HD 384.7.753 S1:2002

SLOVENSKI STANDARD
01-junij-2003
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Electrical installations of buildings -- Part 7: Requirements for special installations or
locations -- Section 753: Floor and ceiling heating systems
Elektrische Anlagen von Gebäuden -- Teil 7: Anforderungen für Betriebsstätten, Räume
und Anlagen besonderer Art - Hauptabschnitt 753: Fußboden- und Decken-
Flächenheizungen
Installations électriques des bâtiments -- Partie 7: Règles pour les installations et
emplacements spéciaux -- Section 753: Systèmes de chauffage par sol ou plafond
Ta slovenski standard je istoveten z: HD 384.7.753 S1:2002
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
97.100.10 (OHNWULþQLJUHOQLNL Electric heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 384.7.753 S1
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT October 2002

ICS 29.020;91.140.50
English version
Electrical installations of buildings
Part 7: Requirements for special installations or locations
Section 753: Floor and ceiling heating systems

Installations électriques des bâtiments Elektrische Anlagen von Gebäuden
Partie 7: Règles pour les installations Teil 7: Anforderungen für Betriebsstätten,
et emplacements spéciaux Räume und Anlagen besonderer Art -
Section 753: Systèmes de chauffage Hauptabschnitt 753: Fußboden- und
par sol ou plafond Decken-Flächenheizungen

This Harmonization Document was approved by CENELEC on 2002-05-01. CENELEC members are
bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.

Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat or to any CENELEC member.

This Harmonization Document exists in three official versions (English, French, German).

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. HD 384.7.753 S1:2002 E

Foreword
This Harmonization Document was prepared by SC 64B, Protection against thermal effects, of Technical
Committee CENELEC TC 64, Electrical installations of buildings.
The text of the draft was submitted to the formal vote and was approved by CENELEC as
HD 384.7.753 S1 on 2002-05-01.
The following dates were fixed:
– latest date by which the existence of the HD
has to be announced at national level (doa) 2002-11-01
– latest date by which the HD has to be implemented
at national level by publication of a harmonized
national standard or by endorsement (dop) 2003-05-01
– latest date by which the national standards conflicting
with the HD have to be withdrawn (dow) 2005-05-01
Annexes designated “normative” are part of the body of the standard.
In this standard, annexes A and ZA are normative.
__________
– 3 – HD 384.7.753 S1:2002
Introduction
The particular requirements of part 7 supplement, modify or supersede the general requirements of
the other parts of HD 384.
The numbers following the particular number of section 753 are those of the corresponding parts,
chapters or clauses of HD 384.
The absence of reference to parts, chapters or clauses means that the general requirements of
HD 384 are applicable.
753 Floor and ceiling heating systems
753.1 Scope, object, fundamental principals
753.1.1 Scope
This standard applies to the installation of electric floor and ceiling heating systems which are
erected as either thermal storage heating system or direct heating system. It does not apply to the
installation of wall heating systems.
NOTE  A ceiling located under the roof of a building down to a vertical height of 1,50 m measured from the finished floor
surface is also regarded as a ceiling within the meaning of this standard.
753.1.2 Normative references
NOTE  Normative references to international publications with their corresponding European publications are listed in annex ZA.
753.2 Definitions
For the purpose of this Harmonization Document, the following definitions apply:

753.2.1
thermal storage floor heating system
heating system in which, due to a limited charging period, a restricted availability of electrical
energy is converted into heat and dissipated mainly through the surface of the floor to the room, to
be heated with an intended time delay

753.2.2
direct heating system
as floor or ceiling heating system denotes a heating installation which generates heat from electrical
energy and dissipates it to the room to be heated, with a response time being as low as possible

753.2.3
complementary floor heating
direct heating system integrated into the floor construction e.g. in the border zones close to outer
walls which complements the heat dissipation of a thermal storage floor heating system

753.2.4
heating-free area
unheated floor or ceiling area which is completely covered when placing pieces of furniture or kept
free for built-in furniture
753.2.5
heating cable
cable, with or without a screen or metal sheath, for a fixed heating system

753.2.6
flexible sheet heating element
heating element consisting of sheets of electrical insulation laminated with electrical resistance
material, or a base material on which electrically insulated heating wires are fixed

753.2.7
heating unit
heating cable or flexible sheet heating element with rigidly fixed cold leads or terminal fittings which
are connected to the terminal of the electrical installation

753.2.8
cold lead
insulated cable or cord intended to connect the heating unit with the electrical installation

753.2.9
self limiting heating cable
cable to EN 50019 which cannot exceed 70 °C and which does not require cold leads for connection
to the electrical installation

753.4 Protection for safety
753.41 Protection against electric shock
753.412 Protection against direct contact
753.412.3 Protection by obstacles
Protection by obstacles is not applicable.
753.412.4 Protection by placing out of reach
Protection by placing out of reach is not applicable.
753.413 Protection against indirect contact
753.413.1 Protection by automatic disconnection of supply
As disconnection devices RCD with a rated residual operating current not exceeding 30 mA shall be
used.
753.413.1.6 Supplementary equipotential bonding
Where a conductive sheath or grid above the floor heating elements or under the ceiling heating
elements is provided, it shall be connected to the protective conductor of the electrical installation
by equipotential bonding conductors.
NOTE  In the case of heating units which are delivered from the manufacturer without exposed-conductive-part a
conductive sheath or grid may be provided as exposed-conductive-part above the floor heating elements or under the
ceiling heating elements.
753.413.2 Protection by using equipment of Class II construction or equivalent insulation
Circuits supplying heating equipment of class II construction or equivalent insulation shall have
additional protection by the use of RCD with a rated residual operating current not exceeding
30 mA.
...