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



Reference EN 50464-2-3:2007
Title Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-3: Distribution transformers with cable boxes on the high-voltage and/or low-voltage side - Cable boxes type 2 for use on distribution transformers meeting the requirements of EN 50464-2-1
Project Number 14817
Abstract/Scope Cable boxes described in this European Standard correspond to cable boxes Type 2 in EN 50464-2-1 and are suitable for assembly on the cover of oil-immersed distribution transformers meeting the requirements of EN 50464-2-1. Cable boxes are air-filled, metal- or non-metal enclosed, for high- and/or low-voltage connections in the following variations: 1.1 High-voltage side a) Connection directly to bushings; b) Connection via busbar system. 1.2 Low-voltage side a) Connection directly to bushings (maximum of four connectors per bushing); b) Connection via busbar system.


Current Stage code 6060
Current Stage code date 2007-04-20
Current Stage code deadline 2007-12-01
Deadline date for vote 2006-03-15


Order Voucher  


IEC Technical Body IEC/TC 14
Reference Document  
ICS 29.180 - Transformers. Reactors
Keywords Transformer; Distribution transformer; Oil immersed; Highest voltage; Cable box
Note Supersedes HD 428.2.3 S1:1998 (PR=5742) * No dow (conversion) * Will be later superseded by future prEN 50588-2-3
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-04-20 2007-12-01 export to doc file  EN  FR  DE
5099 2006-12-01 2007-04-01  
5060 2006-11-20 2006-12-04 export to doc file  EN
5020 2006-09-15 2006-11-17 export to doc file  EN
3090 2006-06-08 2006-10-08  
2020 2006-01-26 2006-03-15  
1099 2005-09-20 2006-03-20  
1000 2004-12-02 2005-06-02  
1000 2003-12-10 2004-06-10  
1000 2001-09-25 2002-03-25  

Implementation Dates

date of Ratification (DOR) (1) 2006-12-01
date of Availability (DAV) (2) 2007-04-20
date of Announcement (DOA) (3) 2007-06-01
date of Publication (DOP) (4) 2007-12-01
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6) EN 50180:1997
EN 50181:1997
EN 50336:2002
EN 50386:2002
EN 50387:2002
EN 60076-1:1997
EN 60529:1991

(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.