Scope
EN 15302
Railway Wheelset Equivalent Conicity Measurement
This test method defines procedures for determining the equivalent conicity of railway wheelsets, a critical geometric parameter that affects vehicle stability, curving behavior, and wear characteristics. Equivalent conicity influences hunting oscillations, lateral forces, and noise generation during operation. The measurement is essential for railway manufacturers, maintainers, and operators to ensure safe and economical wheelset performance across different track geometries. Accreditation ensures consistent, reproducible measurements that support compliance with European interoperability standards and informed maintenance decisions.
What it measures
- Equivalent conicity value of wheelset profiles
- Wheel profile geometry and wear patterns
- Contact angle and friction coefficient relationships
- Stability margin and hunting potential
- Comparative conicity values for different operating conditions
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DIN EN 13715
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BS EN 13715
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NF EN 13715
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UNI EN 13715
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UNE EN 13715
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NEN EN 13715
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DIN EN 13296
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BS EN 13296
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NF EN 13296
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UNI EN 13296
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UNE EN 13296
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NEN EN 13296
1,399
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length bars) – See Note 5
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DIN EN 12209
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Uniper Technologies
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DIN EN 13284-1
BS EN ISO 23210:2009
requirements of BS EN 14181:2014
IEC 60519-11
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DIN EN 12667
ISO 8301
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(HSG 248) – 2021
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WSP UK
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(HSG 248) – 2021
AFC based on HSG 248
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ISO 21528-2
BS ISO 4832:2006
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BS 1377-2:2022
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DIN EN 12046-2
DIN EN 12094-8
DIN EN 949
BS 6375-2:2009
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N008-1 based on BS EN
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N011 based on BS 4401-9:1975 and BS 770-
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