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1. Easily touched surfaces of equipment RATED for a maximum ambient temperature above 40 °C, T9 c: B8 s# F$ L5 V
are permitted to exceed the values of Table 19 in NORMAL CONDITION, and to exceed 105 °C in+ A$ |. u9 s8 v4 c+ G7 |
SINGLE FAULT CONDITION, by not more than the amount by which the maximum RATED# Y9 ~+ w- a) r" h& U8 F9 a
temperature exceeds 40 °C.
9 j- k. c9 ^( a5 v% @' G* p' j2.If easily touched heated surfaces are necessary for the processing or heating of materials, or" `& {: h$ ?' B8 Y G0 D
where otherwise not avoidable, they are permitted to exceed the values of Table 19 in NORMAL
3 B. F- a8 _8 pCONDITION and to exceed 105 °C in SINGLE FAULT CONDITION, provided that they are
. P+ u5 o Q+ a, Jrecognizable as such by appearance or function or are marked with symbol 13 of Table 1.
4 O! o) h) t% ]! N3 Y8 pEquipment heated by its environment to temperature values exceeding the values in Table 191 p1 G+ |5 r% O- ]" V/ q- n6 b$ V6 C
in NORMAL CONDITION and 105 °C in SINGLE FAULT CONDITION need not to be marked with
. F; W/ f5 t- S* ?: P" J. Zsymbol 13; M5 k- c2 C. Y7 m- A. `9 |
我就想问下红色的两句是什么意思,谢谢,理解起来很纠结3 o2 w- l, `; b5 B+ D3 S6 w3 o
1 Z3 _6 D' |- V# y" _# M' P# [1 W |
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