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标准有说的:4 O& V! e7 C5 O2 x: D! h% o2 `
9.2第6段:
2 j% t, V. B2 \* {Luminaires shall be mounted and wired as in normal use and placed in the most unfavourable/ o" m: h, p4 j( _- _
position, complete with their protective translucent covers, if any, for the tests of 9.2.0 to 9.2.9.
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另外,对于起防水作用的螺旋盖:$ k$ u; ?/ K# g, e; c
Screwed lids shall be tightened with a torque having a value in newton metres numerically
* J, l8 X" K; w' W( v8 ]& Pequal to one-tenth of the nominal diameter of the screw thread in millimetres. Screws fixing! `7 K3 K7 |5 s' n4 o' Y4 i' S, m
other caps shall be tightened with a torque equal to two-thirds of that specified in Table 4.1.
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