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EN 60598-1: K; a- {( E: ~
The sample is mounted or supported as in normal use on a rigid wooden board, cable entries( J! ~1 d" s. `& W1 v
being left open, knockouts opened, and cover-fixing and similar screws tightened with a torque% B0 U- g) C9 x- I
equal to two-thirds of that specified in Table 4.1.
1 G0 e7 M2 N2 k' {% W$ f& @5 xThree blows shall be applied to the point which is likely to be the weakest, paying special% C, Y0 |; i& d! Q5 w T
attention to insulating material enclosing live parts and to bushings of insulating material, if9 B) Y/ N5 f7 r( }, g1 N7 v
any. Additional samples may be necessary to find the weakest point; in case of doubt, the test
/ d7 e) F- u& l1 \# y& X9 k2 ?2 [. n2 [shall be repeated on a fresh sample to which three blows only are applied. |
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