BS EN 50121-5:2006
Railway applications - Electromagnetic compatibility -Part 5: Emission and immunity of fixed power supply installations and apparatus

Standard No.

BS EN 50121-5:2006

Release Date

2006

Published By

British Standards Institution (BSI)

Status

Be replaced 2015-03

Replace By

BS EN 50121-5:2015

Latest

BS EN 50121-5:2017+A1:2019

Replace

04/30116608 DC-2004 BS EN 50121-5:2000

Scope

This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus and systems intended for use in railway fixed installations associated with power supply. This includes the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items such as switching stations, power autotransformers, booster transformers, substation power switchgear and power switchgear to other longitudinal and local supplies. Filters operating at railway system voltage (for example, for harmonic suppression or power factor correction) are not included in this standard since each site has special requirements. Filters would normally have separate enclosures with separate rules for access. If electromagnetic limits are required, these will appear in the specification for the equipment. The limits in this standard do not apply to intentional communication signals. The frequency range considered is from d.c. to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. Emission and immunity limits are given for items of apparatus which are situated: a) within the boundary of a substation which delivers electric power to a railway; b) beside the track for the purpose of controlling or regulating the railway power supply, including power factor correction and filtering; c) along the track for the purpose of supplying electrical power to the railway other than by means of the conductors used for contact current collection, and associated return conductors. Included are high voltage feeder systems within the boundary of the railway which supply substations at which the voltage is reduced to the railway system voltage. NOTE 1 Examples are one conductor of a 25-0-25 kV 50 Hz system and the 110 kV 16,7 Hz supply systems. NOTE 2 Similar conductors which are outside the railway boundary are treated as in the public area and are considered to be general overhead power lines although they feed only the railway. d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This category includes power supplies to marshalling yards, maintenance depots and stations; e) various other non-traction power supplies from railway sources which are shared with railway traction. Apparatus and systems which are in an environment which can be described as residential, commercial or light industry, even when placed within the physical boundary of the railway substation, shall comply with the relevant generic European EMC standard. Excluded from the immunity requirements of this standard is power supply apparatus which is intrinsically immune to the tests defined in Tables 1 to 6 of this standard. NOTE 3 An example is an 18 MVA 230 kV to 25 kV power supply transformer. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1. This part of the standard covers requirements for both apparatus and fixed installations. The sections for fixed installations are not relevant for CE marking.

BS EN 50121-5:2006 Referenced Document

• EN 50121-1 Railway applications - Electromagnetic compatibility - Part 1: General*， 2017-01-01 Update
• EN 50121-2 Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside world*， 2017-01-01 Update
• EN 55016-1-1 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus (Incorporates Amendment A1: 2010)*， 2010-03-01 Update
• EN 55022 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement (Incorporating corrigendum October 2011)*， 2024-04-18 Update
• EN 61000-3-2 Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)*， 2014-08-01 Update
• EN 61000-3-3 Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection*， 2021-11-05 Update
• EN 61000-4-2 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test*， 2009-03-01 Update
• EN 61000-4-3 Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test*， 2009-02-26 Update
• EN 61000-4-4 Electromagnetic Compatibility (EMC) - Part 4-4: Testing and Measurement Techniques - Electrical Fast Transient/Burst Immunity Test (Incorporates Amendment A1: 2001)
• EN 61000-4-5 Electromagnetic Compatibility (EMC) - Part 4-8: Testing and Measurement Techniques - Power Frequency Magnetic Field Immunity Test Including Amendment A1: 2001; IEC 61000-4-8: 1993 + A1: 2000; Remains Current
• EN 61000-4-6 Electromagnetic Compatibility (EMC) - Part 4-6: Testing and Measurement Techniques - Immunity to Conducted Disturbances@ Induced by Radio-Frequency Fields (Incorporates Amendment A1: 2001)
• EN 61000-4-8 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test*， 2010-02-12 Update
• EN 61000-6-2 Electromagnetic compatibility (EMC) Part 6-2: Generic standards - Immunity for industrial environments
• EN 61000-6-4 Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments (Incorporates Amendment A1: 2011)*， 2007-01-01 Update

BS EN 50121-5:2006 history

• 2020 BS EN 50121-5:2017+A1:2019 Railway applications. Electromagnetic compatibility. Emission and immunity of fixed power supply installations and apparatus
• 2017 BS EN 50121-5:2017 Railway applications. Electromagnetic compatibility-Emission and immunity of fixed power supply installations and apparatus
• 2015 BS EN 50121-5:2015 Railway applications. Electromagnetic compatibility. Emission and immunity of fixed power supply installations and apparatus
• 2006 BS EN 50121-5:2006 Railway applications - Electromagnetic compatibility -Part 5: Emission and immunity of fixed power supply installations and apparatus
• 2000 BS EN 50121-5:2000 Railway applications - Electromagnetic compatibility - Emission and immunity of fixed power supply installations and apparatus
• 1970 BS DD ENV 50121-5:1996 Railway applications. Electromagnetic compatibility. Fixed power supply installations