DSH 624/07 Humidity test requirements

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无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

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DSH 624/07 5 M: C) d7 A6 q6 b

Humidity test requirements ) F- S4 D# F, r. h- W

Various

60335-1(ed.4);am1;am2 & 61010-1(ed.2) & 60601-1(ed.3) & 60950-1(ed.2) & 60065(ed.7);am1

Standard(s): IEC 60065/2001
( _$ S: O- a4 D$ v6 eA1/2005
IEC 60950-1/2005
5 @+ ^% L" T: rIEC 60601-1/2005
$ L/ J# J# B, f% C5 r: ^3 YIEC 61010-1/2001
IEC 60335-1/2001
1 |. x1 g2 g) {A1/2004
1 b0 N9 b2 j$ o- o+ S4 sA2/2006
9 O; ]0 x7 f4 O5 c0 z; D+ v8 O4 USub clause(s): Various
+ u2 N  Y. C  J/ m9 d4 t+ wSheet N°: 624/07
CTL-WG4
: {4 a, j- q3 s7 j8 b( WPage: 1(1)
. f* Q. O% f4 T' _! V$ @0 ZSubject(s): Humidity test
requirements
6 L4 n1 `/ X5 Y8 \2 DKey words:
7 h% d* H  T0 }( `. T, l/ \- 93% RH
4 }$ h- k/ C  p5 e- +/-3% RH tolerance
$ l( q# Y, W. I2 F( v& S8 {- 20 – 30°C
Meeting:
; p3 R6 ]- n7 N. ?1 D9 PDecision confirmed
at 45th CTL meeting
5 E: r% e' Y" W3 m$ }Question: Various IEC standards have requirements for humidity/temperature
, z+ y/ v8 \( Z3 lconditioning, but have different specifications for the test conditions.
; E- P1 s- ^6 Q- R3 l9 K7 ^IEC 60065 – 93 +2%/-3% (t 30°C +0/-2°C)
4 I, W1 o1 G4 ~2 O7 CIEC 60950-1 – 91% - 95% (t 20-30°C +/-1°C)
5 U! n4 G, d0 j. {) e* x0 mIEC 60601-1 – 93 + 3%/-3% (t 20-30°C)
IEC 61010-1 – 92,5 + 2,5%/-2,5% (t 40°C +/- 2°C)
/ _7 ?' l% `; ^. c5 G$ LIEC 60335-1 – 93 + 3%/- 3% (t 20-30°C +/-1°C)
6 O) c& u# b0 W- S8 a7 J' |7 @There does not seem to be a technical justification for the differences in the
specifications.
/ O6 L  s! ~# D: {/ r7 \Accordingly, it is suggested and recommended that the humidity/temperature
5 G6 {/ w3 b$ H- bspecifications in the above standards be consistent.
/ N' w3 b2 U- \8 k7 I' g% T1 YDecision: The chamber is to be set at 93% RH, with +/-3% RH tolerance, at a convenient
/ D& R9 f4 T- A: ?! \temperature between 20°C and 30°C, but the chosen temperature to be kept
within +/- 2°C during the test.
) ]2 ~$ _. |  U7 J4 kThe standard specifications for the humidity are to be met at the
reference/measuring point, where the controlling humidity sensor is located.
* g3 L  Y+ h' `# f$ R+ d; q! A. EThe tolerances permitted in CTL DSH 251A (+/-6% RH) are allowed in other
parts of the humidity chamber, away from the reference point.

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