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



Reference EN 50386:2010
Title Bushings up to 1 kV and from 250 A to 5 kA, for liquid filled transformers
Project Number 21708
Abstract/Scope This European Standard is applicable to ceramic insulated bushings for rated voltages up to 1 000 V, rated currents from 250 A up to 5 000 A and frequencies from 15 Hz up to 60 Hz for insulating liquid filled transformers. NOTE These bushings are suitable for operation at 1,1 kV in compliance with EN 50464-1.


Current Stage code 6060
Current Stage code date 2010-10-15
Current Stage code deadline 2011-10-01
Deadline date for vote 2010-02-28


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.180 - Transformers. Reactors
Keywords Bushing; Transformer; Liquid filled
Note Supersedes EN 50386:2002
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-10-15 2011-10-01 export to doc file  EN  FR  DE
5099 2010-10-01 2011-02-01  
5061 2010-08-25 2010-10-01  
5060 2010-07-05 2010-08-05 export to doc file  EN
5020 2010-01-29 2010-07-02 export to doc file  EN  FR  DE
3090 2009-12-03 2010-01-03  
2020 2009-10-28 2009-12-31  
1099 2008-03-01 2008-09-01  
1000 2008-01-02 2008-02-29  

Implementation Dates

date of Ratification (DOR) (1) 2010-10-01
date of Availability (DAV) (2) 2010-10-15
date of Announcement (DOA) (3) 2011-04-01
date of Publication (DOP) (4) 2011-10-01
date of Withdrawal (DOW) (5) 2013-10-01


Supersedes EN 50386:2002
Superseded by  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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.