SIST EN 60730-2-6:2016
Automatic electrical controls - Part 2-6: Particular requirements for automatic electrical pressure sensing controls including mechanical requirements
Automatic electrical controls - Part 2-6: Particular requirements for automatic electrical pressure sensing controls including mechanical requirements
This part of IEC 60730 applies to automatic electrical pressure sensing controls with a
minimum gauge pressure rating of –60 kPa and a maximum gauge pressure rating of
4,2 MPa, for use in, on or in association with, equipment. The equipment may use electricity,
gas, oil, solid fuel, solar thermal energy, etc. or a combination thereof.
NOTE Throughout this standard, the word “equipment” includes “appliances” and “control system”.
This standard is also applicable to individual pressure sensing controls utilized as part of a
control system or pressure sensing controls which are mechanically integral with multifunctional
controls having non-electrical outputs.
Automatic electrical pressure sensing controls for equipment used by the public, such as
equipment intended to be used by laymen in shops, in light industry and on farms, are within
the scope of this standard.
This standard does not apply to pressure sensing controls intended exclusively for industrial
process applications unless explicitly mentioned in the relevant equipment standard.
Automatische elektrische Regel- und Steuergeräte für den Hausgebrauch und ähnliche Anwendungen - Teil 2-6: Besondere Anforderungen an automatische elektrische Druckregel- und Steuergeräte einschließlich mechanischer Anforderungen
Dispositifs de commande électrique automatiques à usage domestique et analogue - Partie 2-6: Règles particulières pour les dispositifs de commande électrique automatiques sensibles à la pression y compris les exigences mécaniques
IEC 60730-2-6:2015 s'applique aux dispositifs de commande électrique automatiques sensibles à la pression avec des caractéristiques assignées de pression minimales de -60 kPa et des caractéristiques assignées de pression maximales de 4,2 Mpa, destinés à être utilisés dans, sur ou avec des matériels. Les matériels peuvent utiliser l'électricité, le gaz, le pétrole, des combustibles solides, l'énergie thermique solaire, etc. ou une combinaison de ces sources d’énergie. La présente norme s’applique également aux dispositifs de commande sensibles à la pression individuels utilisés comme partie d'un système de commande ou comme dispositifs de commande sensibles à la pression intégrés mécaniquement dans des dispositifs de commande multifonctions ayant des sorties non électriques. Les dispositifs de commande électrique automatiques sensibles à la pression pour matériels utilisés par le public, par exemple les matériels destinés à être utilisés par des personnes inexpérimentées dans les magasins, l’industrie légère et dans les fermes, relèvent du domaine d’application de la présente norme.
La présente norme ne s'applique pas aux dispositifs de commande sensibles à la pression prévus exclusivement pour des applications industrielles, sauf mention contraire dans la norme de matériel appropriée. La présente norme s’applique à la sécurité intrinsèque, aux valeurs de fonctionnement et aux séquences de fonctionnement dans la mesure où elles interviennent dans la protection des matériels, ainsi qu’aux essais des dispositifs de commande électrique automatiques sensibles à la pression utilisés dans, sur ou avec des matériels.
La présente norme s’applique également aux systèmes et dispositifs de commande sensibles à la pression de sécurité fonctionnelle et de sécurité peu complexe.
La présente norme s'applique également aux dispositifs de commande sensibles à la pression pour appareils d’utilisation faisant partie du domaine d'application de l’IEC 60335-1.
Cette troisième édition annule et remplace la deuxième édition parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- alignement du texte de cette édition sur celui de l’IEC 60730-1, Édition 5;
- modification des exigences de la fonction de commande de classe B (H.27.1.2.2);
- modification des exigences de la fonction de commande de classe C (H.27.1.2.3);
- modification des exigences relatives aux pannes pendant le verrouillage ou l’arrêt de sécurité.
La présente partie 2 est destinée à être utilisée conjointement avec l’IEC 60730-1:2013
Mots clés: commande sensibles, système de commande, sensibles à la pression
Avtomatske električne krmilne naprave za uporabo v gospodinjstvu in za podobno uporabo - 2-6. del: Posebne zahteve za avtomatske električne, na tlak občutljive naprave, vključno z mehanskimi zahtevami
Ta del standarda IEC 60730 se uporablja za avtomatske električne, na tlak občutljive naprave z najmanjšo stopnjo tlaka v merilniku –60 kPa in največjo stopnjo tlaka v merilniku 4,2 MPa, za uporabo v/na opremi ali v povezavi z njo. Za opremo se lahko samostojno ali v kombinaciji uporabljajo elektrika, plin, nafta, trdno gorivo, sončna toplotna energija itd.
OPOMBA: Beseda »oprema« v tem standardu vključuje »naprave« in »kontrolni sistem«. Ta standard se uporablja tudi za posamezne na tlak občutljive naprave, ki se uporabljajo kot del kontrolnega sistema, ali na tlak občutljive naprave, ki so mehansko integrirane v večfunkcijske naprave brez električnih izhodov.
Področje uporabe tega standarda zajema avtomatske električne, na tlak občutljive naprave za opremo za javno uporabo, kot je na primer oprema, namenjena za laično uporabo v trgovinah, lahki industriji in na kmetijah.
Ta standard se ne uporablja za na tlak občutljive naprave, namenjene izključno za industrijsko uporabo, razen če ni to izrecno navedeno v ustreznem standardu za opremo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60730-2-6:2016
01-april-2016
1DGRPHãþD
SIST EN 60730-2-6:2009
$YWRPDWVNHHOHNWULþQHNUPLOQHQDSUDYH]DXSRUDERYJRVSRGLQMVWYXLQ]DSRGREQR
XSRUDERGHO 3RVHEQH]DKWHYH]DDYWRPDWVNHHOHNWULþQHQDWODNREþXWOMLYH
QDSUDYHYNOMXþQR]PHKDQVNLPL]DKWHYDPL
Automatic electrical controls - Part 2-6: Particular requirements for automatic electrical
pressure sensing controls including mechanical requirements
Automatische elektrische Regel- und Steuergeräte für den Hausgebrauch und ähnliche
Anwendungen - Teil 2-6: Besondere Anforderungen an automatische elektrische
Druckregel- und Steuergeräte einschließlich mechanischer Anforderungen
Dispositifs de commande électrique automatiques à usage domestique et analogue -
Partie 2-6: Règles particulières pour les dispositifs de commande électrique
automatiques sensibles à la pression y compris les exigences mécaniques
Ta slovenski standard je istoveten z: EN 60730-2-6:2016
ICS:
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
SIST EN 60730-2-6:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60730-2-6:2016
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SIST EN 60730-2-6:2016
EUROPEAN STANDARD EN 60730-2-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 97.120 Supersedes EN 60730-2-6:2008
English Version
Automatic electrical controls - Part 2-6: Particular requirements
for automatic electrical pressure sensing controls including
mechanical requirements
(IEC 60730-2-6:2015)
Dispositifs de commande électrique automatiques - Automatische elektrische Regel- und Steuergeräte -
Partie 2-6: Exigences particulières pour les dispositifs de Teil 2-6: Besondere Anforderungen an automatische
commande électrique automatiques sensibles à la pression elektrische Druckregel- und Steuergeräte einschließlich
y compris les exigences mécaniques mechanischer Anforderungen
(IEC 60730-2-6:2015) (IEC 60730-2-6:2015)
This European Standard was approved by CENELEC on 2015-05-27. CENELEC 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-CENELEC
Management Centre or to any CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60730-2-6:2016 E
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SIST EN 60730-2-6:2016
EN 60730-2-6:2016 - 2 -
European foreword
The text of document 72/980/FDIS, future edition 3 of IEC 60730-2-6, prepared by IEC/TC 72
"Automatic electrical controls" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 60730-2-6:2016.
The following dates are fixed:
(dop) 2016-08-26
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-02-26
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 60730-2-6:2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment
Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC).
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive 2004/108/EC, see informative Annex ZZ, which is an integral
part of this document.
Endorsement notice
The text of the International Standard IEC 60730-2-6:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC 60079 NOTE Harmonized in EN 60079 series (modified).
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- 3 - EN 60730-2-6:2016
Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essential requirements as given in Article 1 of Annex I of the EU Directive EMC
(2004/108/EC).
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.
WARNING: Other requirements and other EU Directives may be applicable to the products falling
within the scope of this standard.
___________
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SIST EN 60730-2-6:2016
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SIST EN 60730-2-6:2016
IEC 60730-2-6
®
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-6: Particular requirements for automatic electrical pressure sensing
controls including mechanical requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-2587-5
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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SIST EN 60730-2-6:2016
– 2 – IEC 60730-2-6 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 8
3 General requirements . 9
4 General notes on tests . 10
5 Rating. 10
6 Classification . 10
7 Information . 11
8 Protection against electric shock . 11
9 Provision for protective earthing . 11
10 Terminals and terminations . 11
11 Constructional requirements . 12
12 Moisture and dust resistance . 14
13 Electric strength and insulation resistance . 14
14 Heating . 14
15 Manufacturing deviation and drift . 14
16 Environmental stress . 15
17 Endurance . 15
18 Mechanical strength . 16
19 Threaded parts and connections . 17
20 Creepage distances, clearances and distances through solid insulation . 17
21 Resistance to heat, fire and tracking . 17
22 Resistance to corrosion . 18
23 Electromagnetic compatibility (EMC) requirements – Emission . 18
24 Components . 18
25 Normal operation . 18
26 Electromagnetic compatibility (EMC) requirements – Immunity . 18
27 Abnormal operation . 18
28 Guidance on the use of electronic disconnection . 18
Annexes . 19
Annex H (normative) Requirements for electronic controls . 20
Annex AA (normative) Number of cycles . 27
AA.1 Number of cycles for independently mounted controls . 27
AA.2 Cycling rate for independently mounted controls . 27
Annex BB (informative) Stainless steel for bellows, bourdon tubes or similar elements . 28
Annex CC (informative) Deviation and drift requirements for pressure operating
controls . 31
Bibliography . 32
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IEC 60730-2-6 © IEC 2015 – 3 –
Table 1 (7.2 of edition 3) – Required information and methods of providing information . 11
Table H.101 – Compliance criteria . 22
Table BB.1 – Stainless steel for bellows, bourdon tubes or similar elements (1 of 3) . 28
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –
Part 2-6: Particular requirements for automatic electrical
pressure sensing controls including mechanical requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60730-2-6 has been prepared IEC technical committee 72:
Automatic electrical controls.
This third edition cancels and replaces the second edition published in 2007. This edition
constitutes a technical revision. This edition includes the following significant technical
changes with respect to the previous edition:
a) aligns the text with IEC 60730-1, Edition 5;
b) modifies requirements for Class B control function (H.27.1.2.2);
c) modifies requirements for Class C control function (H.27.1.2.3);
d) modifies requirements for faults during lock-out or safety- shut-down.
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IEC 60730-2-6 © IEC 2015 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
72/980/FDIS 72/992/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is intended to be used in conjunction with IEC 60730-1. It was established on the
basis of the fifth edition (2013) of that publication. Consideration may be given to future
editions of, or amendments to, IEC 60730-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60730-1 so as to
convert that publication into the IEC standard: Particular requirements for automatic electrical
pressure sensing controls including mechanical requirements.
Where this part 2 states "addition", "modification", or "replacement", the relevant requirement,
test specification or explanatory matter in part 1 should be adapted accordingly.
Where no change is necessary, this part 2 indicates that the relevant clause or subclause
applies.
In the development of a fully international standard, it has been necessary to take into
consideration the differing requirements resulting from practical experience in various parts of
the world and to recognize the variation in national electrical systems and wiring rules.
The “in some countries” notes regarding differing national practices are contained in the
following subclauses:
10.1.4
15.1.101
18.101
Annex CC
In this publication:
1) The following print types are used:
– Requirements proper: in roman type;
– Test specifications: in italic type;
– Notes; in small roman type;
– Words defined in Clause 2: bold.
2) Subclauses, notes, tables and figures which are additional to those in part 1 are numbered
starting from 101, additional annexes are lettered AA, BB, etc.
A list of all parts of the IEC 60730 series, published under the title Automatic electrical
controls can be found on the IEC website.
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The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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.
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IEC 60730-2-6 © IEC 2015 – 7 –
AUTOMATIC ELECTRICAL CONTROLS –
Part 2-6: Particular requirements for automatic electrical
pressure sensing controls including mechanical requirements
1 Scope and normative references
This clause of Part 1 is applicable except as follows:
1.1 Scope
Replacement:
This part of IEC 60730 applies to automatic electrical pressure sensing controls with a
minimum gauge pressure rating of –60 kPa and a maximum gauge pressure rating of
4,2 MPa, for use in, on or in association with, equipment. The equipment may use electricity,
gas, oil, solid fuel, solar thermal energy, etc. or a combination thereof.
NOTE Throughout this standard, the word “equipment” includes “appliances” and “control system”.
This standard is also applicable to individual pressure sensing controls utilized as part of a
control system or pressure sensing controls which are mechanically integral with multi-
functional controls having non-electrical outputs.
Automatic electrical pressure sensing controls for equipment used by the public, such as
equipment intended to be used by laymen in shops, in light industry and on farms, are within
the scope of this standard.
This standard does not apply to pressure sensing controls intended exclusively for industrial
process applications unless explicitly mentioned in the relevant equipment standard.
1.1.1 Replacement:
This standard applies to inherent safety, operating values, operating sequences where
such are associated with equipment protection, and to the testing of automatic electrical
pressure sensing controls used in, on or in association with equipment.
This standard is also applicable to the functional safety of low complexity safety related
pressure sensing controls and systems.
This standard is also applicable to pressure sensing controls for appliances within the scope
of IEC 60335-1.
See also Annex J.
1.1.2 Addition:
This standard applies to automatic electrical controls, mechanically or electrically operated,
responsive to or controlling a pressure or vacuum.
1.1.3 Not applicable.
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1.1.4 Replacement:
This standard applies to manual controls when such are electrically and/or mechanically
integral with pressure sensing controls.
NOTE Requirements for manual switches not forming part of an automatic control are contained in IEC 61058-1.
1.1.5
Replacement:
This standard applies to a.c. or d.c. powered pressure sensing controls with a rated voltage
not exceeding 690 V a.c. or 600 V d.c.
1.1.6
Replacement:
This standard does not take into account the response value of an automatic action of a
pressure sensing control, if such a response value is dependent upon the method of
mounting it 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 shall apply.
1.1.7
Replacement:
This standard applies also to pressure sensing controls incorporating electronic devices,
requirements for which are contained in Annex H.
This standard applies also to pressure sensing controls using NTC or PTC thermistors,
requirements for which are contained in Annex J.
Additional subclauses:
1.1.101 This standard contains requirements for electrical features of pressure sensing
controls and requirements for mechanical features that affect their intended operation.
NOTE Subclause 18.101, as it pertains to gas and/or oil controls, is under consideration pending review or
revision of ISO 22967, ISO 22968 and ISO 23550 series, if applicable.
1.1.102 In general, these pressure sensing controls are integrated or incorporated with the
equipment or are intended to be integrated in, or on the equipment. This standard also covers
these controls when they are independently mounted. In-line cord controls are not covered
by this standard.
2 Terms and definitions
This clause of Part 1 is applicable except as follows:
2.2 Definitions of types of control according to purpose
Additional definitions:
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IEC 60730-2-6 © IEC 2015 – 9 –
2.2.101
pressure limiter
pressure sensing control which is intended to keep a pressure below or above a
predetermined value during normal operating conditions and which may have provision for
setting by the user
Note 1 to entry: A pressure limiter may be of the automatic or of the manual reset type. It does not make the
reverse operation during the normal duty cycle of the equipment.
2.2.102
pressure operating control
pressure sensing control set at a high or low pressure, or both, between which limits the
equipment is normally intended to operate
2.2.103
pressure cut-out
pressure sensing control intended to keep a pressure below or above one particular value
during abnormal operating conditions of the equipment and which has no provisions for
setting by the user
Note 1 to entry: A pressure cut-out may be of the automatic or of the manual reset type.
A pressure cut-out will provide a Type 2 action.
A pressure cut-out may have an adjustable stop intended to be set by the control manufacturer, the equipment
manufacturer or the installer.
2.3 Definitions relating to the function of controls
Additional definitions:
2.3.101
pressure medium
medium used to transmit the pressure to the pressure sensing element
Note 1 to entry: Pressure medium as used in this standard refers to either gases or liquids.
2.3.102
differential pressure
difference in a pressure between any two points in a system, between two systems or
between a system and a reference pressure such as atmospheric pressure
Note 1 to entry: An example is the difference in static pressure between the upstream side of an orifice and the
downstream side.
2.8 Definitions relating to component parts of controls
Additional definition:
2.8.101
vent
that opening from the atmospheric side of a diaphragm to the atmosphere through which air is
discharged or drawn in when the control is functioning
3 General requirements
This clause of Part 1 is applicable.
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4 General notes on tests
This clause of Part 1 is applicable except as follows:
4.1 Conditions of test
4.1.7 Replacement:
The rates of pressure change declared in Table 1 requirement 37, and used in Clause 17 (i.e.
α β , α , β ) shall have test tolerances as declared by the manufacturer.
,
1 1 2 2
4.3 Instructions for test
4.3.1 According to submission
Additional subclause:
4.3.1.101 The values in Annex AA apply for the testing of independently mounted pressure
sensing controls in Clause 17. Values for integrated and incorporated controls are
specified in the appropriate equipment standard.
5 Rating
This clause of Part 1 is applicable.
6 Classification
This clause of Part 1 is applicable except as follows:
6.3.9 – sensing control;
Additional subclause:
6.3.9.101 – pressure sensing;
6.4.3
Additional subclause:
6.4.3.101 – for sensing actions, no increase in the operating value as a result of any
leakage from the sensing element or from parts connecting the sensing element to the
switch head (Type 2.N).
6.8.3 Replacement:
For an independently mounted control or a control integrated or incorporated in an
assembly utilizing a non-electrical energy source:
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7 Information
This clause of Part 1 is applicable except as follows:
7.2 Methods of providing information
Table 1 (7.2 of edition 3) – Required information and methods of providing information
Information Clause or Method
subclause
Modification:
Replace the following requirements by:
6 Purpose of control 2.2.101 to 2.2.103
4.3.5 D
6.3
26 Number of cycles of actuation (M) for each manual action 6.10, Annex AA X
27 Number of automatic cycles (A) for each automatic action
6.11, Annex AA X
34 Not applicable
44 Not applicable
48 Operating pressure (or pressures) 2.3.11, 15, 18 D
Additional requirements:
101 Pressure medium 2.3.101 X
102 Operating differential 2.3.26 D
103 Maximum working pressure 2.3.29 D
Addition to Note i:
For pressure sensing controls, limits of activating quantity are specified either in the applicable appliance
standard, by the appliance manufacturer or as declared by the pressure sensing control manufacturer (see
17.7 and 17.8).
8 Protection against electric shock
This clause of Part 1 is applicable.
9 Provision for protective earthing
This clause of Part 1 is applicable.
10 Terminals and terminations
This clause of Part 1 is applicable except as follows:
10.1 Terminals and terminations for external copper conductors
10.1.4 Addition:
NOTE In the USA, controls for operation above 50 V shall be provided with suitable wiring terminals or leads for
the connection of fixed wiring conductors having an ampere rating of no less than:
– 1,25 times the ampere rating of a fixed electric space-heating equipment load;
– 1,25 times the full-load motor current rating of a single motor;
– 1,25 times the combination load of a full-load motor current and 1,25 times a fixed electric space-heating
equipment load;
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SIST EN 60730-2-6:2016
– 12 – IEC 60730-2-6 © IEC 2015
– 1,25 times the full load current of the largest motor plus the full load amperes of the other loads;
– 1,0 times all other loads.
11 Constructional requirements
This clause of Part 1 is applicable except as follows:
11.4 Actions
Additional subclause:
11.4.101 Type 2.N action
A Type 2.N action shall be so designed that in the event of a leak in the sensing element, or
in any other part between the sensing element and the switch head, the declared
disconnection or interruption is provided before the sum of the declared operating pressure
and drift is exceeded.
Compliance is checked by the following test:
The operating pressure of a Type 2.N control shall be measured under the conditions of
Clause 15 of Part 1. If the control has means for setting, it shall be set to the highest value.
After this measurement, a hole is artificially produced in the sensing element and the
measurement of the operating pressure is repeated.
No positive drift is allowed beyond the declared value.
A separate shroud or sleeve may be employed for protection of the sensing element to
achieve conformance with Clause 18.
NOTE The test can be replaced by theoretical computations of the physical mode of operation.
11.11
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