IEC 62271-209:2007

IEC 62271-209
Edition 1.0 2007-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 209: Cable connections for gas-insulated metal-enclosed switchgear for
rated voltages above 52 kV – Fluid-filled and extruded insulation cables –
Fluid-filled and dry-type cable-terminations

Appareillage à haute tension –
Partie 209: Raccordement de câbles pour appareillage sous enveloppe
métallique à isolation gazeuse de tension assignée supérieure à 52 kV –
Câbles remplis d’un fluide ou à isolation extrudée – Extrémité de câble sèche
ou remplie d'un fluide
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IEC 62271-209
Edition 1.0 2007-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 209: Cable connections for gas-insulated metal-enclosed switchgear for
rated voltages above 52 kV – Fluid-filled and extruded insulation cables –
Fluid-filled and dry-type cable-terminations

Appareillage à haute tension –
Partie 209: Raccordement de câbles pour appareillage sous enveloppe
métallique à isolation gazeuse de tension assignée supérieure à 52 kV –
Câbles remplis d’un fluide ou à isolation extrudée – Extrémité de câble sèche
ou remplie d'un fluide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
P
CODE PRIX
ICS 29.130.10 ISBN 2-8318-9242-2

– 2 – 62271-209 © IEC:2007
CONTENTS
FOREWORD.3

1 Scope.5

2 Normative references .5

3 Terms and definitions .6

4 Limits of supply .7

4.1 General .7

4.2 Over-voltage protection .7
5 Rating .7
5.1 General .7
5.2 Rated voltage.7
5.3 Rated insulation level .8
5.4 Rated normal current and temperature rise.8
5.5 Rated short-time and peak withstand currents and rated duration of short
circuit .8
5.6 Rated filling pressure of insulating gas in the cable connection enclosure .8
6 Design and construction requirements.9
6.1 Pressure withstand requirements.9
6.2 Mechanical forces on cable-terminations .9
7 Standard dimensions .10
7.1 Fluid-filled cable-terminations.10
7.2 Dry-type cable-terminations.10
7.3 Three-phase cable-termination enclosure.10
8 Tests .10
8.1 General .10
8.2 Dielectric type tests of cable-terminations .11
8.2.1 General .11
8.2.2 Dielectric type test of cable-terminations in a single phase enclosure .11
8.2.3 Dielectric type test of cable-termination in a three phase enclosure .11
8.3 Tests after cable system installation.11
9 Information to be given with enquiries, tenders and orders .12
10 Rules for transport, storage, erection, operation and maintenance .12

Figure 1 – Operating pressure of the gas insulation in the cable connection enclosure .9
Figure 2 – Fluid-filled cable connection assembly – Typical arrangement.13
Figure 3 – Fluid-filled cable connection – Assembly dimensions .14
Figure 4 – Dry-type cable connection assembly – Typical arrangement.15
Figure 5 – Dry-type cable connection assembly – Assembly dimensions.16

62271-209 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 209: Cable connections for gas-insulated metal-enclosed

switchgear for rated voltages above 52 kV –

Fluid-filled and extruded insulation cables –

Fluid-filled and dry-type cable-terminations

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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 62271-209 has been prepared by subcommittee 17C: High-voltage
switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and
controlgear.
This first edition of IEC 62271-209 cancels and replaces the second edition of IEC/TS 60859
and constitutes a technical revision. The changes from IEC/TS 60859 are as follows:
– the minimum voltage rating was changed from “72,5 kV” to ”above 52 kV”;
– the current rating was increased to 3150 A;

– 4 – 62271-209 © IEC:2007
– simplifications and modifications of the dimension tables in Figure 2 and Figure 4 such as

diameters for 123 kV to 170 kV have been adopted in order to accommodate larger cable

cross-sections; new dimensions accept old terminations, new terminations may not meet

old GIS standards;
– the following dimensions have been deleted: l1, l3 as well as note 3 on Figure 4;

– in Figure 4, new dimensions have been adopted for the voltage range from 245 kV to

300 kV, interchangeability for 245 kV to 300 kV is not maintained due to reduction in GIS

cable termination housing;
– the lengths l7 and l8 have been modified;

– changes in the text in relation to minimum functional pressure for insulation p (Table 1
me
has been removed);
– the limit of 170 kV for 3-phase application was deleted (Subclause 5.2);
– Figure 5 was deleted.
The text of this standard is based on the following documents:
FDIS Report on voting
17C/405/FDIS 17C/412/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 the parts in the IEC 62271 series, under the general title High-voltage switchgear
and controlgear, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site 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.
62271-209 © IEC:2007 – 5 –
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 209: Cable connections for gas-insulated metal-enclosed

switchgear for rated voltages above 52 kV –

Fluid-filled and extruded insulation cables –

Fluid-filled and dry-type cable-terminations

1 Scope
This standard covers the connection assembly of fluid-filled and extruded cables to gas-
insulated metal enclosed switchgear (GIS), in single- or three-phase arrangements where the
cable-terminations are fluid-filled or dry type and there is a separating insulating barrier
between the cable insulation and the gas insulation of the switchgear.
The purpose of this standard is to establish electrical and mechanical interchangeability
between cable-terminations and the gas-insulated metal-enclosed switchgear and to
determine the limits of supply. It complements and amends, if necessary, the relevant IEC
standards. For the purpose of this standard the term "switchgear" is used for "gas-insulated
metal enclosed switchgear".
It does not cover directly immersed cable terminations, as described in CIGRE brochure 89.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60038:1983, IEC standard voltages
Amendment 1 (1994)
Amendment 2 (1997)
IEC 60141 (all parts), Tests on oil-filled and gas-pressure cables and their accessories
IEC 60141-1:1993, Tests on oil-filled and gas-pressure cables and their accessories – Part 1:

Oil-filled, paper-insulated, metal-sheathed cables and accessories for alternating voltages up
to and including 400 kV
IEC 60141-2:1963, Tests on oil-filled and gas-pressure cables and their accessories – Part 2:
Internal gas-pressure cables and accessories for alternating voltages up to 275 kV
IEC 60694:1996, Common specifications for high-voltage switchgear and controlgear
standards
IEC 60840:2004, Power cables with extruded insulation and their accessories for rated
voltages above 30 kV (U = 36 kV) up to 150 kV (U = 170 kV) – Test methods and
m m
requirements
—————————
There exists a consolidated version (2002) including Amendment 1 and 2.

– 6 – 62271-209 © IEC:2007
IEC 62067:2001, Power cables with extruded insulation and their accessories for rated
voltages above 150 kV (U = 170 kV) up to 500 kV (U = 550 kV) – Test methods and

m m
requirements
Amendment 1 (2006)
IEC 62271-203:2003, High-voltage switchgear and controlgear – Part 203: Gas-insulated

metal-enclosed switchgear for rated voltages above 52 kV

Report of CIGRE WG 23-10, ELECTRA 151, December 1993, Earthing of GIS – An

Application Guide
CIGRE brochure 89: Accessories for HV Extruded Cables, CIGRE WG 21.06, 1995, Chapter
2.1.5 Directly Immersed Metal Enclosed GIS Termination
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
cable-termination
equipment fitted to the end of a cable to ensure electrical connection with other parts of the
system and to maintain the insulation up to the point of connection. Two types are described
in this standard.
3.1.1
fluid-filled cable-termination
cable-termination which comprises of a separating insulating barrier between the cable
insulation and the gas insulation of switchgear. The cable-termination includes an insulating
fluid as part of the cable connection assembly.
3.1.2
dry-type cable-termination
cable-termination which comprises an elastomeric electrical stress control component in
intimate contact with a separating insulating barrier (insulator) between the cable insulation
and the gas insulation of the switchgear. The cable-termination does not require any
insulating fluid.
3.2
main-circuit end terminal
part of the main circuit of a gas-insulated metal enclosed switchgear forming part of the

connection interface
3.3
cable connection enclosure
part of the gas-insulated metal-enclosed switchgear which houses the cable-termination and
the main-circuit end terminal
3.4
cable connection assembly
combination of a cable-termination, a cable connection enclosure and a main-circuit end
terminal, which mechanically and electrically connects the cable to the gas-insulated metal
enclosed switchgear
3.5
design pressure
pressure used to determine the thickness of the enclosure and the components of the cable
termination subjected to that pressure (according to IEC 62271-203:2003)

62271-209 © IEC:2007 – 7 –
3.6
fluid/insulating fluid
the term "fluid" means a liquid or a gas for insulation purposes

3.7
cable system
a cable with installed accessories

4 Limits of supply
4.1 General
The limits of supply of gas-insulated metal-enclosed switchgear and the cable-termination
shall be in accordance with Figure 2 for fluid-filled cable terminations and Figure 4 for dry-
type cable-terminations.
4.2 Over-voltage protection
If a metallic earth connection between parts 6 or 11 and part 13 of Figure 2 for fluid-filled
cable terminations and Figure 4 for dry-type cable-terminations is not feasible, non-linear
resistors (part 15) may be connected across the insulated junction to limit the voltage under
transient conditions. The number and characteristics of the non-linear resistors shall be
determined and supplied by the cable termination manufacturer, taking into consideration the
requirements of the user and the switchgear manufacturer. For further details refer to report
of CIGRE WG 23-10: ELECTRA 151, 1993.
5 Rating
5.1 General
When dimensioning the cable connection assembly, the following rated values shall apply:
a) the rated voltage;
b) the number of phases in one enclosure;
c) the rated insulation level;
d) the rated normal current and temperature rise;
e) the rated short-time and peak withstand currents;
f) the rated duration of the short circuit.

5.2 Rated voltage
The rated voltage for the equipment (U ) of the cable connection is equal to the lowest of the
r
values for the cable and the gas-insulated metal-enclosed switchgear and shall be selected
from the following standard values:
72,5 kV – 100 kV – 123 kV – 145 kV – 170 kV – 245 kV – 300 kV – 362 kV – 420 kV – 550 kV
For cables, the rated voltage U corresponds to the highest voltage for equipment U .
r m
– 8 – 62271-209 © IEC:2007
5.3 Rated insulation level
The rated insulation level for the cable connection assembly shall be selected from the values

given in IEC 60038 (IEC standard voltages) as well as IEC 62271-203:2003.

5.4 Rated normal current and temperature rise

The connection interface of the main circuit shown in Figures 2 and 3 for fluid-filled cable-

terminations and Figures 4 and 5 for dry-type cable-terminations is applicable at rated normal

currents up to 3 150 A. The normal current-carrying contact surfaces of the connection

interface shall be silver- or copper-coated or solid copper.

For full interchangeability of the cable-termination, the connection interface shall be designed
so that at a current equal to the cable rated current corresponding to a maximum temperature
of 90 °C, no heat transfer from the GIS main circuit end terminal to the cable-termination will
occur.
NOTE As the maximum conductor temperature for cables is limited by the maximum operating temperature for the
insulation, there are certain cable dielectrics which cannot withstand the maximum temperature specified for gas-
insulated metal-enclosed switchgear if there is heat transfer across the connection interface to the cable
terminations.
For cases when the design value of 90 °C at rated normal current of the cable system cannot be achieved, the
manufacturer of the switchgear should provide the necessary data on temperature rise of the main-circuit end
terminal and of the insulating gas (SF ) as a function of current.
5.5 Rated short-time and peak withstand currents and rated duration of short circuit
Short-time and peak withstand currents as well as the duration of short circuit shall refer to
the levels provided by the cable system, not exceeding the values given in IEC 60694.
5.6 Rated filling pressure of insulating gas in the cable connection enclosure
If SF is used as the insulating gas, the minimum functional pressure for insulation p used
6 me
= 0,35 MPa
to determine the design of the cable-termination insulation shall not exceed p
me
(absolute) at 20 °C for maximum rated voltages up to 300 kV. For maximum rated voltages
exceeding 300 kV the minimum functional pressure for insulation p used to determine the
me
design of the cable-termination insulation shall not exceed p 0,4 MPa (absolute) at 20 °C.
me
The rated filling pressure p of gas for insulating is assigned by the switchgear manufacturer
re
but shall in no case be lower than p . If a gas other than SF is used, the minimum
me 6
functional pressure shall be chosen to give the same dielectric strength while being lower
than the maximum recommended operating pressure as per 6.1.

62271-209 © IEC:2007 – 9 –
Maximum operating pressure
0,85
Rated operating pressure p
re
p
0,35/0,40 me
(see NOTE)
IEC  1267/07
p rated filling pressure of gas for insulating (not lower than p )
re me
p minimal functional pressure for insulation
me
NOTE 0,35 MPa for voltages up to 300 kV
0,40 MPa for voltages exceeding 300 kV
Figure 1 ─ Operating pressure of the gas insulation in the cable connection enclosure
6 Design and construction requirements
6.1 Pressure withstand requirements
The design pressure (absolute) for the outside of the cable termination is 0,85 MPa at 20 °C.
The cable-termination shall be capable of withstanding the vacuum conditions when the cable
connection enclosure is evacuated as part of the gas filling process.
6.2 Mechanical forces on cable-terminations
The manufacturer of the cable-termination in a three-phase connection shall take into account
the total dynamic forces generated during short-circuit conditions. These forces consist of
those generated within the cable-termination and those coming from the main circuit of the
switchgear. The maximum additional force applied from the switchgear to the connection
interface (Figure 2 or 4) transversely and then being transferred from the main circuit end
terminal shall not exceed 5 kN. For single-phase connections, taking into account lack of
symmetry, it is considered that this additional force is small. However, a total mechanical
force of 2 kN applied to the connection interface transversely, should be assumed. It is the

responsibility of the manufacturer of the switchgear to ensure that the specified forces are not
exceeded.
For both single-phase and three-phase connections, additional forces and movements from
the switchgear can be experienced due to temperature variations and vibrations in service.
These forces can act on both switchgear and cable-termination and depend largely on the
switchgear layout, termination installation, cable design and the methods of mechanical
support. The design of any support structure shall take into account these forces and
movements. It is particularly important that the support for the switchgear shall not be affixed
to the insulator collar and/or clamping flange, parts 9 and 11 of Figure 2 or 4.

Pressure (Mpa)
– 10 – 62271-209 © IEC:2007
7 Standard dimensions
7.1 Fluid-filled cable-terminations

Standard dimensions for fluid-filled cable connection enclosures, main circuit end terminals

and cable-terminations applied to single-phase enclosures are shown in Figure 3. With the

given four standard sizes, the voltage range (U ) from 72,5 kV to 550 kV is covered.
r
7.2 Dry-type cable-terminations

Standard dimensions for dry-type cable-connection enclosures, main-circuit end terminals and
cable-terminations applied to single-phase enclosures are shown in Figure 5. The given four
standard sizes cover the voltage range (U ) from 72,5 kV to 550 kV. Figure 4 shows the two
r
types of dry-type cable-termination. Type A incorporates an elastomeric electrical stress
control component inside the insulating barrier. For type B, the elastomeric electrical stress
control component is located externally.
NOTE 1 In case the dry-type termination dimensions for 245 kV to 300 kV are in excess of those specified in
Figure 5, the termination may be fitted into the housing for fluid filled terminations of this voltage class. In this case
it is the cable termination manufacturer’s responsibility to meet the dimensions of the cable termination enclosure
for 245 kV to 300 kV as per Figure 3. It falls further within the responsibility of the cable termination manufacturer
to clearly notify all involved party about his intent to rely on the stipulations of this note.
NOTE 2 For a full interchangeability of both fluid-filled and dry-type cable-terminations, a suitable connection
interface extension, if required, should be supplied by the cable-termination manufacturer.
7.3 Three-phase cable-termination enclosure
The minimum dimensions of the 3-phase cable-termination enclosure are defined by the
minimum phase to phase distance arising out of d and the minimum phase to ground
distance arising out of d5/2.
8 Tests
8.1 General
The testing of the cable-termination and the gas-insulated metal-enclosed switchgear is to be
performed for cable-terminations in accordance with IEC 60141-1:1993 for oil-filled cables,
IEC 60141-2:1963 for gas-filled cables, IEC 60840:2004 or IEC 62067:2001 (and its
amendment 1:2006) for cables with extruded insulation, IEC 62271-203:2003 for switchgear.
In addition, this standard gives recommended arrangements for dielectric tests and for the
tests after cable installation.

In case the insulator for cable termination is pre-installed during GIS manufacturing, this
insulator is subject to the GIS routine tests specified in IEC 62271-203:2003.
As such the insulator shall be designed to withstand these routine tests. The GIS
manufacturer shall follow the handling and/or assembling instructions for test preparation
provided by the cable termination manufacturer.

62271-209 © IEC:2007 – 11 –
8.2 Dielectric type tests of cable-terminations

8.2.1 General
The dielectric type tests of the cable-termination fitted with a representative cable shall be

performed in an enclosure as per 8.2.2, filled with insulating gas at the pressure not

exceeding p +0,02 MPa as specified in 5.6. If a shield is an integral part of the cable-
me
termination design, it shall be mounted in its service position during the test.

An additional test shield may be used to screen the exposed connection interface, if required

by the cable-termination manufacturer, provided it does not overlap the connection interface

by more than the distance l in Figure 3 for fluid-filled cable-terminations and Figure 5 for dry-
type cable-terminations.
8.2.2 Dielectric type test of cable-terminations in a single phase enclosure
The cable-termination is surrounded by a metal cylinder connected to earth, the maximum
internal diameter is equal to d for the four standard sizes of cable connection enclosures (d
5 5
in Figure 3 for fluid-filled cable-terminations and Figure 5 for dry-type cable-terminations). The
minimum length of the metal cylinder shall be in accordance with the dimension l given in
Figures 3 and 5.
8.2.3 Dielectric type test of cable-termination in a three phase enclosure
The single phase test arrangement using the single phase cable termination enclosure from
the GIS covers the test requirements of the cable-termination in a three phase enclosure as it
imposes the most severe dielectric stress to the test object. It is therefore the referenced type
test arrangement.
8.3 Tests after cable system installation
If required by the user of the switchgear, the manufacturer shall make special provisions for
the testing of the cable system, such as disconnecting facilities, earthing facilities and/or
increasing gas pressure within the given design limits of the cable connection enclosure. This
applies also if parts of the switchgear directly connected to the cable connection assembly
cannot withstand the test voltage specified in IEC 60141 and IEC 60840 or IEC 62067 for the
cable test at rated gas density. It also applies if in the judgment of the switchgear
manufacturer, it is not acceptable to apply the test voltage to the affected switchgear
components.
If required by the user, the switchgear manufacturer shall provide the location for a suitable
test bushing and provide the user with all necessary information for mounting such a bushing
to the cable connection enclosure.

For cases where electrical clearances are inadequate, the term bushing shall include a
suitable insulated connection and test terminal. The requirement for the test bushing shall be
specified by the user in the enquiry.
NOTE It should be noted that increasing the gas pressure is not a reliable method of improving the electrical
strength at the surface of an insulator when tested with DC voltage. The AC test voltages of extruded cables after
installation according to IEC 60840 and IEC 62067 are normally not critical for GIS insulators if the level is below
the site test voltages of GIS according to IEC 62271-203 Subclause 10.2.101.1.4.

– 12 – 62271-209 © IEC:2007
9 Information to be given with enquiries, tenders and orders

Refer to IEC 60840:2004 or IEC 62067:2001 (and its amendment 1:2006), IEC 60141-1:1993

and IEC 62271-203:2003. In addition, the user and the manufacturers shall consider the

installation requirements of the equipment. Manufacturers shall state the specific

requirements for civil, electrical and installation clearances applicable to the switchgear,

cable-termination and cable. Information shall be provided in particular and if required in

relation to switchgear/cable termination installation sequence as well as positioning and

temporary fixing of the relevant components.

10 Rules for transport, storage, erection, operation and maintenance
Refer to IEC 60694:1996, Clause 10.
The cable-termination manufacturer should ensure that during manufacture, handling, storage
and installation of the cable-termination, provisions should be made to ensure that the
requirements given in 5.2 of IEC 60694:1996 can be satisfied after final assembly of the
connection. The cable-termination manufacturer should supply the necessary information to
enable these requirements to be satisfied, if the cable-termination is to be installed by others.

62271-209 © IEC:2007 – 13 –
14 8
11 (if needed)
10 (if needed)
2 3
Description Manufacturer
No.
Switchgear Cable termination
Main circuit end terminal X
Connection interface X
Connection interface X
15 (if needed)
Insulator X
Switchgear manufacturer
Cable termination manufacturer limit of supply
Cable connection enclosure X Limit of supply
Enclosure flange or intermediate plate X
Seal X Limit of supply
IEC  1268/07
Screws, washers, nuts X
Insulator collar or adaptor X
Intermediate gasket X (if needed)
Flange X (if needed)
Electrical stress control component X
Cable gland X
14 Gas X
Non-linear resistors X (if needed)
16 Insulating fluid X
Seal X
Figure 2 – Fluid-filled cable connection assembly – Typical arrangement

– 14 – 62271-209 © IEC:2007
One or two grooves for single or double seal
Sealing surface R6,3 max.
Intermediate gasket
Insulator collar
Main-circuit end terminal
(if needed)
or adaptor
(only an example)
r
I
Number of screws
Flange
(if needed)
Connection interface n
Cable connection enclosure
Sealing surface R6,3 max.
r
0,5 A
∅2,5
r
1 I
d
l
t
t
s
d d
d s 9
5 6 3
m
d
d
s
d 4 s
3 1 4
d
d
90° r
r
d
l
Relative angular positions of the
l
enclosure and connection interface
∅0,6 B
fixings are shown as example only
Contact surface
m
l
6 A B
0,2 B
∅0,5
0,5
l
l
l
IEC  1269/07
1 × 45°
b
a
a
a
b
Figure 3 – Fluid-filled cable connection – Assembly dimensions

62271-209 © IEC:2007 – 15 –
11 (if needed)
5 10 (if needed)
Type A
2 3 4
Switchgear manufacturer
Cable termination manufacturer limit of supply
Description Manufacturer
Limit of supply
No.
Switchgear Cable termination
Main circuit end terminal X
Connection interface X
Connection interface X
15 (if needed)
Insulator X
for types A and B
Cable connection enclosure X 5
14 11 (if needed)
Enclosure flange or intermediate plate X
Seal X
Screws, washers, nuts X
Insulator collar or adaptor X
Intermediate gasket X (if needed)
Flange X (if needed)
Electrical stress control (elastomeric) X
Cable gland X
Gas X
Non-linear resistors X (if needed)

3 Type B
IEC  1270/07
Figure 4 – Dry-type cable connection assembly – Typical arrangement

– 16 – 62271-209 © IEC:2007
One or two grooves for single or double seal
Intermediate gasket
Insulator collar
(if needed)
or adaptor
Sealing surface
Main-circuit end terminal
R6,3 max.
r
(only an example)
Number of screws
Flange
I
(if needed)
n
Termination on top
Connection interface
Sealing surface
0,5
r
A 1
∅2,5
R6,3 max.
r
I
d
l
t
t
s
s
d
d d
5 9
m
d
d
s
d 4 s
d 1 4
3 d
2 7
90°
r
r
2 d
l
Relative angular positions of the
enclosure and connection interface l
B
∅0,6
fixings are shown as example only
m
Contact surface 2
A B
l
0,2 B
∅0,5
0,5
l
l
l
IEC  1271/07
1 × 45°
b
c c
a c
c c
c
a
b c
Figure 5 – Dry-type cable connection assembly – Assembly dimensions
___________
– 18 – 62271-209 © CEI:2007
SOMMAIRE
AVANT-PROPOS.19

1 Domaine d'application .21

2 Références normatives.21

3 Termes et définitions .22

4 Limites de fourniture.23

4.1 Généralités.23

4.2 Protection contre la surtension .23
5 Caractéristiques assignées.23
5.1 Généralités.23
5.2 Tension assignée .23
5.3 Niveau d'isolement assigné .24
5.4 Courant assigné en service continu et échauffement .24
5.5 Courant de courte durée admissible assigné, valeur crête du courant
admissible assigné et durée de court-circuit assignée .24
5.6 Pression assignée de remplissage du gaz isolant dans l’enveloppe du
raccordement de câble .24
6 Exigences pour la conception et la construction .25
6.1 Exigences pour la tenue à la pression .25
6.2 Efforts mécaniques sur les extrémités de câble .25
7 Dimensions normalisées.26
7.1 Extrémité de câble remplie d’un fluide .26
7.2 Extrémité de câble sèche .26
7.3 Enveloppe de l’extrémité de câble tripolaire .26
8 Essais .26
8.1 Généralités.26
8.2 Essais diélectriques de type des extrémités de câble .27
8.2.1 Généralités.27
8.2.2 Essai diélectrique de type des extrémités de câble dans une
enveloppe unipolaire .27
8.2.3 Essai diélectrique de type des extrémités de câble dans une
enveloppe tripolaire .27
8.3 Essais après pose du système de câble .27

9 Renseignements à donner dans les appels d’offres, les soumissions et les
commandes.28
10 Règles pour le transport, le stockage, l'installation, la conduite et la maintenance.28

Figure 1 – Pression de service du gaz isolant dans l’enveloppe du raccordement de
câble .25
Figure 2 – Assemblage de raccordement de câble rempli d’un fluide – Exemple de
disposition .29
Figure 3 – Assemblage de raccordement de câble rempli d’un fluide – Dimensions .30
Figure 4 – Assemblage de raccordement de câble sec – Exemples des dispositions.31
Figure 5 – Assemblage de raccordement de câble sec – Dimensions.32

62271-209 © CEI:2007 – 19 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

______________
APPAREILLAGE À HAUTE TENSION –

Partie 209: Raccordement de câbles pour appareillage

sous enveloppe métallique à isolation gazeuse

de tension assignée supérieure à 52 kV –

Câbles remplis d’un fluide ou à isolation extrudée –

Extrémité de câble sèche ou remplie d'un fluide

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dé
...