EN 125:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flammenüberwachungseinrichtungen für Gasgeräte - Thermoelektrische ZündsicherungenDispositifs de surveillance de flamme pour appareils utilisant les combustibles gazeux - Dispositifs thermoélectriques de sécurité à l'allumage et à l'extinctionFlame supervision devices for gas burning appliances - Thermoelectric flame supervision devices27.060.20Plinski gorilnikiGas fuel burnersICS:Ta slovenski standard je istoveten z:EN 125:2010SIST EN 125:2010en,fr,de01-november-2010SIST EN 125:2010SLOVENSKI
STANDARDSIST EN 125:1997/A1:1997SIST EN 125:19971DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 125
May 2010 ICS 27.060.20 Supersedes EN 125:1991English Version
Flame supervision devices for gas burning appliances - Thermoelectric flame supervision devices
Dispositifs de surveillance de flamme pour appareils brûlant du gaz - Dispositifs thermoélectriques de surveillance de flamme
Flammenüberwachungseinrichtungen für Gasgeräte - Thermoelektrische Zündsicherungen This European Standard was approved by CEN on 22 April 2010.
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, Croatia, 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:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 125:2010: ESIST EN 125:2010

Gas connections in common use in the various countries . 17Annex B (informative)
Leak-tightness test − volumetric method . 18Annex C (informative)
Leak-tightness test − pressure loss method . 19Annex D (normative)
Conversion of pressure loss into leakage rate . 20Annex E (normative)
Electrical/electronic component fault modes . 21Annex F (normative)
Additional requirements for safety accessories and pressure accessories as defined in EU Directive 97/23/EC . 22Annex G (normative)
Materials for pressurized parts . 23Annex H (informative)
Additional materials for pressurized parts . 24Annex I (normative)
Requirements for controls used in DC supplied gas burners and gas burning appliances . 25Annex AA (informative)
Types of flame supervision devices . 26Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC relating to appliances burning gaseous fuels . 28Bibliography . 30 Figures Figure AA.1 — Various types of thermoelectric flame supervision device in the closed position . 26Figure AA.2 — Various types of thermoelectric flame supervision device in the operating and ignition position . 27SIST EN 125:2010

Tables Table 1 — Sequence of testing . 10Table 2 — Maximum leakage rates . 10Table 3 — Nominal sizes and operating torque . 12Table 4 — Operating cycles . 15Table ZA.1 — Correspondence between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels . 28 SIST EN 125:2010

This European Standard is applicable to controls with declared maximum inlet pressures up to and including 500 kPa (5 bar) of nominal connection sizes up to and including DN 50 for use with one or more fuel gases in accordance with EN 437. This European Standard is not applicable to: a) the thermocouple; b) controls which use auxiliary energy (e.g. electrical energy supplied externally). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13611:2007, Safety and control devices for gas burners and gas burning appliances — General requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13611:2007 and the following apply. 3.101 thermocouple thermoelectric flame sensing element that responds to the temperature of the supervised flame, and in which the flame effect produces an electromotive force (e.m.f.) 3.102 flame supervision device control which, in response to the e.m.f. produced by the thermocouple, maintains the gas way to the main burner or the main burner and the pilot burner open and which shuts off the gas way to the main burner at least, after extinction of the supervised flame NOTE For further reference
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