International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 50443:2011
Title Effects of electromagnetic interference on pipelines caused by high voltage a.c. electric traction systems and/or high voltage a.c. power supply systems
Project Number 23055
Abstract/Scope The presence of ac power supply systems or of a.c. electric traction systems (in this standard also indicated as a.c. power systems) may cause voltages to build up in pipeline systems,(in this standard indicated as interfered systems) running in the close vicinity, due to one or more of the following mechanisms:  inductive coupling,  conductive coupling,  capacitive coupling. Such voltages may cause danger to persons, damage to pipelines or connected equipment or disturbance to the electrical/ electronic equipment connected to the pipeline. This European Standard deals with the situations where these effects may arise and with the maximum tolerable limits of the interference effects, taking into account the behaviour of the ac power systems both in normal operating condition and/or during faults. NOTE In the worst case, the pipe may not disperse current to ground. As a consequence, the prospective touch voltage coincides with the interference voltage. This European Standard applies to all metallic pipelines irrespective of the conveyed fluid, e.g. liquid or gas, liable to be interfered by high voltage a.c. railway and high voltage a.c. power supply systems. The objective of this standard is to establish:  the procedure for evaluating the e.m. interference;  the interference distance to be considered;  the types of coupling to be considered for operating and fault conditions of the high voltage a.c. electric traction systems and high voltage a.c. power supply systems;  the configurations to be considered for both metallic pipeline and high voltage a.c. electric traction systems or high voltage a.c. power systems;  the limits of the voltages due to the electromagnetic interference;  information on interference situations, calculation methods, measuring methods, mitigation measures, management of interference. This European Standard is applicable to all new metallic pipelines and all new high voltage a.c. electric traction systems and high voltage a.c. power supply systems and all major modifications that may change significantly the interference effect. This European Standard only relates to phenomena at the fundamental power frequency (e.g. 50 Hz or 16,7 Hz). This European Standard does not apply to:  all aspects of corrosion,  the coupling from a.c. railway and power supply systems with nominal voltages less than or equal to 1 kV,  interference effects on the equipment not electrically connected to the pipeline.


Current Stage code 6060
Current Stage code date 2011-12-09
Current Stage code deadline 2012-10-24
Deadline date for vote 2013-06-30


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 23.040.99 - Other pipeline components
29.280 - Electric traction equipment
33.100.01 - Electromagnetic compatibility in general
Keywords Railway; Fixed installations; Electromagnetic; Interference; Pipeline
Note Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-12-09 2012-10-24 export to doc file  EN  FR
5099 2011-10-24 2011-11-21  
5060 2011-09-19 2011-10-10 export to doc file  EN
5020 2011-04-15 2011-09-16 export to doc file  EN  FR
4099 2011-04-11 2011-04-22  
1099 2010-10-01    
1000 2010-05-06 2010-09-30  

Implementation Dates

date of Ratification (DOR) (1) 2011-10-24
date of Availability (DAV) (2) 2011-12-09
date of Announcement (DOA) (3) 2012-04-24
date of Publication (DOP) (4) 2012-10-24
date of Withdrawal (DOW) (5) 2014-10-24


Superseded by  
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.