EN 1366-6:2004

SLOVENSKI STANDARD
01-maj-2005
Preskusi požarne odpornosti servisnih inštalacij – 6. del: Dvignjeni dostopni podi
in votli podi
Fire resistance tests for service installations - Part 6: Raised access and hollow core
floors
Feuerwiderstandsprüfungen für Installationen - Teil 6: Doppel- und Hohlböden
Sécurité contre l'incendie - Essais de résistance au feu des installations de service -
Partie 6 : Planchers surélevés et planchers creux
Ta slovenski standard je istoveten z: EN 1366-6:2004
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.30 Stropi. Tla. Stopnice Ceilings. Floors. Stairs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1366-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 13.220.50
English version
Fire resistance tests for service installations - Part 6: Raised
access and hollow core floors
Sécurité contre l'incendie - Essais de résistance au feu des Feuerwiderstandsprüfungen für Installationen - Teil 6:
installations de service - Partie 6 : Planchers surélevés et Doppel- und Hohlböden
planchers creux
This European Standard was approved by CEN on 9 July 2004.
CEN 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 Central Secretariat or to any CEN 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 CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1366-6:2004: E
worldwide for CEN national Members.

Contents
page
Foreword.4
Introduction .5
1 Scope.6
2 Normative references.6
3 Terms and definitions.6
4 Test equipment.7
5 Test conditions.7
5.1 Furnace temperature.7
5.2 Furnace pressure.7
5.3 Loading conditions.8
6 Test specimen.8
6.1 Size.8
6.2 Number.8
6.3 Design.9
6.4 Construction.10
6.5 Verification.10
7 Installation of the test specimen .10
8 Conditioning.10
9 Application of instrumentation.10
9.1 Thermocouples.10
9.2 Pressure.11
9.3 Deflection.11
10 Test procedure.11
10.1 General.11
10.2 Application and control of load .11
10.3 Furnace control.11
10.4 Observations during the test .11
10.5 Termination of test.11
11 Performance criteria.12
11.1 Loadbearing capacity.12
11.2 Other criteria.12
12 Test report.12
13 Direct application of the test results.12
13.1 General.12
13.2 Size of raised or hollow floor.12
13.3 Boundary/restraint conditions.12
13.4 Panels.12
13.5 Pedestals.13
13.6 Fixing of pedestals to sub-floor (raised floors only).13
13.7 Fittings.13
13.8 Cut panels (raised floors only) .13
13.9 Plenum.13
13.10 Loading.13
13.11 Temperature/time curve.13
Annex A (informative)  Guidance on the provision of support for raised or hollow floors
inside the furnace .14
A.1 Introduction.14
A.2 Method of support using pillars .14
A.3 Method of support fire protected steel beams.15

Foreword
This document (EN 1366-6:2004) has been prepared by Technical Committee CEN/TC 127 “Fire
safety in buildings”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2005, and conflicting national standards shall be
withdrawn at the latest by May 2005.
This European Standard has been prepared under a Mandate given to CEN by the European and the
European Free Trade Association, and supports essential requirements of the Construction Products
Directive.
EN 1366 ‘Fire resistance tests for service installations’ consists of the following:
Part 1: Ducts,
Part 2: Fire dampers,
Part 3: Penetration seals,
Part 4: Linear joint seals,
Part 5: Service ducts and shafts,
Part 6: Raised access and hollow core floors,
Part 7: Conveyor systems and their closures,
Part 8: Smoke extraction ducts ,
Part 9: Single compartment smoke extraction ducts ,
Part 10: Smoke control dampers,
Part 11: Fire protective systems for essential services .
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia,
Spain, Sweden, Switzerland and United Kingdom.

Introduction
In this standard a representative sample of a raised or hollow floor is exposed to a specified regime of
heating and loading. The performance of the test specimen is monitored on the basis of criteria
described in EN 1363-1. The fire resistance of the tested construction is expressed as the time for
which the appropriate criteria have been satisfied.
Caution
The attention of all persons concerned with managing and carrying out this fire resistance test,
EN 1366-6, is drawn to the fact that fire testing can be hazardous and that there is a possibility that
toxic and/or harmful smoke and gases can be evolved during the test. Mechanical and operation
hazards can also arise during the construction of the test elements or structures, their testing and
disposal of test residues.
An assessment of all potential hazards and risks to health should be made and safety precautions
should be identified and provided. Written safety instructions should be issued. Appropriate training
should be given to relevant personnel. Laboratory personnel should ensure that they follow written
safety instructions at all times.
1 Scope
This Part of EN 1366 specifies a method for determining the fire resistance of raised access floors
and hollow floors when subjected to a fire from within the plenum beneath the floor. The fire exposure
applied to the test specimen may be either:
a) standard time temperature curve;
b) ‘reduced’ time temperature curve which follows the standard time/temperature curve only up to
500 °C. After this temperature has been reached the temperature within the furnace is
maintained at 500 °C.
This document does not determine the fire resistance of the sub-floor on which the raised or hollow
floor is constructed; this is given in EN 1365-2.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 1363-1:1999, Fire resistance tests — Part 1: General requirements.
EN 12825:2001, Raised access floors.
EN 13213:2001, Hollow floors.
EN ISO 13943:2000, Fire safety — Vocabulary (ISO 13943:2000).
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1363-1:1999, EN
12825:2001, EN 13213:2001 and EN ISO 13943:2000 and the following apply.
3.1
raised access floor
factory made flooring system comprising panels supported on an under-structure of pedestals and/or
stringers or other components as applicable, providing a load bearing structure for the fitting out of a
building (EN 12825)
NOTE The under-structure is part of the raised access floor.
3.2
stringer
horizontal component connecting pedestals that may support a panel
3.3
hollow floor
loadbearing layer supported by a special understructure (which may include pedestals) in order to
provide a space between the loadbearing layer and the base floor for installation of e.g.
telecommunication services, electrical supplies, heating or air conditioning
3.4
sub-floor
horizontal element of building construction which is loadbearing and separating (constructional floor)
...