EN 50317:2025
(Main)Railway applications - Current collection systems - Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line
Railway applications - Current collection systems - Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line
This document specifies the functional requirements for output and accuracy of measurements of the dynamic interaction between pantograph and overhead contact line.
Bahnanwendungen - Stromabnahmesysteme - Anforderungen und Validierung von Messungen des dynamischen Zusammenwirkens zwischen Stromabnehmer und Oberleitung
Applications ferroviaires - Systèmes de captage de courant - Prescriptions et validation des mesures de l'interaction dynamique entre le pantographe et la caténaire
Le présent document spécifie les exigences fonctionnelles pour la production et la précision des mesures de l'interaction dynamique entre le pantographe et la ligne aérienne de contact (caténaire).
Železniške naprave - Sistemi za odjem toka - Zahteve in veljavnost meritev medsebojnih dinamičnih vplivov med odjemnikom toka in kontaktnim vodnikom
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 50317:2024
01-junij-2024
Železniške naprave - Sistemi za odjem toka - Zahteve in veljavnost meritev
medsebojnih dinamičnih vplivov med odjemnikom toka in kontaktnim vodnikom
Railway applications - Current collection systems - Requirements for and validation of
measurements of the dynamic interaction between pantograph and overhead contact line
Bahnanwendungen - Stromabnahmesysteme - Anforderungen und Validierung von
Messungen des dynamischen Zusammenwirkens zwischen Stromabnehmer und
Oberleitung
Applications ferroviaires - Systèmes de captage de courant - Prescriptions et validation
des mesures de l'interaction dynamique entre le pantographe et la caténaire
Ta slovenski standard je istoveten z: prEN 50317:2024
ICS:
29.280 Električna vlečna oprema Electric traction equipment
45.060.10 Vlečna vozila Tractive stock
oSIST prEN 50317:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 50317:2024
oSIST prEN 50317:2024
EUROPEAN STANDARD DRAFT
prEN 50317
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2024
ICS 29.280; 45.060.10 Will supersede EN 50317:2012; EN
50317:2012/AC:2012; EN 50317:2012/A1:2022
English Version
Railway applications - Current collection systems -
Requirements for and validation of measurements of the
dynamic interaction between pantograph and overhead contact
line
Applications ferroviaires - Systèmes de captage de courant Bahnanwendungen - Stromabnahmesysteme -
- Prescriptions et validation des mesures de l'interaction Anforderungen und Validierung von Messungen des
dynamique entre le pantographe et la caténaire dynamischen Zusammenwirkens zwischen Stromabnehmer
und Oberleitung
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2024-07-12.
It has been drawn up by CLC/SC 9XC.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 77510 Ref. No. prEN 50317:2024 E
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prEN 50317:2024 (E)
1 Contents Page
2 European foreword . 3
3 1 Scope . 6
4 2 Normative references . 6
5 3 Terms, definitions and abbreviations . 6
6 3.1 Terms and definitions . 6
7 3.2 Abbreviations and symbols . 9
8 4 General . 10
9 5 Measurement of cord forces (tethered test) . 11
10 5.1 General . 11
11 5.2 Test conditions . 11
12 5.3 Mean cord force . 13
13 5.4 Aerodynamic correction force . 13
14 6 Measurement of contact force . 13
15 6.1 General requirements. 13
16 6.2 Aerodynamic influence of the measurement system . 15
17 6.3 Inertia correction force . 15
18 6.4 Aerodynamic correction force . 15
19 6.5 Dynamic laboratory test of the instrumented pantograph . 15
20 6.6 Measurement parameters . 16
21 6.7 Measurement results . 16
22 7 Measurement of displacement . 17
23 7.1 General . 17
24 7.2 Vertical displacement of the contact point . 17
25 7.3 Uplift at the support . 17
26 7.4 Measurement of other displacements in the overhead contact line. 18
27 7.5 Measurement of times during pantograph lowering . 18
28 8 Measurement of arcing . 20
29 8.1 General requirements. 20
30 8.2 Calibration of the arc measurement system . 22
31 8.3 Adjustment of threshold for the measurement distance . 22
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32 8.4 Values to be measured . 23
33 8.5 Measurement results . 23
34 Bibliography . 24
35 Figure
36 Figure 1 — Cord test . 12
37 Figure 2 — Contact force measurement. 14
38 Figure 3 — Times for pantograph lowering process . 20
39 Figure 4 — Detector location . 22
40 Table
41 Table 1 — Minimum conditions recorded for measurements . 11
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42 European foreword
43 This document (prEN 50317:2024) has been prepared by CLC/SC 9XC, “Electric supply and earthing systems
44 for public transport equipment and ancillary apparatus (Fixed installations)”, of CLC/TC 9X, “Electrical and
45 electronic applications for railways”.
46 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
47 This document will supersede EN 50317:2012 and all of its amendments and corrigenda (if any).
48 prEN 50317:2024 includes the following significant technical changes with respect to EN 50317:2012:
49 — changed definitions for “collector head” replaced by “pantograph head” (3.1);
50 — changed definitions for “total mean uplift force” replaced by “mean cord force” (3.1);
51 — new definition “expansion length” (3.1);
52 — changed definitions “arcing” (3.1);
53 — added definition for “nominal voltage”, “electrical clearance” (3.1);
54 — new definition “reference threshold”, “measurement threshold” and “reference distance” (3.1);
55 — updated abbreviation lists (now 3.2);
56 — minimum conditions recorded for measurements (Clause 4);
57 — more detailed explanation of measurement of cord forces (Clause 5);
58 — measurement of contact force (Clause 6);
59 — updated requirements for definitions of requirements;
60 — aerodynamic influence, Inertia correction force, Aerodynamic correction force;
61 — definition of Dynamic laboratory test of the instrumented pantograph;
62 — updated requirements for of measurement results, control section possible acceptable exceptions;
63 — measurement of displacement (Clause 7);
64 — uplift at the support how to achieve representative results;
65 — measurement of times during pantograph lowering (7.5);
66 — measurement of arcing (Clause 8);
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67 — removed wavelength 323 nm – 329 nm;
68 — reference threshold values from note to normative;
69 — more detailed definition of control section and possible acceptable exceptions;
70 — more detailed definition of Adjustment of threshold for the measurement distance.
71 This document has been prepared under a standardization request addressed to CENELEC by the European
72 Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
73 Member States.
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74 1 Scope
75 This document specifies the functional requirements for output and accuracy of measurements of the dynamic
76 interaction between pantograph and overhead contact line.
77 2 Normative references
78 The following documents are referred to in the text in such a way that some or all of their content constitutes
79 requirements of this document. For dated references, only the edition cited applies. For undated references,
80 the latest edition of the referenced document (including any amendments) applies.
*
81 EN 50318:2018, Railway applications - Current collection systems - Validation of simulation of the dynamic
82 interaction between pantograph and overhead contact line
83 EN 50206-1:2010, Railway applications - Rolling stock - Pantographs: Characteristics and tests - Part 1:
84 Pantographs for main line vehicles
85 EN 50119:2020, Railway applications - Fixed installations - Electric traction overhead contact lines
86 3 Terms, definitions and abbreviations
87 3.1 Terms and definitions
88 For the purposes of this document, the following terms and definitions apply.
89 ISO and IEC maintain terminology databases for use in standardization at the following addresses:
90 — ISO Online browsing platform: available at https://www.iso.org/obp
91 — IEC Electropedia: available at https://www.electropedia.org/
92 3.1.1
93 pantograph head
94 pantograph pan
95 part of the pantograph comprising the contact strips and their mountings, horns and possibly a suspension
96 [SOURCE: IEC 60050-811:2017, 811-32-05]
97 3.1.2
98 working area of pantograph head
99 lateral and vertical range of possible contact points on the contact strips during normal operation
100 3.1.3
101 contact point
102 point of mechanical contact between a contact strip and a contact wire
103 3.1.4
104 contact force
105 vertical force applied by the pantograph to the contact wire(s)
106 Note 1 to entry: The contact force is the sum of forces of all contact points of a pantograph.
107 Note 2 to entry: The contact force is measured perpendicular to the contact plane.
*
As impacted by EN 50318:2018/A1:2022
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108 3.1.5
109 mean contact force
110 F
m
111 statistical mean value of the contact force
112 Note 1 to entry F is formed by the static and aerodynamic components of the pantograph contact force.
m
113 Note 2 to entry This mean value can be assessed by simulation or measurement over a specified time or distance.
114 3.1.6
115 static contact force
116 vertical force exerted upward by the pantograph head on the overhead contact line at standstill
117 3.1.7
118 aerodynamic force
119 additional vertical force applied by the pantograph as a result of air flow around the pantograph assembly,
120 depending upon speed
121 3.1.8
122 aerodynamic correction force
123 difference between the sum of cord forces and the sum of sensors forces
124 3.1.9
125 inertia correction force
126 inertia of mass between force sensors and the contact point
127 3.1.10
128 standard deviation of contact force
129 σ
130 square root of the sum of the square errors divided by the number of output values minus 1
131 3.1.11
132 statistical minimum of contact force
133 value of contact force represented by F – 3 σ
m
134 3.1.12
135 statistical maximum of contact force
136 value of contact force represented by F + 3 σ
m
137 3.1.13
138 cord force
139 measured force in a cord restraining a contact strip at a defined height
140 3.1.14
141 mean cord force
142 statistical mean value of cord force measured at the pantograph head, the latter not touching the contact line,
143 being equal to the sum of static contact force and the aerodynamic force caused by the air at the considered
144 speed for a given height of contact points
145 3.1.15
146 transfer function magnitude
147 magnitude of the ratio between the measured and applied forces of the pantograph and instrumentation
148 determined by a dynamic excitation of the pantograph, at the pantograph head for a range of frequencies
149 3.1.16
150 tension length
151 length of a flexible overhead contact line between two terminating points
152 [SOURCE: IEC 60050-811:2017, 811-33-61, modified – “flexible” has been added]
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153 3.1.17
154 expansion length
155 length of a rigid overhead contact line between two terminating points or
156 expansion joints (dilatation joint)
157 3.1.18
158 expansion joint
159 dilatation joint
160 joint connecting two expansion length of a rigid overhead contact line
161 3.1.19
162 control section
163 representative part of the total measuring length, over which the measuring conditions are compliant with
164 specified conditions
165 3.1.20
166 pantograph current
167 current that flows through the pantograph
168 3.1.21
169 arcing
170 arc
171 luminous discharge of electricity across an insulating medium, usually accompanied by the partial volatilization
172 of the electrodes
173 Note 1 to entry: A complete sinusoidal current half-cycle is not considered to be an arcing half-cycle.
174 [SOURCE: IEC 60050-442:2019, 442-05-65, modified, “arcing” used as preferred term]
175 3.1.22
176 sensitivity curve
177 relationship between the power density of the arc in µW/cm and the response of the detector in volts within
178 the spectral range of interest
179 3.1.23
180 nominal current
181 current that flows through one pantograph for nominal power of a tested train at the nominal voltage of the
182 traction power supply system
183 3.1.24
184 nominal voltage
185 value of the voltage by which the electrical installation or part of the electrical
186 installation is designated and identified
187 [SOURCE: IEC 60050-826:2022, 826-11-01]
188 3.1.25
189 electrical clearance
190 minimum distance in air permitted between fixed structures and parts energized at contact
191 line voltage
192 Note 1 to entry: The distance in air is used to provide functional insulation or basic insulation.
193 [SOURCE: IEC 60050-811:2017, 811-09-05]
194 3.1.26
195 threshold
196 x
197 surface power density generated by the smallest arc that can be detected at measurement distance
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198 3.1.27
199 reference threshold
200 x
ref
201 surface power density generated by the smallest arc detected at reference distance
202 3.1.28
203 distance
204 d
205 measure between arc detector and light source (contact strip, at operation height)
206 3.1.29
207 reference distance
208 d
ref
209 distance between arc detector and light source chosen to set the reference threshold
210 3.1.30
211 percentage of arcing
212 NQ
213 proportion of driving time with arcing in relation to total driving time
214 3.2 Abbreviations and symbols
215 For the purposes of this document, the following abbreviations and symbols apply.
a acceleration measured in acceleration sensor i
Sensori
d measurement distance between arc detector and light source (contact strip, at operation
height)
d reference distance between arc detector and light source
ref
F aerodynamic force (F – F )
aero m,cord stat
F magnitude of force applied to pantograph head at frequency f
applied,i i
F contact force
c
F cord force (total of F )
cord cord,i
F cord force of cord i of an arrangement of cords
cord,i
arithmetic mean cord force of cord i of an arrangement of cords
F
cord,i
F aerodynamic force correction (F – F / see 6.4)
corraero cord c
F mean contact force
m,c
F mean cord force
m,cord
F magnitude of force measured at frequency f
measured,i i
F measured force in sensor i
Sensori
F static contact force
stat
f minimum frequency
f actual frequency
i
f maximum frequency
n
J accuracy of the transfer function
m mass between contact point and force sensors (see 6.3)
above
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n number of test frequencies
n number of acceleration sensors
a
n number of cord force sensors
c
n number of contact force sensors
f
NQ percentage of arcing
OCL Overhead Contact Line
t duration of arcs recorded
arc
t total time for the control section
total
v speed
x threshold (x) is the surface power density generated by the smallest arc that can be detected
at measurement distance
x reference threshold is the surface power density generated by the smallest arc detected at
ref
reference distance
σ standard deviation of contact force
216 4 General
217 The measurement of the interaction of the contact line and the pantograph is intended to prove the safety of
218 operation and the quality of the current collection system. Results of measurements of different current
219 collection systems shall be comparable, to assess systems on the lines of the European railway network on
220 an equal basis.
221 NOTE 1 Measured values are also required for validation of simulation programs and other measurement systems.
222 To check the performance capability of the current collection system at least the following data shall be
223 measured:
224 — the contact wire uplift at the support as the pantograph passes for flexible overhead contact line;
225 and either
226 — the mean contact force and standard deviation of contact force;
227 or
228 — the mean contact force and percentage of arcing;
229 or
230 — the mean cord force and percentage of arcing.
231 NOTE 2 The limit for the performance capability is given by the EN 50367:2020, Table 6 and 7 as mean contact force.
232 The mean contact force can be proven by contact force measurement or by cord test.
233 In addition to the measured values, the operating conditions, the environmental conditions and test
234 configuration during the measurement shall be recorded in the test report. Table 1 provides the minimum
235 conditions that shall be noted in the test report.
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236 Table 1 — Minimum conditions recorded for measurements
Cord test Contact force Measurement of Measurement of
measurement displacement arcing
Train velocity X X X X
General location X X X X
Continuous For OCL For OCL
location assessment assessment
Environmental X X X X
conditions
237 NOTE 3 typical operating conditions are train speed, location (information about the test section), etc.
238 NOTE 4 typical environmental conditions are rain, ice, temperature, wind speed and direction, tunnel, fog, etc.
239 NOTE 5 typical test configurations are parameters and arrangement of pantographs including their orientation, type of
240 overhead contact system etc.
241 Additionally following parameters shall be noted in the test report:
242 — type and configuration of pantograph;
243 — type, wear and mass of the collector strips;
244 — aerofoil configuration;
245 — type of contact line;
246 — nominal contact wire heights of test sections;
247 — train configuration, position and direction of pantographs in use;
248 — modifications on moveable parts of the pantograph, if any;
249 — modifications of original parts of the pantograph during the measurements and any measuring equipment
250 at the pantograph, if any.
251 NOTE 6 This can be done by a photo documentation of the instrumented pantograph to be able to re-install the
252 measuring equipm
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