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标题: 我就问两句 [打印本页]
作者: jcyxb    时间: 2016-5-3 17:58
标题: 我就问两句
1.  Easily touched surfaces of equipment RATED for a maximum ambient temperature above 40 °C+ {8 K8 d4 {1 S8 A
are permitted to exceed the values of Table 19 in NORMAL CONDITION, and to exceed 105 °C in
& m6 m: U$ }& Y  r+ F8 i) }( F6 ESINGLE FAULT CONDITION, by not more than the amount by which the maximum RATED1 q4 [* v2 P: \3 h/ r0 K
temperature exceeds 40 °C.% z' e$ a" ^/ @+ P: C
2.If easily touched heated surfaces are necessary for the processing or heating of materials, or" a4 \) d0 e& \6 v
where otherwise not avoidable, they are permitted to exceed the values of Table 19 in NORMAL! k5 M" V# ~' J9 H% ~
CONDITION and to exceed 105 °C in SINGLE FAULT CONDITION, provided that they are
* o2 l' D4 ?# C# U) s- [, nrecognizable as such by appearance or function or are marked with symbol 13 of Table 1.
" V9 c9 K3 ^8 _1 P. C" FEquipment heated by its environment to temperature values exceeding the values in Table 19
6 c  @4 V9 S& k6 ain NORMAL CONDITION and 105 °C in SINGLE FAULT CONDITION need not to be marked with% E- ]3 V6 A0 @9 i
symbol 13/ g2 c8 A* _% _! P
我就想问下红色的两句是什么意思，谢谢,理解起来很纠结
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作者: passagere    时间: 2016-5-3 19:02
本帖最后由 passagere 于 2016-5-3 19:03 编辑
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1、允许在正常情况下超过表中的温度值，以及在单故障情况中超出105度温度，但超出的温度差值不允许超过最高额定温度值-40度的差值。
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0 K/ F: ~% L, M) w- Z1 h举例：exceed 40 by 10 degrees的意思是超出40度10度，那么温度超过表中的温度值和单故障105度值时，超出值不能超过原有限值或105度10度。如单故障情况的105度，可以超出105度，但温度值不能超过105+10=115度。5 C# i& K: g0 o/ x% j9 @1 P- h6 W

) B/ Y( R( x1 u, ~) J' D, S- ?) e2. 由于环境温度升高而导致温度升高，并超出...值的装置，不需要标识13#标记。
作者: jcyxb    时间: 2016-5-4 08:56
passagere 发表于 2016-5-3 19:02 % v3 l3 I4 W) H$ F% p0 a
1、允许在正常情况下超过表中的温度值，以及在单故障情况中超出105度温度，但超出的温度差值不允许超过最高 ...
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谢谢



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