IEC 60320-1 clause 23.6试验时如何加压力？

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23.6 For 2,5 A connectors for class II equipment according to standard sheet C7, the area
where the switch cam(s) can touch the connector shall be sufficiently resistant to deformation.
/ W- O5 y( C9 p3 KNOTE This area is indicated by "3)" on standard sheet C7.
Compliance is checked by the following test, which is made by means of an apparatus having a
: q- \& b: \' N% L8 @# Hrectangular blade as shown in figure 22. The test is made with blade A and with blade B
successively, which are pressed against the connector body in the area to be checked, with the
9 z, k4 Y) N6 Iforce as specified in figure 22.
The apparatus with the specimen in position is kept in a heating cabinet at a temperature of
70 °C ± 2 °C for 2 h.
1 j$ m9 [( K* g8 x& y) R% x. p/ r问题：如何在70 °C的温度下对A片和B片加压力？