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1. Easily touched surfaces of equipment RATED for a maximum ambient temperature above 40 °C. I6 P6 ~, e2 x' m8 w, f& n, F6 H
are permitted to exceed the values of Table 19 in NORMAL CONDITION, and to exceed 105 °C in! R3 m# k& t4 o* l! M8 \/ Y) P
SINGLE FAULT CONDITION, by not more than the amount by which the maximum RATED$ O+ X0 U2 F) U0 L8 q
temperature exceeds 40 °C.
' N. q$ a/ i3 W' n/ h2.If easily touched heated surfaces are necessary for the processing or heating of materials, or! h6 Z/ V5 e7 l3 z' P% o
where otherwise not avoidable, they are permitted to exceed the values of Table 19 in NORMAL
$ k, D; A1 N' E9 f; K5 PCONDITION and to exceed 105 °C in SINGLE FAULT CONDITION, provided that they are4 g' Q0 u9 G/ w9 o! a; I
recognizable as such by appearance or function or are marked with symbol 13 of Table 1.& X/ L- l7 Y! Z
Equipment heated by its environment to temperature values exceeding the values in Table 19
4 q% ?" S" c- Sin NORMAL CONDITION and 105 °C in SINGLE FAULT CONDITION need not to be marked with
! [6 X: k% D0 v4 R8 C: Msymbol 135 C% X7 l5 h" Z- \5 l' @/ B; M- y
我就想问下红色的两句是什么意思,谢谢,理解起来很纠结# W0 Z( ~2 ~( p1 o6 o- J* b
+ U$ }* i7 C ? |
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