EN 12953-9:2007

Shell boilers - Part 9: Requirements for limiting devices of the boiler and accessories

This European Standard specifies requirements for limiters (or limiting devices) which are incorporated into safety systems for shell boilers as defined in EN 12953-1.
A limiter (or limiting device) can be either:
-   a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3, and needs to include the safety logic and final actuator, or
-   one element of a safety system, for example, a self-monitoring water level sensor used as part of a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3. The overall boiler protection function needs to be provided in association with additional safety logic (where appropriate) and a final actuator.
The design requirements and examination of functional capability for the limiters are covered in this European Standard.
For an explanation of the extent of the limiter (or limiting device) see Figure A.1.

Großwasserraumkessel - Teil 9: Anforderungen an Begrenzungseinrichtungen an Kessel und Zubehör

Diese Europäische Norm legt die Anforderungen an Begrenzer (oder Begrenzungseinrichtungen) fest, die in Sicherheitssystemen für Großwasserraumkessel nach EN 12953 1 eingebaut sind.
Ein Begrenzer (oder eine Begrenzungseinrichtung) kann entweder
   ein Ausrüstungsteil mit Sicherheitsfunktion sein, wie in der Druckgeräterichtlinie, Artikel 1, 2.1.3, festgelegt, das mit einer Sicherheitskette und einem Stellglied versehen ist, oder
   ein Element eines Sicherheitssystems sein, z. B. ein selbstüberwachender Wasserstandfühler als Teil eines Ausrüstungsteils mit Sicherheitsfunktion nach der Festlegung in der Druckgeräterichtlinie, Artikel 1, 2.1.3. Die Schutzfunktion für den gesamten Kessel wird mit einer zusätzlichen Sicherheitskette (wo angemessen) und einem Stellglied abgedeckt.
Diese Europäische Norm umfasst die Anforderungen an die Ausführung und die Prüfung der Funktions¬sicherheit der Begrenzer.
Der Funktionsumfang des Begrenzers (oder der Begrenzungseinrichtung) ist in Bild A.1 verdeutlicht.

Chaudières à tubes de fumée - Partie 9: Exigences pour les dispositifs de limitation de la chaudière et de ses accessoires

Mnogovodni kotli - 9. del: Zahteve za omejilne naprave kotla in opremo

General Information

• Status: Published
• Publication Date: 03-Jul-2007
• ICS: 27.060.30 - Boilers and heat exchangers
• Technical Committee: CEN/TC 269 - Shell and water tube boilers
• Drafting Committee: CEN/TC 269/WG 3 - Equipment
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 09-Oct-2014
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 12953-9:2007 - Shell boilers - Part 9: Requirements for limiting devices of the boiler and accessories

Relations

• Revised: prEN 12953-9 - Shell boilers - Part 9: Requirements for limiting devices of the boiler and accessories
• Effective Date: 19-Jan-2023

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Shell boilers - Part 9: Requirements for limiting devices of the boiler and accessoriesMnogovodni kotli - 9. del: Zahteve za omejevalne naprave kotla in opremeChaudieres a tubes de fumée - Partie 9: Exigences pour les dispositifs de limitation de la chaudiere et de ses accessoiresGroßwasserraumkessel - Teil 9: Anforderungen an Begrenzungseinrichtungen an Kessel und ZubehörTa slovenski standard je istoveten z:EN 12953-9:2007SIST EN 12953-9:2007en,fr,de27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangersICS:SLOVENSKI
STANDARDSIST EN 12953-9:200701-september-2007







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12953-9July 2007ICS 27.060.30 English VersionShell boilers - Part 9: Requirements for limiting devices of theboiler and accessoriesChaudières à tubes de fumée - Partie 9: Exigences pourles dispositifs de limitation de la chaudière et de sesaccessoiresGroßwasserraumkessel - Teil 9: Anforderungen anBegrenzungseinrichtungen an Kessel und ZubehörThis European Standard was approved by CEN on 26 May 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12953-9:2007: E



EN 12953-9:2007 (E) 2 Contents Page Foreword.4 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Requirements for limiter.9 4.1 General.9 4.2 Materials and design.9 4.3 Electrical equipment.10 4.4 Fault assessment.10 4.5 Marking.12 5 Special requirements for water level limiters.14 5.1 Components.14 5.2 Design.14 5.3 Floating devices.15 5.4 Level electrode devices.15 5.5 Examination of functional capability.16 5.6 Fault detection.
...

SLOVENSKI STANDARD
SIST EN 12953-9:2007
01-september-2007
Mnogovodni kotli - 9. del: Zahteve za omejilne naprave kotla in opremo
Shell boilers - Part 9: Requirements for limiting devices of the boiler and accessories
Großwasserraumkessel - Teil 9: Anforderungen an Begrenzungseinrichtungen an Kessel
und Zubehör
Chaudieres a tubes de fumée - Partie 9: Exigences pour les dispositifs de limitation de la
chaudiere et de ses accessoires
Ta slovenski standard je istoveten z: EN 12953-9:2007
ICS:
27.060.30 Grelniki vode in prenosniki Boilers and heat exchangers
toplote
SIST EN 12953-9:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12953-9:2007

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SIST EN 12953-9:2007
EUROPEAN STANDARD
EN 12953-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2007
ICS 27.060.30

English Version
Shell boilers - Part 9: Requirements for limiting devices of the
boiler and accessories
Chaudières à tubes de fumée - Partie 9: Exigences pour Großwasserraumkessel - Teil 9: Anforderungen an
les dispositifs de limitation de la chaudière et de ses Begrenzungseinrichtungen an Kessel und Zubehör
accessoires
This European Standard was approved by CEN on 26 May 2007.
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
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12953-9:2007: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 12953-9:2007
EN 12953-9:2007 (E)
Contents Page
Foreword. 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements for limiter . 9
4.1 General. 9
4.2 Materials and design . 9
4.3 Electrical equipment. 10
4.4 Fault assessment. 10
4.5 Marking . 12
5 Special requirements for water level limiters .14
5.1 Components. 14
5.2 Design . 14
5.3 Floating devices. 15
5.4 Level electrode devices .
...