Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies

2012-06-05: 9-month tolerance requested (noted by D143/C026)
2021: CLC legacy converted by DCLab NISOSTS

Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen - Teil 6: Gleichstrom-Schaltanlagen

Applications ferroviaires - Installations fixes - Appareillage à courant continu - Partie 6: Ensembles d'appareillage

Železniške naprave - Stabilne naprave električne vleke - Stikalne naprave za enosmerni tok - 6. del: Oprema stikalnih naprav za enosmerni tok

General Information

Status
Published
Publication Date
11-Dec-2014
Current Stage
6060 - Document made available
Due Date
02-Apr-2015

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SLOVENSKI STANDARD
SIST EN 50123-6:2003/oprAA:2013
01-maj-2013
äHOH]QLãNHQDSUDYH6WDELOQHQDSUDYHHOHNWULþQHYOHNH6WLNDOQHQDSUDYH]D
HQRVPHUQLWRNGHO2SUHPDVWLNDOQLKQDSUDY]DHQRVPHUQLWRN

Railway applications - Fixed installations - D.C. switchgear -- Part 6: D.C. switchgear

assemblies
Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen -- Teil 6:
Gleichstrom-Schaltanlagen

Applications ferroviaires - Installations fixes - Appareillage à courant continu -- Partie 6:

Ensembles d'appareillage
Ta slovenski standard je istoveten z: EN 50123-6:2003/prAA:2013
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
SIST EN 50123-6:2003/oprAA:2013 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50123-6:2003/oprAA:2013
---------------------- Page: 2 ----------------------
SIST EN 50123-6:2003/oprAA:2013
DRAFT
EUROPEAN STANDARD
EN 50123-6
prAA
NORME EUROPÉENNE
March 2013
EUROPÄISCHE NORM
ICS 29.130.99; 29.280
English version
Railway applications -
Fixed installations -
D.C. switchgear -
Part 6: D.C. switchgear assemblies
Applications ferroviaires - Bahnanwendungen -
Installations fixes - Ortsfeste Anlagen -
Appareillage à courant continu - Gleichstrom-Schalteinrichtungen -
Partie 6: Ensembles d'appareillage Teil 6: Gleichstrom-Schaltanlagen

This draft amendment prAA, if approved, will modify the European Standard EN 50123-6:2003; it is submitted to

CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-08-09.
It has been drawn up by CLC/SC 9XC.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal

Regulations which stipulate the conditions for giving this amendment the status of a national standard without any

alteration.

This draft amendment was established by CENELEC in three official versions (English, French, German). A version in

any other language made by translation under the responsibility of a CENELEC member into its own language and

notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the

Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they

are aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change

without notice and shall not be referred to as a European Standard.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Project: 23568 Ref. No. EN 50123-6:2003/prAA:2013 E
---------------------- Page: 3 ----------------------
SIST EN 50123-6:2003/oprAA:2013
EN 50123-6:2003/prAA:2013
1 Contents Page

2 Foreword.............................................................................................................................................................. 3

3 2 Normative references ............................................................................................................................ 4

4 3 Definitions .............................................................................................................................................. 4

5 8 Tests........................................................................................................................................................ 4

6 8.2 List of the applicable tests .................................................................................................................... 4

7 8.3 Performance of tests ............................................................................................................................. 4

8.3.9 Internal arc test ...................................................................................................................................... 4

9 Annex B (normative) Method for testing under conditions of arcing due to an internal fault .................... 5

10 B.1 Purpose of the test ................................................................................................................................ 5

11 B.2 Characteristics – Rated short-circuit current under internal arcing conditions (I ).................... 5

Narc

12 B.3 Test arrangements ................................................................................................................................. 5

13 B.3.1 Test specimen ........................................................................................................................................ 5

14 B.3.2 Test circuit .............................................................................................................................................. 6

15 B.3.3 Voltage .................................................................................................................................................... 6

16 B.3.4 Duration of the test ................................................................................................................................ 7

17 B.4 Test procedure ....................................................................................................................................... 7

18 B.4.1 Supply circuit ......................................................................................................................................... 7

19 B.4.2 Arc initiation ........................................................................................................................................... 7

20 B.4.3 Indicators ................................................................................................................................................ 8

21 B.4.4 Repetition of the test ............................................................................................................................. 8

22 B.5 Assessment of the test .......................................................................................................................... 9

23 B.6 Test report .............................................................................................................................................. 9

24 Bibliography ...................................................................................................................................................... 14

---------------------- Page: 4 ----------------------
SIST EN 50123-6:2003/oprAA:2013
EN 50123-6:2003/prAA:2013
27 Foreword

28 This document [EN 50123-6:2003/prAA:2013] has been prepared by CLC/SC 9XC "Electric supply and

29 earthing systems for public transport equipment and ancillary apparatus (Fixed installations)".

30 This document is currently submitted to the Enquiry.

31 This amendment was elaborated to provide guidance to the requirement of 6.6.3, Internal arcing, that gas or

32 vapour escaping under pressure does not endanger operating staff.
---------------------- Page: 5 ----------------------
SIST EN 50123-6:2003/oprAA:2013
EN 50123-6:2003/prAA:2013
33 2 Normative references
34 Add the following references:

35 EN 50123-1:2003, Railway applications – Fixed installations – D.C. switchgear – Part 1: General

36 EN 50123-7-1:2003, Railway applications – Fixed installations – D.C. switchgear – Part 7-1: Measurement,

37 control and protection devices for specific use in d.c. traction systems – Application guide

38 3 Definitions
39 Replace Clause 3 by the following:
40 3 Terms and definitions

41 For the purposes of this document, the terms and definitions given in EN 50123-1:2003 and the following

42 apply.
43 3.1
44 internal arc

45 arcing within a switchgear assembly arising from a fault between active parts and/or between active parts and

46 other conductive parts
47 3.2
48 rated short-circuit current under internal arcing conditions (I )
Narc

49 current, during the test duration/150 ms, indicating the maximum allowable value of sustained short-circuit

50 current at the terminals of the incoming unit for which the requirements of this test specification are fulfilled

51 Note 1 to entry: The value is the maximum value of the prospective sustained short-circuit current.

52 3.3
53 compartment under test
54 compartment of a switchgear assembly which is subject to an internal arc test
55 8 Tests
56 8.2 List of the applicable tests
57 Add the following at the end of Table 2:
Internal arc test Type, optional 8.3.9
59 8.3 Performance of tests
60 Add the following after 8.3.8:
61 8.3.9 Internal arc test

62 The internal arc test is an optional type test. The test shall be performed according to the procedure specified

63 in Annex B. The criteria for successful passing are given in B.5.
---------------------- Page: 6 ----------------------
SIST EN 50123-6:2003/oprAA:2013
EN 50123-6:2003/prAA:2013
64 Add the following after Annex A:
65 Annex B
66 (normative)
68 Method for testing under conditions of arcing due to an internal fault
69 B.1 Purpose of the test

70 Annex B applies to metal-enclosed d.c. switchgear assemblies - hereafter called ASSEMBLIES - used in

71 indoor stationary installations.
72 The test procedure described below is intended
73  to assess the ability of the ASSEMBLY to limit the risk of personal injury,
74  to verify the effectiveness of the design in protecting persons,
75 in case of an internal arc.

76 The testing conditions take into account that ASSEMBLIES are installed in areas restricted to authorised

77 personnel.
78 NOTE This is equivalent to accessibility class A of EN 62271-200:2012.
79 B.2 Characteristics – Rated short-circuit current under internal arcing
80 conditions (I )
Narc

81 Value of the rated short-circuit current shall be equal to the rated earth fault current I . The peak of the

Ncwe

82 short-circuit current value is conventionally assumed to be 1,42 times the prospective sustained short-circuit

83 current (fault of negligible impedance).

84 NOTE The current level during internal arcing depends on the earthing of the switchboard frame (see

85 EN 50123-7-1:2003, 6.5.7). High fault currents can be expected where the switchboard frame is

86 – directly connected to the return circuit as shown in EN 50123-7-1:2003, 6.5.7, Figure 4b, or

87 – connected to substation earth as shown in EN 50123-7-1:2003, 6.5.7, Figure 4a, and a fast acting,

88 – voltage limiting device is installed between substation earth and the return circuit.

89 Lower fault currents can be expected where the bedding resistance of the track and the earth resistance limit the fault

90 current
91 B.3 Test arrangements
92 B.3.1 Test specimen

93 The test shall be carried out on representative samples. In case of an ASSEMBLY with a continuous main

94 busbar, consisting of extensible (modular) standalone units, the test specimen shall consist of minimum three

95 units connected together as in service.
---------------------- Page: 7 ----------------------
SIST EN 50123-6:2003/oprAA:2013
EN 50123-6:2003/prAA:2013
96 The following points shall be observed.

97  The test shall be carried out on a test specimen not previously subjected to an arcing test or on a

98 specimen cleaned and prepared accordingly. The specimen and the equipment in it may be repaired or

99 replaced before each test.

100 NOTE Degradation of insulation due to carbonisation or moderate erosion of metal parts is not necessarily

101 considered to render a unit unsuitable for a further test.

102  The test specimen shall be placed in an open area and shall be fixed by its designed means.

103  Vertical indicators shall be installed all around.
104  A ceiling s
...

SLOVENSKI STANDARD
SIST EN 50123-6:2003/A1:2015
01-april-2015
äHOH]QLãNHQDSUDYH6WDELOQHQDSUDYHHOHNWULþQHYOHNH6WLNDOQHQDSUDYH]D
HQRVPHUQLWRNGHO2SUHPDVWLNDOQLKQDSUDY]DHQRVPHUQLWRN

Railway applications - Fixed installations - D.C. switchgear -- Part 6: D.C. switchgear

assemblies
Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen -- Teil 6:
Gleichstrom-Schaltanlagen

Applications ferroviaires - Installations fixes - Appareillage à courant continu -- Partie 6:

Ensembles d'appareillage
Ta slovenski standard je istoveten z: EN 50123-6:2003/A1:2014
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
SIST EN 50123-6:2003/A1:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50123-6:2003/A1:2015
---------------------- Page: 2 ----------------------
SIST EN 50123-6:2003/A1:2015
EUROPEAN STANDARD
EN 50123-6:2003/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2014
ICS 29.130.99; 29.280
English Version
Railway applications - Fixed installations - D.C. switchgear - Part
6: D.C. switchgear assemblies

Applications ferroviaires - Installations fixes - Appareillage à Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-

courant continu - Partie 6: Ensembles d'appareillage Schalteinrichtungen - Teil 6: Gleichstrom-Schaltanlagen

This amendment A1 modifies the European Standard EN 50123-6:2003; it was approved by CENELEC on 2014-11-17. CENELEC

members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the

status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the

responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status

as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50123-6:2003/A1:2014 E
---------------------- Page: 3 ----------------------
SIST EN 50123-6:2003/A1:2015
EN 50123-6:2003/A1:2014 - 2 -
Contents Page

Foreword.............................................................................................................................................................. 3

2 Normative references ............................................................................................................................ 4

3 Definitions .............................................................................................................................................. 4

8 Tests........................................................................................................................................................ 4

8.2 List of the applicable tests .................................................................................................................... 4

8.3 Performance of tests ............................................................................................................................. 4

8.3.9 Internal arc test ...................................................................................................................................... 4

Annex B (normative) Method for testing under conditions of arcing due to an internal fault .................... 5

B.1 Purpose of the test ................................................................................................................................ 5

B.2 Characteristics – Rated short-circuit current under internal arcing conditions (I ).................... 5

Narc

B.3 Test arrangements ................................................................................................................................. 6

B.3.1 Test specimen ........................................................................................................................................ 6

B.3.2 Test circuit .............................................................................................................................................. 7

B.3.3 Voltage .................................................................................................................................................... 7

B.3.4 Duration of the test ................................................................................................................................ 7

B.4 Test procedure ....................................................................................................................................... 7

B.4.1 Supply circuit ......................................................................................................................................... 7

B.4.2 Arc initiation ........................................................................................................................................... 7

B.4.3 Indicators ................................................................................................................................................ 8

B.4.4 Repetition of the test ............................................................................................................................. 9

B.5 Assessment of the test .......................................................................................................................... 9

B.6 Test report ............................................................................................................................................ 10

Bibliography ...................................................................................................................................................... 14

---------------------- Page: 4 ----------------------
SIST EN 50123-6:2003/A1:2015
- 3 - EN 50123-6:2003/A1:2014
Foreword

This document (EN 50123-6:2003/A1:2014) has been prepared by CLC/SC 9XC "Electric supply and earthing

systems for public transport equipment and ancillary apparatus (Fixed installations)".

The following dates are fixed:
• latest date by which this document has to be (dop) 2015-11-17
implemented at national level by publication of
an identical national standard or by
endorsement
(dow) 2017-11-17
• latest date by which the national standards
conflicting with this document have to
be withdrawn

This amendment was elaborated to provide guidance to the requirement of 6.6.3, Internal arcing, that gas or

vapour escaping under pressure does not endanger operating staff.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

---------------------- Page: 5 ----------------------
SIST EN 50123-6:2003/A1:2015
EN 50123-6:2003/A1:2014 - 4 -
2 Normative references
Add the following reference:

EN 50123-1:2003, Railway applications – Fixed installations – D.C. switchgear – Part 1: General

3 Definitions
Replace Clause 3 by the following:
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 50123-1:2003 and the following

apply.
3.1
internal arc

arcing within a switchgear assembly arising from a fault between active parts and/or between active parts and

other conductive parts
3.2
rated short-circuit current under internal arcing conditions (I )
Narc

current, during the test duration/150 ms, indicating the maximum allowable value of sustained short-circuit

current at the terminals of the incoming unit for which the requirements of this test specification are fulfilled

Note 1 to entry: The value is the maximum value of the prospective sustained short-circuit current.

3.3
compartment under test
compartment of a switchgear assembly which is subject to an internal arc test
8 Tests
8.2 List of the applicable tests
Add the following at the end of Table 2:
Internal arc test Type, optional 8.3.9
8.3 Performance of tests
Add the following after 8.3.8:
8.3.9 Internal arc test

The internal arc test is an optional type test. The test shall be performed according to the procedure specified

in Annex B. The criteria for successful passing are given in B.5.
---------------------- Page: 6 ----------------------
SIST EN 50123-6:2003/A1:2015
- 5 - EN 50123-6:2003/A1:2014
Add the following after Annex A:
Annex B
(normative)
Method for testing under conditions of arcing due to an internal fault
B.1 Purpose of the test

Annex B applies to metal-enclosed d.c. switchgear assemblies - hereafter called ASSEMBLIES - used in

indoor stationary installations.
The test procedure described below is intended
 to assess the ability of the ASSEMBLY to limit the risk of personal injury,
 to verify the effectiveness of the design in protecting persons,
in case of an internal arc.

The testing conditions take into account that ASSEMBLIES are installed in areas restricted to authorized

personnel.
NOTE This is equivalent to accessibility class A of EN 62271-200:2012.
B.2 Characteristics – Rated short-circuit current under internal arcing
conditions (I )
Narc

Value of the rated short-circuit current current under internal arcing conditions I shall be equal to the rated

Narc

earth fault current I . The peak of the short-circuit current value is conventionally assumed to be 1,42 times

Ncwe
the prospective sustained short-circuit current (fault of negligible impedance).

NOTE The current level during internal arcing depends on the earthing of the switchboard frame (see

EN 50123-7-1:2003, 6.5.7). High fault currents can be expected where the switchboard frame is

– directly connected to the return circuit as shown in EN 50123-7-1:2003, 6.5.7, Figure 4b, or

– connected to substation earth as shown in EN 50123-7-1:2003, 6.5.7, Figure 4a, and a voltage limiting device is

installed between substation earth and the return circuit.

Lower fault currents can be expected where the bedding resistance of the track and the earth resistance limit the fault

current.
---------------------- Page: 7 ----------------------
SIST EN 50123-6:2003/A1:2015
EN 50123-6:2003/A1:2014 - 6 -
B.3 Test arrangements
B.3.1 Test specimen

The test shall be carried out on representative samples. In case of an ASSEMBLY with a continuous main

busbar, consisting of extensible (modular) standalone units, the test specimen shall consist of minimum two

units connected together as in service.
The following points shall be observed.

 The test shall be carried out on a test specimen not previously subjected to an arcing test or on a

specimen cleaned and prepared accordingly. The specimen and the equipment in it may be repaired or

replaced before each test.

NOTE Degradation of insulation due to carbonisation or moderate erosion of metal parts is not necessarily

considered to render a unit unsuitable for a further test.

 The test specimen shall be placed in an open area and shall be fixed by its designed means.

 Vertical indicators shall be installed all around.
 A ceiling shall be loca
...

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