IEC 60352-1:1997 pdf download.Solderless connections – Part 1: Wrapped connections – General requirements, test methods and practical guidance
1 Scope and object
This part of IEC 60352 is applicable to wrapped connections made with single solid round wires with nominal diameters of 0,1 6 mm minimum and appropriately designed posts for use in telecommunications equipment and in electronic devices employing similar techniques. Information on materials and data from industrial experience are included in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions. The object of this standard is to determine the suitability of wrapped connections under specified mechanical, electrical and atmospheric conditions, and to provide a means of comparing test results when the tools used to make the connections are of different design or manufacture.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60352. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60352 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60050(581 ): 1 978, International Electrotechnical Vocabulary (IEV) – Chapter 581 : Electro-
mechanical components for electronic equipment
IEC 60068-1 : 1 988, Environmental testing – Part 1 : General and guidance
Amendment 1 (1 992)
IEC 60352-5: 1 995, Solderless connections – Part 5: Solderless press-in connections –
General requirements, test methods and practical guidance
IEC 6051 2-1 : 1 994, Electromechanical components for electronic equipment – Basic testing
procedures and measuring methods – Part 1 : General
IEC 6051 2-2: 1 985, Electromechanical components for electronic equipment; basic testing
procedures and measuring methods – Part 2: General examination, electrical continuity and
contact resistance tests, insulation tests and voltage stress tests
Amendment 1 (1 994)
IEC 6051 2-6: 1 984, Electromechanical components for electronic equipment; basic testing
procedures and measuring methods – Part 6: Climatic tests and soldering tests
IEC 6051 2-8: 1 993, Electromechanical components for electronic equipment; basic testing
procedures and measuring methods – Part 8: Connector tests (mechanical) and mechanical
tests on contacts and terminations
IEC 60979: 1 989, Wires for wire wrapping applications
ISO 468: 1 982, Surface roughness – Parameters, their values and general rules for specifying
requirements
ISO 1 337: 1 980, Wrought coppers (having minimum copper contents of 99,85 %) – Chemical
composition and forms of wrought products
ISO 6507-1 : 1 982, Metallic materials – Hardness test – Vickers test – Part 1 : HV 5 to HV 1 0
3 Definitions
For the purpose of this part of IEC 60352, the terms and definitions included in IEC 60050(581 )
and IEC 6051 2-1 and the following additional terms and definitions apply.
3.1 wrap post: A termination generally rectangular with sharp corners made to accept a
wrapped connection. [IEV 581 -03-34, modified]
NOTE – In this standard, the term “wrap post” is shortened to “post”.
3.2 wrapped connection: A solderless connection achieved by wrapping a solid conductor
around a wrap post (see figure 1 ). [IEV 581 -03-1 0, modified]
3.3 conventional wrapped connection: A solderless connection achieved by wrapping a
solid conductor around a wrap post without any contact of the wire insulation to the post (see
figure 2a). [IEV 581 -03-45]
3.4 modified wrapped connection: A solderless connection achieved by wrapping a solid
conductor around a wrap post with the wire insulation wrapped around at least three corners of
the post (see figure 2b). [IEV 581 -03-44]
3.5 turn of wire: A single helical ring of wire wrapped 360° around a wrap post. [IEV 581 -03-65]
3.6 reference corner: That corner of the wrap post at which the stripped wire makes
its first indentation and from which the number of wrapped turns is counted (see figure 2).
[IEV 581 -03-38]
3.8 gas-tight area: The part of the contact area that is not affected by gases under specified
conditions (see figure 1 ). [IEV 581 -03-64]
3.9 stripping force: The force applied to the wrapped connection along the major axis of the
post which breaks the gas-tight areas. [IEV 581 -03-55]
NOTE – The gas-tight areas are broken by the initial movement of the connection along the post.
3.1 0 effective wrapping length: That portion of a wrap post suitable and available for the
application of the wrapped connection for which all requirements are fixed. [IEV 581 -03-60]
3.1 2 total post length: The length of a post from the mounting plane to the tip. [IEV 581 -03-61 ]
hoop stress: The tension in the wire induced by the wrapping operation and maintained
by the wire being locked on the corners of the post. [IEV 581 -03-50]
IEC 60352-1:1997 pdf download
