|
|
|  DSH 217- P4 l) A- E9 c$ m; B
1 y3 c: n, T, k! O; v H6 X | heating' e# @/ G4 w/ I$ L
| 11.8
$ |! [0 H1 A% \* l5 P | 60335-1(ed.3)
) }5 ~; q% u; o' V( ~. c/ T6 B |
; P n, ?( D! X+ E/ [/ s
Standard:% J1 v/ ~* i& R* D j# `& q- p
IEC 60335-1: 3rd ed. 1991
/ b9 M, h) h# R& D1 o8 ySub clause: 11.8
0 P- L8 Q- D& O' d# E, h4 W/ ~Sheet n°: 217/ N4 n; v/ d* f
Subject: heating Key words:
# z! C5 d1 f7 V( ~$ Q) c- ambient temperature more than 25 °C
( K% L- p" H2 B" S5 [7 Y$ L( h- winding temperature5 m/ @7 [/ ^9 Y' u: f
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.3 K0 a- W7 b0 l7 w, l
Question:
& f2 l( H$ A7 fWhich of the following limits is applicable in the case of a motor with a Class H insulated+ d$ Y7 V9 w( W' L0 G
winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?
1 y, \# M% K5 Q) n1) 140 °C (stated in table 3) + 25 °C = 165 °C3 ^; c7 O# u0 H
2) 170 °C (according with IEC 43-1/1983 table 3)( n4 g, p: G. i* Z/ c; r
3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”). g0 H* h$ \; C( t
Decision:9 ?7 C% ^; C9 ?+ W
165 °C, as specified in case 1)( X1 i8 T- e0 p1 v
- q+ L Q. k M- l
1 ^0 i! p& n4 F) s3 a8 I |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-14 13:58
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡