DSH 217 heating

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IEC60335试验指甲

DSH 217 6 k5 d. S) \. i9 O

heating 3 \5 P3 f( S. L5 Q# @

11.8 2 J% s6 y( [: h+ f

60335-1(ed.3)

Standard:
IEC 60335-1: 3rd ed. 1991
Sub clause: 11.8
$ W/ Z; U2 d) y$ J2 V% [' }Sheet n°: 217
! W9 K- P" ~$ Y+ C9 N+ Y$ NSubject: heating Key words:
; `# U3 _2 ]# C# r! s( D/ g5 A- ambient temperature more than 25 °C
6 Q+ J* E+ f/ u) ^, @& ?4 S+ W- winding temperature
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.
- k: [8 n# E: Z: O' E- ~Question:
  b6 Q3 H2 J$ L& gWhich of the following limits is applicable in the case of a motor with a Class H insulated
' ^4 @" Z& E+ j; I/ Qwinding 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) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
Decision:
' i# V  Q+ _  B: s+ Q+ w9 K( I2 J165 °C, as specified in case 1)
; p5 }) [5 o0 v* [% }" N

6 J1 s2 @  ]9 j% J' P# h' |! A