EN 60529 Chaged to IEC 60529 of Test Probe

I. European standard
The European standard is the evolution of a coding system that was introduced EN60529 for the first time in 1934 in Germany. It was first introduced into various national standards and then into international recommendations as well
(see Section 18)
1. Numeration
A special explanation follows to provide greater clarity of the numbering system:
Due to the complicated structure of DIN,DKE and VDE and the interests of the publishers responsible for the marketing of standards(VDE and Beuth) made it necessary to establish a designation as »DIN VDE 0470, Part 1« for the first edition.

SMT IP2CT_AL

The numerical series VDE 0470 concerned itself only with testing units and testing methods; Part 1 in the edition 12.84 applied to the jointed test finger. Users of these standards will hardly expect a basic standard under this numerical series such as the  determination for the degrees of IP protection. Beginning with the 2nd edition the number is DIN EN 60529 (VDE 0470,Part 1).
Consumers,designers, authors of technical instructions and catalogs were well advised to use the designation»European standard EN 60529« from the beginning.
1.1 Designation of new standards
International Standard IEC 60529 2ndedition:1989 +A1:1999 European Standard EN 60529: 1991 +A1:2000
German Standard DIN EN 60529 (VDE 0470, Part 1): 2000

1.2 Fundamental changes
The primary focus of the revision of the IEC 60529 was the clarification of fundamental determinations that had been interpreted differently in some cases as they were transferred into almost 25 national standards(Fig.2.2.1): Designation with the first code number 2 (IP2X)requires testing with the jointed test finger and the 12.5 mm sphere. Opening widths that are larger
than 12.5 mm are therefore not permitted with this degree of protection.

In order to clarify that the jointed test finger with a diameter of 12 mm can penetrate an enclosure in its entire length of 80 mm, the nominal diameter of the sphere was changed from 12 to 12.5 mm. According to previous determinations this type of penetration with the same nominal diameters was possible only within the different tolerance zone positions. It was therefore not clear whether the use of both access probes was required.

The original dimension specified in IEC 144 [1] (with a sphere diameter of 12.5 mm) was again included. New specifications were established in the revision of IEC 60529 for probes to test the protection against contact with tools, wire or other objects. It was also clearly defined that the selected dimensions was simply a matter of conventiong. A length of 100 mm was established for the active part of the probe that penetrates the enclosure. The spherical>stop face« is designed to simulate the angled joints of the finger holding the »toole (see Section 3.3.2.4). The expansion of the IP Code is laid out so that there are no essential changes for the design and testing of machines in the consistent application of earlier specifications,reflecting an urgent request from various technical sectors and national committees.

IEC 60529 Test Sphere ¦µ12.5mm with Dynamometer 50N

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