Fire resistance tests for service installations - Part 11: Fire protective systems for cable systems and associated components

This European Standard describes the method to evaluate the performance of protective systems for electrical cable and busbar systems in order to maintain the circuit integrity under fire conditions to classify the protective system according to EN 13501 3 for the P classification. The test examines the behaviour of cable protection systems exposed to fire from outside. The tests specified in this standard are not aimed for assessing the performance of the fire protective system and the penetration seal for maintaining the requirements of the penetrated wall or ceiling (classification E / I).
This method is very different to EN 50200 for the PH classification and also to IEC 60331 11, IEC 60331 21, IEC 60331 23, and IEC 60331 25, which are not designed for fire protective systems for electrical cable systems.
This standard should be used in conjunction with EN 1363 1.
The test results apply to fire protective systems for electrical cable systems rated for voltages up to 1 kV.
The test procedure should also be used to determine the performance of protective systems for use with data and optical cables, however, verification procedures for such cables are still under development. Proposals are given in Annex C.
The protective system may include ventilation devices, inspection hatches, fixed or removable lids etc.
The tests specified in this standard are not aimed for assessing the performance of sprayed or painted coatings (e.g. intumescent or ablative coating, plastic film, epoxy resin) and similar protective layers (e.g. wrap, bandage) applied directly on the cables or bus bars as fire protective system. Also, cables and bus bars with intrinsic resistance to fire, and without fire protective systems around, are excluded (see CENELEC standard EN 50577).
This test method is not applicable for cabinets for electrical accessory containing bus systems, relays or similar.
Dieses Prüfverfahren gilt nicht für Schaltschränke für elektrische Zubehörteile wie Bussysteme, Relais u. ä.

Feuerwiderstandsprüfungen für Installationen - Teil 11: Brandschutzsysteme für Kabelanlagen und zugehörige Komponenten

Diese Europäische Norm legt das Verfahren zur Bewertung der Leistung von Brandschutzsystemen für elektrische Kabelanlagen und Stromschienen hinsichtlich des Erhalts der Stromkreisintegrität (Funktionserhalt) bei einer Brandbeanspruchung mit dem Ziel fest, dem Brandschutzsystem die Klassifizierung P nach EN 13501 3 zu verleihen. Die Prüfung untersucht das Verhalten der Brandschutzsysteme für Kabelanlagen bei einer Brandbeanspruchung von außen. Die in dieser Norm festgelegten Prüfungen zielen nicht darauf ab, die Leistung des Brandschutzsystems und der Abschottung in Hinblick auf die Erfüllung der Anforderungen an die Wand oder Decke mit Durchführung (Klassifizierung E/I) zu beurteilen.
Dieses Prüfverfahren unterscheidet sich grundsätzlich von den in EN 50200 für die Klassifizierung PH sowie in IEC 60331 11, IEC 60331 21, IEC 60331 23 und IEC 60331 25 beschriebenen Verfahren, die nicht für Brandschutzsysteme für elektrische Kabelanlagen ausgelegt sind.
Diese Norm sollte in Verbindung mit EN 1363 1 angewendet werden.
Die Prüfergebnisse gelten für Brandschutzsysteme für elektrische Kabelanlagen mit einer Nenn¬spannung bis 1 kV.
Dieses Prüfverfahren sollte auch angewendet werden, um die Leistung von Brandschutzsystemen zur Anwendung mit Daten- und Lichtwellenleiterkabeln zu ermitteln. Die Beurteilungsverfahren für solche Kabel sind jedoch noch in Erarbeitung. Vorschläge werden in Anhang C aufgeführt.
Das Brandschutzsystem darf Lüftungsvorrichtungen, Revisionskappen, fest installierte oder abnehmbare Verschlussdeckel usw. enthalten.
Die in dieser Norm festgelegten Prüfungen dienen nicht der Beurteilung der Leistungsfähigkeit von durch Aufspritzen oder Aufstreichen aufgebrachten Beschichtungen (z. B. dämmschichtbildende oder wärmeab-sorbierende Beschichtungen, Kunststoffbeschichtungen, Epoxidharze) oder vergleichbaren Schutzschichten (z. B. Umwicklung, Bandage), die direkt auf den Kabeln bzw. Sammelschienen als Brandschutzsystem angewendet werden. Kabel und Sammelschienen mit einem inhärenten Feuerwiderstand sowie ohne umgebende Brandschutzsysteme sind ebenfalls ausgenommen (siehe CENELEC-Norm EN 50577).
Dieses Prüfverfahren gilt nicht für Schaltschränke für elektrische Zubehörteile wie Bussysteme, Relais u. ä.

Essais de résistance au feu des installations de service - Partie 11: Systèmes de protection incendie pour les systèmes de câbles et composants associés

La présente Norme européenne décrit la méthode permettant d’évaluer la performance des systèmes de protection des systèmes de câbles électriques et de bus bars afin que ces derniers maintiennent leur fonctionnalité électrique en cas d’incendie, dans le but de classifier le système de protection conformément à l’EN 13501-3 pour la classification P. L’essai étudie le comportement des systèmes de protection des câbles exposés au feu depuis l’extérieur. Les essais spécifiés dans la présente norme n’ont pas pour objet d’évaluer la performance au feu du système de protection incendie et du calfeutrement en ce qui concerne le respect des exigences concernant la paroi ou le plafond traversé (classification E / I).
Cette méthode est très différente de celles décrites dans l’EN 50200 pour la classification PH et dans l’IEC 60331-11, l’IEC 60331-21, l’IEC 60331-23 et l’IEC 60331-25, celles-ci n’étant pas prévues pour les systèmes de protection incendie des systèmes de câbles électriques.
Il convient d’utiliser la présente norme conjointement avec l’EN 1363-1.
Les résultats d’essai s’appliquent aux systèmes de protection incendie des systèmes de câbles électriques de tensions nominales allant jusqu’à 1 kV.
Il convient également d’utiliser ce mode opératoire d’essai pour déterminer la performance des systèmes de protection utilisés avec des câbles de données et des câbles à fibre optique. Toutefois, les modes opératoires de vérification de ces câbles sont encore en cours de développement. Des propositions sont faites dans l’Annexe C.
Le système de protection peut inclure des dispositifs de ventilation, des trappes de visite, des capots fixes ou amovibles, etc.
Les essais spécifiés dans la présente norme n’ont pas pour objet d’évaluer la performance des revêtements projetés ou peints (par exemple revêtements intumescents ou ablatifs, film plastique, résine époxy) et des couches de protection similaires (par exemple enrubannages, bandages) appliqués directement sur les câbles ou les bus bars en tant que système de protection incendie. En outre, les câbles et les bus bars présentant une résistance au feu intrinsèque et qui ne sont pas entourés de systèmes de protection incendie sont exclus (voir la norme EN 50577 du CENELEC).
La présente méthode d’essai n’est pas applicable aux armoires d’accessoires électriques contenant des systèmes de bus, des relais ou d’autres systèmes similaires.

Preskusi požarne odpornosti servisnih inštalacij - 11. del: Požarni zaščitni sistem za kabelske sisteme in pripadajoče dele

Ta del standarda EN 1366 opisuje metodo ocenjevanja učinkovitosti zaščitnih sistemov pri sistemih električnih kablov za namene vzdrževanja neprekinjenosti tokokroga v požarnih razmerah za razvrščanje zaščitnega sistema v skladu s standardom EN 13501-3 za razvrščanje P. Preskus preučuje vedenje sistemov za zaščito kablov, ki so ognju izpostavljeni z zunanje strani. Preskusi, ki jih določa ta standard, niso namenjeni ocenjevanju učinkovitosti požarnega zaščitnega sistema in tesnjenja prebojev za ohranjanje zahtev za steno ali strop pri širjenju požara (klasifikacija E/I).

General Information

Status
Published
Publication Date
08-May-2018
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
09-May-2018
Completion Date
09-May-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Feuerwiderstandsprüfungen für Installationen - Teil 11: Brandschutzsysteme für Kabelanlagen und zugehörige KomponentenEssais de résistance au feu des installations de service - Partie 11: Systèmes de protection incendie pour les systèmes de câbles et composants associésFire resistance tests for service installations - Part 11: Fire protective systems for cable systems and associated components91.140.50Sistemi za oskrbo z elektrikoElectricity supply systems29.060.20KabliCables13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 1366-11:2018SIST EN 1366-11:2018en,fr,de01-julij-2018SIST EN 1366-11:2018SLOVENSKI

STANDARD
SIST EN 1366-11:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1366-11
May
t r s z ICS
s uä t t rä w râ
t {ä r x rä t râ
{ sä s v rä w r English Version
Fire resistance tests for service installations æ Part

s sã Fire protective systems for cable systems and associated components Essais de résistance au feu des installations de service æPartie

s sã Systèmes de protection incendie pour les systèmes de câbles et composants associés

Feuerwiderstandsprüfungen für Installationen æ Teil

s sã Brandschutzsysteme für Kabelanlagen und zugehörige Komponenten This European Standard was approved by CEN on

{ April
t r s yä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels

t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s u x xæ s sã t r s z ESIST EN 1366-11:2018

EN 1366-11:2018 (E) 2 Contents Page European foreword ..........................................................................................................................................4 Introduction .......................................................................................................................................................5 1 Scope .......................................................................................................................................................6 2 Normative references .......................................................................................................................6 3 Terms and definitions ......................................................................................................................7 4 Test equipment ...................................................................................................................................9 4.1 Furnace ..................................................................................................................................................9 5 Test conditions ....................................................................................................................................9 5.1 Heating conditions .............................................................................................................................9 5.2 Pressure conditions...........................................................................................................................9 6 Test specimen ......................................................................................................................................9 6.1 Dimensions ...........................................................................................................................................9 6.2 Number of tests ...................................................................................................................................9 6.3 Design .....................................................................................................................................................9 7 Installation of test specimen ....................................................................................................... 10 7.1 Fire protective system with cables ........................................................................................... 10 7.2 Fire protective systems with busbars ...................................................................................... 11 7.3 Special cases ...................................................................................................................................... 11 8 Conditioning ...................................................................................................................................... 12 9 Application of instrumentation ................................................................................................. 12 9.1 Furnace thermocouples (plate thermocouples) .................................................................. 12 9.2 Preheating inside the fire protective system ........................................................................ 13 9.3 Additional thermocouples ........................................................................................................... 13 10 Test procedure ................................................................................................................................. 13 10.1 General ................................................................................................................................................ 13 10.2 Power supply .................................................................................................................................... 13 10.2.1 General ................................................................................................................................................ 13 10.2.2 Continuity and short circuit checking arrangement for power cables ........................ 14 10.2.3 Continuity and short circuit checking arrangement for signal/control cables ........ 14 10.2.4 Continuity and short circuit checking arrangement for busbars .................................. 15 11 Performance criteria ..................................................................................................................... 15 12 Test report ......................................................................................................................................... 16 13 Field of direct application of test results ................................................................................ 16 13.1 Types of cables ................................................................................................................................. 16 13.2 Application of test results of four-sided, three sided or two-sided fire protective systems................................................................................................................................................ 17 13.3 Assembly of fire protective system ........................................................................................... 18 13.4 Fixing of fire protective system to wall and ceiling ............................................................ 19 13.5 Types of cable management systems / busbars and load inside the fire protective system.................................................................................................................................................. 20 SIST EN 1366-11:2018

EN 1366-11:2018 (E) 3 13.6 Types of suspension device ......................................................................................................... 20 13.7 Adjoining construction .................................................................................................................. 21 13.8 Dimension of fire protective systems ...................................................................................... 22 13.9 Orientation of fire protective systems for cables and busbars ...................................... 22 13.10 Special cases ...................................................................................................................................... 22 13.10.1 Ventilation devices and inspection hatches .................................................................. 22 13.10.2 Removable lid ........................................................................................................................... 22 13.10.3 Penetrating systems .............................................................................................................. 22 Annex A (informative)

Thermocouples inside the fire protective systems ............................ 29 Annex B (informative)

Preheating ......................................................................................................... 30 Annex C (informative)

Performance criteria for communication/data cables...................... 31 Bibliography .................................................................................................................................................... 32

SIST EN 1366-11:2018

EN 1366-11:2018 (E) 4 European foreword This document (EN 1366-11:2018) 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 November 2018, and conflicting national standards shall be withdrawn at the latest by November 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. The EN 1366 series, 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 floors and hollow floors Part 7: Closures for conveyors and trackbound transportation systems Part 8: Smoke extraction ducts Part 9: Single compartment smoke extraction ducts Part 10: Smoke control dampers Part 11: Fire protective systems for cable systems and associated components According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 1366-11:2018

EN 1366-11:2018 (E) 5 Introduction The purpose of this test is to evaluate the ability of the protective system to allow cables and components of their installation (connectors, glands, junctions, mountings, etc.) to maintain during a defined time a reliable function whilst exposed to fire. The purpose of this test is to verify compliance with requirements regarding the circuit integrity of systems for example as those for firefighting lifts, pressure boosters, emergency lighting, fire alarm systems etc. The fire exposure conditions and general arrangement in this European Standard are similar to those given in EN 50577, developed by CLC/TC 20, and prCLC/TR 50658 under development by CLC/TC 213. Each of these standards has been developed under a Mode 4 co-operation between CEN TC 127, CLC/TC 213 and CLC/TC 20. CAUTION: The attention of all persons concerned with managing and carrying out this fire resistance test is drawn to the fact that fire testing may be hazardous and that there is a possibility that toxic and/or harmful smoke and gases may be evolved during the test. Mechanical and operational hazards may 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. SIST EN 1366-11:2018

EN 1366-11:2018 (E) 6 1 Scope This European Standard describes the method to evaluate the performance of protective systems for electrical cable and busbar systems in order to maintain the circuit integrity under fire conditions to classify the protective system according to EN 13501-3 for the P classification. The test examines the behaviour of cable protection systems exposed to fire from outside. The tests specified in this standard are not aimed for assessing the performance of the fire protective system and the penetration seal for maintaining the requirements of the penetrated wall or ceiling (classification E / I). This method is very different to EN 50200 for the PH classification and also to IEC 60331-11, IEC 60331-21, IEC 60331-23, and IEC 60331-25, which are not designed for fire protective systems for electrical cable systems. This standard should be used in conjunction with EN 1363-1. The test results apply to fire protective systems for electrical cable systems rated for voltages up to 1 kV. The test procedure should also be used to determine the performance of protective systems for use with data and optical cables, however, verification procedures for such cables are still under development. Proposals are given in Annex C. The protective system may include ventilation devices, inspection hatches, fixed or removable lids etc. The tests specified in this standard are not aimed for assessing the performance of sprayed or painted coatings (e.g. intumescent or ablative coating, plastic film, epoxy resin) and similar protective layers (e.g. wrap, bandage) applied directly on the cables or bus bars as fire protective system. Also, cables and bus bars with intrinsic resistance to fire, and without fire protective systems around, are excluded (see CENELEC standard EN 50577). This test method is not applicable for cabinets for electrical accessory containing bus systems, relays or similar. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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, Fire resistance tests - Part 1: General Requirements EN 1363-2, Fire resistance tests - Part 2: Alternative and additional procedures EN 13501-3, Fire classification of construction products and building elements - Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: fire resisting ducts and fire dampers EN 50288-7, Multi-element metallic cables used in analogue and digital communication and control - Part 7: Sectional specification for instrumentation and control cables EN 50525-2-11, Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (Uo/U) - Part 2-11: Cables for general applications - Flexible cables with thermoplastic PVC insulation SIST EN 1366-11:2018

EN 1366-11:2018 (E) 7 EN 60269-1, Low-voltage fuses - Part 1: General requirements (IEC 60269-1) EN 61537, Cable management - Cable tray systems and cable ladder systems (IEC 61537) EN ISO 13943, Fire safety - Vocabulary (ISO 13943) HD 603 S1, Distribution cables of rated voltage 0,6/1 kV 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1363-1, EN ISO 13943, and the following, apply. 3.1 fire protective system heat-insulating assembly of flexible or rigid materials inside which cables or cable management systems or busbars are arranged Note 1 to entry: The protective system may be ducts, shafts, conduits, trunkings, or similar systems. 3.2 duct horizontal self-supporting enclosure made of rigid boards or slabs for combustible or non-combustible cables or busbars with or without suspension device Note 1 to entry: Jacket enclosures are included. 3.3 range of ducts ducts with different cross sectional area and with the same thickness of the protective system for a given fire rating 3.4 shaft vertical self-supporting enclosure made of rigid boards or slabs for combustible or non-combustible cables or busbars with or without suspension device Note 1 to entry: Jacket enclosures are included. 3.5 suspension device mechanical support provided in the form of clips, ties, hangers, ladder racks or trays, or any device designed to carry the load of the cables and the protective system 3.6 conductor part of a cable which has the specific function of carrying current 3.7 busbar low-impedance conductor to which several electric circuits can be connected at separate points SIST EN 1366-11:2018

EN 1366-11:2018 (E) 8 3.8 busbar trunking system factory-built assembly in the form of a conductor system comprising busbars which are spaced and supported by insulating material in a duct, trough or similar enclosure 3.9 connecting element element such as sleeves and junction boxes 3.10 cable management system assembly including different system components intended for the accommodation of insulated conductors, cables and possibly other electrical equipment in electrical and / or communication systems Note 1 to entry: Examples of cable management system are conduit system, cable ductory system, cable trunking system, cable tray system, cable ladder system, cable cleat, cable tie. 3.11 maintenance of circuit integrity maintenance, the purpose of which is to maintain circuit integrity if there is no short circuit or circuit interruption in the cable system when exposed to fire from outside 3.12 circuit integrity ability of an electric cable to continue to operate in a designated manner whilst subjected to a specific source of heat for a specified period of time under specific conditions 3.13 power cable cable of voltages up to 0,6/1 kV comprising one or more insulated conductor(s), together with any coverings and protective layers, used for the transmission or supply of electrical energy 3.14 signal cable control cable cable comprising insulated conductor(s), together with any coverings and protective layers, used for the transmission of control, measuring and indication signals in electric installations 3.15 communication cable data cable cable of suitably insulated coaxial conductors or twisted pairs of insulated conductors fabricated to meet transmission, mechanical and environmental requirement, and sufficient to allow conveyance of information between two points with the minimum of radiation 3.16 optical fibre cable cable comprising one or more optical fibres or fibre bundles inside a common covering designed to protect them against mechanical stresses and other environmental influences while retaining the transmission quality of the fibres SIST EN 1366-11:2018

EN 1366-11:2018 (E) 9 3.17 supporting construction wall, partition or floor which the duct/shaft passes through in the test 4 Test equipment 4.1 Furnace The test shall be carried out using the equipment and procedures in accordance with EN 1363-1, and if appropriate EN 1363-2, modified if necessary as described in this standard. The furnace shall be at least width x length = 2 000 mm x 3 000 mm in size (internal dimensions). 5 Test conditions 5.1 Heating conditions The heating conditions and the furnace atmosphere shall conform to those given in EN 1363-1. 5.2 Pressure conditions The furnace pressure shall be controlled to a minimum of 20 Pa throughout the test at the top of the uppermost fire protective systems. Fire protective systems shall only be in the zone where the positive pressure exceeds 10 Pa (a minimum pressure of 10 Pa shall be maintained at the lowest point of the lowest fire protective system). 6 Test specimen 6.1 Dimensions The specimen shall be installed horizontally in the furnace for the test. The exposed length of the fire protective system shall be at least 3 000 mm, but shall not be shorter than 2 × span of the suspension device + minimum of 250 mm at each end. 6.2 Number of tests Fire protective systems shall be tested with the maximum and minimum dimensions (width and height or diameter) for each range, specified by the sponsor. Any size of the fire protective system may be tested as required by the sponsor. 6.3 Design 6.3.1 Outside the furnace, the fire protective system shall be closed by inserting an appropriate mineral wool plate into the end of the fire protective system, fixed in place with an appropriate adhesive (e.g. sodium silicate adhesive) or by fixing boards of the same material as for the fire protective system. 6.3.2 The test configuration shall include at least one joint inside the furnace. If such a joint is intended in practice to be independent from the suspension device the joint shall be located at approximately mid-span between two suspension devices. SIST EN 1366-11:2018

EN 1366-11:2018 (E) 10 7 Installation of test specimen 7.1 Fire protective system with cables 7.1.1 The fire protective system (e.g. duct) shall pass straight through the furnace. The length outside the furnace shall not exceed 200 mm. Between furnace wall and fire protective system, there shall be a minimum gap of 4 cm which shall be closed by mineral wool. The fire protective system shall not be fixed to the furnace walls at the penetration of the fire protective system through the walls. The fire protective system shall be suspended on devices attached to the ceiling or wall of the furnace as shown in Figure 1; the spacing of devices shall be specified by the sponsor (see Clause 13). The suspension devices shall be welded or screwed. Other kinds of fixings are not allowed. Three-sided and two-sided fire protective systems may also be fixed to the wall/ceiling or be suspended by devices attached to the wall/ceiling (see Figure 1). The suspension devices shall be made of steel and be sized such that the calculated stresses do not exceed the values given in the Table 3 in 13.6. 7.1.2 Fire protective systems shall be exposed to fire on all four sides (configuration a) or h) in Figure 1). The distance between 2 adjacent fire protective systems, and the distance between the top of the horizontal four-sided fire protective system and the furnace ceiling, shall be at least 500 mm. Similarly, there shall be a clearance of at least 500 mm between the sides of the fire protective system and the furnace walls. To cover the field of direct application (see Clause 13) the fire protective system shall additionally be tested to fire exposure on three sides if requested by the sponsor. The distance between fire protective systems, and the distance between the top of the horizontal three sided (see Figure 1e)) fire protective system and the furnace ceiling, shall be at least 500 mm. The minimum distance from the burner to the lowest part of the fire protective system shall be 500 mm (see Figure 4). 7.1.3 Depending on the desired field of application / cable types there are four possibilities for the test configuration Configuration 1: To represent all types of power cables (rated voltage 300/500 V) for an operating voltage up to 230/400 V (three-phase AC) and signal/control cables for an operating voltage up to 110 V (AC), the following cable types shall be laid in the fire protective system: — 2 power cables of type H05VV-F (with PVC insulation and PVC sheath), dimension 4 or 5 × 1,5 mm2, according to EN 50525-2-11 — 1 power cable of type H05VV-F (with PVC insulation and PVC sheath), dimension 4 or 5 × 16 mm2, according to EN 50525-2-11, — 2 signal-/control cables with PVC insulation for 70°C (one screened and unscreened), dimensions 2 × 2 × 0,8 mm or 1 × 4 × 0,8 mm according to EN 50288-7. Configuration 2: To represent all types of power cables (rated voltage 450/750 V up to 0,6/1 kV) for an operating voltage up to 400/690 V (Three-phase AC) and signal/control cables for an operating voltage up to 110 V (AC), the following cable types shall be laid in the fire protective system: — 2 power cable with PVC insulation 70°C of type E-YY-J or NYY-J or identical according to HD 603 S1, dimension 4 or 5 × 1,5 mm2 (with PVC insulation and PVC sheath); SIST EN 1366-11:2018

EN 1366-11:2018 (E) 11 — 1 power cable with PVC insulation 70°C of type E-YY-J or NYY-J or identical acc. HD 603 S1, dimension 4 or 5 × 16 mm2 (with PVC insulation and PVC sheath); — 2 signal-/control cables with PVC insulation for 70°C (one screened and unscreened), dimensions 2 × 2 × 0,8 mm or 1 × 4 × 0,8 mm according to EN 50288-7 Configuration 3: If only signal-/control cables for an operating voltage up to 110 V (AC) are required by the sponsor, the following cable types shall be laid in the fire protective system: — 2 signal-/control cables with PVC insulation for 70°C (one screened and unscreened), dimensions 2 × 2 × 0,8 mm or 1 × 4 × 0,8 mm according to EN 50288-7. Configuration 4: If communication/data cables or optical fibre cables are required by the sponsor, the sponsor shall specify the cable(s). 7.1.4 The cables shall be fixed either directly to the bottom of the fire protective system, or to a tray or ladder according to EN 61537 laid in the fire protective system, using metal clips or suitable plastic fastener spaced at one meter intervals maximum. The position of the cables is shown in Figure 5. The crossing of the cables shall be in middle of the specimen with a tolerance of 300 mm to each side. The cables shall be installed with the minimum stated bending radius in normal use. The tray or ladder shall be earthed. 7.1.5 Fire protective systems shall be subjected to a uniformly distributed equivalent load specified by the sponsor. The equivalent load shall be taken as the difference between the load specified by the sponsor and the load exerted by the tested cables during the test. Equivalent loads shall be applied on the bottom of the fire protective system if no cable tray is used or on the tray / ladder as line loads of a length of maximum 400 mm with a space of ~50 mm. Steel chains or cables may be used as an alternative. Steel chains or cables may be continuous. The loads shall remain fixed in the same position throughout fire exposure. 7.2 Fire protective systems with busbars 7.2.1 Busbar trunking systems from a series used for testing shall have the largest and smallest conductor cross sections specified by the sponsor. For busbar trunking systems each conductor type (copper, aluminium) and the maximum number of conductors and the maximum cross sectional area of the conductors shall be tested. If both orientations of the conductors (vertical and horizontal) are to be covered, both orientations shall be tested. 7.2.2 Connecting elements (e.g. sleeves and junction boxes) shall be included in the test, since they are part of the system. Every type of connecting element and the largest and smallest shall be tested. The fire protective system with busbars shall be installed in the same way as fire protective systems for cables. 7.3 Special cases 7.3.1 If it is required by the sponsor to test a cable penetrating the wall of the fire protective system an additional power cable with PVC insulation and PVC sheath, dimension 4 or 5 × 16 mm2, shall be included in the test specimen (fire protective system) with the smallest cross section. The exposed length of the unprotected cable outside the fire protective system shall be at least 300 mm. If another cable is tested than the field of application is limited, see section 13.1. SIST EN 1366-11:2018

EN 1366-11:2018 (E) 12 7.3.2 If it is intended to penetrate the fire protective system with any systems like earthing systems, pipes or other devices as defined by the sponsor, they shall be tested in the test specimen (fire protective system) with the smallest cross section. The exposed length of the unprotected system outside the fire protective system shall be at least 300 mm. 7.3.3 If it is required by the sponsor ventilation devices in fire protective systems shall be included in the test specimen and located (side, bottom or top of fire protective system, see also 13.10.1) as specified by the sponsor. They have to be located between two suspension devices. For protective systems incorporating natural ventilation devices, these devices shall be left open at the beginning of the test. 7.3.4 If it is required by the sponsor inspection hatches in fire protective systems shall be included in the test specimen and located (side, bottom or top of fire protective system) as specified by the sponsor. The hatches shall be located between two suspension devices. 7.3.5 If it is intended to have a fire protective system with b

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