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ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

Наказом Міністерства економічного розвитку і торгівлі України
від 30.12.2014 № 1494

EN 15004-1:2008

en: Fixed firefighting systems - Gas extinguishing systems - Part 1: Design,
installation and maintenance (ISO 14520-1:2006, modified)
прийнято як національний стандарт
методом підтвердження за позначенням

ДСТУ EN 15004-1:2014

uk: Стаціонарні системи пожежогасіння. Системи газового пожежогасіння.
Частина 1. Проектування, монтування та технічне обслуговування
(EN 15004-1:2008, IDT)

З наданням чинності від 2016-01-01

EN 15004-1

June 2008

Installations fixes de lutte contre I'incendie - Installations
d'extinction a gaz - Partie 1 : Calcul, installation et
maintenance (ISO 14520-1:2006, modifiee)

Ortsfeste Brandbekampfungsanlagen - Loschanlagen mit
gasformigen Loschmitteln - Teil 1: Planung, Installation und
Instandhaltung (ISO 14520-1:2006, modifiziert)

EUROPEAN STANDARD

NORME EUROPEENNE

EUROPAISCHE NORM

ICS 13.220.20

English Version

Fixed firefighting systems - Gas extinguishing systems - Part 1:
Design, installation and maintenance (ISO 14520-1:2006,
modified)

This European Standard was approved by CEN on 26 April 2008.

CEN 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 standards may be obtained on application to the CEN Management Centre or to any CEN 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 CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
СОМІТЁ EUROPEEN DE NORMALISATION
EUROPAISCHES KOMITEE FUR NORMUNG

M

Ref. No. EN 15004-1:2008: E

anagement Centre: rue de Stassart, 36 B-1050 Brussels

© 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members

.Contents Page

Foreword 6

Introduction 9

1. Scope 11

2. Normative references 11

3. Terms and definitions 13

4. Use and limitations 16

   1. General 16

   2. Extinguishants 16

   3. Electrostatic discharge 17

   4. Compatibility with other extinguishants 17

   5. Temperature limitations 17

5. Safety 17

   1. Hazard to personnel 17

   2. Safety precautions 18

      1. General 18

      2. For normally unoccupied areas 18

      3. For unoccupiable areas 19

   3. Occupiable areas 19

   4. Electrical hazards 20

   5. Electrical earthing 20

   6. Electrostatic discharge 20

6. System design 20

   1. General 20

   2. Extinguishant supply 21

      1. Quantity 21

      2. Quality 21

      3. Container arrangement 21

      4. Storage containers 21

   3. Distribution 22

      1. General 22

      2. Piping 23

      3. Fittings 23

      4. Pipe and valve supports 24

      5. Valves 25

      6. Nozzles 25

      7. Pressure reducing orifice assembly 26

   4. Detection, actuation and control systems 26

      1. General 26

      2. Automatic detection 26

      3. Operating devices 27

      4. Control equipment 27

      5. Operating alarms and indicators 28

      6. Stop devices 28

7. Extinguishant 28

   1. General 28

   2. Specifications, plans and approvals 28

      1. Specifications 28

      2. Working documents 28

   3. System flow calculations 29

      1. General 29

      2. Balanced and unbalanced system 29

      3. Friction losses 29

      4. Pressure drop 29

      5. Valves and fittings 29

      6. Piping length 30

      7. Drawings 30

      8. Liquefied gases - Specific requirements 30

   4. Enclosures 31

   5. Extinguishant concentration requirements 32

      1. Flame extinguishment 32

   6. Total flooding quantity 33

      1. General 33

      2. Liquefied gases 33

      3. Non-liquefied gas 34

   7. Altitude adjustment 34

   8. Duration of protection 35

   9. System performance 35

      1. Discharge time 35

      2. Extended discharge 36

8. Commissioning and acceptance 36

   1. General 36

   2. Tests 36

      1. General 36

      2. Enclosure check 36

      3. Review of mechanical components 36

      4. Review of enclosure integrity 37

      5. Review of electrical components 37

      6. Preliminary functional tests 38

      7. System functional operational test 39

      8. Remote monitoring operations (if applicable) 39

      9. Control panel primary power source 39

      10. Completion of functional tests 39

   3. Completion certificate and documentation 39

9. Inspection, maintenance, testing and training 40

   1. General 40

   2. Inspection 40

      1. General 40

      2. Container 40

      3. Hose 40

      4. Enclosures 41

   3. Maintenance 41

      1. General 41

      2. User's programme of inspection 41

      3. Service schedule 41

   4. Training 42

1. (normative) Working documents 43

A.1 General 43

A.2 Working documents 43

A.3 Specific details 44

A.3.1 Pre-engineered systems 44

A.3.2 Engineered systems 44

2. (normative) Determination of flame-extinguishing concentration of gaseous extinguishants by the cup burner method 45

3. (normative) Fire extinguishment/area coverage fire test procedure for engineered and pre-engineered extinguishing units 51

C.1 Requirements 51

C.2 Type of test 51

C.3 Extinguishing system 52

C.4 Extinguishing concentration 53

C.5 Nozzle distribution verification tests 53

C.5.1 Nozzles minimum height/maximum area coverage test 53

C.5.2 Nozzles maximum height test 58

C.6 Extinguishing concentration tests 59

C.6.1 Wood crib test 59

C.6.2 Heptane pan test 64

C.6.3 Polymeric sheet fire test 65

3. (normative) Method of evaluating inerting concentration of a fire extinguishant 71

D.1 General 71

D.2 Principle 71

D.3 Apparatus 71

D.4 Procedure 71

D.5 Inerting concentration 72

3. (normative) Door fan test for determination of minimum hold time 73

E.1 General 73

E.2 Test for determination of predicted hold time 73

E.2.1 Principle 73

E.2.2 Apparatus 74

E.2.3 Calibration and accuracy of apparatus 74

E.2.4 Preliminary preparation 74

E.2.5 Evaluation of enclosure 75

E.2.6 Measurement of enclosure 75

E.2.7 Test procedure 76

E.2.8 Calculation 79

E.3 Treatment of enclosures with predicted hold times less than the recommended value 87

E.3.1 General 87

E.3.2 Leakage areas 87

E.3.3 Improved sealing of the enclosure 87

E.3.4 Quantification and location of leaks 87

E.4 Report 88

6. (informative) System performance verification 90

7. (informative) Safe personnel exposure guidelines 91

G.1 General 91

G.2 Safety 91

G.3 Hazards to Personnel 91

G.3.1 Agent itself 91

G.3.2 Noise 91

G.3.3 Turbulence 91

G.3.4 Low temperature 91

G.4 Halocarbon agents 92

G.4.1 Toxicity of halocarbons (liquefied gases) 92

G.4.2 PBPK Model 93

G.4.3 Safe exposure guidelines for halocarbons 94

G.5 Inert Gas (non-liquefied gas) 96

G.5.1 Physiological effects of inert gas agents 96

G.5.2 Safe exposure guidelines for inert gas agents 96

6. (informative) Flow calculation implementation method and flow calculation verification and testing for approvals 98

H.1 General 98

H.2 Calculation method implementation 98

H.3 Minimum accuracy recommendations 99

H.3.1 Physical quantities 99

H.3.2 Recommended design limits to be included inside the flow calculation method (software) 99

H.4 Recommended testing procedure for system flow calculation method (software)

validation 99

H.4.1 General 99

H.4.2 System design fortesting 100

H.5 Pass/fail criteria 101

Bibliography 102Foreword

This document (EN 15004-1:2008) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems", the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

The text of the International Standard ISO 14520-1:2006 from Technical Committee ISO/TC 21 "Equipment for fire protection and fire fighting" of the International Organization for Standardization (ISO) has been taken over as a European Standard by Technical Committee CEN/TC 191 "Fixed firefighting systems", the secretariat of which is held by BSI, with common modifications which are indicated by a straight line in the margin of the text. Where the text in ISO 14520-1 gives the reference to "ISO 14520-1" or "this part of ISO 14520" this document refers only to "this document" and is not marked by a straight line.

This European Standard will consist of the following parts, under the general title "Fixed firefighting systems - Gas extinguishing systems":

— Part 1: Design, installation and maintenance (ISO 14520-1, modified)

• Part 2: Physical properties and system design of gas extinguishing systems for FK-5-1-12 extinguishant (ISO 14520-5, modified)

• Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A extinguishant (ISO 14520-6, modified)

• Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8, modified)

• Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant (ISO 14520-9, modified)

• Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO 14520-10, modified)

• Part 7: Physical properties and system design of gas extinguishing systems for IG-01 extinguishant (ISO 14520-12, modified)

• Part 8: Physical properties and system design of gas extinguishing systems for IG-100 extinguishant (ISO 14520-13, modified)

• Part 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant (ISO 14520-14, modified)

— Part 10: Physical properties and system design of gas extinguishing systems for IG-541 extinguishant (ISO 14520-15, modified)

ISO 14520-1:2006 has the following foreword:

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 14520-1 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 8, Gaseous media and firefighting systems using gas.

This second edition cancels and replaces the first edition (ISO 14620-1:2000), which has been technically revised.

Annex C has been extensively revised to include polymeric sheet fuel array fire tests [polymethyl methacrylate (PMMA)], [polypropylene (PP)] and [acrylonitrile-butadiene-styrene (ABS)]. These tests are designed to more closely represent plastic fuel hazards such as may be encountered in information technology, telecommunications and process control facilities.

Annex E has been re-structured to accommodate lighter-than-air gases and to provide means for dealing with non-standard (as opposed to geometrically regular) hazard enclosures.

Also incorporated in this revision of ISO 14520-1 are safe personnel exposure guidelines, Annex G, recognizing physiologically based pharmacokinetic (PBPK) modelling and hypoxic guidelines to define safe human exposure limits.

ISO 14520 consists of the following parts, under the general title Gaseous media fire extinguishing systems — Physical properties and system design:

• Part 1: General requirements

• Part 2: CF₃I extinguishant

• Part 5: FK-5-1-12 extinguishant

• Part 6: HCFC Blend A extinguishant

• Part 8: HFC 125 extinguishant

• Part 9. HFC 227ea extinguishant

• Part 10: HFC 23 extinguishant

• Part 11: HFC 236fa extinguishant

• Part 12 IG-01 extinguishant

• Part 13: IG-1OO extinguishant

• Part 14: IG-55 extinguishant

• Part 15: IG-541 extinguishant

Parts 3, 4 and 7, which dealt with FC-2-1-8, FC-3-1-10 and HCFC 124 extinguishants, respectively, have been withdrawn, as these types are no longer manufactured.Introduction

Fire fighting systems covered in this document are designed to provide a supply of gaseous extinguishing medium for the extinction of fire.

Several different methods of supplying extinguishant to, and applying it at, the required point of discharge for fire extinction have been developed in recent years, and there is a need for dissemination of information on established systems and methods. This document has been prepared to meet this need.

In particular, new requirements to eliminate the need to release extinguishants during testing and commissioning procedures are included. These are linked to the inclusion of enclosure integrity testing.

The requirements of this document are made in the light of the best technical data known to the working group at the time of writing but, since a wide field is covered, it has been impracticable to consider every possible factor or circumstance that might affect implementation of the recommendations.

It has been assumed in the preparation of this document that the execution of its provisions is entrusted to people appropriately qualified and experienced in the specification, design, installation, testing, approval, inspection, operation and maintenance of systems and equipment, for whose guidance it has been prepared, and who can be expected to exercise a duty of care to avoid unnecessary release of extinguishant.

Attention is drawn to the Montreal Protocol on substances that deplete the ozone layer.

It is important that the fire protection of a building or plant be considered as a whole. Gaseous extinguishant systems form only a part, though an important part, of the available facilities, but it should not be assumed that their adoption necessarily removes the need to consider supplementary measures, such as the provision of portable fire extinguishers or other mobile appliances for first aid or emergency use, or to deal with special hazards.

Gaseous extinguishants have for many years been a recognized effective medium for the extinction of inflammable liquid fires and fires in the presence of electrical and ordinary Class A hazards, but it should not be forgotten, in the planning of comprehensive schemes, that there may be hazards for which these media are not suitable, or that in certain circumstances or situations there may be dangers in their use requiring special precautions.

Advice on these matters can be obtained from the appropriate manufacturer of the extinguishant or the extinguishing system. Information may also be sought from the appropriate fire authority, the health and safety authorities and insurers. In addition, reference should be made as necessary to other national standards and statutory regulations of the particular country.

It is essential that fire fighting equipment be carefully maintained to ensure instant readiness when required. Routine maintenance is liable to be overlooked or given insufficient attention by the owner of the system. It is, however, neglected at peril to the lives of occupants of the premises and at the risk of crippling financial loss. The importance of maintenance cannot be too highly emphasized. Installation and maintenance should only be done by qualified personnel.