DSH 592/06 Dust test for IP 5X and 6X as described in the transformer standard

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 592/06

Dust test for IP 5X and 6X as described in the transformer standard & H; [3 h' a! F7 p  q

17.1.1C, 13.4 ; n! X) E: J, Z

61558-1(ed.1);am1 & 60529(ed.2);am1 $ z( p  l! a% W9 s

Standard: IEC 61558-1/1997
# o4 l0 p3 x# f- C% c: kA1/1998
IEC 60529/1989
A1/1999
Sub clause: 17.1.1C
7 N3 K, d  u  ^% B1 ^4 e13.4
Sheet N°: 592/06
4 N1 I2 C/ S' j9 V* W+ h, I' f% q+ }1 J3 YPage: 1(1)
6 U+ T" h4 `1 f8 \& O& pSubject: Dust test for IP 5X and
7 e- l5 q4 u  o, J; B6X as described in the
transformer standard
Key words:
- j! }8 M: S4 b- a# }2 S- Transformers
- Dust test
- IEC 60529
Meeting:
Decision confirmed
% t7 Z" t1 q! y: C' i  cat CTL 42nd meeting
Question: In the horizontal safety function standard for degree of protection provided by
enclosures (IP code), IEC 60529, a description of the dust is given in subclause
3 Q, z1 @& _% c13.4. However, in the transformer standard the description of the dust divagate a
bit as the following wording is added: “and shall have a range of particle size
down to and including 1 +m with at least 50% by weight less than 5 +m”. This
more precise description imply that dust in the dust chamber must be changed
when a transformer is tested, this without any technical reasons. For the future,
can we use the dust specified in IEC 60529 also for transformers?
  |8 a- e# a( ?5 iDecision: The horizontal safety function standard IEC 60529 shall be followed, i.e. the dust
specified in subclause 13.4 can be used.

4 u8 Q$ Z$ ~: c) ^5 g" d
) y. ]. ?- @2 q3 j