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|  DSH 723* N& p# d% p$ I: e
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| Components
9 j! E5 h. P) B, Y6 @) _; ~) o | 24.102.2# k5 L. R5 O* Z6 c6 S8 I; y- p
| 60335-2-21(ed.5)) t% q! D$ e# E) l
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Question:6 {" A7 G( C# I! G; W1 Q/ @# w
In IEC 60335-2-21:2002 / A1:2004 the last paragraph states:
4 Q6 e, K/ H5 s" C5 ]The 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.
* U2 x, Z' ?0 L' S9 H% EConsidering the above statement, which is the maximum temperature of the water to be measured:
+ X3 W' e. [0 L8 b- Va) 130 °K(110 °K+ 20 °K) or
' f1 l' n( z d: `/ C( _b) Maximum measured operating temperature of the thermal cut-out during test +20 °K?* Z5 i. p0 M& B. G; P S
Decision:& k( m, D1 T' b3 y
The correct interpretation is 130 °C. (option a)
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发表于 2012-9-8 11:42
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