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jsspace 发表于 2013-12-11 16:19 5 i: x {0 }6 s' n7 U% Z
满足以下三条:/ S! l. {/ t& ~* \% n/ ~0 O
1)首先要满足材料的温度限值,请参考60598.1 表12.2, 比如耐热PVC不能超过105度3 E1 }& G0 p6 B) w* S+ k+ d
2)对于 ... & D1 l5 S4 }. y0 _4 ]" F
讨论下关于您说的第二点。
. S: {5 L0 b- G1 _4 e% s6 y 在现行标准里面(IEC 60598-1:2007)貌似是如下说法:* w! `" G; B/ Y" _5 ?
Means of adjustment and its surrounding space9 ~6 I; |- j" r) K9 T
Metal parts 60: `2 L( x2 n1 O% C; z
Non-metal parts 75 / L1 k1 r- g$ Z. S5 z
并且这里有一个解释% t5 [$ v! B+ I1 h4 q
f, Not applicable to means of adjustment of ceiling mounted luminaires or luminaires recessed into the ceiling. Where the mounting instructions provide clear guidance to mount luminaires out of arms reach, the temperature limits for the means of adjustment are not applicable.# w7 X$ e7 V: ` |
那么如果像这种吊灯在人手不能触及的情况下是不是就没有这样子的限值!
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