IEC 60730-2-5:2013/AMD1:2017
(Amendment)Amendment 1 - Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical burner control systems
Amendment 1 - Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical burner control systems
Amendement 1 - Commandes électriques automatiques - Partie 2-5: Exigences particulières pour les systèmes de commande électrique automatique des brûleurs
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IEC 60730-2-5 ®
Edition 4.0 2017-08
INTERNATIONAL
STANDARD
AMENDMENT 1
Automatic electrical controls –
Part 2-5: Particular requirements for automatic electrical burner control systems
IEC 60730-2-5:2013-11/AMD1:2017-08(en)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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International Standards for all electrical, electronic and related technologies.
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IEC 60730-2-5 ®
Edition 4.0 2017-08
INTERNATIONAL
STANDARD
AMENDMENT 1
Automatic electrical controls –
Part 2-5: Particular requirements for automatic electrical burner control systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-4747-1
– 2 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
FOREWORD
This amendment has been prepared by IEC technical committee 72: Automatic electrical
controls.
The text of this amendment is based on the following documents:
FDIS Report on voting
72/1084/FDIS 72/1103/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
_____________
1 Scope and normative references
Replace Subclause 1.1 by the following:
1.1 Scope
This part of IEC 60730 applies to automatic electrical burner control systems for the
automatic control of burners for oil, gas, coal or other combustibles intended to be used
• for household and similar use,
• in shops, offices, hospitals, farms and commercial and industrial applications.
This International Standard is applicable
• to a complete burner control system,
• to a separate programming unit,
• to a separate electronic high-voltage ignition source,
• to a separate flame detector and
• to a separate high-temperature operation (HTO) detector.
NOTE 1 Throughout this document, where it can be used unambiguously, the word "system" means "burner
control system" and "systems" means "burner control systems".
© IEC 2017
NOTE 2 Throughout this document, the word "equipment" means "appliance and equipment."
This standard does not apply to thermoelectric flame supervision controls; thermoelectric
flame supervision controls are covered by ISO 23551-6.
This document also applies to electrical burner control systems intended exclusively for
industrial process applications e.g. those applications covered by ISO TC 244 (ISO 13577).
1.1.1 This document applies to the inherent safety, to the declared operating values,
operating times and operating sequences where such are associated with burner safety
and to the testing of automatic electrical burner control systems used in, on, or in
association with, burners.
NOTE Requirements for specific operating values, operating times and operating sequences are given in the
standards for appliances and equipment.
1.1.2 This document applies to AC or DC powered systems with a rated voltage not
exceeding 660 V AC or 600 V DC.
1.1.3 This document does not take into account the response value of an automatic action
of a control, if such a response value is dependent upon the method of mounting the
control in the equipment. Where a response value is of significant purpose for the protection
of the user, or surroundings, the value defined in the appropriate equipment standard or as
determined by the manufacturer applies.
1.1.4 This document applies also to systems incorporating electronic devices, requirements
for which are contained in Annex H.
1.1.5 This document applies to systems using NTC or PTC thermistors, additional
requirements for which are contained in Annex J.
1.1.6 This document includes systems responsive to flame properties and temperature for
HTO.
Delete Subclauses 1.2, 1.3 and 1.4.
1.5 Renumber this subclause as follows:
1.2 Normative references
Delete reference to IEC 61643-11.
Add the following new references to the existing list:
IEC 60079-20-1:2010, Explosive atmospheres – Part 20-1: Material characteristics for gas
and vapour classification – Test methods and data
ISO 23551-6:2014, Safety and control devices for gas burners and gas-burning appliances –
Particular requirements – Part 6: Thermoelectric flame supervision controls
Add the following instruction:
Replacement:
IEC 60127-1:2015, Miniature fuses – Part 1: Definitions for miniature fuses and general
requirements for miniature fuse-links
– 4 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
2 Definitions
Replace the title of Clause 2 by the following:
2 Terms and definitions
Add, after 2.2 Definitions of types of control according to purpose, the following note:
NOTE Definition 2.2.23 is not applicable.
2.2.101
burner control system
Replace the existing definition by the following:
system which includes a programming unit, a flame detector or, if applicable, an HTO
detector and may include an ignition source and/or ignition device and which monitors the
operation of fuel burners
Note 1 to entry: The various functions of the system may be in one or more housings.
Add the following new terms and definitions:
2.2.108
HTO detector
device which provides the programming unit with a signal indicating presence or absence of
HTO
Note 1 to entry: It includes the HTO-sensor and may include an amplifier and a relay for signal transmission.
The amplifier and relay may be in its own housing or combined with the programming unit.
2.2.109
HTO-sensor
device which senses the temperature of a surface or a medium within the combustion
chamber which is in direct contact with a flammable fuel-air mixture and provides a signal
indicating presence or absence of HTO
2.2.110
auto-ignition temperature
AIT
lowest temperature (of a hot surface or the environment) at which an ignition of a flammable
fuel/air mixture occurs
[SOURCE: IEC 60079-20-1:2010,3.3, modified : "or the environment" has been added in the
parenthesis, "at which under specified test conditions" has been deleted and " flammable gas
or vapour in mixture with air or air/inert gas" has been replaced by " flammable fuel/air
mixture"]
2.2.111
high-temperature operation
HTO
operation on the basis of auto-ignition temperature which assures ignition and burning of
fuel
Note 1 to entry: High-temperature operation is used e.g. in fuel cells (IEC 62282-3-100) and in industrial
furnaces and associated processing equipment (ISO 13577) where ignition and burning is detected by means of
sensing the temperature.
Add the following new definition 2.3.32:
© IEC 2017
2.3.32
safety shut-down
Replacement:
de-energization of the main fuel flow means as the result of the action of a limiter, a cut-out or
the detection of an internal fault of the system
Note 1 to entry: Safety shut-down may include additional actions by the system.
2.3.107
Add “flame failure response time” below the term “flame failure lock-out time”.
2.3.117
Add “proved igniter system” below the term “proved igniter”.
2.3.121
running position
Replace the definition by the following:
position denoting that the main burner flame is established and supervised, or the burner is in
HTO and supervised
2.3.122
Add “Void” after term number and delete the term and definition.
Add the following new terms and definitions:
2.3.132
HTO detector response time
period of time between the temperature falling below the defined temperature limit for HTO
and the signal indicating the absence of HTO
2.3.133
HTO detector operating characteristics
that function of the HTO detector which indicates absence or presence of HTO as the output
signal of the HTO detector relating to the input signal
Note 1 to entry: Normally the input signal is provided by a HTO-sensor.
2.3.134
HTO response time
period of time between the signal indicating absence of HTO and proceeding to safety shut-
down or to switch over to flame supervision
2.3.135
HTO signal
output signal of the HTO detector
4 General notes on tests
4.2.1
Replace the word "inclusive" by the words “including the relevant annexes” in the third
sentence between the words “Clauses 18 to 26” and “may” to read "the tests of Clauses 18 to
26 including the relevant annexes".
– 6 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
6 Classification
6.3 According to their purpose
Add the following subclauses:
6.3.107 – HTO detector;
6.3.108 – HTO-sensor.
6.11
In the note, replace “In the countries members of CENELEC” by “In member countries of
CENELEC”.
7 Information
7.2.9
Table 1
Replace title of Table 1 on the first page by the following:
Table 1 (7.2 of edition 3) – Required information and methods of providing information
(1 of 2)
Replace title of Table 1 on the second page by the following:
Table 1 (7.2 of edition 3) – Required information and methods of providing information
(2 of 2)
"7)" “b”
In requirement 7, replace superscript by superscript after “circuit”.
"8)" “c”
In requirement 15, replace superscript by superscript after “enclosure”.
"5)" “e”
In requirement 31, replace superscript by superscript after “component”.
In requirement 103, add “or Maximum flame failure response time”.
Add the following:
139 The defined temperature limit for HTO 11.3.114 D
140 HTO detector response time 11.3.114 D
10 Terminals and terminations
10.2.4.101 Direct plug-in connections
In the first sentence, replace “part 2-5” by “document”.
11 Constructional requirements
Delete subclauses 11.1 and 11.1.2.
© IEC 2017
Replace 11.3.5.2 by the following:
11.3.5.2 Systems of class C control functions shall include at least two switching elements
to directly de-energize the safety relevant terminals.
NOTE 1 The burner control system is a class C control function.
NOTE 2 A single relay operating two independent contacts is considered to be only one switching element.
Designs where relays are used as switching elements, a non-replaceable fuse (see
Table H.24 Note I) in series with two independent relay contacts with I fuse < 0,6 * I relay,
N e
are considered to comply with the following requirements for prevention of common cause
failure.
NOTE 3 I : values for the fuse (see IEC 60127-1:2015, 3.16);
N
I : rated operational current of the contact (see IEC 60947-1:2007; 4.3.2.3)
e
In Part 1, the term
• “safety related output terminals” is equivalent to “valve terminals”.
• “safety shut-down” shall be used as defined in this document,
• “control” shall be used as “burner control systems”.
11.3.5.2.1 Measures to protect against common cause failures
Delete this subclause.
11.3.108.6
In the first sentence, after “flame failure lock-out time”, add “or flame failure response time”.
Add the following new subclause:
11.3.114 For controls intended for HTO using HTO-sensors, the temperature shall be
monitored. In the event the temperature falls below the defined temperature limit for HTO, the
control shall proceed to safety shut-down or switch over to flame supervision (e.g.
ionization, UV, IR etc.). This function (including sensor, detector and programming unit) shall
be a class C control function with type 2 action.
The defined temperature limit for HTO (see Table 1, requirement 13
...
IEC 60730-2-5 ®
Edition 4.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Automatic electrical controls –
Part 2-5: Particular requirements for automatic electrical burner control systems
Commandes électriques automatiques –
Partie 2-5: Exigences particulières pour les systèmes de commande électrique
automatique des brûleurs
IEC 60730-2-5:2013-11/AMD1:2017-08(en-fr)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
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Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
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IEC 60730-2-5 ®
Edition 4.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Automatic electrical controls –
Part 2-5: Particular requirements for automatic electrical burner control systems
Commandes électriques automatiques –
Partie 2-5: Exigences particulières pour les systèmes de commande électrique
automatique des brûleurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 78-2-8322-8365-3
– 2 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
FOREWORD
This amendment has been prepared by IEC technical committee 72: Automatic electrical
controls.
The text of this amendment is based on the following documents:
FDIS Report on voting
72/1084/FDIS 72/1103/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 Scope and normative references
Replace Subclause 1.1 by the following:
1.1 Scope
This part of IEC 60730 applies to automatic electrical burner control systems for the
automatic control of burners for oil, gas, coal or other combustibles intended to be used
• for household and similar use,
• in shops, offices, hospitals, farms and commercial and industrial applications.
This International Standard is applicable
• to a complete burner control system,
• to a separate programming unit,
• to a separate electronic high-voltage ignition source,
• to a separate flame detector and
• to a separate high-temperature operation (HTO) detector.
NOTE 1 Throughout this document, where it can be used unambiguously, the word "system" means "burner
control system" and "systems" means "burner control systems".
NOTE 2 Throughout this document, the word "equipment" means "appliance and equipment."
© IEC 2017
This standard does not apply to thermoelectric flame supervision controls; thermoelectric
flame supervision controls are covered by ISO 23551-6.
This document also applies to electrical burner control systems intended exclusively for
industrial process applications e.g. those applications covered by ISO TC 244 (ISO 13577).
1.1.1 This document applies to the inherent safety, to the declared operating values,
operating times and operating sequences where such are associated with burner safety
and to the testing of automatic electrical burner control systems used in, on, or in
association with, burners.
NOTE Requirements for specific operating values, operating times and operating sequences are given in the
standards for appliances and equipment.
1.1.2 This document applies to AC or DC powered systems with a rated voltage not
exceeding 660 V AC or 600 V DC.
1.1.3 This document does not take into account the response value of an automatic action
of a control, if such a response value is dependent upon the method of mounting the
control in the equipment. Where a response value is of significant purpose for the protection
of the user, or surroundings, the value defined in the appropriate equipment standard or as
determined by the manufacturer applies.
1.1.4 This document applies also to systems incorporating electronic devices, requirements
for which are contained in Annex H.
1.1.5 This document applies to systems using NTC or PTC thermistors, additional
requirements for which are contained in Annex J.
1.1.6 This document includes systems responsive to flame properties and temperature for
HTO.
Delete Subclauses 1.2, 1.3 and 1.4.
1.5 Renumber this subclause as follows:
1.2 Normative references
Delete reference to IEC 61643-11.
Add the following new references to the existing list:
IEC 60079-20-1:2010, Explosive atmospheres – Part 20-1: Material characteristics for gas
and vapour classification – Test methods and data
ISO 23551-6:2014, Safety and control devices for gas burners and gas-burning appliances –
Particular requirements – Part 6: Thermoelectric flame supervision controls
Add the following instruction:
Replacement:
IEC 60127-1:2015, Miniature fuses – Part 1: Definitions for miniature fuses and general
requirements for miniature fuse-links
– 4 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
2 Definitions
Replace the title of Clause 2 by the following:
2 Terms and definitions
Add, after 2.2 Definitions of types of control according to purpose, the following note:
NOTE Definition 2.2.23 is not applicable.
2.2.101
burner control system
Replace the existing definition by the following:
system which includes a programming unit, a flame detector or, if applicable, an HTO
detector and may include an ignition source and/or ignition device and which monitors the
operation of fuel burners
Note 1 to entry: The various functions of the system may be in one or more housings.
Add the following new terms and definitions:
2.2.108
HTO detector
device which provides the programming unit with a signal indicating presence or absence of
HTO
Note 1 to entry: It includes the HTO-sensor and may include an amplifier and a relay for signal transmission.
The amplifier and relay may be in its own housing or combined with the programming unit.
2.2.109
HTO-sensor
device which senses the temperature of a surface or a medium within the combustion
chamber which is in direct contact with a flammable fuel-air mixture and provides a signal
indicating presence or absence of HTO
2.2.110
auto-ignition temperature
AIT
lowest temperature (of a hot surface or the environment) at which an ignition of a flammable
fuel/air mixture occurs
[SOURCE: IEC 60079-20-1:2010,3.3, modified : "or the environment" has been added in the
parenthesis, "at which under specified test conditions" has been deleted and " flammable gas
or vapour in mixture with air or air/inert gas" has been replaced by " flammable fuel/air
mixture"]
2.2.111
high-temperature operation
HTO
operation on the basis of auto-ignition temperature which assures ignition and burning of
fuel
Note 1 to entry: High-temperature operation is used e.g. in fuel cells (IEC 62282-3-100) and in industrial
furnaces and associated processing equipment (ISO 13577) where ignition and burning is detected by means of
sensing the temperature.
Add the following new definition 2.3.32:
© IEC 2017
2.3.32
safety shut-down
Replacement:
de-energization of the main fuel flow means as the result of the action of a limiter, a cut-out or
the detection of an internal fault of the system
Note 1 to entry: Safety shut-down may include additional actions by the system.
2.3.107
Add “flame failure response time” below the term “flame failure lock-out time”.
2.3.117
Add “proved igniter system” below the term “proved igniter”.
2.3.121
running position
Replace the definition by the following:
position denoting that the main burner flame is established and supervised, or the burner is in
HTO and supervised
2.3.122
Add “Void” after term number and delete the term and definition.
Add the following new terms and definitions:
2.3.132
HTO detector response time
period of time between the temperature falling below the defined temperature limit for HTO
and the signal indicating the absence of HTO
2.3.133
HTO detector operating characteristics
that function of the HTO detector which indicates absence or presence of HTO as the output
signal of the HTO detector relating to the input signal
Note 1 to entry: Normally the input signal is provided by a HTO-sensor.
2.3.134
HTO response time
period of time between the signal indicating absence of HTO and proceeding to safety shut-
down or to switch over to flame supervision
2.3.135
HTO signal
output signal of the HTO detector
4 General notes on tests
4.2.1
Replace the word "inclusive" by the words “including the relevant annexes” in the third
sentence between the words “Clauses 18 to 26” and “may” to read "the tests of Clauses 18 to
26 including the relevant annexes".
– 6 – IEC 60730-2-5:2013/AMD1:2017
© IEC 2017
6 Classification
6.3 According to their purpose
Add the following subclauses:
6.3.107 – HTO detector;
6.3.108 – HTO-sensor.
6.11
In the note, replace “In the countries members of CENELEC” by “In member countries of
CENELEC”.
7 Information
7.2.9
Table 1
Replace title of Table 1 on the first page by the following:
Table 1 (7.2 of edition 3) – Required information and methods of providing information
(1 of 2)
Replace title of Table 1 on the
...
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