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



Reference HD 384.4.473 S1:1980
Title Electrical installations of buildings - Part 4: Protection for safety - Chapter 47: Application of protective measures for safety - Section 473: Measures of protection against overcurrent
Project Number 2242
Abstract/Scope Specifies where overload and short-circuit protective devices have to be placed in the run of the conductor. States particular requirements for protection of phase and neutral conductors according to TN, TT and IT systems. Note: -Requirements do not take account of external influences. For application of protective measures in relation to conditions of external influences, see IEC 60364-4-482.


Current Stage code 6060
Current Stage code date 1980-05-14
Current Stage code deadline 1981-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 64
Reference Document IEC 60364-4-473:1977 (MOD)
Keywords Building; Electrical installation; Overcurrent; Protection
Note Corrigendum to HD issued December 2005 * Superseded by HD 60364-4-43:2010 (see email from Secretary dated 2012-11-06 in dataservice)
A-Deviation(s) DK, IT
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1980-05-14 1981-10-01  

Implementation Dates

date of Ratification (DOR) (1) 1978-09-29
date of Availability (DAV) (2) 1980-05-14
date of Announcement (DOA) (3) dor + 6 months
date of Publication (DOP) (4) 1981-10-01
date of Withdrawal (DOW) (5) dor + 36 months


Supersedes HD_NO 25:200X
Superseded by HD 60364-4-43:2010
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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.