|
|
|  DSH 217; `" x; n, l+ ?' ?
& ~! Z& {. ^8 S! N. k8 C9 |& A8 b | heating! c$ f; A7 e8 X5 I8 G1 G ^& i; @# `
| 11.8
; |1 r( c y, g \6 U$ ]/ { | 60335-1(ed.3)+ f) J% J6 ?$ a C2 b4 t; C
|
/ @! H2 v' b7 Z$ U
Standard:
9 F+ r# O( l# F' d1 }IEC 60335-1: 3rd ed. 19915 D3 T( Y7 i( u
Sub clause: 11.8 - t# f/ [6 f. {" D
Sheet n°: 217& X+ u& @* ]$ a7 y. d, G0 }
Subject: heating Key words:0 ~5 p. f% A* d o, l0 m2 |
- ambient temperature more than 25 °C
+ x1 S9 r+ j' U* M% p2 @- winding temperature, E4 a' _3 Y+ m
Decision of: 27th CTL meeting to be reaffirmed at 39th meeting.$ B+ l) g: t O5 t. ?% ?, b
Question:: l% R4 f0 P* g: W( |' e( ~) Q
Which of the following limits is applicable in the case of a motor with a Class H insulated
1 Y) d4 N+ F# |winding operating at an ambient temperature more than 25 °C (i.e. 120°C)?) `2 g9 r" |# k6 K$ {
1) 140 °C (stated in table 3) + 25 °C = 165 °C) Q2 o* y0 u/ p9 @. H
2) 170 °C (according with IEC 43-1/1983 table 3)
+ k x* u6 k6 ?: l! y3) 180 °C (according with IEC 85/1984, sub-clause 2.1 “thermal classes”)
$ k: x' q s6 H9 u* p. w$ pDecision:! s3 Y2 j" ^5 U+ x( n( W! K. P
165 °C, as specified in case 1)
8 o- H" K1 b* ~5 k8 H- g; @ o! S! a
. z; L% X3 i8 u, p. S4 r% L; r
|
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
|
/1 
|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