DSH 217 heating
http://decisions.iecee.org/icons/ecblank.gif DSH 217
heating
11.8
60335-1(ed.3)
Standard:
IEC 60335-1: 3rd ed. 1991
Sub clause: 11.8
Sheet n°: 217
Subject: heating Key words:
- ambient temperature more than 25 °C
- winding temperature
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.
Question:
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) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
Decision:
165 °C, as specified in case 1)
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