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1、D A N S K S T A N D A R D Danish Standards Kollegievej 6 DK-2920 Charlottenlund Tel: +45 39 96 61 01 Fax: +45 39 96 61 02 dansk.standardds.dk www.ds.dk All rights of exploitation in any form and by any means reserved worldwide for Danish Standards M214186 OFFENTLIG HRING PUBLIC ENQUIRY DSF/prEN 6007
2、9-10-1:2006 FORSLAGSNR. M214186 DRAFT NO. M214186 Dette forslag til Dansk Standard er p offentlig hring i perioden fra: This draft for Danish Standard is for public enquiry in the period from: 2006-07-24 til 2007-11-30 2006-07-24 to 2007-11-30 Dette forslag bygger p flgende euro- piske/international
3、e standard: This draft is based on European / Inter national draft: prEN 60079-10-1:2007 IDT IEC 60079-10-1 Ed. 1.0 - 31J/147/CDV IDT IDT = identisk med/identical to EQV = baseret p/equivalent to MOD = modificeret/modified Kommentarer skal vre DS I hnde senest: Comments must be received by DS at the
4、 latest: 2006-11-08 2006-11-08 Forslag til Dansk titel: Eksplosive atmosfrer - Del 10-1: Klassifikation af farlige omrder - Eksplosive gasatmosfrer Proposal for English title: Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres Vi modtager gerne dine kommentarer. D
5、ette foregr ved at rekvirere en elektronisk kommen- tarskabelon hos projektlederen. Skabelonen udfyldes og returneres til projektlederen, inden hringsperiodens udlb. Dine kommentarer vil blive behandlet af det teknisk ansvarlige udvalg. DS appreciates your comments. A template for comments must be u
6、sed and is obtained from the responsible project manager. Your com- ments is treated in the DS committee responsi- ble for the area. Standardiseringsudvalg: DS committee: DS/S-531 DS/S-531 Projektleder: Project manager: Ren Nielsen - email: rnds.dk Bemrk at forslaget skal bearbejdes yderligere, og d
7、et har derfor ikke gyldighed som Dansk Standard Note that the draft will be edited fur- ther and has no validation as a Dan- ish Standard. 20778 Dear Member, The following document is being circulated for vote at CENELEC level : Project prEN 60079-10-1:2007CLC reference IEC 60079-10-1:200X (31J/147/
8、CDV) (EQV)Reference document : : : Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres Title: CLC/SC 31-1CLC/TC: IEC/SC 31JIEC/TC: parallel UAPProcedure: 2007-06-29Submission date: 2007-11-30Deadline: dor + 3 monthsdoa: dor + 9 monthsdop: dor + 36 monthsdow: -Direc
9、tive(s): -Mandate(s): EN 60079-10:2003Supersedes: -Available languages: Document link:- Mr George THOMPSON(Acting) Secretary: -Assistant Secretary: Mr Mike ELLISChairman / Convenor: -Note: CS general remarks : - The National Committees are invited to check carefully the validity of the proposed impl
10、ementation dates and Directive(s). - If the above project is submitted simultaneously to the IEC voting procedure in the framework of the IEC/CENELEC co-operation agreement (parallel UAP, parallel vote) you will receive the text of the document from the IEC Central Office. In case your vote would be
11、 different in IEC and CENELEC, a detailed technical justification should be sent to the CENELEC Central Secretariat, with copy to the IEC Central Office. - Superseded HDs or ENs are withdrawn at the dow of the new standard. Yours sincerely, Procedures Unit procedurescenelec.org CENELEC Central Secre
12、tariat 35 rue de Stassart B-1050 Brussels Belgium - The above notes do not apply in the case of a withdrawal vote. -BT decision: Mr DILLc.c.: -,-,- FORM CDV (IEC) 2005-09-23 31J/147/CDV COMMITTEE DRAFT FOR VOTE (CDV) PROJET DE COMIT POUR VOTE (CDV) Project number IEC 60079-10-1 Ed. 1.0 Numro de proj
13、et IEC/TC or SC: SC 31J CEI/CE ou SC: Secretariat / Secrtariat Croatia Submitted for parallel voting in CENELEC Soumis au vote parallle au CENELEC Date of circulation Date de diffusion 2007-06-29 Closing date for voting (Voting mandatory for P-members) Date de clture du vote (Vote obligatoire pour l
14、es membres (P) 2007-11-30 Also of interest to the following committees Intresse galement les comits suivants TC 18 Supersedes document Remplace le document 31J/146/MCR Functions concerned Fonctions concernes Safety Scurit EMC CEM Environment Environnement Quality assurance Assurance qualit CE DOCUME
15、NT EST TOUJOURS LTUDE ET SUSCEPTIBLE DE MODIFICATION. IL NE PEUT SERVIR DE RFRENCE. LES RCIPIENDAIRES DU PRSENT DOCUMENT SONT INVITS PRSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES DROITS DE PROPRIT DONT ILS AURAIENT VENTUELLEMENT CONNAISSANCE ET FOURNIR UNE DOCUMENTATION EXPLICATIVE. THIS DO
16、CUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Titre : CEI 60079-10-1
17、Ed. 1.0: Atmosphres explosives - Partie 10-1: Classement des emplacements - Atmosphres explosives gazeuses Title : IEC 60079-10-1 Ed. 1.0: Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres Note dintroduction Ce projet remplacera la CEI 60079-10 Ed. 4.0. Le titre
18、a t modifi afin dappliquer la dcision prise en 2006, lors de la runion plnire du TC31 et de la runion du CAG TC31, de modifier les titres de la srie de normes 60079 pour les publications futures. Introductory note This project will replace IEC 60079-10 Ed. 4.0. The title has been changed to reflect
19、the decision taken at the TC 31 Plenary Meeting 2005 and TC 31 CAG Meeting 2006 to change the titles of the 60079 series for future publications. ATTENTION VOTE PARALLLE CEI CENELEC Lattention des Comits nationaux de la CEI, membres du CENELEC, est attire sur le fait que ce projet de comit pour vote
20、 (CDV) de Norme internationale est soumis au vote parallle. Un bulletin de vote spar pour le vote CENELEC leur sera envoy par le Secrtariat Central du CENELEC. ATTENTION IEC CENELEC PARALLEL VOTING The attention of IEC National Committees, members of CENELEC, is drawn to the fact that this Committee
21、 Draft for Vote (CDV) for an International Standard is submitted for parallel voting. A separate form for CENELEC voting will be sent to them by the CENELEC Central Secretariat. Copyright 2007 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this elect
22、ronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC. 60079-10-1 Ed 1/CDV IEC 2
23、 CONTENTS FOREWORD 4 INTRODUCTION 6 1 Scope 7 2 Normative references8 3 Terms and definitions .8 4 General12 4.1 Safety principles 12 4.2 Area classification objectives12 5 Area classification procedure 13 5.1 General.13 5.2 Sources of release.13 5.3 Type of zone .14 5.4 Extent of zone .14 5.4.1 Rel
24、ease rate of gas or vapour .15 5.4.2 Lower explosive limit (LEL) .16 5.4.3 Ventilation16 5.4.4 Relative density of the gas or vapour when it is released16 5.4.5 Other parameters to be considered .16 5.4.6 Illustrative examples.17 6 Ventilation17 6.1 General.17 6.2 Main types of ventilation.18 6.3 De
25、gree of ventilation18 6.4 Availability of ventilation.18 7 Documentation .18 7.1 General.18 7.2 Drawings, data sheets and tables .18 Annex A (informative) Examples of sources of release and release rate .20 A.1 Process plant .20 A.1.1 Sources giving a continuous grade of release20 A.1.2 Sources givi
26、ng a primary grade of release.20 A.1.3 Sources giving a secondary grade of release 20 A.2 Openings .20 A.2.1 Openings as possible sources of release 20 A.2.2 Openings classification 21 A.3 Release rate.21 A.3.1 Release rate of liquid .22 A.3.2 Release rate of gas22 A.4 Examples of estimating release
27、 rate 24 Annex B (informative) Ventilation26 B.1 Natural ventilation 26 B.2 Artificial ventilation .27 B.2.1 General.27 B.2.2 Design considerations27 -,-,- 60079-10-1 Ed 1/CDV IEC 3 B.2.3 Examples of artificial ventilation28 B.3 Degree of ventilation.28 B.3.1 High ventilation (VH)28 B.3.2 Medium ven
28、tilation (VM).28 B.3.3 Low ventilation (VL) .28 B.4 Assessment of degree of ventilation and its influence on the hazardous area28 B.4.1 General.28 B.4.2 Estimation of hypothetical volume Vz29 B.4.3 Estimation of degree of ventilation31 B.5 Availability of ventilation .33 B.6 Practical guide .34 B.7
29、Calculations to ascertain the degree of ventilation36 Annex C (informative) Examples of hazardous area classification.43 Annex D (informative) Flammable mists 66 Table A.1 Effect of openings on grade of release.21 Table B.1 Influence of independent ventilation on type of zone.34 Table B.2 Procedure
30、for summation of multiple releases within location Vo.34 Table B.3 Procedure for summation of multiple primary grade releases .35 Table C.1 Hazardous area classification data sheet Part I: Flammable material list and characteristics62 Table C.2 Hazardous area classification data sheet Part II: List
31、of sources of release.63 -,-,- 60079-10-1 Ed 1/CDV IEC 4 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ EXPLOSIVE ATMOSPHERES Part 10-1: Classification of areas Explosive gas atmospheres FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comp
32、rising all national electrotechnical committees (IEC National Committees). The object of IEC is to 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 Stan
33、dards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this prep
34、aratory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organ
35、izations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form
36、of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretati
37、on by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regi
38、onal publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this pub
39、lication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect
40、, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the co
41、rrect application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60079-10-1 has been prepa
42、red by subcommittee 31J: Classification of hazardous areas and installation requirements, of IEC technical committee 31: Equipment for explosive atmospheres. This first edition cancels and replaces the fourth edition of IEC 60079-10 published in 2002 and constitutes a technical revision. The signifi
43、cant technical changes with respect to the previous edition are as follows: Introduction of Annex D which deals with explosion hazard from flammable mists generated by the release under pressure of high flash point liquids. Introduction of Clause A.3 (Release rate) which gives thermodynamic equation
44、s for release rate with a number of examples for estimating release rate of fluids and gases. The text of this standard is based on the following documents: -,-,- 60079-10-1 Ed 1/CDV IEC 5 FDIS Report on voting 31J/-/FDIS 31J/-/RVD Full information on the voting for the approval of this standard can
45、 be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 60079 series, under the general title Explosive atmospheres, can be found on the IEC website. The committee has decided
46、that the contents of this publication will remain unchanged until the maintenance result date1 indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or
47、amended. 1 The National Committees are requested to note that for this publication the maintenance result date is 2013. 60079-10-1 Ed 1/CDV IEC 6 INTRODUCTION In areas where dangerous quantities and concentrations of flammable gas or vapour may arise, protective measures are to be applied in order t
48、o reduce the risk of explosions. This part of IEC 60079 sets out the essential criteria against which the ignition hazards can be assessed, and gives guidance on the design and control parameters which can be used in order to reduce such a hazard. -,-,- 60079-10-1 Ed 1/CDV IEC 7 EXPLOSIVE ATMOSPHERES Part 10-1: Classification of areas Explosive gas atmospheres 1 Scope This part of IEC 60079 is concerned with the classification of hazardous areas where flammable gas or vapour hazards may arise and ma