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



Reference EN 50191:2010
Title Erection and operation of electrical test equipment
Project Number 21474
Abstract/Scope 1.1 This European Standard is applicable to the erection and operation of fixed and temporary electrical test installations. 1.2 Compliance with this European Standard is not necessary, if contact with live parts presents no danger. This is the case when one of the following conditions is satisfied at live exposed points: a) the voltage at frequencies above 500 Hz does not exceed 25 V a.c. or 60 V d.c. and complies with the requirements for SELV or for PELV in accordance with HD 60364-4-41; b) in case of voltages at frequencies up to 500 Hz exceeding 25 V a.c. or 60 V d.c., the resultant current through a non-inductive resi¬stance of 2 k does not exceed 3 mA a.c. (r.m.s.) or 12 mA d.c; c) at frequencies above 500 Hz the national determined current and voltage values shall be applied. If there are no national requirements determined reference values for permissible body currents and contact voltages can be taken from Table A.1; d) the discharge energy does not exceed 350 mJ. NOTE 1 Even though compliance with the requirements of this European Standard is not necessary, if one of the above-mentioned conditions is satisfied, other potential risks e. g. risk of fire and explosion shall be considered and appropriate measures be taken. NOTE 2 Ref. 1.2 b) & 1.2 d): The values for the resultant current of 3 mA a.c. or 12 mA d.c. and the discharge energy of 350 mJ comply with the values for live working specified in EN 50110-1. These values also comply with the values specified in IEC/TS 60479-1. 1.3 This European Standard does not apply to the power supply to the test installations. In this case, the documents of the HD 60364 series (for nominal voltages up to 1 000 V) or HD 637 (for nominal voltages exceeding 1 kV) are applicable to erection and EN 50110-1 is applicable to operation. 1.4 Where no requirements are given in this European Standard, the documents of the HD 60364 series (for nominal voltages up to 1 000 V) or HD 637 (for nominal voltages exceeding 1 kV) apply to the erection of electrical test installations and EN 50110-1 applies to the operation of electrical test installations.


Current Stage code 6060
Current Stage code date 2010-10-15
Current Stage code deadline 2011-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 17.220.20 - Measurement of electrical and magnetic quantities
19.080 - Electrical and electronic testing
29.020 - Electrical engineering in general
Keywords Electrical; Test equipment; Erection; Operation
Note Revision of EN 50191:2000 allocated to CLC/BTTF 128-2 under DE convenorship * Supersedes EN 50191:2000
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-10-15 2011-10-01 export to doc file  EN  FR  DE
5099 2010-10-01 2011-02-01  
5061 2010-08-25 2010-10-01  
5060 2010-05-25 2010-06-25 export to doc file  EN
5020 2010-03-19 2010-05-21 export to doc file  EN  FR  DE
4099 2010-02-09 2010-05-15  
4060 2009-11-10 2010-02-10 export to doc file  EN
4020 2009-06-05 2009-11-06 export to doc file  EN
3099 2009-03-09 2009-06-30  
2020 2007-09-03 2008-02-27  
1099 2006-12-06 2007-09-03  

Implementation Dates

date of Ratification (DOR) (1) 2010-10-01
date of Availability (DAV) (2) 2010-10-15
date of Announcement (DOA) (3) 2011-04-01
date of Publication (DOP) (4) 2011-10-01
date of Withdrawal (DOW) (5) 2013-10-01


Supersedes EN 50191:2000
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.