IEC60335-2-24 Figure 102 Scratching Tool 

    All accessible surfaces of protected cooling system components, including accessible surfaces in intimate contact with protected cooling systems, are scratched using the tool whose tip is shown in Figure 102

Force at right angles to the surface to be tested 35N±3N

Force parallel to the surface to be tested not exceeding 250N

The tool is drawn across the surface to be tested at a rate of approximately 1 mm/s

The surface to be tested is scratched at three different positions in a direction at right angles to the axis of the channel and at three different positions on the channel in a direction parallel to it. In the latter case, the length of the scratch shall be approximately 50mm.

The scratches shall not across each other.

Sherry Xu

Tel:+86-0755-21518810

Email:sherryxu@jusdatest.com