EN 50200:2015
(Main)Method of test for resistance to fire of unprotected small cables for use in emergency circuits
Method of test for resistance to fire of unprotected small cables for use in emergency circuits
This European Standard specifies the test method for cables designed to have intrinsic resistance to fire and intended for use as emergency circuits for alarm, lighting and communication purposes. This European Standard is applicable to cables for emergency circuits of rated voltage not exceeding 600 V/1 000 V, including those of rated voltage below 80 V and optical fibre cables. This European Standard includes details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to electric power and control cables with rated voltage up to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to copper data and telecom cables and optical cables are given in the relevant standards of CLC/TC 46X and CLC/TC 86A. The test method is limited to cables with an overall diameter not exceeding 20 mm. The test method is based on the direct impingement of flame from a propane burner giving a constant temperature attack of a notional 842 °C. It is intended to be used for cables for emergency circuits suitable for alarm, emergency lighting and communication. NOTE When the test method is used in support of EN 13501-3, it only applies to cables of less than 20 mm diameter, and, for metallic conductor cables, to those with conductor sizes up to and including 2,5 mm². For optical cables, only the less than 20 mm diameter limit applies. This European Standard includes (Annex B) the field of direct application and rules for extended application of test results (EXAP). Details regarding classification using data from this test are given in EN 13501-3 . Information regarding classification is given in Annex D. This European Standard also includes informative guidance (Annex E) on a means of applying a water spray to the cable during the test. Such a requirement may be a feature of particular product standards.
Prüfung des Isolationserhaltes im Brandfall von Kabeln mit kleinen Durchmessern für die Verwendung in Notstromkreisen bei ungeschützter Verlegung
Méthode d'essai de la résistance au feu des câbles de petites dimensions sans protection pour utilisation dans les circuits de secours
Metoda preskušanja požarne odpornosti nezaščitenih malih kablov v zasilnih tokokrogih
Ta evropski standard določa preskusne metode za kable, ki so sami po sebi odporni proti požarom in namenjeni za uporabo kot zasilni tokokrogi za namene zvočnih opozoril, razsvetljave in komunikacije.
Ta evropski standard velja za kable zasilnih tokokrogov, katerih nazivna napetost ne presega 600 V/1 000 V, vključno s tistimi z nazivno napetostjo pod 80 V, in kable z optičnimi vlakni. Ta evropski standard vključuje podrobnosti o določeni točki odpovedi, napravi za preverjanje neprekinjenosti, preskusnem vzorcu, preskusnem postopku in poročilu o preskusu v zvezi z električnimi napajalnimi in krmilnimi kabli z nazivno napetostjo do in vključno z 600 V/1 000 V. Podrobnosti o določeni točki odpovedi, napravi za preverjanje neprekinjenosti, preskusnem
vzorcu, preskusnem postopku in poročilu o preskusu v zvezi z bakrenimi podatkovnimi in telekomunikacijskimi kabli so
podane v ustreznih standardih odborov CLC/TC 46X in CLC/TC 86A. Preskusna metoda je omejena na kable, katerih skupni premer ne presega 20 mm. Preskusna metoda temelji na neposrednem stiku s plamenom iz propanskega gorilnika, s katerim se predmet preskusa izpostavi ocenjeni konstantni temperaturi 842 °C. Namenjena je uporabi za kable v zasilnih tokokrogih za namene zvočnih opozoril, razsvetljave in komunikacije.
OPOMBA: Če se preskusna metoda uporablja kot podpora standardu EN 13501–3, se uporablja samo za kable s premerom, manjšim od 20 mm, in za kable s kovinskimi vodniki z velikostjo vodnikov do in vključno z 2,5 mm2. Preskusna metoda se uporablja tudi za optične kable s premerom, manjšim od 20 mm.
Ta evropski standard vključuje (dodatek B) neposredno uporabo in pravila za razširjeno uporabo rezultatov preskusa (EXAP). Podrobnosti glede razvrščanja v razrede na podlagi podatkov preskusa so podane v standardu EN 13501-3 1). Informacije o razvrščanju v razrede so podane v dodatku D.
Ta evropski standard vsebuje tudi informativne smernice (dodatek E) glede pršenja kabla z vodo med preskusom. Ta zahteva je lahko del standardov za določene proizvode.
General Information
Relations
Overview
EN 50200:2015 - Method of test for resistance to fire of unprotected small cables for use in emergency circuits - is a CLC (CENELEC) test standard that defines how to assess the fire resistance of small unprotected cables intended for emergency circuits (alarm, emergency lighting, communication). The method is based on direct flame impingement from a propane burner producing a notional constant temperature attack of 842 °C, and is intended to demonstrate continuity performance under fire conditions.
Key topics and technical requirements
- Scope and limits
- Applies to cables for emergency circuits with rated voltage up to 600 V / 1 000 V, including cables below 80 V and optical fibre cables.
- Overall cable diameter limited to 20 mm for the test method; when used for EN 13501‑3 classification additional limits (e.g., conductor sizes ≤ 2.5 mm² for metallic conductors) apply.
- Test principle
- Direct impingement of flame from a horizontally mounted propane ribbon burner.
- Constant temperature attack (notional 842 °C) with mechanical shock applied during exposure to simulate real fire conditions.
- Test setup and verification
- Test wall made from heat‑resistant, non‑combustible material mounted on rigid supports.
- Draught‑free chamber (minimum volume 20 m³) with controlled ventilation; start temperature (25 ± 15) °C.
- Thermocouples and verification procedure for the heat source; continuity checking arrangements and defined point of failure criteria.
- Required apparatus includes burner, shock producing device, fuses and measurement equipment.
- Reporting and extension
- Standard specifies sample preparation, mounting, electrification, duration of survival and test report contents.
- Annex B covers Field of Direct Application and EXAP (Extended Application of test results).
- Annex E provides informative guidance on an optional water spray protocol.
Practical applications and users
Who uses EN 50200:2015:
- Cable manufacturers and product designers validating fire‑resistant emergency circuits.
- Accredited test laboratories performing fire resistance tests on small cables.
- Certification and regulatory bodies assessing compliance and supporting fire classification.
- Building services engineers, specifiers, and procurement teams selecting cables for alarm, emergency lighting and communication systems in buildings, tunnels, rail and marine installations.
Practical value:
- Demonstrates continuity under fire, supports product selection and compliance with fire safety design, and provides data used for classification under EN 13501‑3.
Related standards
- EN 13501‑3 - Classification using data from fire resistance tests (uses EN 50200 data for cable classification)
- EN 60584‑1 (thermocouples), EN 60695‑4 (fire test terminology), EN ISO 13943 (fire safety vocabulary)
- IEC 60269‑3 - Supplementary requirements for fuses
Keywords: EN 50200:2015, cable fire resistance, emergency circuits, propane burner, small cables, fire test, EXAP, EN 13501‑3, continuity checking, optical fibre cables.
Frequently Asked Questions
EN 50200:2015 is a standard published by CLC. Its full title is "Method of test for resistance to fire of unprotected small cables for use in emergency circuits". This standard covers: This European Standard specifies the test method for cables designed to have intrinsic resistance to fire and intended for use as emergency circuits for alarm, lighting and communication purposes. This European Standard is applicable to cables for emergency circuits of rated voltage not exceeding 600 V/1 000 V, including those of rated voltage below 80 V and optical fibre cables. This European Standard includes details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to electric power and control cables with rated voltage up to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to copper data and telecom cables and optical cables are given in the relevant standards of CLC/TC 46X and CLC/TC 86A. The test method is limited to cables with an overall diameter not exceeding 20 mm. The test method is based on the direct impingement of flame from a propane burner giving a constant temperature attack of a notional 842 °C. It is intended to be used for cables for emergency circuits suitable for alarm, emergency lighting and communication. NOTE When the test method is used in support of EN 13501-3, it only applies to cables of less than 20 mm diameter, and, for metallic conductor cables, to those with conductor sizes up to and including 2,5 mm². For optical cables, only the less than 20 mm diameter limit applies. This European Standard includes (Annex B) the field of direct application and rules for extended application of test results (EXAP). Details regarding classification using data from this test are given in EN 13501-3 . Information regarding classification is given in Annex D. This European Standard also includes informative guidance (Annex E) on a means of applying a water spray to the cable during the test. Such a requirement may be a feature of particular product standards.
This European Standard specifies the test method for cables designed to have intrinsic resistance to fire and intended for use as emergency circuits for alarm, lighting and communication purposes. This European Standard is applicable to cables for emergency circuits of rated voltage not exceeding 600 V/1 000 V, including those of rated voltage below 80 V and optical fibre cables. This European Standard includes details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to electric power and control cables with rated voltage up to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to copper data and telecom cables and optical cables are given in the relevant standards of CLC/TC 46X and CLC/TC 86A. The test method is limited to cables with an overall diameter not exceeding 20 mm. The test method is based on the direct impingement of flame from a propane burner giving a constant temperature attack of a notional 842 °C. It is intended to be used for cables for emergency circuits suitable for alarm, emergency lighting and communication. NOTE When the test method is used in support of EN 13501-3, it only applies to cables of less than 20 mm diameter, and, for metallic conductor cables, to those with conductor sizes up to and including 2,5 mm². For optical cables, only the less than 20 mm diameter limit applies. This European Standard includes (Annex B) the field of direct application and rules for extended application of test results (EXAP). Details regarding classification using data from this test are given in EN 13501-3 . Information regarding classification is given in Annex D. This European Standard also includes informative guidance (Annex E) on a means of applying a water spray to the cable during the test. Such a requirement may be a feature of particular product standards.
EN 50200:2015 is classified under the following ICS (International Classification for Standards) categories: 13.220.40 - Ignitability and burning behaviour of materials and products; 29.035.20 - Plastics and rubber insulating materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 50200:2015 has the following relationships with other standards: It is inter standard links to EN 50200:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 50200:2015 is associated with the following European legislation: Standardization Mandates: M/117. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 50200:2015 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2016
1DGRPHãþD
SIST EN 50200:2006
0HWRGDSUHVNXãDQMDSRåDUQHRGSRUQRVWLQH]DãþLWHQLKPDOLKNDEORYY]DVLOQLK
WRNRNURJLK
Method of test for resistance to fire of unprotected small cables for use in emergency
circuits
Prüfung des Isolationserhaltes im Brandfall von Kabeln mit kleinen Durchmessern für die
Verwendung in Notstromkreisen bei ungeschützter Verlegung
Méthode d'essai de résistance au feu des câbles de petites dimensions sans protection
pour utilisation dans les circuits de secours
Ta slovenski standard je istoveten z: EN 50200:2015
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50200
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2015
ICS 13.220.40; 29.035.20 Supersedes EN 50200:2006
English Version
Method of test for resistance to fire of unprotected small cables
for use in emergency circuits
Méthode d'essai de la résistance au feu des câbles de Prüfung des Isolationserhaltes im Brandfall von Kabeln mit
petites dimensions sans protection pour utilisation dans les kleinen Durchmessern für die Verwendung in
circuits de secours Notstromkreisen bei ungeschützter Verlegung
This European Standard was approved by CENELEC on 2015-09-14. CENELEC 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 CEN-CENELEC
Management Centre or to any CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50200:2015 E
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test environment . 6
5 Test apparatus . 6
5.1 Test equipment . 6
5.2 Test wall and mounting . 7
5.3 Continuity checking arrangement for electric power and control cables with rated
voltage up to and including 600 V/1 000 V . 7
5.4 Source of heat . 8
5.5 Shock producing device . 8
5.6 Positioning of source of heat . 8
5.7 Fuses. 9
6 Verification procedure for source of heat . 9
6.1 Measuring equipment . 9
6.2 Procedure . 9
6.3 Evaluation . 9
6.4 Further verification . 10
6.5 Verification report . 10
7 Test sample (Electric power and control cables with rated voltage up to and including
600 V/1 000 V) . 10
7.1 Sample preparation . 10
7.2 Sample mounting . 10
8 Cable test procedure (Electric power and control cables with rated voltage up to and
including 600 V/1 000 V) . 10
8.1 General . 10
8.2 Electrical connections . 10
8.3 Flame and shock application . 11
8.4 Electrification . 11
8.5 Duration of survival . 12
8.6 Point of failure . 12
9 Test report (Electric power and control cables with rated voltage up to and including
600 V/1 000 V) . 12
Annex A (informative) Guidance on the choice of recommended test equipment . 22
A.1 Burner and Venturi . 22
A.2 Test wall material . 22
A.3 Rubber bushing . 22
Annex B (normative) Field of direct application and extended application of test results
(Electric power and control cables with rated voltage up to and including 600 V/1 000 V) . 23
B.1 Definitions. 23
B.2 Field of direct application . 23
B.3 Extended Application of test results (EXAP) . 24
Annex C (normative) Fuse characteristic curve . 26
Annex D (informative) Information regarding classification . 27
D.1 General . 27
D.2 Functional requirement (PH) and Interpretation . 27
D.3 Classification . 27
Annex E (informative) Guidance for using optional water spray protocol . 28
E.1 General . 28
E.2 Modifications for optional water spray protocol . 28
Bibliography . 31
Figures
Figure 1 — Schematic of test configuration . 13
Figure 2 — Plan view of test equipment . 14
Figure 3 — End elevation of test equipment (not to scale) . 15
Figure 4 — Typical rubber bush (hardness: 50-60 shore A) for fastening the wall to the rigid
supports . 16
Figure 5 — Burner face . 17
Figure 6 — Schematic diagram of an example of a burner control system . 18
Figure 7 — Temperature measuring arrangement . 19
Figure 8 — Example of method of mounting a sample for test . 20
Figure 9 — Basic circuit diagram — Electric power and control cables with rated voltage up
to and including 600 V/1 000 V . 21
Figure C.1 — Fuse characteristic curve . 26
Figure E.1 — Water spray tube . 29
Figure E.2 — Water spray application . 29
European foreword
This document (EN 50200:2015) has been prepared by Working Group 10 of CLC/TC 20 “Electric cables”.
The following dates are fixed:
• latest date by which the document has to be implemented at (dop) 2016-09-14
national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2018-09-14
document have to be withdrawn
This document supersedes EN 50200:2006.
The main changes compared to EN 50200:2006 are as follows (minor changes are not listed):
– detailed procedures for metallic data cables and for optical fibre cables have been removed as they are
now given in the relevant standards of CLC/TC 46X and CLC/TC 86A. These standards refer to
EN 50200 for the basic test method;
– recasting and extension of the existing Annex D into two new Annexes, Annex B “Field of direct
application and extended application of test results (Electric power and control cables with rated voltage
up to and including 600 V/1 000 V) and Annex D “Information regarding classification”.
The cable is tested in a representative installed condition, under conditions of minimum bending radius, and
the test is based upon a constant temperature attack at a minimum test temperature of 830 °C. This is typical
of the gas temperature reached after 30 min exposure to the time/temperature conditions prescribed in
EN 1363-1.
The test method in this document includes exposure to fire with mechanical shock under specified conditions
and satisfies the requirements of Mandate M/117 for the PH classification. This European Standard also
includes (Annex E) a means of applying a water spray to the cable during the test, which is not required
under Mandate M/117.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association.
1 Scope
This European Standard specifies the test method for cables designed to have intrinsic resistance to fire and
intended for use as emergency circuits for alarm, lighting and communication purposes.
This European Standard is applicable to cables for emergency circuits of rated voltage not exceeding
600 V/1 000 V, including those of rated voltage below 80 V and optical fibre cables.
This European Standard includes details for the specific point of failure, continuity checking arrangement,
test sample, test procedure and test report relevant to electric power and control cables with rated voltage up
to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test
sample, test procedure and test report relevant to copper data and telecom cables and optical cables are
given in the relevant standards of CLC/TC 46X and CLC/TC 86A.
The test method is limited to cables with an overall diameter not exceeding 20 mm.
The test method is based on the direct impingement of flame from a propane burner giving a constant
temperature attack of a notional 842 °C. It is intended to be used for cables for emergency circuits suitable
for alarm, emergency lighting and communication.
NOTE When the test method is used in support of EN 13501–3, it only applies to cables of less than 20 mm
diameter, and, for metallic conductor cables, to those with conductor sizes up to and including 2,5 mm . For optical
cables, only the less than 20 mm diameter limit applies.
This European Standard includes (Annex B) the field of direct application and rules for extended application
1)
of test results (EXAP). Details regarding classification using data from this test are given in EN 13501-3 .
Information regarding classification is given in Annex D.
This European Standard also includes informative guidance (Annex E) on a means of applying a water spray
to the cable during the test. Such a requirement may be a feature of particular product standards.
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 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 60584-1, Thermocouples - Part 1: EMF specifications and tolerances (IEC 60584-1)
EN 60695-4, Fire hazard testing - Part 4: Terminology concerning fire tests for electrotechnical products
(IEC 60695-4)
EN ISO 13943, Fire safety - Vocabulary (ISO 13943)
1) At the time of finalizing EN 50200, an amendment to EN 13501-3:2005+A1:2009 concerning cables is under consideration in
CEN/TC 127.
IEC 60269-3:2010 and IEC 60269–3:2010/A1:2013, Low-voltage fuses – Part 3: Supplementary
requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications) -
Examples of standardized systems of fuses A to F
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 13943 and EN 60695-4 and
the following apply.
3.1
draught-free environment
space in which the results of tests are not significantly affected by the local air speed
4 Test environment
The test shall be carried out in a draught-free environment within a suitable chamber, of minimum volume
20 m , with facilities for disposing of any noxious gases resulting from the burning. Sufficient ventilation shall
be available to sustain the flame for the duration of the test. Air inlets and the exhaust chimney should be
located in such a way that the burner flame remains stable during the verification procedure and test.
If necessary, the burner shall be shielded from any draughts by the use of draught shields. Windows may be
installed in the walls of the chamber in order to observe the behaviour of the cable during the test. Fume
exhaust should be achieved by means of natural draught through a chimney located at least 1 m from the
burner. A damper may be used for adjustment of ventilation conditions.
The same ventilation and shielding conditions shall be used in the chamber during both the verification and
cable test procedures.
The chamber and test apparatus shall be at (25 ± 15) °C at the start of each test.
NOTE The test given in this European Standard may involve the use of dangerous voltages and temperatures.
Suitable precautions should be taken against shock, burning, fire and explosion risks that may be involved and against
any noxious fumes that may be produced.
5 Test apparatus
5.1 Test equipment
The test equipment shall consist of the following:
a) a test wall, on to which the cable is mounted, comprising a board manufactured from heat resisting non-
combustible material suitable for the temperatures involved fastened to steel supports and mounted on
a rigid support as described in 5.2;
b) a continuity checking arrangement as described in 5.3;
c) a source of heat comprising a horizontally mounted ribbon burner as described in 5.4;
d) a shock producing device as described in 5.5;
e) a test wall equipped with thermocouples for verification of the source of heat as described in 6.1;
f) fuses as described in 5.7.
A general arrangement of the test equipment is shown in Figure 1, Figure 2 and Figure 3.
5.2 Test wall and mounting
The test wall shall consist of a board of heat resisting, non-combustible and non-metallic material fastened
rigidly to two horizontal steel supports, one at the top of the board and the other at the bottom. Vertical
supports may also be used. The board shall be (900 ± 100) mm long, (300 ± 50) mm high and (10 ± 2) mm
thick, and the total mass of the wall (i.e. board and steel supports) shall be (10 ± 0,5) kg. Ballast, if required,
shall be placed inside the steel supports.
Guidance on the choice of suitable material for the wall is given in Annex A.
Boards should not be re-used if they show significant damage. In case of dispute, a new board shall be used
for each test.
NOTE 1 Supports made from square section steel tube approximately 25 mm x 25 mm and approximately 1 m long
have been found to be suitable.
NOTE 2 The top support should be fastened to the board so that its upper face is slightly above the upper edge of the
board, so that the shock producing device impacts on the support and not the board.
Each horizontal support shall have a mounting hole at each end, not more than 100 mm from the edge of the
board, the exact position and diameter being determined by the particular supporting bush and supporting
framework used. The test wall shall be fastened to a rigid support by four bonded rubber bushes of hardness
50-60 Shore A fitted between the horizontal steel supports of the wall and the support framework, as shown
in Figure 1 and Figure 2, so as to allow movement under impact.
NOTE 3 A typical rubber bush which has been found to be suitable is shown in Figure 4.
In order to check the mounting of the wall, the static deflection following application of a load to the centre of
the upper support of the wall shall periodically be measured.
The values of load and deflection shall comply with the following:
– load: (25 ± 0,2) kg;
– deflection: (1,5 ± 0,3) mm.
5.3 Continuity checking arrangement for electric power and control cables with rated
voltage up to and including 600 V/1 000 V
During the test a current for continuity checking shall be passed through all conductors of the test sample.
This shall be provided by a three phase star connected or single phase transformer(s) of sufficient capacity
to maintain the test voltage up to the maximum leakage current allowable.
NOTE 1 Due note should be taken of the fuse characteristics when determining the power rating of the transformer.
This current is achieved by connecting, at the other end of the sample, a suitable load and indicating device
(e.g. lamp) to each conductor, or group of conductors.
NOTE 2 A current of 0,25 A at the test voltage, through each conductor or group of conductors, has been found to be
suitable.
5.4 Source of heat
5.4.1 Burner
The source of heat shall be a ribbon type propane gas burner with a nominal burner face length of 500 mm
with a Venturi mixer. The nominal burner face width shall be 10 mm. The face of the burner shall have three
staggered rows of drilled holes, nominally 1,32 mm in diameter and drilled at centres 3,2 mm from one
another, as shown in Figure 5.
Guidance on the choice of recommended burner systems is given in Annex A.
NOTE 1 A centre-feed burner is recommended.
NOTE 2 A row of small holes milled on each side of the burner plate, to serve as pilot holes for keeping the flame
burning, is permitted.
5.4.2 Flow meters and flow rates
Mass flow meters / controllers shall be used as the means of controlling accurately the input flow rates of fuel
and air to the burner.
For the purposes of this test, the air shall have a dew point not higher than 0 °C.
The mass flow rates used for the test shall be as follows:
– propane: (160 ± 6) mg/s;
NOTE 1 This is approximately equivalent to a volume flow rate of (5,0 ± 0,2) l/min at reference conditions (1 bar and 20 °C).
– air: (1 600 ± 80) mg/s.
NOTE 2 This is approximately equivalent to a volume flow rate of (80 ± 4) l/min at reference conditions (1 bar and 20 °C).
5.4.3 Verification
The burner and control system shall be subject to verification following the procedure given in Clause 6.
5.5 Shock producing device
The shock producing device shall be a mild steel round bar (25 ± 0,1) mm in diameter and (600 ± 5) mm
long. The bar shall be freely pivoted about an axis parallel to the test wall, which shall be in the same
horizontal plane as, and (200 ± 5) mm away from, the upper edge of the wall. The axis shall divide the bar
into two unequal lengths, the longer length being (400 ± 5) mm which shall impact the wall. The bar shall
+5
drop under its own weight from an angle of ( 60 )° to the horizontal to strike the upper steel support of the
wall at its midpoint as shown in Figure 1 and Figure 3.
5.6 Positioning of source of heat
The burner face shall be positioned in the test chamber such that it is at least 200 mm above the floor of the
chamber or any solid mounting block, and at least 500 mm from any chamber wall.
By reference to the wall the burner shall be positioned centrally at a horizontal distance of (40 ± 2) mm from
the burner face to the test wall as shown in Figure 2 and Figure 3.
NOTE The burner should be rigidly fixed to the framework during testing so as to prevent movement relative to the
test sample.
5.7 Fuses
Fuses used in the test procedures in Clause 8 shall comply with IEC 60269-3 Fuse System A-D Type DII, 2A.
Alternatively, a circuit breaker with equivalent characteristics may be used.
Where a circuit breaker is used, its equi
...
EN 50200:2015規格は、非常用回路で使用するための保護されていない小型ケーブルの耐火性試験方法を定めた重要な欧州規格です。この規格の範囲は、アラーム、照明、通信目的のために設計され、内在的な耐火性を持つケーブルに適用されます。最大電圧が600 V/1 000 Vを超えない非常用回路用のケーブル、80 V未満のケーブル、および光ファイバーケーブルを対象としています。 この規格の強みは、非常用回路向けのケーブルが直炎の影響を受ける際の試験方法が詳細に規定されている点です。例えば、試験方法は、プロパンバーナーからの炎が842 °Cという一定の温度で直接照射されることに基づいています。また、試験の手続きやサンプル、特定の故障点に関する詳細が織り込まれており、一貫したテスト結果を確保するための基準が提供されています。 さらに、EN 50200:2015では、直径が20 mmを超えないケーブルを対象としています。これにより、狭い範囲のケーブルに対する耐火試験が正確に行えるため、実際の使用条件に即した評価が可能となります。試験結果の延長適用に関するルール（EXAP）も含まれており、さまざまな製品規格における応用が支援されています。 この欧州規格は、非常用回路に関する他の規格、特にEN 13501-3との関連性が強く、特に金属導体ケーブルや光ファイバーケーブルに対する適用範囲が特定されています。さらに、試験中のケーブルへの水噴霧の適用方法についての指針も提供されており、特定の製品規格の要件を考慮した柔軟な試験が可能です。 EN 50200:2015は、非常用回路における安全性を確保するための試験方法を明確に規定した価値ある標準であり、現代の様々な応用において、その関連性を高め続けています。
SIST EN 50200:2016은 비보호 소형 케이블의 내화성을 시험하는 방법에 관한 유럽 표준으로, 비상 회로에 사용되는 케이블의 화재 저항 성능을 평가하는 데 중점을 두고 있습니다. 이 표준은 알람, 조명, 통신 목적으로 설계된 비상 회로용 케이블에 대한 시험 방법을 명확하게 정의하고 있습니다. 이 표준의 강점 중 하나는 600 V/1,000 V 이하의 정격 전압을 가진 케이블에 대한 명확한 기준을 제공함으로써 다양한 응용 분야에서의 일관성을 보장한다는 점입니다. 특히, 80 V 이하의 정격 전압을 가진 케이블 및 광섬유 케이블까지 포함하여 적용 범위가 넓어 실용적인 가치가 높습니다. 시험 방법은 프로판 버너의 불꽃을 직접 소형 케이블에 올려놓는 방식으로, 842 °C의 일정한 온도로 적용되어 케이블의 내화성을 평가합니다. 이 점은 비상 회로용 케이블을 위한 핵심 성능 특성을 정확하게 판단할 수 있는 방식입니다. 또한, 시험 샘플, 시험 절차 및 시험 보고서에 대한 구체적인 지침이 제공되어 사용자와 제조업체 모두에게 유용합니다. 이 표준은 CLC/TC 46X 및 CLC/TC 86A와 관련된 다른 규정들과 함께 사용될 수 있으며, 케이블의 고유한 특성에 따라 비상 상황에서의 신뢰성을 높이는 데 중요한 역할을 합니다. 특히, 시험 결과의 확장 적용(extrapolation) 규칙이 포함되어 있어, 특정 조건에서의 데이터 활용이 가능하다는 점도 주목할 만합니다. 또한, Annex B와 Annex E를 통해 시험 결과의 분류와 물 분사 적용 방법에 대한 유용한 정보를 제공하여, 다양한 제품 표준에 대한 추가 요구 사항을 충족할 수 있습니다. 이러한 세부 사항들은 제조업체와 엔지니어들이 내화성 케이블을 설계하고 평가하는 데 실질적인 도움을 줍니다. 종합적으로, SIST EN 50200:2016은 비상 회로용 소형 케이블의 화재 저항 테스트를 위한 포괄적이고 명확한 지침을 제공하며, 현대의 안전 기준을 충족하는 데 중요한 기초 자료로 자리잡고 있습니다.
Die Norm EN 50200:2015 legt eine Testmethode fest, um den Feuerwiderstand ungeschützter Kleinkabel, die in Notstromkreisen eingesetzt werden, zu bewerten. Der Anwendungsbereich dieser europäischen Norm umfasst Kabel, die für Notstromkreise mit einer Nennspannung von bis zu 600 V/1 000 V ausgelegt sind, einschließlich solcher mit einer Nennspannung unter 80 V sowie optischen Kabeln. Ein zentraler Stärke dieser Norm liegt in ihrer spezifischen Methodik, die den direkten Einfluss einer Flamme eines Propangasers auf die Kabel untersucht. Diese Testmethode bietet eine konstante Temperaturangreifung von 842 °C und gewährleistet so eine realistische Prüfung unter Bedingungen, die im Notfall auftreten könnten. Innerhalb des Rahmens dieser Norm werden auch wichtige Details wie der spezifische Punkt des Versagens, die Anordnung zur Kontinuitätsprüfung, das Testmuster, das Testverfahren und der Prüfbericht für elektrische Energie- und Steuerkabel mit Nennspannungen bis zu und einschließlich 600 V/1 000 V definiert. Darüber hinaus werden wichtige Aspekte wie die Beschränkung auf Kabel mit einem Durchmesser von maximal 20 mm und die Anforderungen an metallische Leiterkabel (bis zu einem Querschnitt von 2,5 mm²) oder optische Kabel angesprochen. Die Norm bietet auch umfangreiche Anhänge mit zusätzlichen Informationen und Anleitungen, einschließlich einer Möglichkeit zur Anwendung eines Wassersprays während des Tests, was für bestimmte Produktstandards von Bedeutung sein kann. Die Relevanz der EN 50200:2015 erstreckt sich nicht nur auf die Sicherheit von Kabeln in Notstromkreisen, sondern auch auf die Anwendung in Alarm-, Notbeleuchtungs- und Kommunikationssystemen. Die Norm ist ein unverzichtbares Werkzeug, um sicherzustellen, dass diese Kabel unter extremen Bedingungen zuverlässig funktionieren und somit den notwendigen Schutz in Krisensituationen bieten. Insgesamt ist die EN 50200:2015 eine umfassende und praxisnahe Norm, die sicherstellt, dass die elektrischen Kabel, die in Notstromkreisen eingesetzt werden, den erforderlichen Brandschutzstandards entsprechen, und hat damit eine entscheidende Bedeutung für die Sicherheit in verschiedenen Anwendungen.
The standard EN 50200:2015 effectively delineates a comprehensive methodology for testing the resistance to fire of unprotected small cables intended for use in emergency circuits. Its primary focus is on cables designed to have intrinsic resistance to fire for alarm, lighting, and communication systems, making it highly relevant in the context of ensuring safety in emergency situations. One of the significant strengths of this standard is its clearly defined scope, which encompasses cables for emergency circuits with rated voltages not exceeding 600 V/1 000 V, including those below 80 V and optical fibre cables. This thorough specification allows manufacturers and safety regulators to accurately assess and verify the fire resistance of various cable types, thus enhancing their suitability for critical applications. The standard provides detailed guidelines on several aspects critical to the testing process, including the specific point of failure, continuity checking arrangements, test sample selection, and the overall test procedure. This level of specificity ensures that testing can be conducted consistently and reliably, which is vital for maintaining safety standards across products. Furthermore, the test methodology, which involves direct flame impingement from a propane burner at a temperature of 842 °C, is robust and designed to simulate real-world fire conditions effectively. The limitation of the method to cables with an overall diameter not exceeding 20 mm aligns with practical applications, focusing on more commonly used small cables in emergency installations. The inclusion of annexes enhances the standard’s utility by providing practical guidance on the direct application of test results and the rules for extended application (EXAP). Additionally, the informative guidance regarding the application of a water spray during the test adds further adaptability, catering to specific product requirements that may necessitate such conditions. Overall, EN 50200:2015 stands out as a vital standard in fire safety, particularly for emergency circuits. Its relevance is underscored by the clear guidelines it offers, making it indispensable for manufacturers seeking to ensure their products meet stringent safety and performance criteria in emergency scenarios.
La norme EN 50200:2015 est une référence essentielle pour les tests de résistance au feu des câbles non protégés destinés à être utilisés dans des circuits d'urgence. Son champ d'application est clairement défini et se concentre sur les câbles conçus pour offrir une résistance intrinsèque au feu, spécifiquement pour des circuits d'urgence liés à des systèmes d'alarme, d'éclairage et de communication. Cela en fait un document pertinent non seulement pour les fabricants de câbles, mais aussi pour les ingénieurs et les professionnels impliqués dans la conception et l'installation de systèmes de sécurité. Parmi les points forts de cette norme, on trouve sa précision dans les détails techniques sur les points de défaillance, les dispositions de vérification de continuité, les échantillons de test et les procédures de test. La méthode d’essai, qui repose sur une impaction directe de flamme d'un brûleur à propane à une température constante de 842 °C, garantit une approche rigoureuse pour évaluer la résistance au feu des câbles. De plus, la norme s'applique aux câbles d'une tension nominale ne dépassant pas 600 V/1 000 V et inclut également des spécifications pour les câbles à fibre optique et ceux ayant des tensions inférieures à 80 V. La norme EN 50200:2015 intègre également des annexes utiles, telles que l'annexe B qui traite de l'application directe et des règles pour l'application étendue des résultats des tests. Cela permet aux utilisateurs de mieux comprendre comment les données peuvent être exploitées dans d'autres contextes normatifs. L'inclusion de conseils d'application concernant l'utilisation de l'eau pulvérisée lors des tests, mentionnée dans l'annexe E, souligne également la prise en compte des spécificités des produits. En somme, cette norme constitue un outil incontournable pour garantir la sécurité et la conformité des câbles utilisés dans des circuits d'urgence, tout en répondant aux exigences modernes en matière de normes de sécurité incendie. Sa pertinence dans le cadre des systèmes de sécurité et l'intégration des dernières connaissances techniques font de l'EN 50200:2015 une norme de référence dans le domaine.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...