IEC 62505-2:2016

IEC 62505-2 ®
Edition 2.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Fixed installations – Particular requirements for AC
switchgear –
Part 2: Disconnectors, earthing switches and switches with nominal voltage
above 1 kV
Applications ferroviaires – Installations fixes – Exigences particulières pour
appareillage à courant alternatif –
Partie 2: Sectionneurs, sectionneurs de terre et commutateurs avec tension
nominale supérieure à 1 kV
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IEC 62505-2 ®
Edition 2.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Fixed installations – Particular requirements for AC

switchgear –
Part 2: Disconnectors, earthing switches and switches with nominal voltage

above 1 kV
Applications ferroviaires – Installations fixes – Exigences particulières pour

appareillage à courant alternatif –

Partie 2: Sectionneurs, sectionneurs de terre et commutateurs avec tension

nominale supérieure à 1 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060 ISBN 978-2-8322-3151-7

– 2 – IEC 62505-2:2016  IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
4 Normal and special service conditions [2] . 8
5 Rating [4] . 8
5.1 General . 8
5.2 Nominal voltage (U ) . 9
n
5.3 Rated voltage (U ) [4.1] . 9
Ne
5.4 Insulation coordination . 9
5.4.1 General . 9
5.4.2 Rated insulation level [4.2] . 9
5.5 Rated frequency [4.3] . 10
5.6 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) [4.8] . 10
a
5.7 Rated making and breaking current . 11
5.8 Rated values for mechanical endurance [102: 4.106] . 11
6 Design and construction [5] . 11
6.1 General . 11
6.2 Combined switching devices . 12
7 Type tests [6] . 12
7.1 General . 12
7.2 Dielectric tests [6.2] . 12
7.3 Electromagnetic compatibility tests (EMC) [6.9] . 12
7.4 Making and breaking tests [6.101] . 13
7.5 Operating and mechanical endurance test [6.102] . 13
7.5.1 General . 13
7.5.2 Endurance tests of combined switching devices . 13
8 Routine tests [7] . 13
9 Guide to the selection of switching devices for service [8] . 14
10 Information to be given with enquiries, tenders and orders [9] . 14
11 Rules for transport, storage, installation, operation and maintenance [10] . 14
12 Safety [11] . 14
13 Influence of the product on the environment [12] . 14
Bibliography . 15

Table 1 – Nominal voltages (U ), rated impulse voltages (U ) and short-duration
n Ni
power-frequency withstand voltage (U ) for circuits connected to the contact line . 10
d
Table 2 – Mechanical endurance classes and recommended use . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS – FIXED INSTALLATIONS –
PARTICULAR REQUIREMENTS FOR AC SWITCHGEAR –

Part 2: Disconnectors, earthing switches and
switches with nominal voltage above 1 kV

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62505-2 has been prepared by IEC technical committee 9:
Electrical equipment and systems for railways.
This standard is based on EN 50152-2.
This second edition cancels and replaces the first edition issued in 2009. It constitutes a
technical revision.
The main technical changes with regard to the previous edition are as follows:
This standard was revised to reflect the latest versions of standards referenced and to remove
text already included in the IEC 62271 series. The scope was extended to include single-
phase and two-phase devices. Definitions were added to provide the necessary precision and
to meet the needs of railway applications. Table 1 was reworked according to the changes of

– 4 – IEC 62505-2:2016  IEC 2016
IEC 62497-1:2010, Table A.2 and Table B.1. Table 2 ‘Coordination table of rated values for
devices’ of the previous version was removed. Ratings previously given under the clause ‘type
tests’ were moved to the new Table 2 ‘Mechanical endurance classes and recommended use’.
Requirements for combined equipment were added to provide guidance if components of
different manufacturers are used in one switching device.
The text of this standard is based on the following documents:
FDIS Report on voting
9/2098/FDIS 9/2134/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62505 series, under the general title Railway applications – Fixed
installations – Particular requirements for a.c. switchgear, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
The IEC 62505 series under the generic title Railway applications – Fixed installations –
Particular requirements for a.c. switchgear, is divided as follows:
Part 1: Circuit-breakers with nominal voltage above 1 kV.
Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV.
Part 3-1: Measurement, control and protection devices for specific use in a.c. traction
systems – Application guide.
Part 3-2: Measurement, control and protection devices for specific use in a.c. traction
systems – Single-phase current transformers.
Part 3-3: Measurement, control and protection devices for specific use in a.c. traction
systems – Single-phase inductive voltage transformers.
IEC 62505-2 has to be used in conjunction with IEC 62271-1:2007, IEC 62271-102:2001 and
its Amendment 1:2011 and/or IEC 62271-103:2011, depending on the equipment involved.
References in subclauses of IEC 62271-1, IEC 62271-102 and IEC 62271-103 need to be
replaced by references to applicable subclauses in this standard as far as reasonably
possible. References in subclauses in IEC 62271-102 need to be to IEC 62271-1 instead of
IEC 60694.
Where a particular clause of IEC 62271-1, IEC 62271-102 or IEC 62271-103 is not mentioned
in this standard, that clause applies as far as reasonable. Where requirements relate
exclusively to three-phase systems or to voltages outside those in use in traction systems,
they are not applicable. Where this standard states "addition" or "replacement", the relevant
text of IEC 62271-1, IEC 62271-102 and IEC 62271-103 needs to be adapted accordingly.
When a clause is named applicable to both IEC 62271-102 or IEC 62271-103, then reference
needs to be made only to the standard appropriate for the respective switching device.
The numbering of clauses in IEC 62271 series is not used in this Standard. The numbering in
square brackets refers to the numbering of clauses in IEC 62271 series. References specific
to numbering of clauses in IEC 62271-102 have the prefix ‘102.' and specific to IEC 62271-
103 have the prefix ‘103.’.
Where terms defined in IEC 62271 series conflict with definitions of the same terms as given
in IEC 60050-811:1991, or the other railway applications documents listed in the normative
references, the definitions in IEC 62271-1, IEC 62271-102 and IEC 62271-103 need to be
used.
NOTE 1 The clause numbering in IEC 62271-102 and IEC 62271-103 is the same as in IEC 62271-1. Additional
requirements specific to the type of switching device start with subclause numbers from 100.
NOTE 2 The suffix N which appears in this Standard for rated values is not used in IEC 62271 series.

– 6 – IEC 62505-2:2016  IEC 2016
RAILWAY APPLICATIONS – FIXED INSTALLATIONS –
PARTICULAR REQUIREMENTS FOR AC SWITCHGEAR –

Part 2: Disconnectors, earthing switches and
switches with nominal voltage above 1 kV

1 Scope
This part of IEC 62505 is applicable to single-pole, two-pole and three-pole alternating current
(a.c.) disconnectors, earthing switches and switches which are:
• designed for indoor or outdoor fixed installations in tractions systems, and
• operated with an a.c. line voltage and frequency as specified in IEC 60850.
NOTE 1 IEC 60850 specifies the a.c. traction systems:
15 kV 16,7 Hz,
12 kV 25 Hz,
12,5 kV, 20 kV also 25 kV with 50 Hz, and
12,5 kV, 20 kV, 25 kV also 50 kV with 60 Hz.
NOTE 2 As rails of a.c. traction systems are typically connected to earth and included in the return current path,
all phase-to-earth voltages will be within the tolerances as specified in IEC 60850. Nevertheless, phase-to-phase
voltages are sometimes higher, e.g. in autotransformer systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60850:2014, Railway applications – Supply voltages of traction systems
IEC 62236-5:2008, Railway applications – Electromagnetic compatibility – Part 5: Emission
and immunity of fixed power supply installations and apparatus
IEC 62271-1:2007, High-voltage switchgear and controlgear – Part 1: Common specifications
NOTE IEC 62271-1 A1:2011 is not referenced. It refers to voltage levels beyond those used in railway systems.
IEC 62271-102:2001, High-voltage switchgear and controlgear – Part 102: Alternating current
disconnectors and earthing switches
Amendment 1:2011
NOTE IEC 62271-102 A2:2013 is not referenced. It refers to voltage levels beyond those used in railway systems.
IEC 62271-103:2011, High-voltage switchgear and controlgear – Part 103: Switches for rated
voltages above 1 kV up to and including 52 kV
IEC 62497-1:2010, Railway applications – Insulation co-ordination – Part 1: Basic
requirements – Clearances and creepage distances for all electrical and electronic equipment
Amendment 1:2013
IEC 62498-2:2010, Railway applications – Environmental conditions for equipment – Part 2:
Fixed electrical installations
IEC 62505-1:2016, Railway applications – Fixed installations – Particular requirements for a.c.
switchgear – Part 1: Circuit breakers with nominal voltage above 1 kV
3 Terms and definitions
For the purposes of this document, the terms and definitions given IEC 62271-1:2007,
IEC 62271-102:2001 and IEC 62271-103:2011 as well as the following apply.
NOTE The index of definitions is the same as in 3.8 of IEC 62271-103:2011, but amended according to the
definitions below and those of IEC 62271-102:2001, Clause 3.
3.1
switching device
general term covering disconnectors, earthing switches and switches
Note 1 to entry: This definition of ‘switching device’ is limited to this standard. It is possible that there are
different or more comprising uses in other parts of the IEC 62505 and IEC 62271 series (e.g. in IEC 62271-1,
3.1.1).
3.2
single-pole switching device
switching device with one electrically separated conducting path for the main circuit suitable
for use in a single phase circuit
3.3
two-pole switching device
switching device with two independent electrically separated conducting paths for the main
circuit
Note 1 to entry: In some cases, the two paths are connected in series for use in a single-phase circuit where the
establishment of the two paths is simultaneous.
Note 2 to entry: This device allows to interrupt or establish simultaneously a single-phase circuit in two different
points.
3.4
three-pole switching device
switching device with three independent electrically separated conducting paths for the main
circuit
Note 1 to entry: Three-pole switching devices allow to simultaneously disconnect phase and earth connections in
AT systems.
3.5
combined switching device
switching device where the main circuit of the switching device, the operating link and
operating drive may be used in combination with those from different manufacturers
Note 1 to entry: This is common practice in some countries especially for mast switches.
3.6
nominal voltage
U
n
suitable approximate voltage value used to designate or identify a given supply system
Note 1 to entry: This value is also assigned to the switching device to show its usability in the supply system.
Note 2 to entry: An AT-System which is supplied with 2 phases, having a phase shift of 180° between them, is
commonly named 2 × U according to the U supplied to the catenary system.
n n
– 8 – IEC 62505-2:2016  IEC 2016
[SOURCE: IEC 62497-1:2010, 3.4.1]
3.7
rated voltage
U
ne
value of voltage assigned by the manufacturer to the equipment or part of it and to which
operating and performance characteristics are referred
Note 1 to entry: This value is also used to determine its dielectric characteristics and will be used instead of the
rated insulation voltage (U ) as defined and used in IEC 62497-1.
Nm
Note 2 to entry: The abbreviation Ur is not used for railway switching devices.
[SOURCE: IEC 62497-1:2010, 3.4.3, modified: "to a component, device or equipment"
replaced by "equipment or part of it"]
3.8
Over Voltage category
OV
classification of the circuit protection against internal and external overvoltages
3.9
Pollution Degree
PD
classification of the pollution to be considered due to the micro climate
3.10
line
general term covering the catenary and bare feeder conductors in fixed installations
Note 1 to entry: This definition is added, as line is understood in most cases as HV transmission line.
4 Normal and special service conditions [2]
Clause 2 of IEC 62271-1:2007 is applicable except as follows:
The preferred values of minimum ambient air temperature under normal service conditions for
indoor switching devices are –5 °C, –15 °C and –25 °C.
NOTE 1 These values are the same as in IEC 62271-1.
The typical value for indoor switching devices is –5 °C. Nevertheless it needs to be
considered that more severe conditions could occur in rare cases and equipment design is
most likely similar to outdoor equipment.
For special service conditions, agreement shall be made between purchaser and supplier.
IEC 62498-2:2010 should be taken as guidance to select appropriate classifications.
NOTE 2 The altitude reference of IEC 62497-1 (up to 2 000 m) applies to insulation coordination only and is not
considered in this standard.
5 Rating [4]
5.1 General
Clause 4 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as follows:

5.2 Nominal voltage (U )
n
The standard voltages of nominal voltages U shall be one of the voltages listed in Table 1 or
n
Table B.1 of IEC 60850:2014.
5.3 Rated voltage (U ) [4.1]
Ne
Subclause 4.1 of IEC 62271-1:2007 is replaced by the following:
The rated voltage U shall be chosen taking into consideration the maximum voltage level
Ne
suitable to be permanently applied to the switching device (i.e. highest permanent voltage
U as defined in IEC 60850:2014).
max1
The value of U shall be used whenever IEC 62271-1:2007, IEC 62271-102:2001 or
Ne
IEC 62271-103:2011 reference to U unless another value is named explicitly.
r
NOTE 1 The insulation characteristics determined by applying U are expected to be suitable to allow the
max1
highest non-permanent voltage U taken from IEC 60850.
max2
NOTE 2 The rated voltage for fixed installations in railway applications is a phase-to-earth value.
5.4 Insulation coordination
5.4.1 General
Insulation coordination shall be conducted according to IEC 62497-1:2010, e.g. selection of
values for overvoltage category (OV) and pollution degree (PD).
The rated voltage U shall be used when IEC 62497-1:2010 refers to the rated insulation
Ne
voltage U .
Nm
The definition of the four overvoltage categories shall be as in IEC 62497-1:2010, 4.2.3.2.
The definition of the seven pollution degrees shall be as in IEC 62497-1:2010, 4.4 and
Table A.4.
5.4.2 Rated insulation level [4.2]
Subclause 4.2 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as
follows:
The values of the rated impulse withstand voltage U and of the power-frequency withstand
Ni
voltage U shall be as given in Table 1, taken from the values listed in IEC 62497-1:2010.
d
– 10 – IEC 62505-2:2016  IEC 2016
Table 1 – Nominal voltages (U ), rated impulse voltages (U ) and short-duration power-
n Ni
frequency withstand voltage (U ) for circuits connected to the contact line
d
Common value Across the isolating
distance
U U OV U U U U
n Ne Ni d Ni d
kV kV kV kV kV kV
IEC 60850: IEC 62497-1:2010 IEC 62271-1:2007
2014 Table B.1 Table 1a
a b c
3 95 38 110 50
17,25
4 125 50 145 60
a
3 145 70 165 80
d
17,25
b c
4 170 70 195 95
3 125 50 145 60
e e
20 24
c c c c
4 150 50 175 60
b f f
3 170 70 200 95
27,5
g c
4 200 95 220 110
g c
3 200 95 220 110
d
27,5
25 4 250 95 290 110
b
3 170 70 195 80
e
c c c
4 200 70 230 80
e, h
30 4 325 140 375 160
NOTE The rated short-duration power-frequency withstand voltage is represented by U as used in
d
IEC 62271-1 not by U as used in IEC 62497- 1. U is used in IEC 62271-1 for the rated auxiliary voltage.
a a
a
Not commonly used.
b
Values taken from Table 1a of IEC 62271-1:2007 as being well-established practice.
c
Values taken from experience and being well-established practice.
d
For higher requirements on insulation system.
This is common practice in some countries with larger number of installations at altitude up to 2 000 m
without additionally applying an altitude correction factor.
e
Values taken from Table B.1 of IEC 60850:2014.
f
Values taken from Table B.1 of IEC 62497-1:2010.
g
Values taken from Table 1b of IEC 62271-1:2007 as being well-established practice.
h
For higher requirements on insulation in systems with a phase shift of 180°.
Increased test voltages could be favourable for these terminals (e. g. between phases of an AT-system with
U = 25 kV).
n
All test voltages for dielectric tests on the main circuit shall be taken from Table 1.
5.5 Rated frequency [4.3]
Subclause 4.3 of IEC 62271-1:2007 is applicable.
5.6 Rated supply voltage of closing and opening devices and of auxiliary and control
circuits (U ) [4.8]
a
Subclause 4.8 of IEC 62271-1:2007 is applicable with the following addition.
The relative tolerance as specified in 4.8.3 of IEC 62271-1:2007 does not apply to a.c. power
supplies fed from a transformer connected to the traction line voltage. This tolerance shall be
agreed upon between purchaser and supplier.

NOTE In this case the relative tolerance of 4.8.3 of IEC 62271-1 will not be sufficient due to the high fluctuation of
the traction line voltage.
5.7 Rated making and breaking current
Subclauses 4.101 of IEC 62271-102:2001 is applicable for earthing switches.
Subclauses 4.101 to 4.115 of IEC 62271-103:2011 are applicable for switches except as
follows.
A switch shall be classified either general purpose switch, limited purpose switch or special
purpose switch according to the requirements of 4.113 to 4.115 of IEC 62271-103:2011.
Switch-disconnectors shall comply with the requirements for switches and also for
disconnectors.
It is recommended that the rated capacitive line charging current and the rated capacitive
cable charging current do not exceed 2 A for 16,7 Hz and 10 A for 50 Hz.
NOTE Such capacitive current equals a circuit of around 2,5 km of typical cable or 100 km of typical line.
When breaking of higher capacitive currents is required, switches shall be suitable to switch a
capacitor bank. Rated capacitive switching currents shall be agreed between purchaser and
supplier.
5.8 Rated values for mechanical endurance [102: 4.106]
Subclause 4.106 of IEC 62271-102:2001 is applicable for all switching devices except as
follows.
Values for mechanical endurance classes of switching devices shall be as given in Table 2:
Table 2 – Mechanical endurance classes and recommended use
Mechanical endurance class Operating cycles Recommended for
Class 1 1 000 earthing switches
Class 2 3 000 disconnectors
Class 2A 5 000 disconnectors for use
with circuit breakers of class 2
Class 3 10 000 switches
NOTE Each operating cycle consists of one OPEN and one CLOSE operation.

Where switches are operated at every train passing, higher values may be agreed between
purchaser and supplier
6 Design and construction [5]
6.1 General
Clause 5 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable, except as follows:
For switches with a breaking medium like gas, the effective pressure of this gas at 20 °C shall
5 5
not exceed 6 × 10 Pa (added on the atmospheric pressure of 10 Pa).

– 12 – IEC 62505-2:2016  IEC 2016
All creepage distances in air shall be based on the rated insulation voltage U and
Nm
determined according to IEC 62497-1:2010, Clause 4.
EMC emission and immunity levels shall be taken from IEC 62236-5:2008.
The abbreviation of the rated voltage on nameplates shall be U as defined in this standard.
Ne
6.2 Combined switching devices
The manufacturer of combined switching devices or their components shall state:
• for the main circuit: the maximum operating force and related travel required to operate
the device;
• for the operating link: the maximum force it can transfer;
• for operating drives: the minimum operating force and related travel provided by the drive.
The manufacturer of a component shall state the operating conditions which are covered by
these data, e.g. thickness of ice coating and contact opening or closing.
The party responsible for installation of an operating link shall consider the maximum force
required to operate the link the maximum length and number of intermediate supports
required, and the maximum loss of travel within the link.
Combined switching device are typically push-pull operated, therefore force and travel are
named. If the combined switching device uses a rotational operation then the torque shall be
provided instead of the force and the rotational angle instead of the travel.
When selecting components for a combined switching device the possible operating
conditions of the specific application need to be considered, e.g.
• environmental conditions, particularly ice conditions;
• physical arrangement of the individual components and distance between them;
• wear over the life time.
NOTE Due to the large number of installation conditions and combinations it is not possible to provide a fixed
guidance.
7 Type tests [6]
7.1 General
Clause 6 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as follows.
7.2 Dielectric tests [6.2]
Subclause 6.2 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as
follows:
For dielectric tests the values given in Table 1 shall apply.
7.3 Electromagnetic compatibility tests (EMC) [6.9]
Subclause 6.9 of IEC 62271-1:2007 is applicable except as follows:
Emission and immunity levels shall be taken from IEC 62236-5:2008.

7.4 Making and breaking tests [6.101]
Subclause 6.101 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as
follows:
These tests shall be performed at rated voltage U and rated frequency f .
Ne r
The resulting making and breaking currents shall be tested in accordance with the
requirements of IEC 62505-1:2016.
7.5 Operating and mechanical endurance test [6.102]
7.5.1 General
Subclause 6.102 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as
follows:
The mechanical endurance test shall consist of operating cycles as assigned to the switching
device and as given in Table 2.
Subclause 6.102.5 of IEC 62271-102:2001 is applicable also for earthing switches assigned
class 2 or class 3.
7.5.2 Endurance tests of combined switching devices
The requirements for mechanical endurance tests and extended mechanical endurance tests
of 6.102 of IEC 62271-102:2001 and IEC 62271-103:2011 are amended by the following:
The endurance test, mechanical endurance and extended mechanical endurance, of
combined switching devices shall be performed on a typical combination. Components shall
be tested at least in one typical combination.
If applicable the majority of operations of the endurance test shall be carried out with that pair
of force and travel of the operating drive providing the highest product of travel multiplied by
force. Each series of 1 000 operations shall include a minimum of 100 operations for each
pair of force and travel combination being specified.
The number of operating cycles at the specified minimum supply voltage and/or minimum
pressure of compressed gas supply shall be shared equally if more than one pair of force and
travel combination is specified. There shall be a minimum of 20 operations for each pair.
NOTE In most cases operators and manufacturers have agreed upon one specific travel for their combined
switching devices.
8 Routine tests [7]
Clause 7 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as follows:
Voltage reference in dielectric tests shall be made to the values given in Table 1.
NOTE 1 Subclauses 7.1 to 7.4 of IEC 62271-102 and of IEC 62271-103 only contain cross references to
IEC 62271-1.
NOTE 2 Subclause 7.101 of IEC 62271-102 requires an on-site mechanical operations test for equipment having
routine tests on separate components only. For the number of operating cycles it references 6.102.3.2 of
IEC 62271-102. This conforms to the requirement of on-site routine tests for disconnectors used in overhead
catenary systems according to 8.12 of IEC 60913.

– 14 – IEC 62505-2:2016  IEC 2016
9 Guide to the selection of switching devices for service [8]
Clause 8 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable except as follows:
Definitions and ratings of this standard prevail.
10 Information to be given with enquiries, tenders and orders [9]
Clause 9 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable.
11 Rules for transport, storage, installation, operation and maintenance [10]
Clause 10 of IEC 62271-102:2001 and IEC 62271-103:2011 is applicable.
12 Safety [11]
Clause 11 of IEC 62271-1:2007 is applicable.
13 Influence of the product on the environment [12]
Clause 12 of IEC 62271-1:2007 is applicable.

Bibliography
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magnetic devices
IEC 60050-441, International Electrotechnical Vocabulary (IEV) – Chapter 441: Switchgear,
controlgear and fuses
IEC 60050-447, International Electrotechnical Vocabulary – Part 447: Measuring relays
IEC 60050-604, International Electrotechnical Vocabulary (IEV) – Chapter 604: Generation,
transmission and distribution of electricity – Operation
IEC 60050-605, International Electrotechnical Vocabulary (IEV) – Chapter 605: Generation,
transmission and distribution of electricity – Substations
IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
requirements
IEC 60085, Electrical insulation – Thermal evaluation and designation
IEC 60137, Insulated bushings for alternating voltages above 1 000 V
IEC 60270, High-voltage test techniques – Partial discharge measurements
IEC 60296, Fluids for electrotechnical applications – Unused mineral insulating oils for
transformers and switchgear
IEC 60376, Specification of technical grade sulfur hexafluoride (SF6) for use in electrical
equipment
IEC 60913:2013, Railway applications – Fixed installations – Electric traction overhead
contact lines
IEC 61000 (all parts), Electromagnetic compatibility (EMC)
IEC 61869-2:2012, Instrument transformers – Part 2: Additional requirements for current
transformers
IEC 62128-1, Railway applications – Fixed installations – Electrical safety, earthing and the
return circuit – Part 1: Protective provisions against electric shock
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IEC 62271-100:2008, High-voltage switchgear and controlgear – Part 100: Alternating current
circuit-breakers
IEC 62271-106, High-voltage switchgear and controlgear – Part 106: Alternating current
contactors, contactor-based controllers and motor-starters
IEC 62271-200, High-voltage switchgear and controlgear – Part 200: A.C. metal-enclosed
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availability, maintainability and safety (RAMS)

– 16 – IEC 62505-2:2016  IEC 2016
IEC 62497-2, Railway applications – Insulation co-ordination – Part 2: Overvoltages and
related protections
___________
– 18 – IEC 62505-2:2016  IEC 2016
SOMMAIRE
AVANT-PROPOS . 19
INTRODUCTION . 21
1 Domaine d'application . 22
2 Références normatives . 22
3 Termes et définitions . 23
4 Conditions normales et spéciales de service [2] . 24
5 Valeur assignée [4] . 25
5.1 Généralités . 25
5.2 Tension nominale (U ) . 25
n
5.3 Tension assignée (U ) [4.1] . 25
Ne
5.4 Coordination de l'isolement . 25
5.4.1 Généralités . 25
5.4.2 Niveau d'isolement assigné [4.2] . 25
5.5 Fréquence assignée [4.3] . 26
5.6 Tension assignée d'alimentation des dispositifs de fermeture et d'ouverture
et des circuits auxiliaires et de commande (U ) [4.8] . 27
a
5.7 Courant assigné de fermeture et de coupure . 27
5.8 Valeurs assignées pour l'endurance mécanique [102: 4.106] . 27
6 Conception et construction [5] . 28
6.1 Généralités . 28
6.2 Appareils de connexion combinés . 28
7 Essais de type [6] . 28
7.1 Généralités .
...