IEC 61992-1:2006

IEC 61992-1 ®
Edition 2.1 2014-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Railway applications – Fixed installations – DC switchgear –
Part 1: General
Applications ferroviaires – Installations fixes – Appareillage à courant continu –
Partie 1: Généralités
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IEC 61992-1 ®
Edition 2.1 2014-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Railway applications – Fixed installations – DC switchgear –

Part 1: General
Applications ferroviaires – Installations fixes – Appareillage à courant continu –

Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060 ISBN 978-2-8322-1552-4

IEC 61992-1 ®
Edition 2.1 2014-04
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Railway applications – Fixed installations – DC switchgear –
Part 1: General
Applications ferroviaires – Installations fixes – Appareillage à courant continu –
Partie 1: Généralités
– 2 – IEC 61992-1:2006
+AMD 1:2014 CSV  IEC 2014
CONTENTS
FOREWORD . 4

1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
3.1 General terms. 7
3.2 Performance characteristics . 10
3.3 Components . 15
3.4 Terms relating to d.c. circuit-breakers, switch-disconnectors and associated
relays . 20
4 Service conditions and requirements . 24
4.1 Environmental conditions . 24
4.2 Insulation levels . 24
5 Standard features and conventional assumptions . 26
5.1 Standard features and conventional parameters for the main circuit . 26
5.2 Standard features for auxiliary and control circuits . 27
6 Temperature-rise limits . 28
7 Tests . 29
7.1 General . 29
7.2 Test tolerances . 30
7.3 Tests on movable devices . 30
7.4 Temperature-rise test . 32
7.5 Dielectric tests . 33
7.6 Short-circuit and load-switching conditions . 34
7.7 Verification of the behaviour during short-time withstand current test . 36
7.8 Verification of the manual control device for sturdiness and position indicator
reliability . 36

Annex A (normative) Diagrams for tests . 38
Annex B (normative)  Environmental conditions for indoor installations . 40
Annex C (normative) Search of critical currents for d.c. circuit-breakers and switches . 43
Annex D (informative) Recommended creepage distances . 45
Annex E (informative) Determination of maximum energy fault location . 46

Bibliography . 49

Figure A.1 – Diagram of the test circuit for checking the making and breaking capacities

in short-circuit and load/overload switching conditions . 38
Figure A.2 – Typical calibrations and interruption under short-circuit and load/overload
switching conditions (two different cases of calibration are represented) (see 7.6) . 39
Figure E.1 – Equivalent circuit of a d.c. traction system . 48
Figure E.2 – Ratio of I /I to T /T . 48
maxE ss s c
+AMD 1:2014 CSV  IEC 2014
Table 1 – Insulation levels . 25
Table 2 – Test circuit parameters for maximum circuit energy . 26
Table 3 – Preferred voltages for auxiliary and control circuits [V] . 27
Table 4 – Temperature-rise limits for insulated coils . 28
Table 5 – Temperature-rise limits for various components . 29
Table 6 – Test tolerances . 30
Table 7 – Recommended quantities and dimensions of copper bars . 33
Table 8 – Values of forces or torques for the tests . 37
Table B.1 – Limits of sinusoidal vibrations . 41
Table D.1 – Material group identification . 45
Table D.2 – Recommended creepage distances, in mm/kV (base U ) . 45
Nm
– 4 – IEC 61992-1:2006
+AMD 1:2014 CSV  IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS –
FIXED INSTALLATIONS –
DC SWITCHGEAR –
Part 1: General
FOREWORD
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