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4 ~$ o3 G6 M/ h$ @# k# a
Standard:
4 c! _4 E* K4 V [3 y$ }3 c PIEC 60335-1: 3rd ed. 1991
( T$ Y2 H6 e( B9 F) p& {Sub clause: 11.8 ! _, l/ K6 [7 V' O
Sheet n°: 217
, s0 k# \5 @, T2 LSubject: heating Key words:4 h- Q' l f/ P( |9 F' O7 k0 s V
- ambient temperature more than 25 °C
7 s1 E& [: T1 }' a& n- winding temperature
6 Y* C3 s, s. R/ e8 Z' pDecision of: 27th CTL meeting to be reaffirmed at 39th meeting.- e: r' U2 {7 A& C
Question:( J6 S0 N8 {$ e7 g9 L/ ?2 z/ g
Which of the following limits is applicable in the case of a motor with a Class H insulated: v9 j/ V2 o. s3 w
winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?
5 I7 Q4 Z1 G' B. @1) 140 °C (stated in table 3) + 25 °C = 165 °C* e9 W5 I) I9 v( s, I1 c
2) 170 °C (according with IEC 43-1/1983 table 3)
5 e6 t( ~4 _+ d j$ Z3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)4 B; v, V8 e* R0 j" R% t
Decision:& _/ y' n; o0 q8 ?0 i2 O t2 L" [8 }
165 °C, as specified in case 1)9 k7 z7 ^, U: z6 {
4 @- p I9 _+ Z7 r9 I& W! X4 z# Y+ t) d- h, l
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发表于 2012-9-14 13:58
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