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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
4 C& I) e, t' _) @ t% s1 j% k标准附上:a) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION providing permanent separation,assured by barriers, routing or fixing; or0 U+ E! A: e8 b/ p' J
, B& r9 q) g3 D& X( p9 ?5 b
b) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION on or between the parts to be
) p1 b- w z+ d# J; W9 S. W) Y( i2 ~separated; or: H, ~+ ~- k0 _0 ?. k
c) (Method 1) DOUBLE INSULATION, consisting of BASIC INSULATION on one of the parts to be
. F/ @. V% h0 {, Hseparated and SUPPLEMENTARY INSULATION on the other part; or
( d. {( L: N, c3 w& K) e2 Dd) (Method 2) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with protective
0 k8 v5 r u1 a) ?7 _! ?" C- `* Nscreening connected to the main protective earthing terminal in accordance with 2.6.1 b);% d e3 O% A, Q
or1 O% s T; U0 i+ H6 s3 B
e) (Method 3) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with; H1 X' ]8 g6 ?8 I$ d& R
connection of the other part to the main protective earthing terminal in accordance with) \: {. a' x& j) h9 @) L
2.6.1 b), such that the voltage limits for the accessible part are maintained by relative
; ]: a g- d1 a3 O1 M) ycircuit impedances or by the operation of a protective device; or
' u {' L9 p) Y2 s0 l. A" S$ ?3 qf) any other construction providing equivalent separation. |
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