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显然不行：
$ {5 j& g1 L* M( G2 W! V l/ Y7 g' Y6 Y5 e* T& j
7.2.4 Earthing terminals shall comply with the requirements of 4.7.3. The connection shall be* W2 U9 g: O# w. I2 S) ^8 b
adequately locked against accidental loosening.
) p+ _. K5 J; `. s# C7 Y$ _For screw terminals, it shall not be possible to loosen the clamping means by hand.
! G. S* g9 u% LFor screwless terminals, it shall not be possible to loosen the clamping means unintentionally.% x; X, L9 i7 F! B/ ]
Compliance is checked by inspection, by manual test and by the tests specified in 4.7.3.; W# |% f4 \1 e: U
NOTE In general, the designs commonly used for current-carrying terminals provide sufficient resilience to comply
( V% S. ?. X( Y$ t6 Awith this requirement; for other designs, special provisions, such as the use of an adequately resilient part which is
: c' n" t9 m3 Z" Xnot likely to be removed inadvertently, may be necessary.# }# b- P+ o+ p1 n
For terminal blocks with integrated screwless earthing contacts, the additional tests of Annex V3 w4 F- y) H: ~* c# j4 q+ ^& q& D
apply. |
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