SIST-TP CLC/TR 50658:2022
(Main)Cable management systems (CMS) providing support for cables with intrinsic fire resistance
Cable management systems (CMS) providing support for cables with intrinsic fire resistance
This document specifies test methods for cable management systems intended (CMS) to provide support for intrinsic fire-resistant cables in order to determine their abilities to maintain the function of electrical power cables and signal/control cables for a specified duration when subjected to fire under defined conditions.
This document establishes a non-hierarchical classification for this ability.
Additional devices to fix the cable management systems providing fire resistant support (CMS-support) to the building structure for example screws, anchors etc. are not covered by this document.
CMS intended to provide support and fire protection for cables are tested according to EN 1366 11.
This document does not apply to powertrack systems.
NOTE Rules for testing CMS-support for fibre optic cables and communication cables are under consideration.
Führungssysteme für Kabel und Leitungen (CMS) zur Verlegung von Kabeln mit intrinsischem Feuerwiderstand
Systèmes de câblage servant à soutenir les câbles à résistance intrinsèque au feu
Sistemi za urejanje okablenja (CMS), ki zagotavljajo podporo kablov z notranjo požarno odpornostjo
Tehnično poročilo določa preskusne metode za sisteme za urejanje okablenja, da se ugotovi njihova sposobnost vzdrževanja delovanja električnih napajalnih kablov in signalnih/krmilnih kablov v določenem časovnem obdobju pri določenih pogojih izpostavljenosti ognju.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2022
Sistemi za urejanje okablenja (CMS), ki zagotavljajo podporo kablov z notranjo
požarno odpornostjo
Cable management systems (CMS) providing support for cables with intrinsic fire
resistance
Führungssysteme für Kabel und Leitungen (CMS) zur Verlegung von Kabeln mit
intrinsischem Feuerwiderstand
Systèmes de câblage servant à soutenir les câbles à résistance intrinsèque au feu
Ta slovenski standard je istoveten z: CLC/TR 50658:2022
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
29.060.20 Kabli Cables
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT CLC/TR 50658
RAPPORT TECHNIQUE
TECHNISCHER REPORT September 2022
ICS 13.220.50; 29.060.20; 91.140.50
English Version
Cable management systems (CMS) providing support for cables
with intrinsic fire resistance
Systèmes de câblage servant à soutenir les câbles à Führungssysteme für Kabel und Leitungen (CMS) zur
résistance intrinsèque au feu Verlegung von Kabeln mit intrinsischem Feuerwiderstand
This Technical Report was approved by CENELEC on 2022-09-12.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TR 50658:2022 E
Contents Page
European foreword .5
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms and definitions .7
4 Fire resistance classification . 10
5 Documentation . 10
6 Rules for test . 11
6.1 Common rules . 11
6.2 CMS-support specific rules . 14
7 Test Report . 41
Annex A (normative) Extended application of test results to other assemblies . 43
Annex B (informative) Extended application of test results to other assemblies . 46
Bibliography . 49
Figures Page
Figure 1 — Typical circuit arrangement . 13
Figure 2 — Positioning of thermocouples . 13
Figure 3 — Test arrangement for cable tray system, mesh cable tray system and cable ladder
system . 15
Figure 4 — Trapeze system . 16
Figure 5 — Cantilever system with additional support at or near the end of the bracket . 16
Figure 6 — Cantilever system without additional support and location of the pendants . 17
Figure 7 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
trapeze system (Figure 4) and cantilever system with additional support at or near the bracket
(Figure 5) . 17
Figure 8 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
cantilever system without additional support (Figure 6) . 18
Figure 9 — Point loads . 18
Figure 10 — Test arrangement for cable trunking system ceiling mounted . 22
Figure 11 — Examples for arrangements of installations from the ceiling . 22
Figure 12 — Test arrangement for cable trunking system wall mounted . 23
Figure 13 — Examples for arrangements of installations on the wall . 23
Figure 14 — Test arrangement for conduit system and cable ducting system ceiling mounted . 27
Figure 15 — Examples for arrangements of installations from the ceiling . 27
Figure 16 — Test arrangement for cable ducting system and conduit system wall mounted . 28
Figure 17 — Examples for arrangements of installations on the wall . 28
Figure 18 — Test arrangement for cable cleats below a ceiling . 31
Figure 19 — Typical arrangement for loading a ceiling mounted cleat with mandrels . 32
Figure 20 — Test arrangement for cable cleats designed for use with cable tray lengths, mesh cable
tray lengths, cable ladder lengths and cable trunking lengths below a ceiling . 33
Figure 21 — Typical arrangements for loading a ceiling mounted cable cleat designed for use with
cable tray lengths, mesh cable tray lengths, cable ladder lengths and cable trunking lengths . 34
Figure 22 — Test arrangement for cable cleats on a wall . 35
Figure 23 — Typical arrangement for loading a wall mounted cleat with mandrels. 36
Figure 24 — Test arrangement for cable cleats designed for use with cable tray length, mesh cable
tray length, cable ladder length and cable trunking length on a wall . 37
Figure 25 — Typical arrangements for a wall mounted cable cleat designed for use with cable tray
lengths, mesh cable tray lengths, cable ladder lengths and cable trunking lengths . 38
Figure 26 — Horizontal or inclined ceilings . 40
Figure 27 – Horizontally running fire resistant installations on vertical or inclined wall . 40
Figure 28 – Vertically running fire resistant installations on vertical or inclined walls . 41
Figure A.1 — Examples A to G for assemblies of cable tray system, mesh cable tray system and
cable ladder system supported by pendant and bracket . 43
Figure A.2 — Examples A to G for assemblies of cable trunking system supported by pendant only . 44
Figure A.3 — Examples A to G for assemblies of cable trunking system supported by pendant and
bracket . 44
Figure A.4 — Examples A to G for assemblies of cable ducting system and conduit system supported
by pendant only . 44
Figure A.5 — Examples A to G for assemblies of cable ducting system and conduit system supported
by pendant and bracket . 45
Figure B.1 — Examples A to G for assemblies of cable tray system, mesh cable tray system and
cable ladder system supported by pendant, bracket, and additional support . 46
Tables Page
Table 1 — Fire resistance classifications for CMS providing support . 10
Table 2 — Minimum test duration . 11
Table 3 — Minimum number of point loads per span . 19
Table 4 — Limiting stress values . 20
Table 5 — Extended applications of test arrangements according to Figures 11 and 13 . 25
Table A.1 — Results for extending the test results to other assemblies according to examples in
Figures A.1 to A.5 . 45
European foreword
This document (CLC/TR 50658:2022) has been prepared by CLC/TC 213 “Cable management systems”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
The purpose of the test detailed in this document is to evaluate the ability of a Cable Management System
(CMS) to support cables with intrinsic fire resistance enabling them to maintain their function for a specified
time period whilst exposed to fire. The test is conducted under conditions of a standard time/temperature curve
when installed in a standardised representative condition.
This document for cable management products is used for electrotechnical purposes. It relates to the Council
Directives on the approximation of laws, regulations and administrative provisions of the Member States
relating to Low Voltage Directive 2014/35/EU through consideration of the essential requirements of this
Directive.
This document is supported by separate standards to which references are made.
1 Scope
This document specifies test methods for cable management systems intended (CMS) to provide support for
intrinsic fire-resistant cables in order to determine their abilities to maintain the function of electrical power
cables and signal/control cables for a specified duration when subjected to fire under defined conditions.
This document establishes a non-hierarchical classification for this ability.
Additional devices to fix the cable management systems providing fire resistant support (CMS-support) to the
building structure for example screws, anchors etc. are not covered by this document.
CMS intended to provide support and fire protection for cables are tested according to EN 1366-11.
This document does not apply to powertrack systems.
NOTE Rules for testing CMS-support for fibre optic cables and communication cables are under consideration.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
3.1
cable management system
(CMS)
assembly including different system components intended for the accommodation of insulated conductors,
cables and other electrical equipment in electrical and/or communication systems
Note 1 to entry: Examples of CMS or CMS products are cable tray systems, mesh cable tray systems, cable ladder
systems, cable trunking systems, conduit systems, cable ducting systems, cable cleats, cable ties.
3.2
cable management systems providing fire resistant support
(CMS-Support)
cable management system providing support for cables with intrinsic fire resistance to maintain their function
for a specified time period under defined test conditions
Note 1 to entry: Support of the cables may be provided for example by suitable cable tray systems, mesh cable tray
systems, cable ladder systems, cable trunking systems, conduit systems, cable ducting systems, cable cleats, cable ties.
3.3
product type
group of system components of similar design with limited variations
Note 1 to entry: Cable tray lengths and fittings, mesh cable tray lengths and fittings and cable ladder lengths and fittings
- variation in width and/or variation in perforation of the base area of the tested product but not more than ± 5 % (e.g., if
the tested product has a perforation of 15 % the group has to be between 10 % and 20 %).
Note 2 to entry: Cable trunking lengths and fittings - variation in width.
Note 3 to entry: Cable ducting lengths and fittings - variation in width.
Note 4 to entry: Conduit lengths and fittings - variation in diameter and/or variation in material thickness but not more
than ± 20 %.
Note 5 to entry: Cable cleats (cable fixing) - variation in diameter (where a cable cleat does not have a circular opening
this allowance may be applied to the cable diameter) and/or variation in width but not more than ± 20 % and/or variation in
material thickness but not more than ± 20 %.
Note 6 to entry: Support device - cantilever brackets and centrally supported brackets having the same declared load
capacity, based on testing at ambient temperature in accordance with EN 61537, can vary in material thickness, length,
and height.
Note 7 to entry: Support device - C-shaped ceiling supports having the same declared load capacity, based on testing
at ambient temperature in accordance with EN 61537, can vary in material thickness, width, and height.
Note 8 to entry: Support device - Pendant - variation in length.
Note 9 to entry: Support device - Trapeze support - variation in width.
3.4
system component
part of the system according to its product standard
3.5
cable tray length
system component used for cable support consisting of a base with integrated side members or a base
connected to side members
[SOURCE: EN 61537:2007, 3.3]
3.6
cable ladder length
system component used for cable support consisting of supporting side members, fixed to each other by
means of rungs
[SOURCE: EN 61537:2007, 3.4]
3.7
mesh cable tray length
system component used for cable support consisting of a base with integrated side members made of wires
3.8
fitting
system component used to connect, change direction, change dimension, or terminate cable tray lengths,
mesh cable tray lengths, cable ladder lengths, trunking lengths or ducting lengths
[SOURCE: EN 61537:2007, 3.5 modified]
3.9
cable runway
assembly comprised of cable tray lengths, cable ladder lengths or mesh cable tray lengths and fittings only
[SOURCE: EN 61537:2007, 3.6 modified]
3.10
trunking length
main component of a cable trunking system comprising a base with one or more access covers which may be
opened or removed
[SOURCE: EN 50085-1:2005, 3.4]
3.11
cable trunking system
(CTS)
assembly comprising a trunking length and other system components to provide an enclosure for the
accommodation and laying in of insulated conductors and cables and possibly the accommodation of other
electrical equipment
[SOURCE: EN 50085-1:2005, 3.1]
3.12
pendant (hanger)
vertical suspension device
3.13
cantilever bracket
horizontal supporting device fixed to the wall or to a hanger or pendant providing mechanical support
3.14
cantilever system
assembly comprising a pendant and a bracket
3.15
trapeze support
horizontal supporting device supported by two or more pendants
3.16
trapeze system
assembly comprising pendants and a trapeze support
3.17
cable cleat
device provided with a means of attachment to a mounting surface and that provides securing of cables when
installed at intervals along the length of cables
Note 1 to entry: Examples of mounting surfaces that may be specified are cable tray systems, mesh cable tray systems,
cable ladder systems, cable trunking systems, struts, or rails (see EN IEC 61914:2021, Figure A.8).
Note 2 to entry: For some examples of cable cleats see EN IEC 61914:2021, Figure A.1 to Figure A.10. These examples
do not limit the use of other cable cleat designs that conform to the requirements of this EN IEC 61914.
[SOURCE: EN IEC 61914:2021, 3.1, modified — the wording of Notes 1 and 2 to entry have been adapted]
3.18
cable with intrinsic fire resistance
electric cable designed to continue to operate in a designated manner whilst subjected to a specific source of
heat for a specified period of time under specified conditions
[SOURCE: EN 50577:2015, 3.3]
4 Fire resistance classification
This classification applies to CMS as described in its product standard and does not apply to additional devices
to fix the CMS to the building structure for example screws, anchors etc.
CMS providing fire resistant support are classified with one or more of the following classifications listed in
Table 1:
Table 1 — Fire resistance classifications for CMS providing support
CMS-support classification Classification of cables
with intrinsic fire
resistance which can be
supported
P 15 P 15
P 30 P 30
P 60 P 60
P 90 P 90
P 120 P 120
The CMS-support classification obtained by this test is non-hierarchical. For example, a CMS-support
classified P60 is not for use with P15 and P30 cables unless it is also tested and classified with these specific
cables.
5 Documentation
The documentation of the manufacturer of the CMS should include all information necessary for the proper
and safe installation and use related to the classification according to Clause 4. The information should include:
• Reference to the classification of the CMS-support in accordance with Clause 4:
• where a full test pass has been recorded, or, where a partial test pass has been recorded (see 6.1.4),
reference to the classification of the CMS-support in accordance with Clause 4,
• details of the cables that passed the test, and a statement that the classification is only applicable for
the specific cable(s) that passed the test;
• The voltage(s) used in the test;
• Mounting and installation instructions for use of the CMS under fire conditions;
NOTE Instructions might include sketches, figures, etc.
• Maximum distances between fixing points or supports for use under fire conditions;
• The grade (yield strength) of all materials of which the CMS-support is manufactured;
• Maximum mechanical load of cables for use under fire conditions;
• Advice to the installer that the CMS-support is to be fixed to the building structure in a way appropriate for
fire conditions;
• A recommendation to the installer to mark the finished installation with a label indicating the fire resistance
classification of the CMS-support, the year of installation, the name and address of the responsible
installer and optionally the reference of a document establishing the resistance to fire of the CMS-support
according to this document.
NOTE Marking of the finished installation is a requirement in some countries.
6 Rules for test
6.1 Common rules
6.1.1 General
The following common rules apply to all tests according to this document:
• A CMS tested according to this document is compliant with its product standard;
• A CMS providing fire resistant support (CMS-Support) classified according to Table 1 is compliant with
the relevant test according to Clause 6;
• Tests according to this document are type tests;
• Tests are carried out in accordance with EN 1363-1 in order to establish the classification according to
Table 1. The minimum test duration is defined in Table 2;
Table 2 — Minimum test duration
CMS-support classification Minimum test duration
(minutes)
P 15 15
P 30 30
P 60 60
P 90 90
P 120 120
• A CMS is tested with P-classified cables.
NOTE 1 The fire resistance of a P-classified cable is tested in accordance with the relevant standard selected from the
following list:
• EN 50577, Electric cables - Fire resistance test for unprotected electric cables (P classification);
• EN 50582, Procedure to assess the circuit integrity of optical fibres in a cable under resistance to fire testing;
• EN 50289-4-16, Communication cables - Specifications for test methods – Part 4-16: Environmental test methods -
Circuit integrity under fire conditions.
NOTE 2 Rules for testing CMS-support for fibre optic cables according to EN 50582 and communication cables
according to EN 50289-4-16 are under consideration.
6.1.2 Furnace
The construction of the furnace is such that it:
• Is capable of accommodating the relevant test arrangement defined in 6.2.1 to 6.2.5;
• Allows for the positioning of the sample to be at least 500 mm away from the centreline of the burners;
• Is capable of producing the temperature and pressure conditions according to EN 1363-1 for at least
120 minutes.
The furnace walls and ceilings constructed for the purpose of this test are left to dry in ambient conditions for
at least 16 hours prior to the test.
6.1.3 General arrangement for testing a CMS providing support for cables with intrinsic fire
resistance
For checking the continuity and integrity of the electrical circuit a three-phase transformer of sufficient capacity
to maintain the required test current, is connected to all of the conductors under test as shown in Figure 1
(Typical circuit arrangement).
Each CMS-support classification declared according to Table 1 is tested using a relevant set of P-classified
cables. Each set consists of six P-classified cables of the same classification. The cables are taken from three
different manufacturers with two cables of the same type from each manufacturer.
The set of P-classified cables consists of the following cable types:
• P-classified cables with an operating voltage of 230/400 V AC are represented by either 4 × 1,5 mm
or 5 × 1,5 mm conductors, and/or
• P-classified cables with a lower operating voltage are represented by either two pairs or four
conductors with the smallest conductor size in the family.
Indicating devices such as lamps or LEDs are used to determine the interruption of circuit continuity in the
conductors.
NOTE Figure 1 shows the connections for one cable.
The test is carried out with an operating voltage of 230/400 V AC and/or 110/190 V AC and/or the rated voltage
of the cable used for the test.
The test result is only valid for applications with an operating voltage equal to or lower than the operating
voltage used in the test.
The indicating devices are chosen to achieve a test current of approximately 0,25 A through each conductor.
Fuses used in the test procedure are 2 A Type DII complying with HD 60269-3. Alternatively, a circuit breaker
may be used. Where a circuit breaker is used, it has equivalent characteristics to the fuse in accordance with
Annex C of EN 50200:2015.
Key
L1, L2, L3 phase conductors (L2, L3 if present)
N neutral conductor (if present)
PE protective earth (if present)
1 transformer
2 fuse (2 A)
3 connection to phase L1 (or L2 or L3)
4 test conductor or group
5 load and indicating device (e.g., lamp)
6 cable
7 metal screen (if present)
8 cable management system
Figure 1 — Typical circuit arrangement
The temperature inside the furnace is measured by using thermocouples of the type specified in EN 1363-1
and is arranged inside the furnace as shown in Figure 2.
Dimensions in mm
Key
1 thermocouple
S distance between equally spaced thermocouples
O width of the opening
Figure 2 — Positioning of thermocouples
6.1.4 Test result
The sample passes the test if, taking into account the duration of the claimed classification, all of the following
conditions are fulfilled:
• At least 5 of the 6 cables are still functioning at the end of the duration of the claimed classification, and
th
• the 6 cable was functioning for at least 80 % of the duration of the claimed classification.
When the above conditions are fulfilled, the CMS-support can be classified according to Table 1 to support
cables with intrinsic fire resistance for any cable manufacturer.
If only both cables from one or two manufacturers are still functioning after the specified time period, the CMS-
support can be classified according to Table 1 to support cables with intrinsic fire resistance only for the
cable(s) that passed the test.
If an indicating device ceases to operate, it is determined first whether it is a failure of the conductor or a failure
of the indicating device.
In case of failure of the indicating device, replace the indicating device during the test.
6.2 CMS-support specific rules
6.2.1 Test for cable tray systems, mesh cable tray systems and cable ladder systems
6.2.1.1 General
Cable tray systems, mesh cable tray systems and cable ladder systems classified according to Table 1 are
tested in accordance with 6.2.1.2.
The test is carried out with the maximum:
• width of cable tray length and fitting, mesh cable tray length and fitting or cable ladder length and fitting,
• length of pendant,
• length of cantilever bracket,
• width of trapeze support,
as declared by the manufacturer.
The test arrangement is assembled and installed according to the manufacturer's instructions. Different jointing
methods or different jointing positions constitute different product types. Metallic cable tray systems, mesh
cable tray systems and cable ladder systems are connected to earth.
Wall mounted cantilever brackets used in the test are mounted to a rigid support construction simulating wall
mounting conditions. Cantilever brackets which are suitable for wall and pendant mounting need only be tested
in the pendant arrangement.
The cable is installed side by side in one layer uniformly distributed with the minimum bending radius as
declared by the cable manufacturer allowing a tolerance of +10 %. If a single cable tray, mesh cable tray or
cable ladder does not have enough space to accommodate all six cables, an additional identical cable tray,
mesh cable tray or cable ladder is used in the test arrangement.
6.2.1.2 Test requirements
The test arrangement comprises of a minimum length of the sample of 2,8 m with a minimum of two spans. All
spans are equal. The cable tray, mesh cable tray or cable ladder has a joint in a mid-span position of one of
the lengths and one 90° bend representing any kind of fitting in the same horizontal plane as the lengths (see
Figure 3).
NOTE 1 The 90° bend can be built using two 45° bends.
The test arrangement including brackets, trapeze supports, and pendants as shown in Figures 4, 5 and 6 are
installed in the furnace in accordance with the manufacturer's instructions. Additional support for fittings is
permitted when specified in the manufacturer’s instructions and is described in the test report. The distance
“X” (see Figure 3) is stated in the test report and in the manufacturer’s instructions. All connections of the 90°
bend are inside the furnace. The location of pendants of cantilever system without additional support as shown
in Figure 6 are on the same side of the sample.
NOTE 2 If it is not possible to fix, for example, brackets to the sidewalls of the furnace, additional wall parts or steel
constructions can be placed inside the furnace directly in contact with the side walls.
Dimensions in millimetres
Key
1 cable tray length/ mesh cable tray length/ cable ladder length
2 90° bend or two 45° bends
3 joint
a, b, c support positions
d additional support for the 90° bend or the two 45° bends if required by the manufacturer´s instructions for fire
resistance
L distance between supports
R inside radius
X distance between support position and joint of the fitting
W width of the cable tray / mesh cable tray / cable ladder
Figure 3 — Test arrangement for cable tray system, mesh cable tray system and cable ladder system
Dimensions in millimetres
Key
1 trapeze support
2 pendant (threaded rod, profile or similar)
Figure 4 — Trapeze system
Dimensions in millimetres
Key
1 bracket
2 pendant (threaded rod, profile or similar)
3 additional support (threaded rod, profile or similar)
Figure 5 — Cantilever system with additional support at or near the end of the bracket
Dimensions in millimetres
Key
1 bracket
2 pendant
Figure 6 — Cantilever system without additional support and location of the pendants
The furnace is provided with two openings allowing the sample to enter and exit the furnace. The openings
provide a clearance as shown in Figure 7 and 8 around the sample. The openings in the furnace are filled with
high density (95 ± 20) kg/m mineral wool insulation material and any remaining gaps are filled with lower
density (45 ± 10) kg/m mineral wool insulation material.
To prevent the test sample from moving into the furnace during the test a fixing device (e.g., right angled
bracket as shown in Figure 7 and 8 or C-Profile) is fixed to the sample which protrudes outside of the furnace
but not fixed to walls of the furnace in order to allow expansion of the sample.
Dimensions in millimetres
Key
1 opening in the furnace
2 fixing device (right angled bracket)
3 cable tray, mesh cable tray or cable ladder
4 lower density mineral wool
5 high density mineral wool
Figure 7 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
trapeze system (Figure 4) and cantilever system with additional support at or near the bracket
(Figure 5)
Dimensions in millimetres
Key
1 opening in the furnace
2 fixing device (right angled bracket)
3 cable tray, mesh cable tray or cable ladder
4 lower density mineral wool
5 high density mineral wool
Figure 8 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
cantilever system without additional support (Figure 6)
Unless required by manufacturer’s instructions of the CMS-support, the cables are not fixed to the cable tray,
mesh cable tray or cable ladder. For the positioning of the cables, cable ties made from plastic materials may
be used and may be removed before testing.
The load declared by the manufacturer is applied to the sample for the duration of the test. The application of
the load is by means of suspending steel chains or load plates outside of the sample as shown in Figure 9 in
such a way that the load does not limit the deflection of the sample. The load remains applied, and the load
application positions remain in the same area during the test.
The distance d between the outer edge and the load application position is 1% to 20% of the width of the CMS-
support with a maximum of 50 mm.
Figure 9 — Point loads
Table 3 — Minimum number of point loads per span
Span - L Minimum number “n”
m of point loads per span
L ≤ 2,0 5
2,0 < L ≤ 2,5 6
2,5 < L ≤ 3,0 7
3,0 < L ≤ 3,5 8
Loads like load plates and / or chains are suspended and are uniformly distributed along the length of each
span according to Table 3 using steel wire to fix them. The loads are applied in a such a way that they do not
interfere with lower samples in the furnace, if any.
For cable tray, the loads are attached to the existing bottom holes if any, close to both side members. If there
are no holes, holes can be drilled near both side members.
For mesh cable tray, the loads are attached to the wires close to both side members.
For cable ladder the loads are attached to the rungs close to both side members.
The method of attaching the loads is such that it does not limit the deflection of the sample.
The temperature inside the furnace is measured by using thermocouples of the type specified in EN 1363-1
and are arranged inside the furnace as shown in the Figure 2.
Electrical power is applied to the transformer and the indicating devices are checked to confirm that the cables
have electrical continuity. The test is then carried out in accordance with EN 1363-1 in order to achieve a
particular classification according to Table 1.
6.2.1.3 Extended application
Test results of cable tray systems, mesh cable tray systems and cable ladder systems installed horizontally
are also valid for diagonally installed cable tray systems, mesh cable tray systems and cable ladder systems
if all of the following requirements are fulfilled:
• The inclination of the diagonal section does not exceed 45° from the horizontal;
• Distance between support and the end of the horizontal cable tray lengths, mesh cable tray lengths or
cable ladder lengths does not exceed the distance X (see Figure 3);
• For diagonally running cable tray lengths, mesh cable tray lengths or cable ladder lengths with a length
exceeding 0,7 times the tested support distance, additional supports are required.
For vertically running cable tray systems, mesh cable tray systems and cable ladder systems, see
requirements according to 6.2.4.4.
A positive test result for a cable tray system, mesh cable tray system or cable ladder system with a bracket
fixed to a pendant also applies to a bracket fixed directly to a wall, provided the bracket is suitable for direct
wall mounting.
The tested number of cable runways according to Figure 4 and 5 can be extended and need not be tested
provided the stress in the pendant/additional support does not exceed the values in Table 4. Some examples
according to Figure 5 are given in Annex B (informative).
Pendants according to Figure 4, 5 and 6 with a welded head plate can be substituted by a bolded head plate
or vice versa provided the stress in the pendant/additional support does not exceed the values in Table 4.
Table 4 — Limiting stress values
Type of load Maximum stress
N/mm
Classification according to P 15, P 30 and P 60 P 90 and P 120
Table 1
Tensile stress in all vertically 9 6
orientated components
Shearing stress in screws of 15 10
property class 4.6 according to
EN ISO 898-1:2013
Extended application of test results to other assemblies of CMS-support according to Figure 6 is given in
Annex A.
A positive test result for a cable tray system, mesh cable tray system or cable ladder system is applicable only
when the conditions deviate from the tested conditions for one or more of the following rules:
• Shorter span;
• Lower load;
• Cable tray systems, mesh cable tray systems or cable ladder systems of the same product type that have
narrower width;
• Pendant with shorter length for support system according to Figure 6 and pendants with shorter or longer
length for support systems according to Figure 4 and 5;
• Cantilever bracket with shorter length;
• System components of the same product type made of another material from similar structure, provided
that, when temperature increases up to the maximum test temperature, its yield strength remains equal
or higher than the yield strength of the tested material at the same temperature;
NOTE Material from similar structure includes, for example, from one steel to another steel but excludes from
aluminium alloy to steel.
• Different galvanized finishing or different paint finishing;
• When fixing devices are used between the ceiling and suspension means, direct suspension from the
ceiling is also permitted;
• The addition of a divider.
Application of the test results can be extended to cable tray lengths and fittings, mesh cable tray lengths and
fittings or cable ladder lengths and fittings which only deviate from the tested one in a higher material thickness.
In this case the load on the support (weight of the CMS length plus cable weight) cannot exceed the tested
load on the support.
The test result for a cable tray system, mesh cable tray system or cable ladder system is not applicable when
the conditions deviate from the tested conditions for one or more of the following rules:
• Addition or removal of a cover;
• Removal of a divider;
• Additional parts in the suspension of the CMS-support from the ceiling;
• Removal of a support.
A CMS with P classification according to Table 1 for a given duration is deemed to be able to support PH
classified cables for the same duration as long as the temperature does not exceed the temperature conditions
of EN 50200.
6.2.2 Test for cable trunking systems
6.2.2.1 General
Cable trunking systems classified according to Table 1 are tested in accordance with 6.2.2.2. The test is carried
out with the maximum:
• Width of cable trunking length and fitting;
• Length of pendant;
• Length of cantilever bracket;
• Length of trapeze support;
as declared by the manufacturer.
The test arrangement is assembled and installed according to the manufacturer's instructions. Different jointing
methods or different jointing positions constitute different product types. Metallic cable trunking systems are
connected to earth.
Wall mounted cantilever brackets used in the test are mounted to a rigid support construction simulating wall
mounting conditions. Cantilever brackets which are suitable for wall and pendant mounting need only be tested
in the pendant arrangement.
The cable is installed side by side in one layer uniformly distributed with the minimum bending radius in normal
use as declared by the cable manufacturer allowing a tolerance of +10 %. If the cable trunking does not have
enough space to accommodate all six cables an additional identical cable trunking is used in the test
arrangement.
6.2.2.2 Test requirements
The test arrangement comprises of a minimum length of the sample of 2,8 m with a minimum of two spans. All
spans are equal. The cable trunking system has a joint in a mid-span position of one of the lengths and one
90° bend representing any kind of fitting in the same horizontal plane as the lengths (see Figure 10 and 12).
NOTE The 90° bend can be built using two 45° bends.
The test arrangement including brackets, trapeze supports, and pendants as shown in Figures 11 and 13 are
installed in the furnace following the manufacturer's instructions. Additional support for fittings is permitted
where specified in the manufacturer’s instructions and described in the test report. The distance “X” (see
Figures 10 and 12) is stated in the test report and in the manufacturer’s instructions. Both connections of the
90° bend have to be inside the furnace.
Dimensions in millimetres
Key
1 cable trunking length
2 90° horizontal bend or two 45° horizontal bends
3 joint
4 additional joint depending on the product length
a, b, c support positions
d additional support for the 90° bend or the two 45° bends if required by the manufacturer´s instructions
for fire resistance
L distance between supports
X distance between support position and joint of the fitting
W width of the cable trunking
Figure 10 — Test arrangement for cable trunking system ceiling mounted
The arrangement is installed in the furnace in accordance with the manufacturer's instructions which include
the distance between supports.
Key
1, 2, 3a, 3b and 4 arrangement exposed to fire on 4 sides
5 arrangement exposed to fire on 3 sides
Figure 11 — Examples for arrangements of installations from the ceiling
Dimensions in millimetres
Key
1 cable trunking length
2 90° bend or two 45° bends
3 joint
4 additional joint depending on the product length
5 false wall
a, b, c support positions
d additional support for the 90° bend or the two 45° bends if required by the manufacturer´s instructions for
fire resistance
L distance between supports
X distance between support position and fixing joint
Figure 12 — Test arrangement for cable trunking system wall mounted
Key
6 and 7 arrangement exposed to fire on 2 sides
10 arrangement exposed to fire on 3 sides
8 and 9 arrangement exposed to fire on 4 sides
Figure 13 — Examples for arrangements of installations on the wall
The furnace is provided with two openings allowing the sample to enter and leave the furnace. The openings
provide a clearance as shown in Figure 7 and 8 around the sample. The openings in the furnace are filled with
high density (95 ± 20) kg
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