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|  DSH 217+ j7 b1 K" R- l q
% _" x) _$ }7 \1 G8 y4 H n, S | heating
. P$ I: y' B' z4 B, M8 T0 P | 11.8
$ z, g( ?& j9 y3 K j | 60335-1(ed.3)
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/ t+ S3 ?0 V% @. UStandard:* a+ V5 L! x. c# S, B! _% ~
IEC 60335-1: 3rd ed. 1991
7 q u+ M. K7 ]* U& _Sub clause: 11.8
6 _- b5 i- N) M( ]Sheet n°: 217
E2 _8 c% A% ^" p' e2 kSubject: heating Key words:
% s$ w. K0 @( `1 p$ O# B- ambient temperature more than 25 °C: d2 ~6 z( d3 `
- winding temperature; \1 Y0 ~; f* l( V, ~
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.+ j0 j; w8 K, v/ \9 [
Question:+ }; R; ^' ~0 J: K$ y
Which of the following limits is applicable in the case of a motor with a Class H insulated% _3 U2 {! Q% _
winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?! S2 q# z7 |! v9 S
1) 140 °C (stated in table 3) + 25 °C = 165 °C
7 _9 A# ^) ?" ^% c" c; u2) 170 °C (according with IEC 43-1/1983 table 3)
8 @, N2 |) b4 [2 o3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
. @1 O/ j7 {/ ^$ fDecision:0 V8 H# W6 k' \' F0 Y1 }
165 °C, as specified in case 1)
; l' }% }' Z# a8 ]5 W! a: O+ M* T" e5 X
7 _( T, O$ @8 b5 L& n
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