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fjapple大侠,谢谢你,还有问题想问你:2.9.4里面Separation from hazardous voltages方法1,2,3对于I类产品我应该选用哪一种呢?谢谢( Z0 _# A/ z: A! M3 q' C
标准附上:a) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION providing permanent separation,assured by barriers, routing or fixing; or9 c* I& c) k% B. e: |
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b) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION on or between the parts to be9 W2 U' J: L6 l: I/ F
separated; or, C6 N1 J9 h' ]& ?: }
c) (Method 1) DOUBLE INSULATION, consisting of BASIC INSULATION on one of the parts to be6 f7 I8 z0 ]$ F1 m- S9 I
separated and SUPPLEMENTARY INSULATION on the other part; or
7 @ U8 P1 d; j1 ?d) (Method 2) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with protective% `% o; P' D. C9 s7 p; b, }
screening connected to the main protective earthing terminal in accordance with 2.6.1 b);' C/ @% t* p- c+ H$ ~7 F
or
* H+ f- ?! U4 f0 j5 n2 fe) (Method 3) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with3 |- x6 Y# t! s$ M$ }) _. x4 C
connection of the other part to the main protective earthing terminal in accordance with% e' p; c: x4 j( j, O
2.6.1 b), such that the voltage limits for the accessible part are maintained by relative$ t6 S; u) ]- D/ x
circuit impedances or by the operation of a protective device; or
8 Z( n4 b2 m) [% e0 E! y$ yf) any other construction providing equivalent separation. |
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