|
|
|  DSH 624/07
4 K: N( i, s3 y$ L1 W% T$ k5 O7 k; c' r) v$ d
| Humidity test requirements6 A4 f& H" k: z# c2 s- n, z! L: r
| Various
1 {) ^ D' P) b( {" l+ r8 @ | 60335-1(ed.4);am1;am2 & 61010-1(ed.2) & 60601-1(ed.3) & 60950-1(ed.2) & 60065(ed.7);am1
9 |! V) E- ~6 B; D |
/ f, z6 d/ d5 q3 D
Standard(s): IEC 60065/2001
) }" G- [; E. v z4 gA1/2005
1 g. J" @4 g. {2 {IEC 60950-1/2005( N0 E% n* A' X! t) a- n; \
IEC 60601-1/20058 }2 k* h2 E% X! O5 @0 ], H
IEC 61010-1/2001, I; @: B2 b$ X
IEC 60335-1/2001( N. S. O; T8 a0 B) o+ x* G
A1/2004& n/ }$ S: D w- U! }% N" n" x+ c. [: t1 ?
A2/2006: W9 B( m3 }" j, [( C: ^$ A/ |
Sub clause(s): Various$ u/ P5 u+ q2 W6 T6 N# L
Sheet N°: 624/071 O, B9 j5 o/ g" v0 b; [8 h7 ]
CTL-WG4
1 t* g: ^: ?2 W6 k8 qPage: 1(1)! M! N- w( C. j: R; P
Subject(s): Humidity test9 h9 `/ f* l! A2 R( B! j& n L. @
requirements5 B8 i# W" Y6 v5 C; m" j
Key words:, V% A' ] U: [3 o! ]* ]" m
- 93% RH$ g8 F. m+ l1 l+ j
- +/-3% RH tolerance9 k& y5 W1 a1 L7 [6 ?6 [
- 20 – 30°C
6 \2 z* | t b+ R0 V8 mMeeting:5 s) m3 `) V+ y+ Q n5 c2 P4 W
Decision confirmed
8 |& Q- D( l$ C8 [+ z2 \at 45th CTL meeting1 N" X6 x; X$ P9 V
Question: Various IEC standards have requirements for humidity/temperature# _0 a3 Y7 z$ Z/ Y/ \$ v% n2 j
conditioning, but have different specifications for the test conditions.
1 C: s4 n! M1 `1 vIEC 60065 – 93 +2%/-3% (t 30°C +0/-2°C)$ Y+ K1 |( J5 n# E# i, _
IEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C)
2 L2 O6 b' ~; j L; kIEC 60601-1 – 93 + 3%/-3% (t 20-30°C)
: g: G$ H9 o1 Q2 z' D9 GIEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
8 B% n, r2 v9 }) y. x2 p& MIEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)
4 ^ `, S8 G9 l, f" i# y% O |There does not seem to be a technical justification for the differences in the0 v4 H" E2 {+ ~( |# s A# }5 l1 b$ k; E
specifications.% Q) C" f) [3 v# c
Accordingly, it is suggested and recommended that the humidity/temperature
9 R' r1 T2 v! b& N. J6 `# X. Mspecifications in the above standards be consistent.( x9 F8 G7 e9 ?2 I' d
Decision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient: n7 I/ f- Q9 h4 V) E
temperature between 20°C and 30°C, but the chosen temperature to be kept
8 V7 Q _* e- C9 M$ hwithin +/- 2°C during the test.' r4 j: k& A3 f, i `2 s7 X! K& x
The standard specifications for the humidity are to be met at the, s2 T' j& C: @9 R+ F/ _
reference/measuring point, where the controlling humidity sensor is located.% N% Q: A! o5 L
The tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other
. t8 B/ E K% l9 m" m4 x" bparts of the humidity chamber, away from the reference point.
9 ?/ `+ Q: V, |+ w& K# h2 @7 S
2 e% J" M9 W7 ]* y6 ?6 j) e, d% {% p) [* l5 }4 [
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-11-6 14:16
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡