IEC 62999:2016
(Main)Electric room heating - Underfloor heating - Performance characteristics - Definitions, method of testing, sizing and formula symbols
Electric room heating - Underfloor heating - Performance characteristics - Definitions, method of testing, sizing and formula symbols
IEC 62999:2016 applies to electrical underfloor heating of dwellings and all other buildings whose use corresponds to dwellings or is at least similar, having a maximum load bearing in use of 4 kN/m2. This Standard defines the main characteristics of electrical underfloor heating and establishes the method of testing of these characteristics as information for the user. This Standard does not deal with installation and safety requirements.
Chauffage électrique de locaux - Chauffage par le sol - Caractéristiques de performance - Définitions, méthode d'essai, calibrage et symboles de formule
L'IEC 62999:2016 s'applique aux systèmes de chauffage par le sol électrique pour locaux résidentiels et autres locaux, destinés à un usage résidentiel ou analogue, et dont la portance maximale en utilisation est de 4 kN/m2. La présente norme définit les principales caractéristiques des systèmes de chauffage par le sol électrique et fournit à l'utilisateur les méthodes d'essai correspondantes à titre informatif. La présente norme ne couvre pas les exigences en matière d'installation et de sécurité.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 62999 ®
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric room heating – Underfloor heating – Performance characteristics –
Definitions, method of testing, sizing and formula symbols
Chauffage électrique de locaux – Chauffage par le sol – Caractéristiques de
performance – Définitions, méthode d'essai, calibrage et symboles de formule
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
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
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 Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 15
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC 65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et
CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 62999 ®
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric room heating – Underfloor heating – Performance characteristics –
Definitions, method of testing, sizing and formula symbols
Chauffage électrique de locaux – Chauffage par le sol – Caractéristiques de
performance – Définitions, méthode d'essai, calibrage et symboles de formule
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.100.10 ISBN 978-2-8322-3213-2
– 2 – IEC 62999:2016 © IEC 2016
CONTENTS
FOREWORD .6
1 Scope .8
2 Normative references .8
3 Terms and definitions .8
4 Method of testing for the determination of characteristics of performance . 16
4.1 General . 16
4.2 Standard heating load per unit area . 16
4.3 Maximum power rating per unit area . 16
4.4 Maximum surface temperature . 17
4.5 Maximum floor surface temperature for underfloor storage heating . 18
4.6 Room air temperature . 19
4.7 Internal surface temperatures on the surrounding surfaces of the room . 20
4.8 Thermal pre-conditioning of the room to be tested . 20
4.9 Floor temperature in the case of continuous local hot spots . 21
4.10 Floor temperature of underfloor storage heating through failure of a
switching, controlling or regulation apparatus . 23
4.11 Floor temperature of controlled underfloor heating and underfloor direct
heating through failure of a switching, controlling or regulation apparatus . 23
4.12 Regulation of room temperature using peripheral areas for underfloor
storage heating . 23
4.13 Regulation of room temperature using controlled underfloor heating and
underfloor direct heating . 23
4.14 Regulation of room temperature using underfloor warming . 24
4.15 Relationship of coefficients of heat transfer . 24
4.16 Insulating layers . 24
4.17 Edging insulation strips . 25
4.18 Damp-proofing . 25
4.19 Electrical auxiliary heating . 26
4.20 Load distribution layer in electrical underfloor heating . 26
4.21 Bedding in or under heating screed or directly below floor covering . 26
4.22 Dry laying of electrical heating elements. 26
4.23 Heating element . 26
4.24 Heating cable and laminar heating element . 26
4.24.1 Heating cable for bedding in or under screeding or directly below floor
covering. 26
4.24.2 Heating cable for dry laying . 26
4.24.3 Laminar heating elements for installation below or in screeding . 27
4.25 Characteristics of heating cables . 27
4.26 Characteristics of laminar heating elements . 27
4.27 Cold tails . 27
4.28 Point of connection . 27
4.29 Bending radius of the heating cable . 27
4.30 Heating element labelling . 27
4.31 Pulsation factor . 27
4.32 Installation of heating elements for underfloor direct heating . 28
4.33 Adhesive and fixing material . 28
4.34 Permanent installation areas . 28
4.35 Pre-heating of screeding . 28
4.36 Floor coverings . 28
4.37 Control and regulation equipment . 28
4.38 Control and regulation equipment for underfloor storage heating . 28
4.39 Control and regulation equipment for controlled underfloor heating and
underfloor direct heating . 28
4.40 Floor temperature measurement . 29
4.41 Auxiliary supply period . 29
4.42 Period of room use . 29
4.43 Insulation and dielectric resistance of the heating element . 29
4.44 Instructions for construction workers . 29
4.44.1 Protective measures when pouring flooring screed . 29
4.44.2 Pouring the screed . 29
4.45 Data for owner and user of the building . 29
4.46 Report of testing . 30
Annex A (informative) Sizing procedure – Range of application and purpose . 31
A.1 General . 31
A.2 Basic principles – Basic parameters of the room to be heated . 31
A.2.1 General . 31
A.2.2 Standard heat load of an underfloor heated room . 31
A.2.3 Standard heating load per unit area . 31
A.2.4 Effective heat storage capacity of the room to be heated . 32
A.2.5 Peripheral conditions and limiting values . 32
A.3 Sizing an underfloor heating system . 33
A.3.1 Storage layer depth of an underfloor heating system .
...
IEC 62999 ®
Edition 1.1 2021-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric room heating – Underfloor heating – Performance characteristics –
Definitions, method of testing, sizing and formula symbols
Chauffage électrique de locaux – Chauffage par le sol – Caractéristiques de
performance – Définitions, méthode d'essai, calibrage et symboles de formule
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
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
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 IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 62999 ®
Edition 1.1 2021-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric room heating – Underfloor heating – Performance characteristics –
Definitions, method of testing, sizing and formula symbols
Chauffage électrique de locaux – Chauffage par le sol – Caractéristiques de
performance – Définitions, méthode d'essai, calibrage et symboles de formule
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.100.10 ISBN 978-2-8322-5465-3
IEC 62999 ®
Edition 1.1 2021-10
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electric room heating – Underfloor heating – Performance characteristics –
Definitions, method of testing, sizing and formula symbols
Chauffage électrique de locaux – Chauffage par le sol – Caractéristiques de
performance – Définitions, méthode d'essai, calibrage et symboles de formule
– 2 – IEC 62999:2016+AMD1:2021 CSV
© IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references. 8
3 Terms and definitions . 8
4 Method of testing for the determination of characteristics of performance . 15
4.1 General . 15
4.2 Standard heating load per unit area . 16
4.3 Maximum power rating per unit area . 16
4.4 Maximum surface temperature . 16
4.5 Maximum floor surface temperature for underfloor storage heating . 17
4.6 Room air temperature. 19
4.7 Internal surface temperatures on the surrounding surfaces of the room . 20
4.8 Thermal pre-conditioning of the room to be tested . 20
4.9 Floor temperature in the case of continuous local hot spots . 21
4.10 Floor temperature of underfloor storage heating through failure of a
switching, controlling or regulation apparatus . 23
4.11 Floor temperature of controlled underfloor heating and underfloor direct
heating through failure of a switching, controlling or regulation apparatus . 23
4.12 Regulation of room temperature using peripheral areas for underfloor
storage heating . 23
4.13 Regulation of room temperature using controlled underfloor heating and
underfloor direct heating . 23
4.14 Regulation of room temperature using underfloor warming . 24
4.15 Relationship of coefficients of heat transfer . 24
4.16 Insulating layers . 24
4.17 Edging insulation strips . 25
4.18 Damp-proofing . 25
4.19 Electrical auxiliary heating . 26
4.20 Load distribution layer in electrical underfloor heating . 26
4.21 Bedding in or under heating screed or directly below floor covering . 26
4.22 Dry laying of electrical heating elements . 26
4.23 Heating element . 26
4.24 Heating cable and laminar heating element . 26
4.24.1 Heating cable for bedding in or under screeding or directly below floor
covering . 26
4.24.2 Heating cable for dry laying . 26
4.24.3 Laminar heating elements for installation below or in screeding . 26
4.25 Characteristics of heating cables . 27
4.26 Characteristics of laminar heating elements . 27
4.27 Cold tails . 27
4.28 Point of connection . 27
4.29 Bending radius of the heating cable . 27
4.30 Heating element labelling . 27
4.31 Pulsation factor . 27
4.32 Installation of heating elements for underfloor direct heating . 27
4.33 Adhesive and fixing material . 28
4.34 Permanent installation areas . 28
© IEC 2021
4.35 Pre-heating of screeding . 28
4.36 Floor coverings . 28
4.37 Control and regulation equipment . 28
4.38 Control and regulation equipment for underfloor storage heating . 28
4.39 Control and regulation equipment for controlled underfloor heating and
underfloor direct heating . 28
4.40 Floor temperature measurement . 28
4.41 Auxiliary supply period . 29
4.42 Period of room use . 29
4.43 Insulation and dielectric resistance of the heating element . 29
4.44 Instructions for construction workers . 29
4.44.1 Protective measures when pouring flooring screed . 29
4.44.2 Pouring the screed . 29
4.45 Data for owner and user of the building . 29
4.46 Report of testing . 30
Annex A (informative) Sizing procedure – Range of application and purpose . 31
A.1 General . 31
A.2 Basic principles – Basic parameters of the room to be heated . 31
A.2.1 General . 31
A.2.2 Standard heat load of an underfloor heated room . 31
A.2.3 Standard heating load per unit area . 31
A.2.4 Effective heat storage capacity of the room to be heated . 32
A.2.5 Peripheral conditions and limiting values . 32
A.3 Sizing an underfloor heating system . 33
A.3.1 Storage layer depth of an underfloor heating system . 33
A.3.2 Heat load coverage for the underfloor heated room . 33
Annex B (informative) Sizing procedure – Examples o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.