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|  PDSH 1023
6 w. v2 M5 S2 }6 n/ z
9 }8 u* I) v8 ? | Dust test for IP 5X and 6X as described in the transformer standard6 f( n! Z! F' y
| 17.1.1C, 13.4
& b+ w" `9 |# i9 r! z- X | 61558-1(ed.1);am1 & 61558-1(ed.2);am1 & 60529 all editions8 U, o2 ^. K2 \. O
|
( T. t: _6 B1 d4 |2 u& ]Standard(s):
. C) i" V) |& L& R+ D; A' CIEC 61558-1
; M7 o. {& L2 [3 u1 C( EIEC 60529: o1 l8 r1 o M' W$ M; o
All editions
- y+ q3 J" V e3 |+ X, xSubclause(s):, W6 U+ X$ G& Y3 S; I1 m# ?
17.1.1C7 i4 m, j, B5 S- \0 ?/ e
13.4* E0 C* A4 i7 c- g+ x6 J2 @
No. Year, |- f: V1 O7 S
PDSH0 ~0 K1 E4 v9 y* X& T! d
1023 2010( `) u* L$ V0 j0 t4 e, m1 i
Category: SAFE Developed by: ETF58 c8 Q* b. v3 [
OSM/LUM# `7 g/ O n: l7 q" p5 u8 U
Subject:' }0 L! Q+ }( U
Dust test for IP 5X and 6X as
- w( k5 R+ D6 {" udescribed in the transformer
9 q8 R4 C; i/ p. j% {$ B, f% P1 l4 gstandard
L0 T/ t) o- B6 E5 V% oKey words:
1 E- E6 K' u7 P+ R- Transformers
' I; j7 M3 V# L' `- Dust test! F$ T4 q/ R3 O [
- IEC 605299 P/ l; J/ u3 N! d: c
To be approved at the 49th% R: d# F! D' J$ |
CTL Plenary Meeting, in 2012
h5 s; J( I. [5 r" ZQuestion:
6 j" A& p3 k' t+ N4 sIn the horizontal safety function standard for degree of protection provided by enclosures (IP code), IEC
@) T2 }) s+ \# E( J60529, a description of the dust is given in subclause 13.4. However, in the transformer standard the+ u& j5 U0 Z. u$ O' z7 Q
description of the dust divagate a bit as the following wording is added: “and shall have a range of particle0 H. C \) A+ N9 F
size down to and including 1 μm with at least 50% by weight less than 5 μm”. This more precise, I& j8 D3 U) `) y, k
description imply that dust in the dust chamber must be changed when a transformer is tested, this without7 C+ l1 @( R; }3 p# h& |& ]- F
any technical reasons. For the future, can we use the dust specified in IEC 60529 also for transformers?* O( I7 g, |4 r u
Decision:
) b1 R2 u& n, p$ M2 H3 n5 MThe horizontal safety function standard IEC 60529 shall be followed, i.e. the dust specified in subclause4 E8 X. g- ^# g' {
13.4 can be used.4 P" R" T& w. D
+ A' U& Z/ C7 z
) O G8 d' \3 V' G' e1 [ |
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发表于 2012-11-8 15:14
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