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|  DSH 723
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! x4 L! P, u+ M% Q& d ?: [ | Components/ s3 s! e6 _0 T- ~) ]. X
| 24.102.2 P" Z9 n, n, T& N" N9 d- L3 `$ N
| 60335-2-21(ed.5)
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+ K7 A& [8 k$ q9 x- QQuestion:
" t1 X/ h! t- v% wIn IEC 60335-2-21:2002 / A1:2004 the last paragraph states:
5 p5 Z' A. m _! m$ M: JThe thermal cut-out shall operate before its temperature exceeds 110 °C. The water temperature shall not exceed by more than 20 °K the maximum permitted operating temperature of the thermal cut-out./ m% q+ @6 o9 v6 G
Considering the above statement, which is the maximum temperature of the water to be measured:
6 A& G8 N* ?0 P5 L& ka) 130 °K(110 °K+ 20 °K) or* [, J+ I, d2 @7 ?8 k0 v; E& n J4 Z
b) Maximum measured operating temperature of the thermal cut-out during test +20 °K?; X- a0 K' H$ P$ [6 c
Decision:: I7 Z! c1 {6 J
The correct interpretation is 130 °C. (option a)
6 ^- v( v/ L( Z/ D, V$ `/ ?9 C n: i1 W
6 w& Z! O: B- F |
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发表于 2012-9-8 11:42
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