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|  DSH 723
! \ g, |5 j: k" @1 `( Y% h2 q/ v; w
| Components! H% N+ ?7 h; i. p! A6 ~; G
| 24.102.2# } h, J% W4 Y2 h7 s& S- V+ }, Z* E
| 60335-2-21(ed.5)
& ]' u0 m# g2 o3 a- R! C% _ |
- U6 i9 |3 v) e4 O8 M) h
Question:6 b) C! {1 i5 u
In IEC 60335-2-21:2002 / A1:2004 the last paragraph states:
' t4 t7 R' s. e2 U# N7 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.3 B: c) y0 I5 V
Considering the above statement, which is the maximum temperature of the water to be measured:8 s% S% \ ^- M; }$ K
a) 130 °K(110 °K+ 20 °K) or
5 S* g# j, Y+ \) T, lb) Maximum measured operating temperature of the thermal cut-out during test +20 °K?2 q# B6 d! l t- R1 I; A
Decision:
( C3 R2 g6 H6 _* K! CThe correct interpretation is 130 °C. (option a)1 d. N5 N! Z; ]
: t/ v, D# a0 L6 |+ j9 |' ~+ F
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发表于 2012-9-8 11:42
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