|
|
|  DSH 426
4 f- M2 Z. D4 ^! {7 V. G
" K. u7 k+ t0 q- X. Y | Triple insulated windings0 k. O# L8 I+ O5 Z
| 57.9, 57.9.4
, d% ]: n- [' [+ y! }; L | 60601-1(ed.2);am1;am2
; K0 f$ k! ]4 { |
- T2 g" [2 ]7 C- }* l
Standard(s)- (year and edition):3 n# `6 p' ~/ @* U% I: V; z( r4 r
IEC 60601-1:1988 Ed.2 Am1+Am2% l5 Q* c. b3 O# K% s
Sub clause(s): 57.9 57.9.4# [) `: o; N( q& P1 ?$ d i
Sheet n°: DSH-426. j9 I0 ]; l5 f( t, O1 s
Subject: Triple insulated windings
I3 m' i2 e$ u. s; E3 x& vKey words: Triple, insulated, winding, transformer; d% f& }5 a9 _7 I7 Q" k) k
Confirmed by CTL at its 39th meeting, in Cologne
# s; g: P5 c9 e: iQuestion:# @: N- G" ] ^+ Q2 s7 v+ B7 ~
Many manufacturers are using a triple insulated winding wire on a transformer, where6 Y5 \9 Q- w- q/ E: L7 y5 U0 n- }
DOUBLE, or REINFORCED INSULATION is required between the primary and the secondary; y7 r3 P* J% r: U0 h. z6 k9 j3 W
windings. Is this permitted?
2 K0 l8 _6 S$ C4 s8 ~) VDecision:
1 Y* {0 D( u, MThis is allowed, but precautions should be taken concerning possible mechanical damages to4 F) S- N( J$ i# t }' }: i
the wires. Other requirements of 57.9 shall be applied.5 K+ J A0 {) f/ O
2 z# d: I% z& w a/ B1 L2 Q4 P
! o7 [ q$ P4 F' r% b
|
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 2012-11-5 10:34
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