|
2.4.4 CONDUCTIVELY CONNECTED TO THE MAINS
: |0 k- D4 K" c9 R2 Xelectrical connection with the MAINS in such a way that a connection through a resistance of 2 000 W to; U8 b4 K q4 }7 O9 s, Q; r
either pole of the MAINS causes in that resistance a permanent current greater than 0,7 mA (peak), the! o& A" g, K2 D' D0 H* K$ D
apparatus not being connected to earth+ k5 b4 F1 O( u; D
- |% m: |. k* P4 j& ]2.4.3 DIRECTLY CONNECTED TO THE MAINS: r: h- R4 z3 V& O
electrical connection with the MAINS in such a way that a connection to either pole of the MAINS causes in& P e5 |( [; X4 q3 P
that connection a permanent current equal to or greater than 9 A, protective devices in the apparatus/ ~* X" b K4 A' x: D; R
being not short-circuited3 b5 F" Y7 ?9 \& L2 P- H/ }) g5 `0 u
( z9 _6 C2 G' v& Y- @- ~! W
UL60065 2.4.3, 2.4.4 怎么理解? 能否给个实例讲解下
. C$ W/ C! f; `( {- M4 X) R' V7 V- | |
|