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标题: DSH 723 Components [打印本页]

作者: 小米    时间: 2012-9-8 11:42
标题: DSH 723 Components
DSH 723
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Components/ G% h. [( J$ B* O" N5 B8 }* `
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60335-2-21(ed.5)6 L; e  m$ m" M: `

0 V+ k' m) F/ Q* s: wQuestion:- Q/ H3 D( w, n2 O
In IEC 60335-2-21:2002 / A1:2004 the last paragraph states:& e, ]; w5 ?8 k' n7 e
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.
3 G7 K8 [& [0 q' O1 LConsidering the above statement, which is the maximum temperature of the water to be measured:* i4 D+ v/ L8 N9 L  ?" H5 b' w8 z" h
a) 130 °K(110 °K+ 20 °K) or
  A9 U9 K& b, L: Z; g5 Mb) Maximum measured operating temperature of the thermal cut-out during test +20 °K?2 r4 U1 D0 H! F" C' ^
Decision:
9 E2 K7 g7 B8 V0 EThe correct interpretation is 130 °C. (option a)8 E2 `* `' m/ ]+ ]
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