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标准有说的:
6 L/ W$ |% J# p5 x( Z( m9.2第6段:
, N9 c$ b5 H- G# \- M% p; NLuminaires shall be mounted and wired as in normal use and placed in the most unfavourable( u+ U+ M+ W& t) k. \5 T p
position, complete with their protective translucent covers, if any, for the tests of 9.2.0 to 9.2.9.) D! @* [' k! X+ A
( s2 n3 }: q) w( y v# S0 q4 U另外,对于起防水作用的螺旋盖:
6 J# C0 k3 _ z+ U2 BScrewed lids shall be tightened with a torque having a value in newton metres numerically
2 D- e4 B5 T. r3 V4 sequal to one-tenth of the nominal diameter of the screw thread in millimetres. Screws fixing; T8 v7 b1 J$ z$ T! Y% w. B
other caps shall be tightened with a torque equal to two-thirds of that specified in Table 4.1. b% J! }. o: N
& { D0 i0 S# R; w2 v% s |
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