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eLibrary > 23/30469102 DC BS EN 50617-2. Railway applications. Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 2. Axle counters >

23/30469102 DC BS EN 50617-2. Railway applications. Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 2. Axle counters, 2023

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23/30469102 DC BS EN 50617-2. Railway applications. Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 2. Axle counters, 2023

SC9XA_74426_enq1e.pdf [Go to Page]
1 Scope
2 Normative references
3 Terms, definitions and abbreviations [Go to Page]
3.1 Terms and definitions
3.2 Abbreviations
4 Description of train detection system
5 Safety relevance per parameter
6 Axle counter system parameters [Go to Page]
6.1 RAMS [Go to Page]
6.1.1 General
6.1.2 Reliability
6.1.3 Availability
6.1.4 Rate of miscounts
6.1.5 Maintainability
6.1.6 Safety [Go to Page]
6.1.6.1 General
6.1.6.2 Maximum time between trains
6.2 Immunity against magnetic fields – in-band and out-of-band [Go to Page]
6.2.1 General
6.2.2 Derivation of immunity requirements
6.2.3 Immunity levels for axle counters / Compatibility margins
6.2.4 Frequency range of an ACD
6.3 Immunity to traction and short circuit current in the rail
6.4 Immunity to harmonics of traction current in the rail
6.5 Sensor position integrity control (functional parameter)
6.6 Integration time [Go to Page]
6.6.1 General
6.6.2 Product specific integration time
6.6.3 Derivation of the integration time – Example
6.7 Signalling power supply quality with respect to availability
6.8 Requirements on the connection cables
7 Requirements for axle counter systems based on train parameters [Go to Page]
7.1 General
7.2 Vehicle, wheel and speed dependent parameters [Go to Page]
7.2.1 General
7.2.2 Wheel parameters [Go to Page]
7.2.2.1 General
7.2.2.2 Wheel material
7.2.2.3 Width of the rim
7.2.2.4 Thickness of the flange
7.2.2.5 Height of the flange
7.2.2.6 Wheel diameter
7.2.3 Vehicle and speed depending parameters [Go to Page]
7.2.3.1 General
7.2.3.2 Speed of vehicle
7.2.3.3 Number of axles
7.2.3.4 Overall length
7.2.3.5 Axle-to-axle distance
7.3 Material properties of vehicle parts in the detection area (metal free space)
7.4 Sinusoidal sway of train
7.5 Magnetic track brakes and eddy current brakes
8 Track based parameters [Go to Page]
8.1 Material of sleepers
8.2 Rail fittings/mounting area
8.3 Slab track
8.4 Other rails installations
9 Environmental and other parameters [Go to Page]
9.1 General
9.2 Pressure
9.3 Movement of surrounding air
9.4 Ambient temperatures [Go to Page]
9.4.1 General
9.4.2 Ambient temperature for axle counter evaluator equipment
9.4.3 Ambient temperature for ACD (without axle counter sensor)
9.4.4 Ambient temperature for axle counter sensor
9.5 Humidity
9.6 Precipitation
9.7 Protection Level (IP) [Go to Page]
9.7.1 General
9.7.2 For components on the rail
9.7.3 Components on the track / near the track
9.8 Solar radiation
9.9 Overvoltage protection (incl. indirect lightning effects)
9.10 ContaminationPollution [Go to Page]
9.10.1 General
9.10.2 In the track, nearby the track
9.10.3 Indoor
9.11 Fire protection
9.12 Vibrations / shock
9.13 EMC [Go to Page]
9.13.1 General
9.13.2 Requirement and validation for EMC
9.14 Definition of Influence from other components
Annex A (informative) Design guide for measurement antennas [Go to Page]
A.1 Measurement antennas characteristics
A.2 Termination impedance
Annex B (normative) Frequency management (reproduced from ERA/ERTMS/033281)
Annex C (normative) Test equipment, test methodologies and reports to be performed [Go to Page]
C.1 Test equipment [Go to Page]
C.1.1 Antenna for generating magnetic fields (FGA)
C.1.2 Reference antenna
C.1.3 Test signal generator
C.2 Test conditions [Go to Page]
C.2.1 Equipment under test (EUT)
C.2.2 Susceptibility criteria
C.3 Accuracy of magnetic field measurement
C.4 Test methodology to determine immunity (susceptibility border of ACD) to homogenous fields – in-band [Go to Page]
C.4.1 General
C.4.2 Test set up for X-Z direction
C.4.3 Test set up for Y-Z direction
C.4.4 Test procedure to determine immunity to homogenous steady-state fields
C.4.5 Transient immunity test / Immunity to intermittent interference [Go to Page]
C.4.5.1 General
C.4.5.2 Immunity to a single transient
C.4.5.3 Immunity to multiple transients
C.4.6 Immunity within the filter bandwidth of the EUT
C.5 Test methodology to determine immunity to inhomogeneous fields – in band [Go to Page]
C.5.1 General
C.5.2 Test set-up for the movement in X-direction
C.5.3 Test set-up for the movement in Y-direction
C.5.4 Test procedure
C.6 Test methodology for establishing immunity to fields produced by in-band interference currents in the rail [Go to Page]
C.6.1 General
C.6.2 Test set-up
C.6.3 Test procedure
C.7 Test methodology for out of-band measurements
C.8 Immunity to ETCS telepowering fields [Go to Page]
C.8.1 General
C.8.2 Limits and requirements
C.8.3 Test methodology to check immunity to ETCS telepowering fields [Go to Page]
C.8.3.1 General
C.8.3.2 Set up for testing Zone A
C.8.3.3 Set up for testing Zone B
C.8.3.4 Set up for testing Zone C
C.9 Test report
C.10 Test results according to ERA/ERTMS/033281 [Go to Page]
C.10.1 General
C.10.2 In-band
C.10.3 Out-of-band (10 kHz to 1,3 MHz)
Annex D (informative)Intermodulation effects [Go to Page]
D.1 General
D.2 Intermodulation impact on immunity limits (hypothesis)
Annex ZZ (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2016/797 aimed to be covered [Go to Page]

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23/30469102 DC BS EN 50617-2. Railway applications. Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 2. Axle counters, 2023

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please select your company type below: