DSH 217 heating

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IEC60335试验指甲

DSH 217 6 U9 {. D$ s+ r2 w3 }" r

heating

11.8 7 S+ ^1 o4 D) D* C. \0 R

60335-1(ed.3)

Standard:
5 d# _# E# v4 m) {% \* bIEC 60335-1: 3rd ed. 1991
Sub clause: 11.8
Sheet n°: 217
3 l+ L% q# h1 ^4 A9 }2 y. ]$ M7 ?Subject: heating Key words:
# \" k" z% |4 i6 h- j4 E3 j& |  K, r- ambient temperature more than 25 °C
- h0 @3 H1 H7 |, H# P( @4 m  D/ M- F- winding temperature
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.
4 V1 N# [! [& W" K8 i# J9 eQuestion:
/ L1 X+ G1 L) E* u2 }Which of the following limits is applicable in the case of a motor with a Class H insulated
winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?
1) 140 °C (stated in table 3) + 25 °C = 165 °C
2) 170 °C (according with IEC 43-1/1983 table 3)
3 I3 H/ [' W. S# }6 ]7 f3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
Decision:
165 °C, as specified in case 1)
7 W4 }3 x$ K3 y) P( U, c
, B6 V( W  H7 `- x! ?! n" M& E
$ b. c- G8 J: H& n4 ^/ j