IEC 60320-1 clause 23.6试验时如何加压力？

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IEC60335试验指甲

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.
NOTE 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
3 ^3 i8 P. q& Z3 trectangular 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
) }+ j% Y& K3 d5 R/ I9 ^# [/ Q! L: f- {force as specified in figure 22.
5 `$ u0 i- {* N  G  o* eThe apparatus with the specimen in position is kept in a heating cabinet at a temperature of
& G: z% S0 S. Z, E$ ~$ Z9 `( a70 °C ± 2 °C for 2 h.
7 d/ y  b2 D! N+ ~2 e/ a  }问题：如何在70 °C的温度下对A片和B片加压力？