3.4 X Ex component certificate (Service temperature range for non-metallic enclosures per IEC 60079-0) 10.9.4 X Fasteners and openings (Relocation of blanking element content to Clauses 13.
33、8 and C.2.3) 11 X Fasteners and openings, Property class or yield stress (Certificate specific condition of use) 11.3 X Fasteners and openings (Openings in the wall of the enclosure) 11.8 X Materials (Material limitation in acetylene atmospheres) 12.8 C2 Entries for flameproof enclosures, General (M
34、etric and NPT threaded entries) 13.1 X Entries for flameproof enclosures, General (Group I non-threaded joints) 13.1 X Entries for flameproof enclosures, Non-threaded holes (Group I application) 13.3 X Entries for flameproof enclosures, Cable glands (Group I application) 13.4 X Cable glands, Conduit
35、 sealing devices (Documentation to facilitate mounting) 13.4,13.5 X Plugs and sockets and cable couplers (Load requirement for arc-quenching test) 13.6.4 C3 Bushings (Documentation to facilitate mounting) 13.7 X Blanking elements (Relocated from Clause 11) 13.8 X Verification and tests (Maximum surf
36、ace temperature conditions) Table 6 X Type tests (Sequence and number of samples for tests) 15 X Determination of explosion pressure, General (Devices that can cause turbulence) 15.2.2.2 X Determination of explosion pressure, General (Number of tests for Group IIC) 15.2.2.2 X Determination of explos
37、ion pressure, General (Pressure pilling for Group IIB) 15.2.2.4 X Determination of explosion pressure, General (Equipment marked for a single gas) 15.2.2.5 X Overpressure test, General (Low ambient overpressure tests not required) 15.2.3 X BS EN 60079-1:2014EN 60079-1:2014 - 6 - Type Significant Cha
38、nges Clause Minor and editorial changes Extension Major technical changes Overpressure test First method (static) (3 times option when routine batch testing) 15.2.3.2 X Overpressure test First method (static) (Adjustment for low ambient due to small size of equipment) 15.2.3.2 X Overpressure test Se
39、cond method (dynamic) (Number of tests to be made) 15.2.3.3 X Test for non-transmission of an internal ignition (Clarification regarding grease) 15.3 X Reduction in length of a threaded joint for non-transmission test (ISO 965-1 and 965-3 standards in respect of thread form and quality of fit) Table
40、 9 X Test factors to increase pressure or test gap (Group IIC adjustments for elevated ambients) Table 10 X Test for non-transmission of an internal ignition, Groups I, IIA and IIB (Number of tests to be made) 15.3.2.3 X Test for non-transmission of an internal ignition, Group IIC testing by increas
41、ed gap (Number of tests to be made) 15.3.3.2 X Test for non-transmission of an internal ignition, Group IIC (Oxygen enrichment of test gases) 15.3.3.4 X Thermal tests of enclosures with breathing and draining devices (Temperature class based on external surface temperature after the 10 min test peri
42、od) 15.4.3.1 X Tests for “dc” devices (“Enclosed break” devices from IEC 60079-15) 15.5 X Routine tests, General (Adjustment for low ambient due to small size of equipment) 16.1.2 X Routine tests, General (Options when second method is chosen) 16.1.3 X Routine tests, General (Welded joint inspection
43、 options) 16.3 X Routine tests, General (Allowance for batch testing) 16.6 X Switchgear for Group I (Clarifying need for compliance with EPL Mb types of protection) 17.2.2, 17.2.3 X Non-metallic enclosures and non-metallic parts of enclosures, General (Exception for cemented joints) 19.1 X Non-metal
44、lic enclosures and non-metallic parts of enclosures, Resistance to tracking and creepage distances (Reference to both IEC 60079-7 and or IEC 60079-15) 19.2 X Non-metallic enclosures and non-metallic parts of enclosures, Requirements for type tests (Clarification of test sequence) 19.3 X BS EN 60079-
45、1:2014- 7 - EN 60079-1:2014 Type Significant Changes Clause Minor and editorial changes Extension Major technical changes Instructions (Indication that repair of flamepaths is not intended) 21 X Bushings (Documentation regarding numbers of cores) C.2.1.4 X Bushings (Criteria for non-transmission tes
46、t) C.2.1.4 X Bushings (Evaluation criteria if there is leakage) C.2.1.4 X Flameproof joints, Threaded joints (Requirement options) C.2.2.1 X Flameproof joints, Non-threaded joints (Group I application) C.2.2.2 X Constructional requirements for Ex blanking elements (Relocated from Clause 11) C.2.3.1
47、X Constructional requirements for Ex blanking elements (Metric and NPT Ex blanking elements) C.2.3.2, C.2.3.3 X Constructional requirements for Ex blanking elements (Group I non-threaded construction) C.2.3.4 X Sealing test, General (Allowance for re-tightening) C.3.1.1 X Cable glands and conduit se
48、aling devices with sealing ring (Mandrel to be corrosion-resistant metal) C.3.1.2 X Type tests for Ex blanking elements, Torque test (Test-block to be steel) C.3.3.1 X Tightening torque values (Addition of 5 750 I IIA IIB I IIA IIB I IIA IIB I IIA IIB I IIA IIB Flanged, cylindrical or spigot joints
49、6 0,30 0,30 0,20 9,5 0,35 0,30 0,20 0,35 0,30 0,20 0,08 0,08 0,08 0,08 0,08 0,08 12,5 0,40 0,30 0,20 0,40 0,30 0,20 0,40 0,30 0,20 0,40 0,20 0,15 0,40 0,20 0,15 25 0,50 0,40 0,20 0,50 0,40 0,20 0,50 0,40 0,20 0,50 0,40 0,20 0,50 0,40 0,20 Cylindrical joints for shaft glands of rotating electrical machines with: Sleeve bearings 6 0,30 0,30 0,20 9,5 0,35 0,30 0,20 0,35 0,30 0,20
