DSH 546 Relative humidity

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IEC60335试验指甲

DSH 546 ; B/ D" l9 z' r" p / l* R" {% s  K

Relative humidity 5 ^5 j% O; G* s1 x9 f2 X% ~

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) 7 [6 U2 j, \7 c7 _1 s9 h

60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)

$ A) F- B. P6 w+ {' c9 \Standard(s):
5 l) |/ f$ \& R  Z6 R! UIEC 60065/2001
! R/ d* J. H* p9 C, s. L" _IEC 60335-1/2001
5 `: p4 R. ^1 |# L0 BIEC 60601-1/1988 + A2/1995
" @$ R  U- I; X/ VIEC 61010-1/2001
3 G1 W. j' Z7 o: V5 gSub clause(s):
; K6 v* b! I$ v7 P- n+ j0 m10.2
# k- t* e5 i3 Z4 e& e! Z" J15.3
7 c( F0 ]# a" D- w( @4.10
, o; q9 w% [. m& j5 D6.8.2
Sheet N°:
DSH - 546
Subject: Relative humidity Key words:
7 _  _- y7 Z- W" p  b: A- Relative humidity
0 y& ^* v* o2 t# H1 U- Range
# `; Z, D+ H) f- Percentage
  @+ U5 ^: `0 w7 I( R6 l- IECEE-CTL/193/INF
! k" |0 G* E  GDecision taken at the
2 Q; @9 C& u; F% v41st CTL meeting.
9 D  K6 w3 G# aQuestion:
Various IEC standards require that specific tests be performed in a humidity chamber. The
specification of the relative humidity is in several formats. How should the tolerance on the
* G& {3 I; N1 Lrelative humidity specification be interpreted?
Decision:
- S1 y, j8 d- `% L(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
be in percent relative humidity, % RH.
. F1 c! E9 n. o" l0 z0 V( p(2) It is intended that the set point of the humidity chamber controller be set within the
4 A4 k* f# }' E& zspecified range and that the humidity remains within the specified range.
1 k# P) l+ S  p1 m(3) Confirmation that humidity is within the specified range shall be made by a humidity
% M1 F3 |# e. D0 ]  Lmeasuring instrument according to CTL DSH 251A.
2 z: J& s* a, Q* A8 \3 o) c$ u
& k% u  L( ^& v8 L, Q5 \