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|  DSH 426
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) k6 N" j4 @# p% Q | Triple insulated windings
6 k' `" G! @/ g/ F& E5 E | 57.9, 57.9.4! b" w3 {% h" @# U4 t
| 60601-1(ed.2);am1;am2
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1 m# J" R5 S! y* @& kStandard(s)- (year and edition):! u, z! ^ y) E) ]& Q0 f- j% O
IEC 60601-1:1988 Ed.2 Am1+Am2
7 ~4 ~- x5 Y& k8 M. Q H. R, aSub clause(s): 57.9 57.9.4; |/ {6 K* `# Z- g/ @& ?' f! o1 `
Sheet n°: DSH-426
5 W- B! ]- M4 v4 ]# Y$ n, n4 d( W1 CSubject: Triple insulated windings# g. e H h" v$ h2 }3 X" n
Key words: Triple, insulated, winding, transformer
6 D1 ^- W4 ]( m* ?* p* vConfirmed by CTL at its 39th meeting, in Cologne) _* U: n3 M0 I! ^1 G6 R
Question:7 O5 b, ?+ m+ ]4 P+ A) ^
Many manufacturers are using a triple insulated winding wire on a transformer, where. A4 V& y6 [' v- e9 c) N. c- r
DOUBLE, or REINFORCED INSULATION is required between the primary and the secondary7 z! R) W9 T, Q3 n1 r
windings. Is this permitted?" [( S' I) A6 P$ g) b
Decision:
+ ?( t, m1 G3 @& ZThis is allowed, but precautions should be taken concerning possible mechanical damages to
2 d4 ~) E( d [- t* j% i3 Sthe wires. Other requirements of 57.9 shall be applied.
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发表于 2012-11-5 10:34
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