IEC 62236-5-2018 PDF

Full title and description

St IEC 62236-5-2018 — Railway applications — Electromagnetic compatibility — Part 5: Emission and immunity of fixed power supply installations and apparatus. This part of IEC 62236 specifies emission and immunity requirements and test methods for electrical and electronic apparatus and systems used in fixed railway power-supply installations (including power feed, protective/control circuits and trackside power equipment such as switching stations, autotransformers, booster transformers and substation power switchgear).

Abstract

IEC 62236-5:2018 defines performance criteria, emission limits and immunity test levels relevant to fixed power-supply installations for railways so as to minimise electromagnetic disturbance to other equipment and to ensure adequate immunity of covered apparatus. The edition includes clarified text and extended emission/immunity requirements compared with the previous edition.

General information

• Status: Valid / Active (third edition, in force).
• Publication date: 15 February 2018.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.100 (Electromagnetic compatibility), 45.060.01 (Railway rolling stock / railway applications).
• Edition / version: Edition 3.0 (2018) — released as IEC 62236-5:2018 RLV (includes Redline version).
• Number of pages: 42 pages (official IEC publication listing).

Key bibliographic and publishing details above are taken from the IEC publication record and national standards catalogues.

Scope

Applies to emission and immunity aspects of electromagnetic compatibility (EMC) for electrical and electronic apparatus and systems intended for use in railway fixed installations for power supply. The scope covers the power feed to apparatus, the apparatus itself including protective/control circuitry, and trackside fixed power equipment such as switching stations, power/autotransformers, booster transformers and substation power switchgear, as well as power switchgear for longitudinal and local supplies. The standard gives limits and tests for emissions to the outside world, emissions within substation boundaries and immunity requirements for different port categories.

Key topics and requirements

• Performance criteria and classification of failure modes for EMC behaviour (pass/fail/graded performance criteria).
• Emission tests and limits — emissions from traction substations to the outside world and emissions within substation boundaries (including switching events and normal operation).
• Detailed immunity test levels and methods for enclosure ports, signal/data ports, process/control ports, and DC input/output power ports (tables of test levels and test types are provided).
• Test procedures for apparatus operating at voltages below 1 000 V r.m.s. AC and for other fixed-supply configurations.
• Requirements and guidance for fixed power supplies on railway property not used for traction purposes (separate clauses addressing these cases).
• Informative annexes giving examples and measurement guidance (e.g., emission within substation boundary and switching-related peak emissions).

These topics and clause structure are taken from the IEC standard content and published table/annex listings.

Typical use and users

Used by railway systems engineers, substation designers, equipment manufacturers, EMC test laboratories, regulatory bodies and procurement/specification authors. Typical applications include specifying EMC performance for substation power equipment, verifying immunity of control and protection circuits, and assessing emissions from fixed power installations to protect signalling, telecommunications and adjacent systems.

Related standards

Part of the IEC 62236 series (Railway applications — Electromagnetic compatibility). Closely related parts include IEC 62236-1 (General), IEC 62236-2 (Emission of the whole railway to the outside world), IEC 62236-3-1 and -3-2 (Rolling stock — train/vehicle and apparatus), and IEC 62236-4 (Signalling and telecommunications apparatus). The series is used together with applicable IEC 61000 family EMC standards and relevant CISPR measurement standards.

Keywords

Electromagnetic compatibility; EMC; railway; fixed power supply; traction substation; emission limits; immunity tests; substation boundary; power switchgear; protective/control circuits.

FAQ

Q: What is this standard?

A: IEC 62236-5:2018 is the international standard that sets emission and immunity requirements for fixed railway power-supply installations and associated apparatus to ensure electromagnetic compatibility within railway environments.

Q: What does it cover?

A: It covers performance criteria, emission limits, and immunity test levels and methods for equipment and systems used in fixed power-supply installations (including substations, transformers, switchgear and associated apparatus), and provides guidance on emissions within substation boundaries and from switching operations.

Q: Who typically uses it?

A: Railway electrical engineers, EMC specialists, manufacturers of substation/power-supply equipment, test laboratories and standards/specification writers use this standard when designing, testing, procuring and certifying fixed power-supply installations for railways.

Q: Is it current or superseded?

A: The 2018 edition (Edition 3.0) replaced the 2008 edition. The 2018 publication is the current (active) edition listed in IEC/national catalogs (publication date 15 February 2018). Users should check national adoption or amendment status for their country and whether any amendments have been published since.

Q: Is it part of a series?

A: Yes — it is Part 5 of the IEC 62236 series on Railway applications — Electromagnetic compatibility. Other parts cover general principles (Part 1), whole-railway emissions (Part 2), rolling stock (Parts 3-1 / 3-2), and signalling/telecommunications (Part 4).

Q: What are the key keywords?

A: Electromagnetic compatibility (EMC), emission, immunity, railway power supply, traction substation, power switchgear, protective control circuits, substation boundary, IEC 62236 series.