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



Reference EN 50089:1992/A1:1994
Title Cast resin partitions for metal enclosed gas-filled high-voltage switchgear and controlgear
Project Number 4708
Abstract/Scope This standard applies to cast resin partitions pressurized with inert gases, for example sulfur hexafluoride or a mixture of gases such as sulfur hexafluoride and nitrogen used in indoor or outdoor installations of high-voltage switchgear and controlgear, where the gas is used principally for its dielectric and/or arc-quenching properties, with rated coltages - 1kV and up to and including 52 kV and with gas-filled compartments with design pressure greater than 3 bar (gauge); and with rated voltage 72,5 kV and above. The partitions comprise pressurized barriers in electrical equipment not necessarily limited to the following examples: circuit breakers, switch disconnectors, earthing switches, current transformers, voltage transformers, surge arrestors, busbars and connections, cable connections. This standard does not apply to high-voltage bushings (see HD 358 83 (IEC 517)


Current Stage code 6060
Current Stage code date 1994-02-11
Current Stage code deadline 1994-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body  
Reference Document  
Keywords Switchgear and controlgear; HV; Metal-enclosed; Cast resin partition
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1994-02-11 1994-10-01 export to doc file  EN
5099 1993-12-08 1994-01-08  
5020 1993-04-07 1993-10-15  

Implementation Dates

date of Ratification (DOR) (1) 1993-12-08
date of Availability (DAV) (2) 1994-02-11
date of Announcement (DOA) (3) 1994-04-01
date of Publication (DOP) (4) 1994-10-01
date of Withdrawal (DOW) (5) 1994-10-01


Superseded by  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.