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



Reference EN 61050:1992
Title Transformers for tubular discharge lamps having a no-load output voltage exceeding 1 kV (generally called neon-transformers) - General and safety requirements
Project Number 3675
Abstract/Scope Applicable to independent and built-in single-phase transformers with separate input and output windings, for use on a.c. supply up to 1000 V at 50 Hz or 60 Hz, to supply and stabilize cold cathode tubular lamps (or assemblies of such lamps) having a no-load rated output voltage exceeding 1000 V but not exceeding 10 000 V and intended for lighting and for electric advertising signs, light signals and similar purposes.


Current Stage code 6060
Current Stage code date 1992-06-12
Current Stage code deadline 1993-03-01
Deadline date for vote  


Directive(s) LVD (2006/95/EC)
Order Voucher  


IEC Technical Body IEC/SC 34C
Reference Document IEC 61050:1991 (MOD) + corrigendum Mar. 1992 (EQV)
ICS 29.140.30 - Fluorescent lamps. Discharge lamps
29.180 - Transformers. Reactors
Keywords Lighting; Tubular discharge lamp; Neon-transformer; Safety
Note Supersedes HD 388 S2
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1992-06-12 1993-03-01 export to doc file  EN
6020 1992-04-24 1992-07-24  
5099 1992-03-24 1992-04-24  
5020 1991-06-14 1992-01-15  
3090 1991-01-17 1991-07-17  
1099 1989-02-02 1989-03-06  

Implementation Dates

date of Ratification (DOR) (1) 1992-03-24
date of Availability (DAV) (2) 1992-06-12
date of Announcement (DOA) (3) 1992-09-01
date of Publication (DOP) (4) 1993-03-01
date of Withdrawal (DOW) (5) 1993-03-01


Supersedes HD 388 S2:1983
Superseded by  
Normative reference (6) HD 214 S2:1980
HD 243 S12:1995
corr. October 1995
EN 60529:1991
corr. May 1993
EN 60598-1:1989
HD 444.2.1 S1:1983
HD 495 S1:1987
EN 61048:1993
corr. December 1998

(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.