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|  PDSH 1023; ]/ N2 z; T, o+ G1 a
5 A9 L" w8 ^0 x6 t p, H' \ | Dust test for IP 5X and 6X as described in the transformer standard
. [0 w9 A b9 {0 Y1 s5 A | 17.1.1C, 13.41 }- \1 D# x- c5 g. b$ q
| 61558-1(ed.1);am1 & 61558-1(ed.2);am1 & 60529 all editions
]& h5 ^4 w: L% }0 Z5 F |
3 A+ R9 I, w7 ^& Y3 U
Standard(s):0 J- F2 t! C0 L/ x9 H* i
IEC 61558-1+ ~5 Z+ p# O5 U2 @7 r) i
IEC 60529! m5 H# f _1 ~% L( K
All editions2 Q, H! T7 e0 M2 E
Subclause(s):: y' E0 k8 H t1 J/ g3 ^& D
17.1.1C! \( D4 b2 D7 Z+ ]2 B! s
13.4& z& N0 z7 \2 @5 V. Y0 j4 k8 Z
No. Year* z6 C! z( K6 e: h
PDSH& n2 U6 F! n9 n. M0 U4 d
1023 2010$ w( G" N' _. |# s# f; g2 r8 P, b
Category: SAFE Developed by: ETF58 q/ r- G% s' @+ f0 O
OSM/LUM
a/ [2 C% K ?/ e# J0 p9 n8 ]9 vSubject:3 D7 p. ^' F9 g. n. {0 ~- o
Dust test for IP 5X and 6X as6 x4 W6 p- ~6 t3 O, v5 K
described in the transformer
( ?' O" C- Y" O+ Y- Bstandard
+ ]$ m" R7 \0 g! _9 R! q/ lKey words:
+ ^7 F& F3 c ]7 g; q% R' J- Transformers' ^( S, }4 g# `& s/ p7 M' v& O9 S
- Dust test
5 g9 k: S" a( l7 U' d6 K" k3 u- IEC 60529$ r$ A1 e& E& b" K' _' T/ H
To be approved at the 49th
+ d# L9 W. S* W- k+ S y3 U/ O$ vCTL Plenary Meeting, in 2012
& O! N* P! h' O' a3 Y. l4 `Question:
8 W2 c; c" _7 F6 OIn the horizontal safety function standard for degree of protection provided by enclosures (IP code), IEC, m* X$ w/ ~ C! ~& m' ~, h; q
60529, a description of the dust is given in subclause 13.4. However, in the transformer standard the
" B" g/ ]3 L( odescription of the dust divagate a bit as the following wording is added: “and shall have a range of particle6 b( h% ~+ l, X2 t
size down to and including 1 μm with at least 50% by weight less than 5 μm”. This more precise
Q0 S4 C8 j6 v$ ldescription imply that dust in the dust chamber must be changed when a transformer is tested, this without. B; A) U' d4 y$ L4 G
any technical reasons. For the future, can we use the dust specified in IEC 60529 also for transformers?
: S. s# r& N9 c2 j* B7 q- EDecision:$ [; o( w6 y5 a: B/ ^* X9 b
The horizontal safety function standard IEC 60529 shall be followed, i.e. the dust specified in subclause
9 `# l0 q- M' a) {- S; S, Z! G13.4 can be used.
8 r6 S( d, v/ ?8 T7 l5 B8 n+ }4 Z$ E& r$ A1 S/ x$ Z
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发表于 2012-11-8 15:14
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