SIST EN 50264-3:2003
(Main)Railway applications - Railway rolling stock cables having special fire performance - Standard wall -- Part 3: Multicore cables
Railway applications - Railway rolling stock cables having special fire performance - Standard wall -- Part 3: Multicore cables
Superseded by EN 50264-2-2:2008
Bahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Standard Isolierwanddicken -- Teil 3: Mehr- und vieladrige Leitungen
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Câbles à isolation d'épaisseur normale -- Partie 3: Câbles multiconducteurs
Railway applications - Railway rolling stock cables having special fire performance - Standard wall - Part 3: Multicore cables
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50264-3:2003
01-februar-2003
Railway applications - Railway rolling stock cables having special fire performance
- Standard wall - Part 3: Multicore cables
Railway applications - Railway rolling stock cables having special fire performance -
Standard wall -- Part 3: Multicore cables
Bahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem
Verhalten im Brandfall - Standard Isolierwanddicken -- Teil 3: Mehr- und vieladrige
Leitungen
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des
performances particulières de comportement au feu - Câbles à isolation d'épaisseur
normale -- Partie 3: Câbles multiconducteurs
Ta slovenski standard je istoveten z: EN 50264-3:2002
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
29.060.20 Kabli Cables
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN 50264-3:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 50264-3:2003
---------------------- Page: 2 ----------------------
SIST EN 50264-3:2003
EUROPEAN STANDARD EN 50264-3
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2002
ICS 13.220.20; 29.060.20; 45.060.01
English version
Railway applications -
Railway rolling stock cables having special fire performance -
Standard wall
Part 3: Multicore cables
Applications ferroviaires - Bahnanwendungen -
Câbles pour matériel roulant ferroviaire Kabel und Leitungen für Schienen-
ayant des performances particulières fahrzeuge mit verbessertem Verhalten
de comportement au feu - im Brandfall -
Câbles à isolation d'épaisseur normale Standard Isolierwanddicken
Partie 3: Câbles multiconducteurs Teil 3: Mehr- und vieladrige Leitungen
This European Standard was approved by CENELEC on 2002-03-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50264-3:2002 E
---------------------- Page: 3 ----------------------
SIST EN 50264-3:2003
EN 50264-3:2002 - 2 -
Foreword
This European Standard was prepared for Technical Committee CENELEC TC 20 “Electric
cables” by Working Group 12 “ Railway cables” as part of the overall programme of work in
CENELEC TC 9X “Electrical and electronic applications for railways”.
The text of the draft was submitted to the formal vote and was approved by CENELEC as
EN 50264-3 on 2002-03-01.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-07-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-07-01
Annexes designated “informative” are given for information only.
In this standard annex A is informative.
---------------------- Page: 4 ----------------------
SIST EN 50264-3:2003
- 3 - EN 50264-3:2002
Contents
Page
Introduction .4
1 Scope.5
2 Normative references.5
3 Definitions .6
4 Rated voltage.6
5 Designation, marking and coding.7
6 Construction of cables.8
7 Tests .15
Annex A (informative) - Guidance on selection of cables for type approval.25
Bibliography .25
Table 1 - Multicore cables - Unscreened (300 V / 500 V).11
Table 2 - Multicore cables - Screened (300 V / 500 V).12
Table 3 - Dimensions of core (0,6 kV/ 1kV).13
Table 4 - Two cores (0,6 kV/1 kV) unscreened .13
Table 5 - Two cores (0,6 kV/1 kV) screened .14
Table 6 - Three cores - (0,6 kV/1 kV) unscreened .14
Table 7 - Three cores - (0,6 kV/1 kV) screened .15
Table 8 - Four cores - (0,6 kV/1 kV) unscreened .15
Table 9 - Four cores - (0,6 kV/1 kV) screened .16
Table 10 - Schedule of tests for cables.22
---------------------- Page: 5 ----------------------
SIST EN 50264-3:2003
EN 50264-3:2002 - 4 -
Introduction
EN 50264 covers cables with standard wall thickness of insulation , both sheathed and un-
sheathed, based upon halogen free materials, for use in railway rolling stock. It is divided
into 3 parts:
Part 1: General requirements;
Part 2: Single core cables;
Part 3: Multicore cables.
Special test methods referred to in EN 50264 are given in EN 50305. A Guide to use is
given in (EN 50355 – under development).
Part 1, General requirements, contains a more extensive introduction to EN 50264, and
should be read in conjunction with this Part 3.
---------------------- Page: 6 ----------------------
SIST EN 50264-3:2003
- 5 - EN 50264-3:2002
1 Scope
Part 3 of EN 50264 specifies requirements for, and constructions and dimensions of,
multicore cables of the following types and voltage ratings:
2 2 2
- 300 V/500 V Screened or unscreened (1 mm , 1,5 mm and 2,5 mm , number of cores
from 2 to 40)
2 2
- 0,6 kV/1 kV Screened or unscreened, (1 mm to 50 mm , 2, 3 and 4 core)
NOTE 1 Not all conductor sizes or number of cores are specified for every type.
All cables have class 5 tin coated annealed copper conductors to HD 383, halogen-free
insulation and halogen-free sheath. They are for use in railway rolling stock as fixed wiring,
or wiring where limited flexing in operation is encountered. The requirements provide for a
continuous conductor temperature not exceeding 90 �C and a maximum temperature for
short circuit conditions of 200 �C based on a duration of 5 seconds.
Under fire conditions the cables exhibit special performance characteristics in respect of
maximum permissible flame propagation (flame spread) and maximum permissible emission
of smoke and toxic gases. These requirements are specified to permit the cables to satisfy
Hazard Levels 2, 3 or 4 of EN 45545-1.
NOTE 2 Requirements for the emission of smoke and gases are not specified for hazard level 1 of EN 45545-1.
NOTE 3 EN 45545-1 is still under development and should be consulted.
Part 3 of EN 50264 should be used in conjunction with Part 1, General requirements.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and
the publications are listed hereafter. For dated references, subsequent amendments to or
revisions of these references apply to this European Standard only when incorporated in it
by amendment or revision. For undated references the latest edition of the publication
referred to applies.
EN 10002-1 Tensile testing of metallic materials - method of test at ambient
temperature
1)
EN 45545-1 Railway applications - Fire protection of railway vehicles -
Part 1: General
EN 50264-1 Railway applications - Railway rolling stock cables having special fire
performance - Standard wall - Part 1: General Requirements
EN 50264-2 Railway rolling stock cables having special fire performance - Standard
wall - Part 2: Single core cables
EN 50265-2-1 Common test methods for cables under fire conditions - Test for
resistance to vertical flame propagation for single insulated conductor
or cable - Part 2-1: Procedures – 1 kW pre-mixed flame
1)
At draft stage.
---------------------- Page: 7 ----------------------
SIST EN 50264-3:2003
EN 50264-3:2002 - 6 -
EN 50266-2-4 Common test methods for cables under fire conditions - Test for vertical
flame spread of vertically-mounted bunched wires or cables -
Part 2-4: Procedures - Category C
EN 50267-2-1 Common test methods for cables under fire conditions - Tests on
gasses evolved during combustion of materials from cables -
Part 2-1: Procedures - Determination of the amount of halogen acid gas
EN 50267-2-2 Common test methods for cables under fire conditions - Tests on gases
evolved during combustion of materials from cables -
Part 2-2: Procedures - Determination of degree of acidity of gases for
materials by measuring pH and conductivity
EN 50268-2 Common test methods for cables under fire conditions - Measurement
of smoke density of electric cables burning under defined conditions -
Part 2: Procedure
EN 50305 Railway applications - Railway rolling stock cables having special fire
performance – Test methods
EN 50334 Marking by inscription for the identification of cores of electric cables
EN 60684-2 Specification for flexible insulating sleeving - Part 2: Methods of test
EN 60811-1-1 Insulating and sheathing materials of electric and optical cables -
Common test methods - Part 1-1: General application - Measurement of
thickness and overall dimensions - Tests for determining the
mechanical properties
EN 60811-1-2 Insulating and sheathing materials of electric cables - Common test
methods - Part 1-2: General application - Thermal ageing methods
EN 60811-1-3 Insulating and sheathing materials of electric cables – Common test
methods - Part 1-3: General application - Methods for determining the
density Water absorption tests - Shrinkage test
EN 60811-1-4 Insulating and sheathing materials of electric cables - Common test
methods - Part 1-4: General application – Tests at low temperature
EN 60811-2-1 Insulating and sheathing materials of electric and optical cables –
Common test methods - Part 2-1: Method specific to elastomeric
compounds – Ozone resistance, hot set and mineral oil immersion tests
HD 383 Conductors of insulated cables - First supplement: Guide to the
dimensional limits of circular conductors
3 Definitions
For the purposes of this standard the definitions given in EN 50264-1 apply.
4 Rated voltage
The rated voltage for multicore cables shall be as follows:
2 2
a) 300 V/500 V (1 mm to 2,5 mm ) control cables
2 2
b) 0,6 kV/1 kV (1,5 mm to 50 mm ) power cables
---------------------- Page: 8 ----------------------
SIST EN 50264-3:2003
- 7 - EN 50264-3:2002
5 Designation, marking and coding
5.1 Code designation
For the purpose of supplying cables to this standard, the following code designation shall
be used:
EN reference, number of cores and conductor size, identifier for the particular hazard level
(see 5.2)
For example:
EN 50264 37 x 1,5 F
5.2 Code identities for cables suitable for use in particular hazard levels
The following letters shall be used as a code to identify the suitability of a particular cable
for use under one of the Hazard Levels of EN 45545-1, and to indicate performance levels
relating to low temperature and to oil and fuel resistance.
Hazard level EN 45545-1 HL1 HL2 or HL4
HL3
Low temperature/Oil resistance A B C
Extra low temperature/ Oil resistance D E F
Low temperature/ Extra oil and fuel resistance G H J
Extra low temperature/ Extra oil and fuel KL M
resistance
5.3 Marking of cable
Cables shall be marked with the following:
- manufacturer’s name;
- EN reference;
- metallic screen (S);
- voltage rating (U );
o
- number of cores and conductor size;
- identifier for the particular hazard level (see 5.2).
For example:
XYZ EN 50264-3 S 300 V 37 x 1,5 F
The marking shall conform to the requirements of clause 5 of EN 50264-1.
5.4 Core identification
The cores of all cables, except the earthing conductor, shall be black unless otherwise
specified.
Cores complying with this part or EN 50264-2 may be used as components of multicore
cables. The identification of the individual core in a cable, except the earthing conductor,
shall be by printed number or colour.
---------------------- Page: 9 ----------------------
SIST EN 50264-3:2003
EN 50264-3:2002 - 8 -
The number shall be printed in a colour which contrasts with the core colour.
The marking by numbers shall conform to EN 50334, unless otherwise specified, and
conformity shall be checked by visual examination and measurement.
5.5 Sheath
The sheath shall be black unless otherwise specified.
6 Construction of cables
6.1 General
The control cable dimensions shall be as given in Tables 1 or 2.
The power cable core dimensions shall be as given in table 3 and the other cable
dimensions as given in Tables 4 to 9.
If agreed between the purchaser and manufacturer, cables may be made with the number
of cores not specified in Table 1 and 2. In such cases the thickness of the sheath and
diameter of the braid wire (if any) shall be those specified in the relevant table for the cable
containing the next higher number of cores.
6.2 Conductor
Conductors shall be tin-coated annealed copper, class 5, according to HD 383.
When tested in accordance with EN 10002-1 the minimum average elongation of the wires
from the conductor shall be 15 %, with a minimum value of 10 % for any individual wire.
NOTE It is not necessary to test all individual wires. 5 % of wires or 10 wires, whichever is the fewer, should be
selected at random.
6.3 Insulation
Insulation shall be one or more extruded materials as defined in EN 50264-1 applied so as
to meet the requirements of EI 101 to EI 105.
The insulation shall be applied to meet the requirements of 6.2 of EN 50264-1.
The insulation thickness shall conform to the specified value given in Tables 1 to 3.
6.4 Laying up of cores and fillers
For control cables the cores shall be twisted together with either a continuous right or left-
hand direction of lay.
For power cables the cores shall be twisted together with either a continuous right or left-
hand direction of lay.
The pitch or lay for primary cores shall not be greater than 20 times the diameter of the
bunch of cores in the cable.
---------------------- Page: 10 ----------------------
SIST EN 50264-3:2003
- 9 - EN 50264-3:2002
NOTE Non-hygroscopic fillers may be applied as given in 6.3 of EN 50264-1. A synthetic binder tape may be
used over the laid-up assembly at the manufacturers discretion.
6.5 Metallic screen
Where screens are applied over cores a tape shall be used.
6.5.1 Metallic screening braid
The braid shall consist of tin coated annealed copper wires. There shall be no more than
one splice in any spindle of the braid over any 10 cm length of the braid. The braid shall be
applied evenly; it should neither slip nor leave a permanent imprint in the insulation.
The filling factor Kr shall be according to the formula:
05,
22
� �
mn.d ��
Kr�� 1�
� �
2
2�� L
� �
The lay angle (the angle of a braid wire and the centreline of the cable) shall be between
15� and 35�.
2 2
� �
� �
1,072 � 1� �1,490
� �
2
L
� �
� = diameter of the core under the braid + 2d
d = nominal diameter of a wire
m = total number of bundles
n = number of wires per bundle
L = braiding pitch
The diameters of the wires of the braid shall be a minimum of 0,15 mm diameter such that
the filling factor is 0,55 minimum.
6.6 Sheath
Sheaths shall be either of compound types EM 101, EM 102, EM 103 or EM 104 for cables
of all types.
The sheath shall be applied to meet the requirements of 6.6 of EN 50264-1.
The sheath thickness shall conform to the specified value given in Tables 1, 2 or 4 to 9 as
appropriate.
6.7 Construction
Power and control cables of all types shall be composed of the following components in the
order given:
- conductor flexible tin coated annealed copper, class 5
- separator (optional) at the manufacturers discretion
- insulation a compound or compounds given in 6.3
- laying up and fillers as given in 6.4
- metallic screen (where required) as given in 6.5 and specified in the table
- separator at the manufacturer’s discretion
- sheath compound as given in 6.6.
---------------------- Page: 11 ----------------------
EN 50264-3:2002 - 10 -
SIST EN 50264-3:2003
Table 1 - Multicore cables - Unscreened (300 V / 500 V)
12 345 6 7 8 10
9
Number and Conductor Mean Diameter of Mean Overall diameter Conductor Insulation resistance Insulation resistance
b b
nominal diameter thickness of thickness of D resistance
core at 20 �C at 90 �C
cross- d insulation sheath at 20 �C
EI 101 – EI 104 EI 105 EI 101 – EI 104 EI 105
sectional
a
min. min. min. max. max Min. min. Min. min.
area
2
n � mm mm mm mm mm mm mm �/km M�/km M�-km M�-km M�-km
0,6 2,6 1,4 7,2 8,5 20,0 55 140 0,55 70
2 � 1
4 � 1 0,6 2,6 1,4 8,2 9,6 20,0 55 140 0,55 70
7 � 1 0,6 2,6 1,4 9,6 11,2 20,0 55 140 0,55 70
9 � 1 0,6 2,6 1,4 11,5 13,4 20,0 55 140 0,55 70
12 � 1 1,25 0,6 2,6 1,4 12,3 14,4 20,0 55 140 0,55 70
0,6 2,6 1,4 14,5 16,6 20,0 55 140 0,55 70
19 � 1
24 � 1 0,6 2,6 1,5 16,7 19,6 20,0 55 140 0,55 70
32 � 1 0,6 2,6 1,6 18,5 21,7 20,0 55 140 0,55 70
37 � 1 0,6 2,6 1,6 19,2 22,4 20,0 55 140 0,55 70
40 � 1 0,6 2,6 1,6 19,9 23,3 20,0 55 140 0,55 70
4 � 1,5 0,7 3,0 1,4 9,2 10,8 13,7 53 120 0,53 60
0,7 3,0 1,4 10,9 12,8 13,7 53 120 0,53 60
7 � 1,5
9 � 1,5 1,5 0,7 3,0 1,4 13,1 15,3 13,7 53 120 0,53 60
12 � 1,5 0,7 3,0 1,4 14,0 16,4 13,7 53 120 0,53 60
19 � 1,5 0,7 3,0 1,5 16,5 19,4 13,7 53 120 0,53 60
24 � 1,5 0,7 3,0 1,6 19,5 22,8 13,7 53 120 0,53 60
0,7 3,0 1,7 21,5 25,2 13,7 53 120 0,53 60
32 � 1,5
37 � 1,5 0,7 3,0 1,7 22,4 26,2 13,7 53 120 0,53 60
4 � 2,5 0,8 3,7 1,4 10,7 12,5 8,21 50 90 0,50 45
0,8 3,7 1,4 12,7 14,9 8,21 50 90 0,50 45
7 � 2,5
9 � 2,5 1,95 0,8 3,7 1,5 15,6 18,3 8,21 50 90 0,50 45
12 � 2,5 0,8 3,7 1,5 16,7 19,6 8,21 50 90 0,50 45
0,8 3,7 1,6 19,7 23,1 8,21 50 90 0,50 45
19 � 2,5
24 � 2,5 0,8 3,7 1,8 23,5 27,5 8,21 50 90 0,50 45
a
One conductor may be coloured green and yellow and shall be contained in the outer layer.
b
For information, indicative only.
---------------------- Page: 12 ----------------------
- 11 - EN 50264-3:2002
SIST EN 50264-3:20
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.