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|  DSH 546# Q( b, ?; a1 Y) `# q$ X" O
# V$ t5 I% s( \: p | Relative humidity9 i/ z" ^5 }0 z! a, o1 ]7 F0 o
| 10.2 (IEC 60065/2001) 15.3 (IEC 60335-1/2001) 4.10 (60601-1/1988 +A2/1995) 6.8.2 (IEC 61010-1/2001)* h0 j( j9 E& z+ V- ~8 F8 `
| 60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)
( q& Y& {8 D [& U |
! ]. w) G. p6 ?3 _2 {Question:
|0 x0 u n' y+ C" u$ h) Z; c, c3 B0 YVarious IEC standards require that specific tests be performed in a humidity chamber. The
3 T/ t7 { z3 h% Z& K dspecification of the relative humidity is in several formats. How should the tolerance on the( M$ y' V, V7 @; Q
relative humidity specification be interpreted?2 ~7 ]6 H% w5 _( R4 }* }
Decision:
/ _. W% [ i8 ^6 b) e% f$ Y' K(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
# M7 f, V9 L) [. M: Ube in percent relative humidity, % RH.5 {7 L8 t- ?3 b
(2) It is intended that the set point of the humidity chamber controller be set within the5 m3 R T& n. T; Y1 H' R% o
specified range and that the humidity remains within the specified range.
( Y7 s: X e" v1 H* J(3) Confirmation that humidity is within the specified range shall be made by a humidity% o+ }) {' ?( J7 J
measuring instrument according to CTL DSH 251A.3 w, Y: ~) [' o+ c4 q; V) b* b7 b
0 R2 y/ K( d; j2 N# c4 Q0 ~6 s" V. S; s8 c0 k @
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发表于 2012-9-9 15:40
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