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显然不行:
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4 M1 a! l7 P: g" R7.2.4 Earthing terminals shall comply with the requirements of 4.7.3. The connection shall be; k% Y5 b9 e4 s
adequately locked against accidental loosening./ A$ b! I9 u! k
For screw terminals, it shall not be possible to loosen the clamping means by hand.
: M) h6 s8 v; H; Q: oFor screwless terminals, it shall not be possible to loosen the clamping means unintentionally.# i% v0 U/ s$ t) l4 y i/ ~2 u
Compliance is checked by inspection, by manual test and by the tests specified in 4.7.3.* k* L2 Q0 s9 D9 @5 i7 W
NOTE In general, the designs commonly used for current-carrying terminals provide sufficient resilience to comply. A! x5 K9 j- W' a& m+ y6 |
with this requirement; for other designs, special provisions, such as the use of an adequately resilient part which is
7 U. I# l9 G b5 T. c& Fnot likely to be removed inadvertently, may be necessary.
- Z2 C% J6 }7 e+ G8 F, hFor terminal blocks with integrated screwless earthing contacts, the additional tests of Annex V
( z8 K& g9 c% V# K+ f6 Z' qapply. |
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