# Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the rolling stock subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Directive 96/48/EC (notified under document number C(2002) 1952) (Text with EEA relevance) (2002/735/EC), Appendix ANNEX P: LINE VOLTAGE

Extent: E+W+S+N.I.

The characteristics of the main traction voltage systems (with the exception of over-voltages) are described in detail in the following table:
Nominal voltages and their acceptable limits in value and in duration.
The duration of voltages between U min1 and U min2 shall not exceed two minutes.
The duration of voltages between U max1 and U max2 shall not exceed five minutes.
Electrification system
Lowest non-permanent voltage
Lowest permanent voltage
Nominal voltage
Highest permanent voltage
Highest non-permanent voltage
U min2(V)
U min1(V)
U n(V)
U max1(V)
U max2(V)
DC
(mean values)
400
400
600
720
800
400
500
750
900
1 000
1 000
1 000
1 500
1 800
1 950
2 000
2 000
3 000
3 600
3 900
AC
(effective values)
11 000
12 000
15 000
17 250
18 000
17 500
19 000
25 000
27 500
29 000
The voltage of the collection bar in the substation including the line circuit breakers shall not exceed U max1,
voltages, in normal operating conditions, have to stay in the range between U min1 and U max2,
when operating conditions are interrupted, voltages in the range U min1 to U min2 are acceptable.
Relationship U max1/U max2
Every occurrence of U max2 must be followed by a level not exceeding U max1 for an indefinite duration.
Lowest tension of service
When the operating conditions are interrupted, U max2 will be the lower voltage limit for the air breakers when trainsets can run.
Note:
Values recommended for under-voltage tripping.
The under-voltage breakers with fixed or adjustable trips can be adjusted for values between 85 % and 95 % of U min2.

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Source: https://www.legislation.gov.uk/eudn/2002/735/annex/annex/P (the official version)
Page: https://openlegislation.uk/eu-decision-2002-735/annex/annex-P
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.