UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

IEC 62505-2

Railway applications – Fixed installations – Particular requirements for AC switchgear – Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV

active, Most Current
Buy Now
Organization: IEC
Publication Date: 1 February 2016
Status: active
Page Count: 36
ICS Code (Railway rolling stock): 45.060
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.

Document History

IEC 62505-2
February 1, 2016
Railway applications – Fixed installations – Particular requirements for AC switchgear – Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
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...
March 1, 2009
Railway applications – Fixed installations – Particular requirements for a.c. switchgear – Part 2: Single-phase disconnectors, earthing switches and switches with Un above 1 kV
This part of IEC 62505 is applicable to single-phase a.c. one-pole disconnectors, earthing switches and switches (switch-disconnectors and general purpose switches) designed for indoor or outdoor...

References

Advertisement