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STANDARD 11855-8
First edition
2023-12
Building environment design —
Design, dimensioning, installation and
control of embedded radiant heating
and cooling systems —
Part 8:
Electrical heating systems
Conception de l'environnement des bâtiments — Conception,
dimensionnement, installation et contrôle des systèmes intégrés de
chauffage et de refroidissement par rayonnement —
Partie 8: Systèmes de chauffage électrique
Reference number
ISO 11855-8:2023(E)
© ISO 2023
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ISO 11855-8:2023(E)
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© ISO 2023
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Published in Switzerland
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© ISO 2023 – All rights reserved
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ISO 11855-8:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and subscripts . 2
4.1 Symbols . 2
4.2 Subscripts . . 2
5 Calculation procedure of the heat flux . 3
Annex A (informative) Calculation procedure for electrical heating systems .8
Bibliography . 9
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© ISO 2023 – All rights reserved
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ISO 11855-8:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validit
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