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本帖最后由 emailsimon 于 2016-7-7 11:42 编辑
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. _( W1 m3 J( @# p. }# Q. z. a请教标准中,如下条款 ,感觉很抽象,不知道怎么理解
! A( ?: |. X5 T# _' Y! pCircuits with TERMINALS which are HAZARDOUS LIVE v6 L" D5 \6 H1 i! `6 w! y. Z
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These circuits shall not be connected to ACCESSIBLE conductive parts, except for circuits
. P4 k4 i2 B7 T3 j; W1 T( Ewhich are not MAINS CIRCUITS, and which are designed to be operated with one TERMINAL3 r: I9 K, Q6 h- I T
contact at earth potential. In such cases, the ACCESSIBLEconductive parts shall not be 9 ?- L: k) c$ V% Z9 n+ _. z
HAZARDOUS LIVE.
+ d9 O. u: o7 f: AIf such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
; ^3 v+ B9 Q& ]' ~ t2 tlow) floating at a voltage which is not HAZARDOUS LIVE, this TERMINALcontact is permitted to be ( k8 o8 A, \$ R0 z
connected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial ; s# T. j4 b4 _% z: T% j; y! @
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to 0 b5 E$ i6 Q6 ?1 I w
be connected to other ACCESSIBLE conductive parts.
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我的理解:
& \' b w. q' X0 [' T9 } w7 c& k( N带有危险带电端子的电路1 i3 ]. M' h. V3 V, z" c' c6 |
这些电路不可以连接到可接触导体部分, 但是~~~~除外9 l% Y7 q! d$ V1 j8 Z; \- n4 d
) S; s( b' S7 EIf such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
; u; F) w5 c1 B4 c9 `) F4 u4 |low) floating at a voltage which is not HAZARDOUS LIVE, f, Q& t$ N0 u' E' J
第一段中要求接地了, 这里说的非危害悬浮电压怎么理解?& P. H; b6 `( h9 B+ F" t' e: `' {3 f
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this TERMINALcontact is permitted to be 2 x- A! ~. K6 T% n) {% U; q
connected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial . U* J3 G% R' `) J8 i# U' C
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to $ @; r+ G z1 O! U! K
be connected to other ACCESSIBLE conductive parts. 2 b8 X/ q( r5 D5 Y0 _) K
第一段已经允许接到地系统了,这里有牵扯出公共功能地系统??太抽象了,到底在说什么???
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: u' N( D) x" p2 T. P4 D如果我的设备,有一个输出端子,是接客户的设备,电压不能确保一定无危害,该怎么处理???. l- |3 j6 m$ H @5 S9 {, ~
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