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FLAME SUPERVISION DEVICES FOR GAS BURNING APPLIANCES - THERMOELECTRIC FLAME SUPERVISION DEVICES
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Published date: 12-01-2013
Publisher: Netherlands Standards
1 General 1.1 Object and field of application 1.2 References 1.3 Definitions 1.4 Classification 1.5 Measuring units2 Construction requirements 2.1 General construction requirements 2.2 Materials 2.3 Connections 2.4 Seals for glands for moving parts 2.5 Pressure test nipples 2.6 text deleted 2.7 Ignition3 Performance requirements 3.1 General 3.2 Leak-tightness 3.3 Rated flow rate 3.4 Operating torque and force 3.5 Interlocks 3.6 text deleted 3.7 Closing current 3.8 Torsion and bending 3.9 Durability 3.10 Sealing force4 Test methods 4.1 General 4.2 Leak-tightness 4.3 Rated flow-rate 4.4 Operating torque and force 4.5 Interlocks 4.6 text deleted 4.7 Measurement of the closing current 4.8 Torsion and bending 4.9 Durability 4.10 Measurement of the sealing force 4.11 Electrical equipment test5 Marking, installation and operating instructions 5.1 Marking 5.2 Installation, operating and servicing instructions 5.3 Warning noticeAnnexesA Leak-tightness test - volumetric methodB Leak-tightness test - pressure loss methodC Use of ISO 7-1: 1982 and ISO 228-1: 1982 threads for connectionsD Conversion of pressure loss into leakage rateE Identification of clauses awhich meet the Essential Requirements of the Gas Appliance Directive (90/936/EEC)Tables1 Connection sizes2 Maximum leakage rates3 Nominal sizes DN and operating torque4 Torque and bending moment5 Sequence of testing6 Tightening torque for flange boltsFigures1 Equipment for the flow rate test2 Electrical circuit for measuring the closing current3 Arrangement for torsion test4 Arrangement for bending moment test5 Paint scratch test apparatus6 Various types of thermo-electric flame supervision devices in the de-energized position7 Various types of thermo-electric flame supervision devices in the operating and ignition position8 Apparatus for testing leak-tightness (volumetric method)9 Apparatus for testing leak-tightness (pressure loss method)
Defines the safety, construction and performance requirements for thermoelectric flame supervision devices, energized by a thermocouple intended for use with gas burners, gas appliances and similar use, hereafter referred to as 'controls'.
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