IEC 60352-7:2002 pdf free download

IEC 60352-7:2002 pdf free download Solderless connections – Part 7: Spring clamp connections – General requirements, test methods and practical guidance
1 Scope and object
This part of IEC 60352 is applicable to spring-clamp connections made with stripped wire without further preparation:
– solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm 2 to 1 0 mm 2 crosssection), or
– stranded conductors of 0,08 mm 2 to 1 0 mm 2 cross-section, or
– flexible conductors of 0,08 mm 2 to 1 0 mm 2 cross-section
according to IEC 60228 or IEC 601 89-3 for use in telecommunication equipment and in electronic devices employing similar techniques.
Information on materials and data from industrial experience is included in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions.
The object of this part of IEC 60352 is to determine the suitability of spring-clamp connections under specified mechanical, electrical and atmospheric conditions.
NOTE IEC Guide 1 09 advocates the need to minimize the impact of a product on the natural environment throughout the product life cycle. It is understood that some of the materials permitted in this standard may have a negative environmental impact. As technological advances lead to acceptable alternatives for these materials, they will be eliminated from this standard.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050(581 ):1 978, International Electrotechnical Vocabulary (IEV) – Chapter 581: Electro-mechanical components for electronic equipment
Amendment 1 (1 998)
IEC 60068-1 :1 988, Environmental testing – Part 1: General and guidance Amendment 1 (1 992)
IEC 601 89-3:1 988, Low frequency cables and wires with PVC insulation and PVC sheath – Part 3: Equipment wires with solid or stranded conductor, PVC insulated, in singles,pairs and triples
IEC 60228:1 978, Conductors of insulated cables Amendment 1 (1 993)
IEC 6051 2 (all parts), Connectors for electronic equipment – Tests and measurements
3 Definitions
For the purpose of this part of IEC 60352, the terms and definitions of IEC 60050(581 ) and IEC 6051 2-1 and the following additional terms and definitions apply:
3.1
spring-clamp termination
part of the contact or terminal to which one single conductor only is connected by means of a spring
3.1 .1
universal spring-clamp termination
spring-clamp termination intended to accept solid, stranded and flexible unprepared conductors
3.1 .2
non-universal spring-clamp termination
spring-clamp termination intended to accept conductors of one class only, for example
solid conductors only, or conductors of two classes only, for example solid and stranded but not flexible
3.1 .3
push-in spring-clamp termination
non-universal spring-clamp termination in which the connection is made by pushing in a solid or stranded conductor
3.2
spring-clamp connection
solderless connection achieved by clamping a conductor with a spring-clamp termination,see figure 1