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oSIST prEN 1866-2:2007
01-marec-2007
Prevozni gasilniki - 2. del: Dodatne zahteve k EN 1866-1 za konstrukcijo, odpornost
proti tlaku in mehanski preskusi za gasilnike z najvišjim dovoljenim tlakom,
enakim ali nižjim od 30 bar
Mobile fire extinguishers - Part 2: Additional requirements to EN 1866-1 for the
construction, resistance to pressure and mechanical tests for extinguishers with a
maximum allowable pressure equal to or lower than 30 bar
Fahrbare Feuerlöscher - Teil 2: Zusätzliche Anforderungen zu EN 1866-1 an die
konstruktive Ausführung, Druckfestigkeit und mechanischen Prüfungen für Feuerlöscher
mit einem Höchstdruck kleiner gleich 30 bar
Extincteurs d'incendie mobiles - Partie 2: Exigences complémentaires a celles de l'EN
1866-1 sur la construction, la résistance a la pression et les essais mécaniques des
extincteurs dont la pression maximale admissible est inférieure ou égale a 30 bar
Ta slovenski standard je istoveten z: prEN 1866-2
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 1866-2:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
DRAFT
prEN 1866-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2006
ICS Will supersede EN 1866:2005
English Version
Mobile fire extinguishers - Part 2: Additional requirements to EN
1866-1 for the construction, resistance to pressure and
mechanical tests for extinguishers with a maximum allowable
pressure equal to or lower than 30 bar
Extincteurs d'incendie mobiles - Partie 2: Exigences
complémentaires à celles de l'EN 1866-1 sur la
construction, la résistance à la pression et les essais
mécaniques des extincteurs dont la pression maximale
admissible est inférieure ou égale à 30 bar
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 70.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1866-2:2006: E
worldwide for CEN national Members.
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prEN 1866-2:2006 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .5
4 Symbols and abbreviations .5
5 Design and prototype testing.6
5.1 Calculation design method.6
5.2 Experimental design method.6
5.3 Prototype testing .6
5.4 Macroscopic examination.7
5.5 Attached parts.7
5.6 Overfill pressure test.7
5.7 Requirements for components subject to pressure .8
6 Materials .8
6.1 Materials for bodies.8
6.2 Materials for operating devices and filling caps .8
6.3 Materials for other components.8
7 Hose assembly and attached components.8
7.1 Requirements.8
7.2 Prototype testing .8
8 Manufacturing .9
8.1 General requirements.9
8.2 Welded and brazed parts .9
8.3 Traceability.9
9 Inspection and testing during manufacturing .10
9.1 Extinguisher bodies .10
9.2 Accessories and fittings (excluding pressure relief devices and fittings to be ruptured on
over pressure).10
9.3 Assemblies .10
Annex A (informative) Classification of the different parts of an extinguisher subject to internal
pressure.11
Annex B (normative) Specifications for plastics components (except hoses, pistols and nozzles).12
Annex C (normative) Symbols of pressures.15
Annex D (normative) Overfill Pressure Test .16
Annex E (normative) Test for burst pressure of hose assembly and attached components.17
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 97/23/EC .18
Bibliography .19
2
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prEN 1866-2:2006 (E)
Foreword
This document (prEN 1866-2:2006) has been prepared by Technical Committee CEN/TC 70 “Manual means
of fire fighting equipment”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1866:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive 97/23/CE.
For relationship with EU Directive 97/23/CE, see informative Annex ZA, which is an integral part of this
document.
This standard EN 1866 consists of the following parts under the general title "Mobile fire extinguishers":
Part 1: Characteristics, performance requirements and test methods
Part 2: Additional requirements to EN 1866-1 for the construction, resistance to pressure and mechanical
tests for extinguishers with a maximum allowable pressure equal to or lower than 30 bar
Part 3: Additional requirements to EN 1866-1 for pressure resistance of CO extinguishers
2
Annexes A, B, C, D, E are normative.
3
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prEN 1866-2:2006 (E)
1 Scope
This European Standard specifies the rules of design, type testing and inspection during manufacturing of
mobile water based and foam fire extinguishers as far as pressure risk is concerned. It applies to mobile fire
extinguishers with a pressure PS equal or less than 30 bar.
NOTE This standard does not specify any metallic materials which comply with the essential requirements of the
Directive 97/23EEC (PED). Materials that successfully pass the essential requirements of the PED may be used.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the cited edition applies. For undated references the latest edition of the referenced
document (including amendments) applies.
EN 3-7, Portable fire extinguishers – Part 7: Characteristics, performance requirements and test methods.
EN 287-1:2004, Approval testing of welders – Fusion welding – Part 1: Steels.
EN 287-2:1992+A1:1997, Approval testing of welders – Fusion welding – Part 2: Aluminium and aluminium
alloys.
EN 288-2:1992+A1:1997, Specification and approval of welding procedures for metallic materials –
Part 2: Welding procedure specification for arc welding.
EN 288-3:1992+A1:1997, Specification and approval of welding procedures for metallic materials –
Part 3: Welding procedure tests for the arc welding of steels.
EN 288-4:1992+A1:1997, Specification and approval of welding procedures for metallic materials –
Part 4: Welding procedure tests for the arc welding of aluminium and its alloys.
EN 1320, Destructive tests on welds in metallic materials – Fracture test.
EN 1418, Welding personnel – Approval testing of welding operators for fusion welding and resistance weld
setters for fully mechanized and automatic welding of metallic materials.
EN 10204, Metallic products – Types of inspection documents.
EN ISO 4892-2, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc sources
(ISO 4892-2:1994).
EN 13445, Unfired pressure vessels – Part 1: General
Unfired pressure vessels – Part 2: Materials
Unfired pressure vessels – Part 3: Design
Unfired pressure vessels – Part 4: Fabrication
Unfired pressure vessels – Part 5: Inspection and testing
4
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prEN 1866-2:2006 (E)
EN 13133, Brazing – Brazer approval.
EN 13134, Brazing – Procedure approval.
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials – Welding
procedure test – Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
(ISO 15614-1:2004).
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions in prEN1866-1: 2005 and following
definitions apply.
3.1
pressure at maximum operating temperature, P (Pressure experimentally measured)
Tmax
pressure measured in the extinguisher after stabilisation during at least 24 h at maximum operating
temperature T (≥ 60 °C) and for cartridge operated extinguishers, the maximum pressure is the maximum
max
pressure recorded for 0.5 seconds during a period of three minutes, excluding the first five seconds after
release of the propellant gas
3.2
maximum allowable pressure, PS (Maximum declared pressure)
maximum pressure for which the equipment is designed, as specified by the manufacturer and which is in any
case greater than or equal to P
Tmax
3.3
bursting pressure Pr
maximum pressure measured during a bursting test
3.4
T
max
maximum operating temperature declared by the manufacturer
3.5
T
min
minimum operating temperature declared by the manufacturer
4 Symbols and abbreviations
For the purposes of this standard, the following symbols and abbreviations apply:
PS The maximum allowable pressure in bar.
PT The test pressure in bar.
D Nominal external diameter of the body, or the largest external value of the perpendicular section of the
axis, in mm.
DN Diameter in mm for circular products submitted to pressure or the diameter in mm of the equivalent flow
section for non circular parts.
Pr Bursting pressure in bar.
5
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prEN 1866-2:2006 (E)
T The maximum operating temperature, in °C.
max
P The pressure at maximum operating temperature, in bar.
Tmax
T The minimum operating temperature, in °C.
min
5 Design and prototype testing
5.1 Calculation design method
EN 13445 Part 1 to 5 is a recognised calculation method. If a body of a mobile fire extinguisher is designed
with this recognised calculation method no burst pressure test is required.
5.2 Experimental design method
If a body of a mobile fire extinguisher is designed with a experimental design method a burst test of the body
is required.
The wall thickness of the body shall not be less than the wall thickness given by the formula below.
D×PT
S = for the wall thickness of the body.
20×R
where
S is the wall thickness, in millimetres;
D is the external diameter of the body, in millimetres;
PT is the test pressure, being 1,43 x PS, in bar ;
2
R is 80 % of the minimum yield strength of the material specified by the manufacturer, in N/mm .
5.3 Prototype testing
5.3.1 Pressure test
5.3.1.1 Test conditions
Two bodies including accessories shall be submitted to the hydrostatic pressure test which shall be carried out
using apparatus that permits a regular increase of pressure at a maximum of 2 bar/s up to the moment the
test pressure PT is reached.
5.3.1.2 Requirements
The test pressure PT shall not be less than 1,43 times the maximum allowable pressure PS with a minimum of
20 bar.
The test pressure shall be maintained for a minimum of 30 s and the body shall remain tight.
After the test, the volume of the body shall not increase by more than 1 %.
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prEN 1866-2:2006 (E)
5.3.2 Burst test
5.3.2.1 Test conditions
If the body is not designed in accordance with EN 13445 one sample shall be subjected to a burst test.
The burst test under hydraulic pressure shall be carried out using an installation which permits a regular
increase of pressure at not more than 2 bar/s until the body bursts and also permits the variation of pressure
to be recorded as a function of time.
5.3.2.2 Requirements - Bodies
The burst pressure P shall not be less than 2,7 times the maximum pressure PS with a minimum of 55 bar.
r
The burst test shall not cause the body to fragment.
The main break shall show no signs of brittleness, for example the edges of the break shall not be radial, but
shall be inclined relative to a diametrical plane and shall have a reduction in area over their entire thickness.
The break shall not show any obvious defects in the material.
The break shall not originate in the body marking or weld.
5.3.2.3 Requirements – Fittings
The bursting test shall be carried out on three samples of all fittings, except for hoses and coupling
(see chapter 6.7).
The bursting pressure P shall not be less than 2,7 times the maximum allowable pressure PS.
r
The burst test shall not cause the valve and fitting to fragment.
The break shall not show any obvious defects in the material.
The break shall not originate in the valve or fitting marking area.
5.4 Macroscopic examination
On two bodies each weld subject to pressure shall be examined, the macroscopic examination of a transverse
section of the weld, in accordance with EN 1320, shall show complete fusion over the area with preparation
acid
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