درباره ما
IEC 62505-2
English -- Railway applications ? Fixed installations ? Particular requirements for AC switchgear ? Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV - Edition 2.0;
French -- Applications ferroviaires ? Installations fixes ? Exigences particuliŠres pour appareillage … courant alternatif ? Partie 2: Sectionneurs, sectionneurs de terre et commutateurs avec tension nominale sup‚rieure … 1 kV - Edition 2.0
Organization:
IEC - International Electrotechnical Commission
Year: 2016
Abstract: 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.
Collections
:
Show full item record
| contributor author | IEC - International Electrotechnical Commission | |
| date accessioned | 2017-10-18T11:08:53Z | |
| date available | 2017-10-18T11:08:53Z | |
| date copyright | 2016.02.01 | |
| date issued | 2016 | |
| identifier other | VZIGOFAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsessiouthor:%22NAVY%20-%20YD%20-/handle/yse/235598 | |
| description abstract | 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. | |
| language | English, French | |
| title | IEC 62505-2 | num |
| title | English -- Railway applications ? Fixed installations ? Particular requirements for AC switchgear ? Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV - Edition 2.0 | en |
| title | French -- Applications ferroviaires ? Installations fixes ? Exigences particuliŠres pour appareillage … courant alternatif ? Partie 2: Sectionneurs, sectionneurs de terre et commutateurs avec tension nominale sup‚rieure … 1 kV - Edition 2.0 | other |
| type | standard | |
| page | 36 | |
| status | Active | |
| tree | IEC - International Electrotechnical Commission:;2016 | |
| contenttype | fulltext |