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显然不行:
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( D: m9 R3 I- z5 [5 t. ^7.2.4 Earthing terminals shall comply with the requirements of 4.7.3. The connection shall be
* y6 t6 c* w$ y7 B; j8 gadequately locked against accidental loosening.
2 x, m8 y- r/ R7 M, aFor screw terminals, it shall not be possible to loosen the clamping means by hand.6 y7 B- {& c& p% V; U4 R' f
For screwless terminals, it shall not be possible to loosen the clamping means unintentionally.
5 i( H) g* D+ A6 j0 I. T7 ?Compliance is checked by inspection, by manual test and by the tests specified in 4.7.3.
$ Y( ` m2 }) HNOTE In general, the designs commonly used for current-carrying terminals provide sufficient resilience to comply* m& O3 \ S/ x& w& G
with this requirement; for other designs, special provisions, such as the use of an adequately resilient part which is. J# A6 ~+ E) @9 U
not likely to be removed inadvertently, may be necessary.
0 ]: F" y) u8 ]( NFor terminal blocks with integrated screwless earthing contacts, the additional tests of Annex V
; d$ s# _7 I1 S: B+ m% d. }" japply. |
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