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



Reference EN 50389:2005
Title Space product assurance - Wire-wrapping of high-reliability electrical connections
Project Number 15131
Abstract/Scope This standard specifies the methods for preparing and assembling the parts to be joined by wire wrapping, and the selection, calibration, use and certification of the wire wrapping tools. The required wire­wrapped connections are illustrated in Figure 1. This type of connection is similar to “Class A preferred” or “modified” connection detailed in MIL STD 1130, and NASA NHB 5300.4(3H). Only tested and qualified wire­wrapped connections are covered by this standard, which lists four wire sizes from 24 AWG to 30 AWG, and three terminal post sizes up to 1,78 mm maximum diagonal. The use of thicker wire and larger terminals are not advised. Thicker wire than 24 AWG is generally multistranded and terminated by soldering (see ECSS Q 70 08) or by crimping (see ECSS Q 70 26). Training and certification requirements for operators and inspectors are defined in 9.7 and in EN 13291 1.


Current Stage code 6060
Current Stage code date 2005-09-28
Current Stage code deadline 2006-08-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 107
Reference Document  
ICS 49.060 - Aerospace electric equipment and systems
Keywords Connection; High-reliability; Wire-wrapping; Space product assurance
Note D115/138: BTTF 91-3 disbanded - Work allocated to TC 107X (DE)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2005-09-28 2006-08-01 export to doc file  EN  DE
5099 2005-08-01 2005-12-01  
5020 2005-03-25 2005-06-24  
4099 2005-02-03 2005-05-03  
4060 2003-01-24 2003-06-20  
4020 2002-07-19 2003-01-17  
3099 2002-03-05 2002-08-05  

Implementation Dates

date of Ratification (DOR) (1) 2005-08-01
date of Availability (DAV) (2) 2005-09-28
date of Announcement (DOA) (3) 2006-02-01
date of Publication (DOP) (4) 2006-08-01
date of Withdrawal (DOW) (5) 2008-08-01


Superseded by  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.