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



Reference CLC/TR 50427:2004
Title Assessment of inadvertent ignition of flammable atmospheres by radio-frequency radiation - Guide
Project Number 7259
Abstract/Scope This standard provides guidance in assessing the possibility of inadvertent extraction of energy from an electromagnetic field propagated from communication, radar or other transmitter aerials and the coupling of this energy to an EED in a manner capable of causing initiation. It does not cover the similar hazard arising from electromagnetic fields generated by other means, for example electrical storms, electricity generating plant or power transmission lines, nor does it cover the potential hazards that may arise in oil and gas exploration and production operations


Current Stage code 6060
Current Stage code date 2004-12-14
Current Stage code deadline  
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 31
Reference Document  
ICS 13.230 - Explosion protection
33.060.20 - Receiving and transmitting equipment
Keywords Radiation; Ignition; flammable atmosphere; Radio-frequency; Inadvertent
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2004-12-14   export to doc file  EN
5099 2004-08-28 2004-10-28  
5060 2004-08-28 2004-08-28  
5020 2004-05-21 2004-08-27  
3090 2004-02-03 2004-02-27  
3093 2003-09-09 2004-03-09  
3093 2002-09-12 2003-01-31  
3020 1997-10-06 2003-03-20  
1099 1996-03-05 1997-11-05  
1000 1990-10-31 1991-04-30  
1000 1990-07-19 1990-10-31  

Implementation Dates

date of Ratification (DOR) (1) 2004-08-28
date of Availability (DAV) (2) 2004-12-14
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Superseded by  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.