|
|
|  DSH 255
c% F4 S* O- \. D7 N+ a! [5 Q9 A0 g+ S) \! h, D2 g6 d$ c2 v$ ?; E
| Resistance to fire for external parts (enclosures)
3 d, ~2 Y( z9 B+ Z( o9 g | 30.28 g$ `( Q9 ]5 s' N9 h! O' Q6 |
| 60335-1(ed.3) I$ [3 G: K- F- W- _2 j" e, O' `8 C
|
$ ? H. z2 t5 h5 X% B' ^Standard: IEC 335-1, Ed. 3 Sub clause: 30.2 Sheet n. 255
: _8 g. `6 y& X/ E" I, Q( w6 fSubject: Resistance to fire for external parts (enclosures)
1 G& F" X9 Q( o" e I8 xKey words:
" D% J# N" J+ y* @, L- resistance to fire
5 H! s6 b6 D# {0 |- enclosures
+ s7 r. b( N# kDecision 18 of 34th meeting/19977 ~) c$ q# | E9 B; g
Question:8 w* m( N- Q. A
Shall external parts of non-metallic material (enclosures) be subjected to the tests of7 ?! [9 `& g$ g1 T+ n. Y- L( j
subclause 30.2, when parts of insulating material supporting connections in position,
6 u$ E. F7 }. ?* w3 a k. Las well as parts of insulating material supporting live parts, other than connections,
/ ~# X$ N$ e( ~in position, fulfil the tests of subclause 30.2 ?
2 u3 j5 w- z' c J! Q& m9 GDecision:% I6 J. \2 c* m
Yes, the enclosure has to be tested with glow wire.7 e4 N: g- @; E
6 w. I% z# a2 L
1 T3 A! J, a7 x# g0 c. L
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
1/2 
|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 13:45
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡