DSH 326 Mains Transformers

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DSH 326

Mains Transformers 3 J. E$ F9 _0 T! u4 J

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61010-1(ed.1);am1;am2 0 |0 _8 G% f0 p) W$ Z& v: f

/ w% B( U& r; qStandard:
IEC 61010-
1 a3 K  ?8 q$ @  w% o- f0 e1:1990+A1:1992+A2:1995
Sub clause:
( x1 e/ i8 w5 r2 {9 a/ r8 V4 D14.7
- W' Q4 R  d9 v; P6 q& _Sheet n. 326
  E, c5 S( N, @* |+ s3 {, qPage 1(1)
Subject:
4 i# r: C( @2 q' }3 L. r! |Mains transformers
Key words:
- Temperature
4 o$ q  ~2 J% }# `/ ^- Melting
- Limits
% a2 d! e& d5 O) ^Decision taken by
ETF3 and confirmed
( B: c! P+ _. S2 gby CTL at its 38th
meeting, in Toronto
Question:
# K- b' ~' Y2 f5 v4 AWhat temperature limits should be applied in single fault condition?
% M' z8 W( p: z; |% |) bDecision:
Refer to Table4 of IEC61010-1 ‘Motor temperature’.
Note: Where melting of insulation occurs this is not significant where it does not cause a
' z9 Q( Y+ |3 V; M$ ]hazard.
Explanation:
Table 4 is to be amended to include transformers in its application in the next edition and a
8 R6 p" H# q9 M% i; {2 ~8 I2 ]# utext change included referring to hazards when insulation melts.
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