Industrial-process control - Safety of analyser houses

Commande des processus industriels - Sécurité des bâtiments pour analyseurs

Nadzor industrijskih procesov - Varnost stavb z napravami za analiziranje

General Information

Status
Not Published
Public Enquiry End Date
29-Nov-2024
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
03-Oct-2024
Due Date
20-Feb-2025

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SLOVENSKI STANDARD
01-november-2024
Nadzor industrijskih procesov - Varnost prostorov z napravami za analiziranje
Industrial-process control - Safety of analyser houses
Commande des processus industriels - Sécurité des bâtiments pour analyseurs
Ta slovenski standard je istoveten z: prEN IEC 61285:2024
ICS:
13.110 Varnost strojev Safety of machinery
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

65B/1272/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61285 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-09-27 2024-12-20
SUPERSEDES DOCUMENTS:
65B/1225/RR
SC 65B : MEASUREMENT AND CONTROL DEVICES
IEC
SECRETARIAT: SECRETARY:
United States of America Mr Wallie Zoller
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document 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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Industrial-process control - Safety of analyser houses

PROPOSED STABILITY DATE: 2030
NOTE FROM TC/SC OFFICERS:
electronic 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.

65B/1272/CDV – 2 – IEC CDV 61285 © IEC 2023

1 CONTENTS
2 CONTENTS . 2
3 FOREWORD . 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms and definitions . 8
8 4 Location of AHs and connection within the process plant areas . 12
9 4.1 General . 12
10 4.2 Response time . 12
11 4.3 Utilities . 12
12 4.4 Safety . 12
13 4.4.1 Location . 12
14 4.4.2 Escape . 12
15 4.4.3 Area classification . 12
16 4.4.4 Peripheral hazards . 12
17 4.4.5 Access . 12
18 5 Design, construction and layout of AHs . 12
19 5.1 General . 12
20 5.2 General requirements . 13
21 5.3 Dimensions and layout . 13
22 5.4 Structural requirements . 13
23 5.4.1 Construction materials . 13
24 5.4.2 Walls . 13
25 5.4.3 Floors and foundation . 13
26 5.4.4 Doors . 13
27 5.4.5 Windows . 13
28 5.4.6 Roof . 14
29 5.5 Equipment . 14
30 5.5.1 Lighting . 14
31 5.5.2 Communications . 14
32 5.5.3 Piping, tubing and valves . 14
33 5.5.4 Utilities . 14
34 5.5.5 Protection Equipment . 14
35 5.5.6 Ventilation . 14
36 5.5.7 Temperature . 15
37 5.6 Labelling/instructions/documentation . 15
38 5.6.1 Entrance . 15
39 5.6.2 Alarms . 15
40 5.6.3 Safety procedures . 16
41 5.6.4 Additional data . 16
42 6 Explosion protection of AHs . 16
43 6.1 General . 16
44 6.2 General requirements . 16
45 6.3 Protection of AHs against explosion hazards by means of artificial ventilation . 16
46 6.3.1 Classification . 16
47 6.3.2 Requirements for AHs where the explosion hazard originates externally . 17

IEC CDV 61285 © IEC 2023 – 3 –   65B/1272/CDV
48 6.3.3 Requirements for AHs where the explosion hazard originates from
49 internal gases or vapours . 17
50 6.3.4 Requirements for AHs where the explosion hazard originates from
51 internal liquids . 18
52 6.3.5 Requirements for AHs where the explosion hazard originates from any
53 combination of the above . 19
54 6.4 Protection of AHs against explosion hazards by means of natural ventilation . 19
55 6.4.1 General . 19
56 6.4.2 Ventilation requirements . 19
57 6.4.3 Heating requirements . 20
58 6.4.4 Gas detectors . 20
59 7 Measures to prevent health hazards to personnel in AHs . 20
60 7.1 General . 20
61 7.2 Guidelines . 20
62 7.3 General requirements . 20
63 7.4 Safety measures . 21
64 7.4.1 Storage of toxic materials . 21
65 7.4.2 Design of lines carrying toxic material. 21
66 7.4.3 Flushing . 21
67 7.4.4 Observation windows . 21
68 7.4.5 Design of components carrying toxic material . 21
69 7.4.6 Additional measures . 21
70 7.4.7 Gas detection . 21
71 7.4.8 Emergency measures . 21
72 7.4.9 Toxicity consideration . 22
73 7.4.10 Warning signs . 22
74 7.4.11 Vacuum exhaust system . 22
75 7.5 External hazards . 22
76 7.5.1 Fresh air supply . 22
77 7.5.2 Alarm signalisation . 22
78 7.6 Additional measures for abnormal working conditions . 22
79 7.7 Labelling/instructions/documentation . 22
80 Annex A (informative) Examples of hazardous area classification inside of AHs . 24
81 A.1 General . 24
82 A.2 Examples . 24
83 Example 1 . 24
84 Example 2 . 26
85 Annex B (informative) Checklist for analyser houses . 28
86 B.1 General . 28
87 B.2 Example for checklist . 29
88 Bibliography . 43
65B/1272/CDV – 4 – IEC CDV 61285 © IEC 2023

91 INTERNATIONAL ELECTROTECHNICAL COMMISSION
92 ____________
94 INDUSTRIAL-PROCESS CONTROL – SAFETY OF ANALYSER HOUSES
96 FOREWORD
97 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
98 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
99 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
100 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
101 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
102 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
103 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
104 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
105 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
106 2) The formal decisions or agreements of IEC
...

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