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显然不行:
* k9 s S' x/ f; C. d9 [
1 n1 `7 ]) D4 {* L; h2 x7.2.4 Earthing terminals shall comply with the requirements of 4.7.3. The connection shall be
. F( |8 Q. e2 }$ ^1 @adequately locked against accidental loosening.
% g# G( C# w. u0 X1 G0 i9 R) KFor screw terminals, it shall not be possible to loosen the clamping means by hand.
. t) Y: i* G% [6 {; [5 \For screwless terminals, it shall not be possible to loosen the clamping means unintentionally.
# R* x( ~ M- ICompliance is checked by inspection, by manual test and by the tests specified in 4.7.3.
. P# V5 E: g: l! H7 B. b9 Y/ E1 MNOTE In general, the designs commonly used for current-carrying terminals provide sufficient resilience to comply0 `# }5 m& S" t
with this requirement; for other designs, special provisions, such as the use of an adequately resilient part which is
% Q7 E$ J4 u" m1 R) N9 S5 x# mnot likely to be removed inadvertently, may be necessary.
; t! e# Y" B8 rFor terminal blocks with integrated screwless earthing contacts, the additional tests of Annex V& c* O+ V0 s* M
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