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本帖最后由 emailsimon 于 2016-7-7 11:42 编辑
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+ T/ q+ [) v& e请教标准中,如下条款 ,感觉很抽象,不知道怎么理解
& I! U# I" J1 G) M$ R- l9 r# pCircuits with TERMINALS which are HAZARDOUS LIVE" n) H! n4 i3 L' R$ y' f: {
; [, j$ [- C% a; X; L3 |& wThese circuits shall not be connected to ACCESSIBLE conductive parts, except for circuits 7 @: ~9 I2 ?3 d' h; N }
which are not MAINS CIRCUITS, and which are designed to be operated with one TERMINAL
; N& R' S/ n5 H3 N7 B' qcontact at earth potential. In such cases, the ACCESSIBLEconductive parts shall not be 1 I& ~) v9 j5 \# D; Y
HAZARDOUS LIVE.
$ B f2 A4 P4 n4 N" H& J3 OIf such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal 9 s. ^; Q% t) Y% c& o/ \- T
low) floating at a voltage which is not HAZARDOUS LIVE, this TERMINALcontact is permitted to be 9 B. w$ s) M( r. I2 N( ?: v4 ?' i
connected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial 5 L+ V1 ], k, K$ k) h+ ?
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to
2 r6 @! D5 g" U" ], x4 kbe connected to other ACCESSIBLE conductive parts. 8 x' B3 d Y9 t- r
9 G& Q+ J1 W6 E: B! S4 W+ l我的理解:
^5 w2 J) N0 l/ x. u) B. D$ r Z* k$ z带有危险带电端子的电路
: h: c3 A4 z$ u0 q9 p8 y2 i这些电路不可以连接到可接触导体部分, 但是~~~~除外; V4 F% P" g6 H5 b2 B7 M
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If such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
0 {6 b. i1 i7 X0 w- Slow) floating at a voltage which is not HAZARDOUS LIVE3 y) e1 a0 A) A" o
第一段中要求接地了, 这里说的非危害悬浮电压怎么理解?& m A* ] \) w2 G9 Y9 c
9 h: o6 I. d P) n6 H8 ^( Hthis TERMINALcontact is permitted to be
9 B' @1 @; h$ Z) F( ~4 pconnected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial : x ^/ w7 j1 {# d6 R" F8 r9 r) ?
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to
b* `0 I+ w! z5 G4 @3 ~* Gbe connected to other ACCESSIBLE conductive parts.
! x7 u- a, I8 H3 c3 @ F5 ~' j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???' }- W) L$ [; }: ^9 V' m
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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???
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发表于 2016-7-7 11:41
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