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



Reference ENV 50235:1997
Title Aeronautical ground lighting electrical installation - Signs: Equipment specifications and tests
Project Number 7222
Abstract/Scope This standard covers signs installed in the movement area to provide pilots and vehicle operators with information. The Standard is applicable to signs with built-in illumination arrangements using tungsten filament, tubular flourescent and other discharge lamps on supply voltages not exceeding 1000 V. The standard shall not apply to non-illuminated signs or signs illuminated by external light sources. The object is to provide design and construction specifications for the signs that are considered necessary to meet the operational standards adopted by ICAO and to cover all aspects of safety (electrical, thermal and mechanical). The signs may be energised from parallel power supply or by connection to a constant current series circuit used for taxiway or runway lighting systems.


Current Stage code 6060
Current Stage code date 1997-02-05
Current Stage code deadline 1998-07-02
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 97
Reference Document  
ICS 93.120 - Construction of airports
Keywords Lighting; Aviation ground lighting installation; Sign
Note D110/074: CLC/TC97X renamed CLC/TC97 * Will be surperseded by CLC/prTS 50235 (PR=14135)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1997-02-05 1998-07-02  
6020 1996-08-02 1996-11-02  
5099 1996-07-02 1996-08-02  
5062 1996-06-11 1996-07-02  
5020 1996-01-26 1996-04-30  
1090 1995-11-30 1996-05-31  
3060 1995-10-19 1995-11-30  

Implementation Dates

date of Ratification (DOR) (1) 1996-07-02
date of Availability (DAV) (2) 1997-02-05
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  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.