IEC 62505-2:2016 PDF

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.

IEC 62505-2:2016 Referenced Document

IEC 60850:2014 Railway applications - Supply voltages of traction systems
IEC 62236-5:2008 Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus
IEC 62271-102:2001 High-voltage switchgear and controlgear - Part 102: -Alternating current disconnectors and earthing switches
IEC 62271-103:2011 High-voltage switchgear and controlgear - Part 103: Switches for rated voltages above 1 kV up to and including 52 kV
IEC 62271-1:2007 High-voltage switchgear and controlgear - Part 1: Common specifications
IEC 62497-1:2010 Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
IEC 62498-2:2010 Railway applications - Environmental conditions for equipment - Part 2: Fixed electrical installations
IEC 62505-1:2016 Railway applications - Fixed installations - Particular requirements for AC switchgear - Part 1: Circuit-breakers with nominal voltage above 1 kV

2016 IEC 62505-2:2016 Railway applications - Fixed installations - Particular requirements for AC switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
2009 IEC 62505-2:2009 Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 2: Single-phase disconnectors, earthing switches and switches with U<(Index)n> above 1 kV