请教61010-1标准中,如下条款 Circuits with TERMINALSwhich are HAZARDOUS LIVE

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1 l1 B) P6 ?9 D8 q请教标准中,如下条款 ,感觉很抽象,不知道怎么理解
- j, D0 Q" r" [* Z; PCircuits with TERMINALS which are HAZARDOUS LIVE
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These circuits shall not be connected to ACCESSIBLE conductive parts, except for circuits
which are not MAINS CIRCUITS, and which are designed to be operated with one TERMINAL
9 X3 Q0 p) O2 m2 L- T8 Y4 Ucontact at earth potential. In such cases, the ACCESSIBLEconductive parts shall not be
, |; }. t, v# ~% @6 j* cHAZARDOUS LIVE.
+ O2 X. Z) N  {& g9 @# }6 a  fIf such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
low) floating at a voltage which is not HAZARDOUS LIVE, this TERMINALcontact is permitted to be
* ?% ~0 U9 V! Wconnected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial
screening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to
be connected to other ACCESSIBLE conductive parts.
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我的理解:
: A3 j9 c7 w- f9 U; l$ r带有危险带电端子的电路
这些电路不可以连接到可接触导体部分, 但是~~~~除外
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If such a circuit is also designed to be operated with one ACCESSIBLE TERMINAL contact (signal
low) floating at a voltage which is not HAZARDOUS LIVE
+ \1 E+ L1 T  \) f" Z! C第一段中要求接地了, 这里说的非危害悬浮电压怎么理解?
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/ ?. ?$ @& C/ q* _. rthis TERMINALcontact is permitted to be
. Q* j+ \, u' c1 V7 vconnected to a common FUNCTIONAL EARTH TERMINAL or system (for example, a coaxial
- ?" Q6 a( a+ W) R. _2 }$ L+ Dscreening system). This common FUNCTIONAL EARTH TERMINALor system is also permitted to
  E3 i4 d9 k7 k! l- C% a; p) y" _be connected to other ACCESSIBLE conductive parts.
8 Y' X5 [* }; X9 G* ~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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