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标准有说的:$ D+ C4 M. I$ G! u8 D" f
9.2第6段:7 `2 B% g7 I3 m9 [, E$ ~
Luminaires shall be mounted and wired as in normal use and placed in the most unfavourable
8 v: J+ ~( ?; ]4 ]position, complete with their protective translucent covers, if any, for the tests of 9.2.0 to 9.2.9.5 j% R1 F8 m5 a; P
1 F9 `- H$ M7 }* }) i另外,对于起防水作用的螺旋盖:
! F+ h5 |9 \1 `* f1 G2 ^Screwed lids shall be tightened with a torque having a value in newton metres numerically1 [! {* e8 @- }* s+ L
equal to one-tenth of the nominal diameter of the screw thread in millimetres. Screws fixing+ ^+ w, @! E" W' a e& M7 ]
other caps shall be tightened with a torque equal to two-thirds of that specified in Table 4.1.* C Q I* B" Z; T# g- l
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