EN 50123-3:2003
(Main)Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
This part of EN 50123 specifies requirements for d.c. disconnectors, switch-disconnectors and earthing switches for use in indoor fixed installations of traction systems. NOTE 1 Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this part of EN 50123, but rather by other parts of this standard or other documents as indicated in EN 50123 1. NOTE 2 In this standard the word "unit" means "disconnector and/or switch-disconnector and/or earthing switch" as defined in 3.1.4, 3.1.5 and 3.1.6 of EN 50123 1. NOTE 3 Disconnectors, switch-disconnectors and earthing switches may have electrically latched mechanisms and, in such cases, may be indicated with the current term of "power contactors".
Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen - Teil 3: Gleichstrom-Trennschalter, -Lasttrennschalter und -Erdungsschalter für Innenräume
Applications ferroviaires - Installations fixes - Appareillages à courant continu - Partie 3: Interrupteurs-sectionneurs, sectionneurs et sectionneurs de terre pour l'intérieur
Železniške naprave – Stabilne naprave električne vleke – Stikalne naprave za enosmerni tok – 3. del: Ločilniki in odklopni ločilniki za enosmerni tok v zaprtih prostorih
Ta del standarda EN 50123 določa zahteve za ločilnike, odklopne ločilnike in ozemljitvena stikala za enosmerni tok za stabilne naprave vlečnih sistemov v zaprtih prostorih.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SURVWRULKBahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen -- Teil 3: Gleichstrom-Trennschalter und -Lasttrennschalter und -Erdungsschalter für InnenräumeApplications ferroviaires - Installations fixes - Appareillages à courant continu -- Partie 3: Interrupteurs-sectionneurs, sectionneurs et sectionneurs de terre pour l'intérieurRailway applications - Fixed installations - D.C. switchgear -- Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches29.280Electric traction equipment29.130.99Druge stikalne in krmilne napraveOther switchgear and controlgearICS:Ta slovenski standard je istoveten z:EN 50123-3:2003SIST EN 50123-3:2003en01-maj-2003SIST EN 50123-3:2003SLOVENSKI
STANDARDSIST EN 50123-3:19981DGRPHãþD
EUROPEAN STANDARD
EN 50123-3 NORME EUROPÉENNE EUROPÄISCHE NORM
February 2003 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50123-3:2003 E
ICS 29.160.60; 45.020 Supersedes EN 50123-3:1995
English version
Railway applications – Fixed installations – D.C. switchgear Part 3: Indoor d.c. disconnectors, switch-disconnectors
and earthing switches
Applications ferroviaires –
Installations fixes –
Appareillages à courant continu Partie 3: Interrupteurs-sectionneurs, sectionneurs et sectionneurs de terre
pour l'intérieur
Bahnanwendungen –
Ortsfeste Anlagen –
Gleichstrom-Schalteinrichtungen Teil 3: Gleichstrom-Trennschalter,
-Lasttrennschalter und -Erdungsschalter für Innenräume
This European Standard was approved by CENELEC on 2002-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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 Central Secretariat or to any CENELEC member.
This European Standard 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-09-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-09-01 This Part 3 is to be used in conjunction with EN 50123-1:2003. Annexes designated “informative” are given for information only.
In this standard, annex A is informative. __________ SIST EN 50123-3:2003
– 3 – EN 50123-3:2003 Contents
1 Scope.4 2 Normative references.4 3 Definitions.4 4 Service requirements.4 5 Characteristics of the unit.4 5.1 Enumeration of the characteristics.4 5.2 Type of unit.5 5.3 Rated values.5 5.4 Class of use.6 5.5 Control circuits.7 5.6 Auxiliary contacts and circuits.8 6 Construction.8 6.1 General.8 6.2 Unit enclosures.10 6.3 Temperature-rises.10 6.4 Dielectric strength.10 6.5 Electrical and mechanical endurance.10 6.6 Operation.11 6.7 Corrosion protection.12 6.8 Noise emission.12 6.9 Cooling.12 6.10 Servo-control (where applicable).12 6.11 Other facilities.12 7 Information and marking.13 7.1 Information.13 7.2 Marking.13 8 Tests.14 8.1 General.14 8.2 Applicable tests and test sequence.14 8.3 Performance of tests.15 Annex A (informative)
Information required.20 A.1
General.20 A.2
Procurement specification.20 A.3
Manufacturer's specification.20
Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this part of EN 50123, but rather by other parts of this standard or other documents as indicated in EN 50123-1. NOTE 2
In this standard the word "unit" means "disconnector and/or switch-disconnector and/or earthing switch" as defined in 3.1.4, 3.1.5 and 3.1.6 of EN 50123-1. NOTE 3
Disconnectors, switch-disconnectors and earthing switches may have electrically latched mechanisms and, in such cases, may be indicated with the current term of "power contactors". 2 Normative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). See EN 50123-1:2003,. 3 Definitions For the purposes of this European Standard, the terms and definitions given in EN 50123-1 apply. 4 Service requirements Environmental conditions applicable to the equipment discussed in this standard are covered in 4.1 of EN 50123-1. 5 Characteristics of the unit 5.1 Enumeration of the characteristics The characteristics of the unit and its assigned designations and values (where applicable) are covered as follows: • type of unit (5.2); • rated values (5.3); • class of use (5.4); • control circuits (5.5); • auxiliary circuits (5.6). SIST EN 50123-3:2003
– 5 – EN 50123-3:2003 5.2 Type of unit A unit shall be defined by the following details as applicable: • whether the unit is a switch-disconnector, disconnector, earthing switch or a combination of these types; • number of poles; • number of positions (if there are more than two); • provision of an enclosure; • degree of protection provided by the enclosure (see 3.3.29 of EN 50123-1). 5.3 Rated values 5.3.1 General The rated characteristic values shall be specified by the purchaser. Nominal voltage values shall be selected from the values indicated in Table 1 in EN 50123-1; current values should have one of the preferred values in 5.1.2 of EN 50123-1. These values shall be confirmed by the manufacturer, who shall indicate the rated values for the type of unit proposed, and shall be complemented with other data. All these values are to be stipulated in accordance with 5.3.2 to 5.3.4, but it is not necessary to specify all the listed rated values.
5.3.2 Voltages A unit is defined by the following voltages: • nominal voltage Un (see EN 50163); • system voltages and limits (see 3.2.1 and 5.1.3 of EN 50123-1); • rated voltage UNe (see 3.2.3 of EN 50123-1); • rated insulation voltage UNm
(see 3.2.2 of EN 50123-1). It shall be equal to or higher than Umax; • rated impulse withstand voltage UNi
(see 3.2.4 of EN 50123-1); • power-frequency voltage withstand level Ua
(see 3.2.5 of EN 50123-1); • rated auxiliary and control supply voltages
(see 3.2.3.1 of EN 50123-1). 5.3.3 Currents A unit is defined by the following currents: • conventional thermal current Ith Ithe
(see 3.2.8 and 3.2.9 of EN 50123-1); NOTE 1
Earthing switches are not required to be assigned this rating. SIST EN 50123-3:2003
(see 3.2.10 of EN 50123-1); NOTE 2
Earthing switches are not required to be assigned this rating. • rated breaking and making capacities
(see 3.2.18 and 3.2.22 of EN 50123-1); – Switch-disconnectors and those disconnectors for which the manufacturer declares a making capacity, shall be able to make the stated prospective current at a voltage U equal to 1,2 UNe. – A rated breaking capacity requires the unit to be able to interrupt any current of a value lower than or equal to this rated breaking capacity. • rated short-time withstand current INcw
(see 3.2.11 of EN 50123-1). NOTE 3
Rated short-time currents INcw need not have the same value as the rated short-circuit current INss. • Overload capability: the purchaser shall inform the supplier of the load cycle requirements (see 3.2.10, note 2, of EN 50123-1). 5.4 Class of use Disconnectors shall close and open at no-load except if otherwise declared by the manufacturer. Switch-disconnectors shall close and open on-load, including highly inductive loads. Both devices have either electrically latched or mechanically latched mechanisms. The minimum breaking, making and short-time withstand currents of the units shall be at least those in Table 1 for the appropriate category. SIST EN 50123-3:2003
– 7 – EN 50123-3:2003 Table 1 - Categories of units Category Capacities (with tc ≥ 0,01 s) Short-time withstand current Making Breaking Current Duration I 0 0 INcw/INcwe 0,25 s II 0 INe INcw 0,25 s III INe INe INcw 0,25 s IV 3 INe 3 INe INcw 0,25 s V INss 0 INcw/INcwe 0,25 s VI INss 3 INe INcw 0,25 s NOTE 1
Unless otherwise specified INss has the same rating as INcw or, for earthing switches,INcwe. NOTE 2
A typical application of the above categories is the following: • Category I: Disconnector and earthing switch used in locations where the purchaser has taken all precautions to inhibit making on to a fault current. • Category II: Switch disconnector required for breaking load current only. • Category III: Switch-disconnector in series with the feeder, required for making and breaking the rated current only. • Category IV: Switch-disconnector as in III, but required for making and breaking the train starting current. • Category V: Disconnector and earthing switch used in locations where the possibility exists of an inadvertent make on to a fault current. • Category VI: Switch-disconnector as in IV, but required for making on to a fault current. NOTE 3
For definition of tc see 3.2.15 of EN 50123-1. NOTE 4
For earthing switches, refer to 8.3.4.3 of EN 50123-6 to establish the value of INcwe which shall be 10 kA sustained as a minimum. 5.5 Control circuits The control circuits are identified by the following: • the voltage of the control circuits; • the kind of current (d.c. or a.c.); • the frequency, in case of a.c. The voltage of the supply source and its frequency are the values on which the performance, the thermal behaviour and the insulation characteristics are based. Unless otherwise required, the voltage shall be in accordance with 5.
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