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标题: DSH 624/07 Humidity test requirements [打印本页]
作者: 小米    时间: 2012-9-18 11:31
标题: DSH 624/07 Humidity test requirements
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DSH 624/071 A+ c$ t7 n% c$ s9 b0 y
Humidity test requirements( i! k, y  w$ J% |! O9 L! Q7 ~; e
Various
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60335-1(ed.4);am1;am2 & 61010-1(ed.2) & 60601-1(ed.3) & 60950-1(ed.2) & 60065(ed.7);am1  d1 K! ?$ _& }/ ~! p  f3 K- l$ C

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Standard(s): IEC 60065/2001
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* ?0 a9 ^, J+ s' o' Z3 ?IEC 60950-1/2005
5 w9 R5 z% M: [4 X5 ^; r  fIEC 60601-1/2005* f, n+ H, N5 I) `$ O2 p
IEC 61010-1/20012 C/ g- x7 o/ W% M( {! X
IEC 60335-1/2001& X9 A  w/ s# Z$ W& F0 U0 S
A1/20047 E$ s3 d) B; R; \* @. x
A2/20061 ]' s& O1 e2 d# H4 B
Sub clause(s): Various  q/ e" G' d  S
Sheet N°: 624/07/ N+ w1 H8 `% g2 x2 B
CTL-WG4  |2 _8 q6 u% p- s0 B, N0 m8 j
Page: 1(1)1 n* B+ [1 _  @8 }
Subject(s): Humidity test0 ~% ^- @/ l, i' @7 }7 A
requirements5 X. D+ V9 i1 o9 _! M
Key words:+ y% A) R3 Y0 b9 q0 V
- 93% RH
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- 20 – 30°C
$ S9 S" O' Z3 l9 e$ L% CMeeting:
' M0 R$ J7 L4 U7 `Decision confirmed
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Question: Various IEC standards have requirements for humidity/temperature; T5 A# t. e* d7 b0 v# V% i% A! {
conditioning, but have different specifications for the test conditions.
" u- O0 A# L" r/ C8 a. SIEC 60065 – 93 +2%/-3% (t 30°C +0/-2°C)1 L! ^5 F7 T8 t; G5 Y; Z, H/ h
IEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C); K- [9 H$ Q0 H  Q
IEC 60601-1 – 93 + 3%/-3% (t 20-30°C)# c' e( q  y* Z& Z; x/ J2 R5 }
IEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
: X3 x4 X$ ^% L( VIEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)
* u* t9 g6 ?% R+ e8 l- d9 @There does not seem to be a technical justification for the differences in the0 N# ?+ M" ~4 k9 x3 i6 C* [7 D) I! p
specifications.
7 ?" L, \% ]# N; G) e  pAccordingly, it is suggested and recommended that the humidity/temperature
  y& s) R% K/ Uspecifications in the above standards be consistent.
/ d1 H, Y! V3 v# S0 q. s  r; eDecision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient
2 P: M3 a2 Y* d( V  v$ ftemperature between 20°C and 30°C, but the chosen temperature to be kept% t  W, I5 ~: _! X4 b: z
within +/- 2°C during the test.
/ m% J# u* b4 |3 N# `% ?* XThe standard specifications for the humidity are to be met at the) ~0 D0 N: ?4 B' t
reference/measuring point, where the controlling humidity sensor is located.- s1 \2 N  g3 B- n& g0 i& t( Y+ U
The tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other
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