IEC 60352-1:1997 pdf download – Solderless connections -Part 1: Wrapped connections – General requirements, test methods and practical guidance

IEC 60352-1:1997 pdf download – Solderless connections -Part 1: Wrapped connections – General requirements, test methods and practical guidance.
This part of IEC 60352 is applicable to wrapped connections made with single solid round wires with nominal diameters of 0,16 mm minimum and appropriately designed posts for use In telecommunications equipment and In electronic devices employing similar techniques.
Information on materials arid 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 tollowing 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.
lEG 60050(581): 1978, International Electrotechntcal Vocabulary (1EV) — Chapter 581: Electromechanical components for electronic equipment
lEG 60068-1: 1988. Environmental testing — Part 1: General and guidance Amendment 1 (1992)
IEC 60352-5: 1995. Solderless connections — Part 5: Solderless press-in connections — General requirements, test methods and practical guidance
IEC 60512-1: 1004, Electromechanical components for electronic equipment — Basic testing procedures and measuring methods — Part 1: General
lEG 60512-2: 1985. Electromechanical components lot 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 (1994)
lEG 60512-6: 1984, Electromechanical components lot electronic equipment: basic testing procedures and measuring methods — Part 6: Climatic tests and soldering tests
IEC 60512-8: 1993, Electromechanical components for electronic equipment: basic testing procedures arid measuring methods — Part 8: Connector tests (mechanical) and mechanical tests on contacts and terminations
IEC 60979 1989, Wires for wire wrapping applications
ISO 468: 1982. Surface roughness — Parameters, their values and general rules for specifying requirements
ISO 1337: 1980, Wrought coppers (having minimum copper contents of 99.85 %) — Chemical composition and forms of wrought products
ISO 65O71: 1982. Metallic materials — Hardness test — Vickers test – Part 1: HV 5 to HV 100
3.8 gas-tIght area: The part of the contact area that is not affected by gases under specified
conditions (see figure 1). 11EV 581-03-64]
3.9 strIpping force: The force applIed to the wrapped connection along the major axis of the
post which bteaks the gas-fight areas. (1EV 581 -03-551
NOTE — The ga .11gM erea are bi’oken by the irt.ai movement ot Pie Ooflnecl.041 &OflQ the poet.
310 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, (1EV 581-03-601
311 total post length: The length ole post from the mounting plane to the tip. [1EV 581-03-611
312 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 (1EV 581 -03-501
4 RequIrements
4.1 Womanship
The connections shall be processed in a careful and workmanlike manner, in accordance with good current ptactice.
4.2 Tools
Tools shall be used and inspected according to the Instructions given by the manufacturer.
4.2.1 Wrapping tools
The wrapping tool shall be capable of making uniformly reliable connections during its lifetime. It shall also make a neat closure of the last turn, without causing undue mutilation of the wrapping wire or posi. The hole in the bit shall have a depth sufficient to accommodate the total length of the post (see 6.2.1 and 6.3.5.3).
Tools are evaluated by testing wrapped connections made with the tools to be evaluated.
4.22 Unwrapping tools
Unwrapping tools shall not damage the post and shall completely remove the unwrapped wire from the post (see 6.2.2).