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, Y; p: ?, y5 `" N3 oStandard:5 G5 x. s' d# K
IEC 60335-1: 3rd ed. 1991- g5 t0 [" O" V* o; R- T" P* e
Sub clause: 11.8 5 G$ G$ ^7 Y2 @: e3 p0 O
Sheet n°: 217+ X. Y) s: L7 a, b8 V8 ]
Subject: heating Key words:. h& b9 y4 g: w' J, S
- ambient temperature more than 25 °C
; f) k+ q, r" f$ G. R: G- winding temperature
6 D1 s- o% C% R- o7 LDecision of: 27th CTL meeting to be reaffirmed at 39th meeting.
- T6 {9 e; v2 T1 u& TQuestion:
& o* k/ `8 G* W, J: ^4 J5 Y" AWhich of the following limits is applicable in the case of a motor with a Class H insulated0 t7 ^7 F/ A! M' n; h
winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?8 u/ Z( A8 ^ L4 j
1) 140 °C (stated in table 3) + 25 °C = 165 °C8 X; H) B) }+ \3 D2 G
2) 170 °C (according with IEC 43-1/1983 table 3)
2 d" J1 p0 J3 I; c* Q3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
0 M' L* }# \1 C+ {1 k1 hDecision:: e" I% w0 r( s1 m" N
165 °C, as specified in case 1)
. f2 i7 I0 N( n4 e' X- {# F# q, v5 h6 j3 L+ ^+ p$ _
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发表于 2012-9-14 13:58
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