|
|
3 c5 A/ v6 ~4 p1 T; N1 t
( v3 f4 u4 x; G! M5 U5 S% E
| Measuring Circuit Terminals (Amd 2)
- C' V4 W9 Y" e# Y- _8 h | 5.1.5# [8 T: F8 r" D
| 61010-1(ed.1);am1;am2/ d1 U, k# @; J8 J% ]6 g
|
0 M; Q: ]! e8 t- P& q
# R! S5 E" R9 ^Standard:
1 j1 H' s+ S& y8 @4 z. WIEC 61010-1:1990: k3 @' v) T4 W# p% y$ V
+A1:1992+A2:1995
' p& J4 x4 g2 A! f0 i* K; ^- H% lSub clause:
~ O8 w8 |* h! x- Y- w5.1.5
8 q; Q# X) g4 d1 {Sheet n. 297. M; m; b# d% ]: `, `7 H+ e
Page 1(1)
8 K, A$ `6 j ~Subject:# Q% F% W3 C2 f! Q) j3 M0 @$ J+ ~
Measuring Circuit Terminals
7 X( y* K3 W w g7 n5 i5 A- A(Amd. 2)
2 P6 E1 k* S! d7 d8 s* ~- RKey words:
& {) H: f7 n8 J/ G1 ?6 gTerminals$ Z* r: ^; ~$ z5 r4 H: ?
Marking7 l! @. z* R% {9 f
Decision taken by( P1 h/ f, I- x* D) A- P. m% }0 Q
ETF3 and confirmed
3 I9 O* \% z# \4 H2 Nby CTL at its 38th
! {8 @$ R E; J* C( d% Y Xmeeting, in Toronto
0 Z, L1 w2 @ J! o D- ^$ s& LQuestion:
" E8 i' O; |: I9 Q( FIs it acceptable for a measuring equipment to have its sensing terminals marked:
3 E M+ Y. @& O) [/ i4 P“CAT II (600V)
; d1 I3 N7 Y9 `2 S. p* a |' pCAT III (300V)”" r! ]8 H* i( Z4 Q7 p( m. x
Decision:, e& p$ W. \2 E1 m @! o
Marking with both categories with the relevant voltages as shown is acceptable.9 Y/ ^2 C/ d. S* o$ s1 N5 g
Explanation:
, @$ N& j7 z: i/ S' mThe standard allows operation under different categories provided the isolation is suitable for
$ i% W9 @; f. {: S; zthe voltages concerned. In this case, it is possible to mark both categories since the8 Q! @' S& R# K: d' U# c+ q
requirements for Cat II at 600V are the same as those for Cat III at 300V.
3 l1 y" C- p' _4 ^- Z' S( O; o* F
8 D' j# o2 [9 @" w- Z
) }+ d" O# }9 y/ V9 E$ `6 v' V3 m; S
|
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 2012-9-19 15:11
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