Safety and control devices for burners and appliances burning gaseous and/or liquid fuels - Valve proving systems for automatic shut-off valves

This European Standard specifies safety, constructional and performance requirements of valve-proving systems, hereafter referred to as VPS, intended for use with gas burners and gas-burning appliances. It also describes the test procedures for checking compliance with these requirements and provides information necessary for the purchaser and user.
This European Standard applies to all types of VPS which are used for the automatic detection of leakage in a gas burner section having at least two valves designed in accordance with EN 161 and which give a signal if the leakage of one of the valves exceeds the detection limit.
This European Standard applies to VPSs with a maximum working pressure up to and including 500 kPa for use in systems using fuel gases of the 1st, 2nd or 3rd families.
This European Standard does not apply to VPSs for use in explosive atmospheres.
This European Standard is applicable to AC and DC supplied VPS (for VPS supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks VPS see Annex I).
Provisions for production control are not part of this European Standard.

Sicherheits- und Regeleinrichtungen für Brenner und Brennstoffgeräte für gasförmige und/oder flüssige Brennstoffe - Ventilüberwachungssysteme für automatische Absperrventile

EN 13611:2019, Abschnitt 1, wird durch Folgendes ersetzt:
Dieses Dokument legt sicherheitstechnische, Konstruktions  und Leistungsanforderungen an Ventilüber-wachungssysteme für Gasbrenner und Gasgeräte, im Folgenden VPS genannt, fest. Sie beschreibt darüber hinaus die Prüfverfahren für die Überprüfung auf Einhaltung dieser Anforderungen und liefert die für den Käufer und den Anwender erforderlichen Angaben.
Dieses Dokument gilt für alle Arten von VPS, die für die automatische Erkennung einer Leckage in einem Gasbrennerabschnitt mit mindestens zwei Ventilen, ausgeführt nach EN 161, eingesetzt werden und die ein Signal abgeben, wenn die Leckage eines Ventils den Empfindlichkeitsgrenzwert überschreitet.
Dieses Dokument gilt für VPS für Brenngase mit einem maximalen Arbeitsdruck von bis zu einschließlich 500 kPa.
Es ist nicht für VPS zum Einsatz in explosionsgefährdeten Atmosphären anwendbar.
Dieses Dokument gilt für mit Wechsel  und mit Gleichspannung betriebene VPS (für VPS, die mit eigenständigen Batteriesystemen, Batteriesystemen für mobile Anwendungen oder Systemen betrieben werden, die für den Anschluss an Gleichspannungsversorgungsnetze vorgesehen sind, siehe Anhang I).
Festlegungen für die Produktionskontrolle sind nicht Gegenstand dieses Dokuments.

Équipements auxiliaires pour brûleurs et appareils utilisant des combustibles gazeux ou liquides - Systèmes de contrôle d’étanchéité pour robinets automatiques de sectionnement

L'Article 1 de l'EN 13611:2019 est remplacé par ce qui suit :
Le présent document précise les exigences pour la sécurité, la construction et le fonctionnement des systèmes de contrôle d'étanchéité, dénommés ci-après SCE, prévus pour une utilisation avec les brûleurs et appareils à gaz. Il décrit également les modes opératoires d'essai pour le contrôle de la conformité à ces exigences et fournit les informations nécessaires à l'acheteur et l'utilisateur.
Le présent document s'applique aux SCE qui sont utilisés pour une détection automatique de fuite sur une partie de la ligne gaz d'un brûleur ayant au moins deux robinets conçus conformément à l'EN 161, et qui donnent un signal si l'un des deux robinets présente un débit de fuite supérieur au niveau de détection du SCE.
Le présent document s'applique aux SCE pour les combustibles gazeux ayant une pression de service maximale allant jusqu'à 500 kPa inclus.
Le présent document ne s'applique pas aux SCE prévus pour être utilisés en atmosphère explosive.
Le présent document couvre les SCE alimentés en courant alternatif et en courant continu (pour les SCE alimentés par des systèmes de batterie autonomes, des systèmes de batterie pour applications mobiles ou des systèmes destinés à être connectés au réseau d'alimentation en courant continu, voir Annexe I).
Les dispositions de contrôle de la production ne font pas partie du présent document.

Varnostne in nadzorne naprave za gorilnike in aparate na plin in/ali tekoča goriva - Sistemi za preskušanje samodejnih zapornih ventilov

General Information

Status
Not Published
Public Enquiry End Date
02-Nov-2020
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
03-Sep-2020
Due Date
21-Jan-2021
Completion Date
23-Dec-2020

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SLOVENSKI STANDARD
oSIST prEN 1643:2020
01-oktober-2020

Varnostne in nadzorne naprave za gorilnike in aparate na plin in/ali tekoča goriva -

Sistemi za preskušanje samodejnih zapornih ventilov

Safety and control devices for burners and appliances burning gaseous and/or liquid

fuels - Valve proving systems for automatic shut-off valves

Sicherheits- und Regeleinrichtungen für Brenner und Brennstoffgeräte für gasförmige

und/oder flüssige Brennstoffe - Ventilüberwachungssysteme für automatische
Absperrventile

Équipements auxiliaires pour brûleurs et appareils utilisant des combustibles gazeux ou

liquides - Systèmes de contrôle d’étanchéité pour robinets automatiques de
sectionnement
Ta slovenski standard je istoveten z: prEN 1643
ICS:
23.060.40 Tlačni regulatorji Pressure regulators
27.060.01 Gorilniki in grelniki vode na Burners and boilers in
splošno general
oSIST prEN 1643:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1643:2020
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oSIST prEN 1643:2020
DRAFT
EUROPEAN STANDARD
prEN 1643
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 23.060.40 Will supersede EN 1643:2014
English Version
Safety and control devices for gas burners and gas burning
appliances - Valve proving systems for automatic shut-off
valves

Dispositifs de commande et de sécurité pour brûleurs à Sicherheits-, Regel- und Steuereinrichtungen für

gaz et appareils à gaz - Systèmes de contrôle Gasbrenner und Gasgeräte -

d'étanchéité pour robinets automatiques de Ventilüberwachungssysteme für automatische

sectionnement Absperrventile

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 58.

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 CEN-CENELEC

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1643:2020 E

worldwide for CEN national Members.
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oSIST prEN 1643:2020
prEN 1643:2020 (E)
1 Contents Page

2 European foreword ...................................................................................................................................................... 5

3 Introduction .................................................................................................................................................................... 6

4 1 Scope .................................................................................................................................................................... 7

5 2 Normative references .................................................................................................................................... 7

6 3 Terms and definitions ................................................................................................................................... 8

7 4 Classification................................................................................................................................................... 10

8 4.1 Classes of control .......................................................................................................................................... 10

9 4.2 Groups of control .......................................................................................................................................... 10

10 4.3 Classes of control functions ....................................................................................................................... 10

11 4.4 Types of DC supplied controls .................................................................................................................. 10

12 5 Test conditions and uncertainty of measurements .......................................................................... 10

13 5.1 Test conditions .............................................................................................................................................. 10

14 5.2 Uncertainty of measurements .................................................................................................................. 10

15 6 Design and construction ............................................................................................................................. 10

16 6.1 General.............................................................................................................................................................. 10

17 6.2 Mechanical parts of the control ............................................................................................................... 11

18 6.3 Materials .......................................................................................................................................................... 11

19 6.4 Gas connections ............................................................................................................................................. 11

20 6.5 Electrical parts of the control ................................................................................................................... 11

21 6.5.1 General.............................................................................................................................................................. 11

22 6.5.2 Switching elements ...................................................................................................................................... 11

23 6.5.3 Electrical components ................................................................................................................................. 12

24 6.6 Protection against internal faults for the purpose of functional safety .................................... 12

25 6.6.1 Design and construction requirements ................................................................................................ 12

26 6.6.2 Class A ............................................................................................................................................................... 12

27 6.6.3 Class B ............................................................................................................................................................... 12

28 6.6.4 Class C ................................................................................................................................................................ 12

29 6.6.5 Circuit and construction evaluation....................................................................................................... 14

30 6.101 Additional constructional requirements for VPS .............................................................................. 14

31 6.101.1 Signal for indication ............................................................................................................................ 14

32 6.101.2 VPS setting ............................................................................................................................................... 14

33 7 Performance ................................................................................................................................................... 15

34 7.1 General.............................................................................................................................................................. 15

35 7.2 Leak-tightness ................................................................................................................................................ 15

36 7.2.1 Requirements ................................................................................................................................................. 15

37 7.2.2 Tests ................................................................................................................................................................... 17

38 7.3 Torsion and bending .................................................................................................................................... 17

39 7.4 Rated flow rate ............................................................................................................................................... 17

40 7.5 Durability ......................................................................................................................................................... 17

41 7.6 Performance tests for electronic controls ........................................................................................... 17

42 7.7 Long-term performance for electronic controls ................................................................................ 17

43 7.7.1 General.............................................................................................................................................................. 17

44 7.7.2 Stress test ......................................................................................................................................................... 17

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45 7.7.3 Long term performance tests ................................................................................................................... 18

46 7.8 Data exchange ................................................................................................................................................ 18

47 7.101 Functional requirements ........................................................................................................................... 18

48 7.101.1 General ..................................................................................................................................................... 18

49 7.101.2 Programme sequence ......................................................................................................................... 18

50 7.101.3 Timing ...................................................................................................................................................... 18

51 7.101.4 Testing of the programme sequence and timing ...................................................................... 19

52 7.101.5 Detection limit ....................................................................................................................................... 19

53 7.101.6 Self-checking .......................................................................................................................................... 19

54 7.101.7 Lock-out and reset device ................................................................................................................. 19

55 8 Electrical requirements.............................................................................................................................. 20

56 8.1 General ............................................................................................................................................................. 20

57 8.2 Protection by enclosure ............................................................................................................................. 20

58 9 Electromagnetic compability (EMC) ...................................................................................................... 20

59 9.1 Protection against environmental influences .................................................................................... 20

60 9.2 Supply voltage variations below 85 % of rated voltage ................................................................. 21

61 9.3 Voltage dips and interruptions ................................................................................................................ 21

62 9.4 Supply frequency variations ..................................................................................................................... 21

63 9.5 Surge immunity tests................................................................................................................................... 22

64 9.6 Electrical fast transient/burst ................................................................................................................. 22

65 9.7 Immunity to conducted disturbances induced by radio frequency fields ............................... 22

66 9.8 Immunity to radiated disturbances induced by radio frequency fields ................................... 23

67 9.9 Electrostatic discharge tests ..................................................................................................................... 23

68 9.10 Power frequency magnetic field immunity tests .............................................................................. 23

69 9.11 Harmonics and interharmonics including mains signalling at a. c. power port, low

70 frequency immunity tests .......................................................................................................................... 23

71 10 Marking, instructions .................................................................................................................................. 23

72 10.1 Marking ............................................................................................................................................................ 23

73 10.2 Instructions ..................................................................................................................................................... 24

74 10.3 Warning Notice .............................................................................................................................................. 24

75 Annex A (informative) Abbreviations and Symbols ........................................................................................ 25

76 Annex B (informative) Leak-tightness tests for gas controls − volumetric method ............................ 26

77 Annex C (informative) Leak-tightness tests for gas controls − pressure loss method ....................... 27

78 Annex D (normative) Calculation of pressure loss into leakage rate ....................................................... 28

79 Annex E (normative) Electrical/electronic component fault modes ........................................................ 29

80 Annex F (normative) Additional requirements for safety accessories and pressure

81 accessories as defined in EU Directive 2014/68/EU ....................................................................... 31

82 Annex G (normative) Materials for pressurized parts ................................................................................... 32

83 Annex H (informative) Additional materials for pressurized parts .......................................................... 33

84 Annex I (normative) Requirements for controls used in DC supplied burners and appliances

85 burning gaseous or liquide fuels ............................................................................................................. 34

86 Annex J (normative) Method for the determination of a Safety Integrity Level (SIL) ......................... 36

87 Annex K (normative) Method for the determination of a Performance Level (PL) ............................. 37

88 Annex L (informative) Relationship between Safety Integrity Level (SIL) and Performance

89 Level (PL) ......................................................................................................................................................... 38

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90 Annex M (normative) Reset functions .................................................................................................................. 39

91 Annex N (informative) Guidance document on Environmental Aspects ................................................. 40

92 Annex O (normative) Seals of elastomer, cork and synthetic fibre mixtures ........................................ 41

93 Annex AA (informative) Application Guidance ................................................................................................. 42

94 Annex ZA (informative) Relationship between this European Standard and the essential

95 requirements of EU Directive 2009/142/EC aimed to be covered ............................................. 43

96 Annex ZB (informative) Relationship between this European Standard and the essential

97 requirements of Regulation (EU) 2016/426 aimed to be covered ............................................. 44

98 Annex ZC (informative) Relationship between this European Standard and the Essential

99 Safety Requirements of EU Directive 2014/68/EU aimed to be covered ................................. 47

100 Bibliography ................................................................................................................................................................. 48

101
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oSIST prEN 1643:2020
prEN 1643:2020 (E)
102 European foreword

103 This document (prEN 1643:2020) has been prepared by Technical Committee CEN/TC 58 “Safety and

104 control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is

105 held by BSI.
106 This document is currently submitted to the CEN Enquiry
107 This document will supersede EN 1643:2014.

108 This document has been prepared under a mandate given to CEN by the European Commission and the

109 European Free Trade Association, and supports essential requirements of Regulation (EU) 2016/426.

110 For relationship with EU Regulation, see informative Annexes ZA, ZB and ZC, which are an integral part

111 of this document.

112 Note that the following provides details of significant technical changes between this document and the

113 previous edition:
114 a) Alignment with EN 13611:2019;
115 b) Update on the requirements from ISO 23551-4:2018;

116 c) Annex ZB has been added with respect to Regulation (EU) 2016/426 on appliances burning gaseous

117 fuels (GAR).
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118 Introduction

119 This document refers to clauses of EN 13611:2019 or adapts it by stating “with the following

120 modification”, “with the following addition”, “is replaced by the following” or “is not applicable” in the

121 corresponding clause. This document adds clauses or subclauses to the structure of EN 13611:2019

122 which are particular to this document, i.e. subclauses or annexes which are additional to those in

123 EN 13611 are numbered starting from 101 or are designated as Annex AA, Annex BB, Annex CC etc. It

124 should be noted that these clauses and subclauses are not indicated as an addition. If by reference to

125 EN 13611 the term “control” is given, this term should be read as valve-proving systems.

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126 1 Scope
127 EN 13611:2019, Clause 1 is replaced by following:

128 This document specifies safety, constructional and performance requirements of valve-proving systems,

129 hereafter referred to as VPS, intended for use with gas burners and gas-burning appliances. It also

130 describes the test procedures for checking compliance with these requirements and provides

131 information necessary for the purchaser and user.

132 This document applies to all types of VPS which are used for the automatic detection of leakage in a gas

133 burner section having at least two valves designed in accordance with EN 161 and which give a signal if

134 the leakage of one of the valves exceeds the detection limit.

135 This document applies to VPS for fuel gases with a maximum working pressure up to and including

136 500 kPa.
137 This document does not apply to VPSs for use in explosive atmospheres.

138 This document is applicable to AC and DC supplied VPS (for VPS supplied by stand-alone battery

139 system, battery systems for mobile applications or systems which are intended to be connected to DC

140 supply networks VPS see Annex I).
141 Provisions for production control are not part of this document.
142 2 Normative references

143 The following documents are referred to in the text in such a way that some or all of their content

144 constitutes requirements of this document. For dated references, only the edition cited applies. For

145 undated references, the latest edition of the referenced document (including any amendments) applies.

146 EN 161, Automatic shut-off valves for gas burners and gas appliances
147 EN 1854, Pressure sensing devices for gas burners and gas burning appliances

148 EN 13611:2019, Safety and control devices for burners and appliances burning gaseous and/or liquid

149 fuels - General requirements

150 EN 60730-1:2016, Automatic electrical controls — Part 1: General requirements (IEC 60730-1:2013,

151 modified + COR1:2014)

152 EN 60730-2-5:2015, Automatic electrical controls — Part 2-5: Particular requirements for automatic

153 electrical burner control systems (IEC 60730-2-5:2013, modified)

154 EN 60947-5-1:2017, Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and

155 switching elements - Electromechanical control circuit devices
156 (IEC 60947-5-1:2016+IEC 60947-5-1:2016/COR1:2016)

157 EN 61810-1:2015, Electromechanical elementary relays — Part 1: General requirements

158 (IEC 61810-1:2015)
As amended by EN 60730-1:2016/A1:2019.
As amended by EN 60730-2-5:2015/A1:2019.
As impacted by EN 61810-1:2015/AC:2017
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159 3 Terms and definitions

160 For the purposes of this document, the terms and definitions given in EN 13611:2019 and the following

161 apply.

162 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

163 — IEC Electropedia: available at http://www.electropedia.org/
164 — ISO Online browsing platform: available at http://www.iso.org/obp
165 3.101
166 valve proving system
167 VPS

168 system to check the effective closure of automatic shut-off valves by detecting leakage, that often

169 consists of a programming unit, a measuring device, valves and other functional assemblies

170 3.102
171 VPS programming unit
172 unit which follows a predetermined sequence of valve proving actions
173 3.103
174 detecting device
175 device for direct or inferential detection of leakage
176 EXAMPLE Leakage is detected by measuring flow or pressure.
177 3.104
178 VPS operational time
179 time taken by the VPS to perform its entire cycle of operation
180 3.105
181 detection limit

182 maximum amount of leakage that can occur before the VPS is required to give a signal

183 Note 1 to entry: See Figure 1.
184 3.106
185 detection setting
186 actual leakage rate at which the VPS gives a signal
187 Note 1 to entry: See Figure 1.
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oSIST prEN 1643:2020
prEN 1643:2020 (E)
188
189 Key
X 3
burner heat, gas flow, expressed in m /h
Y 3
detected leakage rate, expressed in dm /h
1 detection limit, see 3.105
2 detection setting, see 3.106
190 Figure 1 — Illustration of detection limit and detection setting
191 3.107
192 leakage testing time
193 time in which the VPS monitors a gas valve for leakage
194 3.108
195 safety shutdown

196 process which is effected immediately following the detection of a leakage exceeding the detection limit,

197 or detection of an internal fault, disabling energisation of the ignition and of the automatic shut-off

198 valves
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199 3.109
200 volatile lock-out

201 safety shutdown condition of the system where a restart can only be accomplished by either the manual

202 reset of the system, or an interruption of the main power and its subsequent restoration

203 3.110
204 non-volatile lock-out

205 safety shutdown condition of the system, where a restart can only be accomplished by the manual reset

206 of the system and by no other means
207 4 Classification
208 4.1 Classes of control
209 EN 13611:2019, 4.1 is not applicable.
210 4.2 Groups of control
211 Shall be according to EN 13611:2019, 4.2.
212 4.3 Classes of control functions
213 Shall be according to EN 13611:2019, 4.3 with the following addition:

214 The valve proving system for automatic shut-off valves is a Class C control function.

215 4.4 Types of DC supplied controls
216 Shall be according to EN 13611:2019, 4.4
217 5 Test conditions and uncertainty of measurements
218 5.1 Test conditions
219 Shall be according to EN 13611:2019, 5.1. with following addition:

220 All tests are performed in the order written in this document (i.e. EN 1643) except for that of 6.6 and

221 7.7.
222 5.2 Uncertainty of measurements
223 Shall be according to EN 13611:2019, 5.2.
224 6 Design and construction
225 6.1 General
226 EN 13611:2019, 6.1, applies, with the following addition.

227 The VPS shall be designed such that changes in critical circuit component values (such as those affecting

228 timing or sequence) within the worst case tolerances of the components specification, including the

229 long-term stability, shall result in the system continuing to function in accordance with this document.

230 Compliance shall be checked by worst-case analysis.

231 The construction of any additional functions included in the VPS for which no provisions exist in this

232 document shall be such that they do not degrade the safe and correct operation.

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233 Where components are used to complete the VPS, these components shall comply with the relevant

234 harmonized European controls Standard. Valves (e.g. for pressurizing and relieving the test section)

235 integrated into the VPS functional sequence shall comply with EN 161 Class A, if not otherwise specified

236 by a relevant appliance standard, and pressure-sensing devices, with EN 1854.

237 6.2 Mechanical parts of the control
238 Shall be according to EN 13611:2019, 6.2.
239 6.3 Materials
240 Shall be according to EN 13611:2019, 6.3.
241 6.4 Gas connections
242 Shall be according to EN 13611:2019, 6.4.
243 6.5 Electrical parts of the control
244 6.5.1 General
245 Shall be according to EN 13611:2019, 6.5.1 with the following addition:

246 The construction of any additional functions included in the valve proving system, programming unit or

247 flame detector device for which no provisions exist in this document, shall be such that they do not

248 degrade the safe and correct operation of the valve proving system.
249 6.5.2 Switching elements
250 6.5.2.1 Requirements
251 Shall be according to EN 13611:2019, 6.5.2.1 with the following addition:

252 Measures shall be taken to protect against failure of two (or more) switching elements, due to a

253 common cause, by an external short circuit that would prevent the valve proving system from

254 performing a safety shutdown.

255 Acceptable methods are current limitation, overcurrent protection device or internal fault detecting

256 functions.

257 The suitability of measures to maintain the capability to interrupt the energization of the shut-off valve

258 terminals by means of at least one switching element or a non-replaceable overcurrent protection

259 device has been interrupted shall be verified by the following test.
260 6.5.2.2 Tests of protecting measures against failure of switching elements

261 Shall be according to EN 13611:2019, 6.5.2.1 with the following modifications:

262 For the purpose of this clause, the terms “safety related output terminals” or “output terminals” are

263 replaced by “shut-off valve terminals”.
264 Delete in the brackets of the first para
...

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