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EN 60598-1:2 `' c2 _! r; I% |& w' n. c7 _
The sample is mounted or supported as in normal use on a rigid wooden board, cable entries% b6 l$ n2 q0 x3 z
being left open, knockouts opened, and cover-fixing and similar screws tightened with a torque3 K7 f; g: d$ F% T0 `) d
equal to two-thirds of that specified in Table 4.1.
( x; d& ~& s% j6 u0 _$ z2 MThree blows shall be applied to the point which is likely to be the weakest, paying special0 k0 f1 A8 S' }- ^8 F! S& m. R; g
attention to insulating material enclosing live parts and to bushings of insulating material, if
) ~& H1 j' Y8 {( H- sany. Additional samples may be necessary to find the weakest point; in case of doubt, the test
( I3 s' G6 ]! F. f& F: n3 Wshall be repeated on a fresh sample to which three blows only are applied. |
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