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本帖最后由 emailsimon 于 2016-7-7 11:42 编辑 + v; Y9 f9 Z( z3 w5 Q
; k. O) o0 I9 O& c: ^ V! e$ q! Z请教标准中,如下条款 ,感觉很抽象,不知道怎么理解
* d* ?" m% J) l+ YCircuits with TERMINALS which are HAZARDOUS LIVE1 C3 p( z0 |$ S: I* M
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These circuits shall not be connected to ACCESSIBLE conductive parts, except for circuits ! U7 ]; @4 c8 M- U, L( ^
which are not MAINS CIRCUITS, and which are designed to be operated with one TERMINAL
+ {# O9 L0 u1 b3 [contact at earth potential. In such cases, the ACCESSIBLEconductive parts shall not be ( N, j) B/ D- O/ M# W) p
HAZARDOUS LIVE.
# E; B/ o2 o0 F' Q$ y. K% nIf such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
7 B1 h, Q* _- r1 l/ |) Alow) floating at a voltage which is not HAZARDOUS LIVE, this TERMINALcontact is permitted to be
& D+ L) M% d" f. Z" cconnected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial 7 z: c' x+ h, J/ T# U
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to
' V# ~* B6 _/ b# L' fbe connected to other ACCESSIBLE conductive parts. 2 m& Y/ e; F& E' V* G) c" ?9 k
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我的理解:
3 N! h W* {1 \/ N3 j y7 I带有危险带电端子的电路! `1 z O. r; B
这些电路不可以连接到可接触导体部分, 但是~~~~除外# Q S7 O7 x* s. V5 f Z$ S
' P( V( \% M1 ?' g6 i3 [% S4 d: ^If such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
. S2 w# }5 u% ?low) floating at a voltage which is not HAZARDOUS LIVE
( H( c+ }# ]* K% Y/ D$ [6 u7 x第一段中要求接地了, 这里说的非危害悬浮电压怎么理解?# X. f& P# n3 I
) c- t. g' r5 }# x hthis TERMINALcontact is permitted to be
0 ~* X7 K1 n: L; \7 Kconnected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial
9 `2 i4 J* `$ i, Z% J) |7 k0 ?screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to " `7 H" z# ?- R( Y7 h6 E# t
be connected to other ACCESSIBLE conductive parts. " w( M) g3 Z, w
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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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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