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|  DSH 546, e. I# j0 o: Z& |
9 z3 j; I3 ~, N/ L. _. j0 @
| Relative humidity( [/ o$ h' l$ @
| 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)
- H2 d2 z2 X5 q o& t) y | 60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)) |$ J* u: i' t+ r, n1 d( N
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4 i9 e. H3 ]# d" d
Standard(s):& D6 q- [$ f9 m* ~% Y7 W: v
IEC 60065/2001' A, H2 q& K0 z- e1 `* v
IEC 60335-1/2001
4 v5 I+ r K1 s4 YIEC 60601-1/1988 + A2/1995- v+ H6 C9 l2 _( {
IEC 61010-1/20016 L+ {0 [1 }! z1 j v @
Sub clause(s):
6 [) z' x; ^' L1 O10.2
* G& l& }# p+ J& r15.36 k( c E+ k$ U6 V
4.103 _& \2 N3 O1 L8 J! b# h# R
6.8.27 e7 ?- i7 {( x9 \: `! e
Sheet N°:
5 y* y* i# f8 A( j: r* a+ N1 sDSH - 546
5 Q( ^- U, l' M! w8 [$ S }) ESubject: Relative humidity Key words:
7 g& e0 n0 E( {1 r0 f3 a7 r [- Relative humidity
6 C1 y$ F4 x w) M6 v- Range
' f' ]. w, j4 Y ~! I# Y% K- Percentage
7 ^3 B" l3 ?6 G& q# D$ P- IECEE-CTL/193/INF
6 H4 _5 ?+ X1 Y0 @( s% QDecision taken at the
7 `, p5 B% I6 |" C6 l& ]' C+ y- \& ?1 }( h41st CTL meeting.6 w& Y, Y' N2 _0 x1 [
Question:
! {: Q- G6 m& m) j( e3 zVarious IEC standards require that specific tests be performed in a humidity chamber. The8 ^( {$ b( P7 t/ u5 E
specification of the relative humidity is in several formats. How should the tolerance on the
& }, R7 l- g4 q' y' ]; v- Lrelative humidity specification be interpreted?
9 G! P4 \/ _, {( |% vDecision:
" R4 b. y. H3 [3 G, J" A(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
- }! I; s; D. ]7 D2 p: h8 @: b' ibe in percent relative humidity, % RH.% H; |5 H \9 E* Z" M1 t/ A
(2) It is intended that the set point of the humidity chamber controller be set within the7 {3 B) w+ s- Z3 e t F) Q
specified range and that the humidity remains within the specified range.. A6 j3 C; _7 y+ R: y B
(3) Confirmation that humidity is within the specified range shall be made by a humidity
! w1 O7 u: m8 b6 z1 I1 Y8 dmeasuring instrument according to CTL DSH 251A.
5 m6 O h7 S* Z+ X& g. B1 x! I" }! _4 ?
' j' ^$ X3 D3 G7 M1 | |
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发表于 2012-11-8 18:27
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