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EN 60598-1:
( T4 e3 Y& ^. b; cThe sample is mounted or supported as in normal use on a rigid wooden board, cable entries$ G7 K; N9 o! J; W, n
being left open, knockouts opened, and cover-fixing and similar screws tightened with a torque" q; k" D* a8 Y* ?# _; q4 {' }1 v
equal to two-thirds of that specified in Table 4.1.& e/ M/ d1 H+ j' A: w+ Z* v
Three blows shall be applied to the point which is likely to be the weakest, paying special
/ Z' A" Q# q& E- I! D( A; E6 \attention to insulating material enclosing live parts and to bushings of insulating material, if
# c4 ?% t; w/ l- g) q1 `3 wany. Additional samples may be necessary to find the weakest point; in case of doubt, the test
9 p3 T: R, y' ]' R" Nshall be repeated on a fresh sample to which three blows only are applied. |
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