1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationExplosive atmospheresPart 13: Equipment protection by pressurized room “p”BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled
2、 Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 60079-13:2010. It isidentical to IEC 60079-13:2010.The UK participation in its preparation was entrusted by Technical CommitteeGEL/31, British Electrotechnical Committee, to Subcommittee GEL/31/X,Equipment for explos
3、ive 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 of acontract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 60924 4ICS 29.260.20Compl
4、iance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60079-13:2010Licensed Co
5、py: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 60079-13 NORME EUROPENNE EUROPISCHE NORM December 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr E
6、lektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60079-13:2010 E ICS 29.260.20 English version Explosive atmospheres - Part 13: Equipment protecti
7、on by pressurized room “p“ (IEC 60079-13:2010) Atmosphres explosives - Partie 13: Protection du matriel par salle surpression interne “p“ (CEI 60079-13:2010) Explosionsfhige Atmosphre - Teil 13: Gerteschutz durch berdruckgekapselte Rume (IEC 60079-13:2010) This European Standard was approved by CENE
8、LEC on 2010-12-01. CENELEC members 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 standar
9、ds may be obtained on application to the Central Secretariat 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 notifi
10、ed to the Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
11、ithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSIEN 60079-13:2010 - 2 - Forewor
12、d The text of document 31/878/FDIS, future edition 1 of IEC 60079-13, prepared by IEC TC 31, Equipment for explosive atmospheres, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60079-13 on 2010-12-01. This part of EN 60079 is to be read in conjunction with EN 60079-
13、0. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at n
14、ational level by publication of an identical national standard or by endorsement (dop) 2011-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-12-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard
15、IEC 60079-13:2010 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60079-17 NOTE Harmonized as EN 60079-17. IEC 60079-20-1 NOTE Harmonized as EN 60079-20-1. IEC 60
16、079-29 series NOTE Harmonized in EN 60079-29 series (partially modified). IEC 60529 NOTE Harmonized as EN 60529. IEC 61285 NOTE Harmonized as EN 61285. IEC 61511 series NOTE Harmonized in EN 61511 series (not modified). _ BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/0
17、8/2011 09:16, Uncontrolled Copy, (c) BSI- 3 - EN 60079-13:2010 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only
18、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC
19、 60050-426 - International Electrotechnical Vocabulary - Part 426: Equipment for explosive atmospheres - - IEC 60079-0 - Explosive atmospheres - Part 0: Equipment - General requirements EN 60079-0 - IEC 60079-2 - Explosive atmospheres - Part 2: Equipment protection by pressurized enclosure “p“ EN 60
20、079-2 - IEC 60079-10-1 - Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres EN 60079-10-1 - IEC 60695-11-10 - Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods EN 60695-11-10 - BS EN 60079-13:2010Licensed Copy: Wang Bi
21、n, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSI 2 60079-13 IEC:2010 CONTENTS 1 Scope.7 2 Normative references .10 3 Terms and definitions .10 4 Requirements for rooms .13 4.1 General .13 4.2 Construction13 4.3 Mechanical strength 14 4.4 Openings, penetrations and seals
22、.14 4.5 Doors 14 4.6 Inlets and outlets.14 4.7 Ducts 14 5 Clean air supply .14 5.1 Source of clean air 14 5.2 Environmental and air temperature conditions .15 5.3 Heating, ventilation and air conditioning services 15 5.4 Minimum flow rate .15 6 Purging and cleaning15 6.1 General .15 6.2 Gases Purgin
23、g15 6.2.1 General .15 6.2.2 Purge volume 15 6.2.3 Purging flow rate .15 6.2.4 Sequence of operations of the purging safety devices for type of protection px16 6.2.5 Enclosures within the room16 6.3 Dusts Cleaning.16 7 Temperature limits16 8 Minimum safety provisions, safety devices and electrical di
24、sconnects 16 8.1 Safety devices.16 8.2 Safety devices based upon type of protection17 8.3 Gas detectors18 8.4 Failure of the pressurization system 18 9 Pressurized room in a hazardous area and with no internal source of flammable substance.18 9.1 General .18 9.2 Protective gas .18 9.2.1 Type of prot
25、ection px.18 9.2.2 Type of protection py.18 9.2.3 Type of protection pz.19 9.3 Pressurization system .19 9.3.1 Room pressure differential.19 9.3.2 Power for pressurization system 19 9.4 Preventing the explosive atmosphere from entering an open door .19 9.5 Airlock.19 9.6 Outward air velocity through
26、 a door .20 BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSI60079-13 IEC:2010 3 9.7 Air consuming device 20 9.8 Action when pressurization system fails 20 9.8.1 Type of protection px.20 9.8.2 Types of protection py and pz20 9.9 Re
27、-energizing the room .21 10 Pressurized room in a hazardous area and containing an internal source of flammable substance21 10.1 Evaluation of internal sources of a flammable substance.21 10.1.1 Flammable substance assessment 21 10.1.2 Assessment of release 21 10.1.3 Release Additional requirements
28、21 10.1.4 Adequate dilution.21 10.2 Applicability of Clause 9 21 10.3 Containment system21 10.4 Sample lines .21 10.5 Types of anticipated releases 22 10.5.1 General .22 10.5.2 No release.22 10.5.3 Negligible release22 10.5.4 Limited release22 10.5.5 Unlimited release.22 10.6 Safety measures .23 10.
29、7 Minimum flow rate for dilution23 10.8 Warning to prevent entry into a room.25 10.9 Air distribution .25 10.10 Protective gas .25 10.11 Additional pressurization system requirements when inert gas is used 25 11 Pressurized room in a non-hazardous area with internal source of flammable substance (ty
30、pe of protection pv)25 11.1 Applicability of Clause 9 26 11.2 Applicability of Clause 10 26 11.3 Loss of flow of the protective gas 26 11.4 Safety devices.26 12 Verification .26 12.1 General .26 12.2 Sequence of tests .26 12.3 Mechanical strength test26 12.4 Overpressure test27 12.5 Purging test.27
31、12.6 Minimum pressure differential test for types of protection px, py and pz 27 12.7 Minimum flow rate test 27 12.8 Overpressure test for containment systems with limited release 27 12.9 Confirmation of the ratings of the safety devices .27 12.10 Verification sequence of operation of the safety dev
32、ices27 13 Marking 28 14 Technical documentation28 Annex A (normative) Containment system30 Annex B (informative) Maintenance .33 BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSI 4 60079-13 IEC:2010 Annex C (informative) Guidelines
33、 when pressurization not immediately restored .34 Annex D (normative) Classification of the type of release within rooms35 Bibliography37 Table 1 Exclusion of specific clauses of IEC 60079-0.8 Table 2 Safety devices based on type of protection .17 Table 3 Safety devices, loss of pressurization or us
34、e of inert protective gas 24 Table 4 Protective gas requirements for a pressurized room with an internal flammable substance 25 BS EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSI60079-13 IEC:2010 7 EXPLOSIVE ATMOSPHERES Part 13: Equ
35、ipment protection by pressurized room “p” 1 Scope This part of IEC 60079 gives requirements for the design, construction, assessment and testing and marking of rooms protected by pressurization in: a room located in an explosive gas atmosphere or explosive dust atmosphere hazardous area that does no
36、t include an internal source of a flammable substance; a room located in an explosive gas atmosphere or explosive dust atmosphere hazardous area that includes an internal source of a flammable substance; a room located in a non-hazardous area that includes an internal source of a flammable substance
37、. NOTE If ventilation is used and pressurization is not used, then this part of IEC 60079 does not apply. The situation is covered by the requirements of IEC 60079-10-1. A room may be a single room, multiple rooms, a complete building or a room contained within a building and includes inlet and outl
38、et ducts. This part of IEC 60079 also includes requirements for associated equipment, safety devices and controls necessary to ensure that pressurization is established and maintained. This part of IEC 60079 covers rooms or buildings that are constructed or assembled on site, which may be either on
39、land or off-shore, designed to facilitate the entry of personnel and primarily intended for installation by an end-user and verification on site. The room may be located in an explosive gas atmosphere or a explosive dust atmosphere requiring equipment protection levels (EPL) Gb, Db, Gc or Dc. This p
40、art of IEC 60079 does not specify the methods that may be required to ensure adequate air quality for personnel with regard to toxicity and temperature within the room. NOTE 1 Whilst the scope of this part of IEC 60079 does not address toxicity it is vital that proper consideration is given to this
41、aspect to ensure the safety of personnel. National regulations and requirements should be observed in this regard. NOTE 2 There is a related standard IEC60079-2 (Equipment protection by pressurized enclosure) covering the different conditions encountered when using the pressurization technique. NOTE
42、 3 Maintenance needs are contained in Annex B until they are included IEC 60079-17. NOTE 4 For the purposes of this part of IEC 60079, the terms “lower flammable limit (LFL)“ and “lower explosive limit (LEL)“ are deemed to be synonymous, and likewise the terms “upper flammable limit (UFL)“ and “uppe
43、r explosive limit (UEL)“ are deemed to be synonymous. For ease of reference, the two abbreviations LFL and UFL may be used hereinafter to denote these two sets of terms. It should be recognized that particular authorities having jurisdiction may have overriding requirements that dictate the use of o
44、ne of these sets of terms and not the other. This part of IEC 60079 supplements and modifies the general requirements of IEC 60079-0, except as indicated in Table 1. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. B
45、S EN 60079-13:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 10/08/2011 09:16, Uncontrolled Copy, (c) BSI 8 60079-13 IEC:2010 Table 1 Exclusion of specific clauses of IEC 60079-0 Clause of IEC 60079-0 Ed. 4.0 (2004) (Informative)Ed. 5.0 (2007) (Informative) Clause / subclause title (Norm
46、ative) 4 4 Equipment grouping Applies 4.1 4.1 Group I Applies4.2 4.2 Group II Applies 4.3 4.3 Group III Applies 4.4 4.4 Equipment for a particular explosive atmosphere Applies 5.1 5.1 Environmental influences Applies 5.1.1 5.1.1 Ambient temperature Applies 5.1.2 5.1.2 External source of heating or c
47、ooling Applies 5.2 5.2 Service temperature Applies 5.3.1 5.3.1 Determination of maximum surface temperature Applies 5.3.2.1 5.3.2.1 Group I electrical equipment Applies 5.3.2.2 5.3.2.2 Group II electrical equipment Applies 5.3.2.3 5.3.2.3 Group III electrical equipment Applies 5.3.3 5.3.3 Small comp
48、onent temperature for Group I and Group II electrical equipment Applies 6.1 6.1 GeneralApplies 6.2 6.2 Mechanical strength Excluded 6.3 6.3 Opening timesExcluded 6.4 6.4 Circulating currents Excluded 6.5 6.5 Gasket retention Excluded 6.6 6.6 Electromagnetic and ultrasonic radiating equipment Exclude
49、d 7 7 Non-metallic enclosures and parts of enclosure Excluded 8 8 Metallic enclosures and metallic parts of enclosures Excluded 9 9 Fasteners Excluded 10 10 Interlocking devices Excluded 11 11 Bushings Excluded 12 12 Materials used for cementing Excluded 13 13 Ex components Excluded 14 14 Connection facilities and termination compartments Excluded 15 15 Connection facilities for earthing and bonding conductors Excluded 16 16 Entries into enclosuresExcluded 17 17 Supplementary
