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



Reference HD 60364-5-56:2010/A1:2011
Title Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services
Project Number 23186
Abstract/Scope IEC 60364-5-56:2009 covers general requirements for safety services, selection and erection of electrical supply systems for safety services and electrical safety sources. Standby electrical supply systems are outside the scope of this part. This part does not apply to installations in hazardous areas (BE3), for which requirements are given in IEC 60079-14. This second edition of IEC 60364-5-56 comes about as a result of changes to Clause 556, Safety services, of IEC 60364-5-55 (2001), as modified by its amendment 1 (2001). It replaces Clause 556 of IEC 60364-5-55:2001. Clause 556 is to be withdrawn at the time of publication of this new Part 56. The main changes with regard to the previous edition are listed below:
1) Many more definitions are included, e.g. response time, central power supply system, low power supply system, preferential circuit and escape route.
2) Automatic supplies are now classified according to the maximum changeover times, for example a supply classified as short break means an automatic supply is available within 0,5 s.
3) Safety sources that can operate in parallel are specifically recognized in 560.6.9.
4) Requirements are now given for batteries used for safety sources for central and low power supply sources.
5) Drawings are now required, such as a single-line diagram, drawings showing the location of equipment and a list of equipment permanently connected to the safety power supply.
6) Operating instructions are now required.
7) Detailed requirements are now given for emergency escape lighting applications, direct current circuits and fire protection applications.
8) Additional requirements for initial verification and periodic inspection and testing are now included in the standard.
9) Two annexes are now included (Annex A and Annex B) giving guidance for emergency lighting and guidance for fire protection equipment, respectively.


Current Stage code 6060
Current Stage code date 2011-12-16
Current Stage code deadline 2012-12-12
Deadline date for vote 2012-11-01


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 91.140 - Installations in buildings
Keywords Low-voltage; Safety
Note Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-12-16 2012-12-12 export to doc file  EN  FR  DE
5099 2011-12-12 2012-01-09  
5060 2011-11-07 2011-11-28 export to doc file  EN
5020 2011-06-03 2011-11-04 export to doc file  EN  FR
3090 2011-05-25 2011-06-03  
1099 2010-11-17    
1000 2010-04-21 2010-11-18  

Implementation Dates

date of Ratification (DOR) (1) 2011-12-12
date of Availability (DAV) (2) 2011-12-16
date of Announcement (DOA) (3) 2012-06-12
date of Publication (DOP) (4) 2012-12-12
date of Withdrawal (DOW) (5) 2014-12-12


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.