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比较2.4.3* I. R1 d1 @9 {3 K f
2.4.3: s: I4 {) k3 F1 A) I9 W
DIRECTLY CONNECTED TO THE MAINS. w' \, P! {1 `% z- P
electrical connection with the MAINS in such a way that a connection to either pole of the MAINS
& X4 B" E' E4 acauses in that connection a permanent current equal to or greater than 9 A, protective devices
+ e9 |. a: d# \; K2 min the apparatus being not short-circuited( V$ X. V0 K8 Z9 ^5 ]" f* T
NOTE A current of 9 A is chosen as the minimum breaking current of a 6 A fuse.; [- C! y" I- U
先明白要定义的是什么,就能理解2.4.4说的什么.
/ E' ~6 Q8 w6 \或可直接参看GB8898:; i2 ?3 \, r7 T- a& W
2.4.3 与电网电源直接连接directly connected to the mains
& ^" X, ~& C/ ~) |( G与 电 网 电源的电气连接,当设备中的保护装置不短路时,与电网电源的任一极连接时会在此连接处
. n+ u& F: C) D! b; n) a& G产生大于或等于gA的稳定电流。, b% i8 V& W5 E+ S$ u" x
注 :9 A 的电流是按6A熔断器的最小熔断电流选定的。! A* G* B t8 H4 p/ B1 A
2.4.4 与电网电源导电连接eonductively connected to the mains
! z! h) D, ^, I& N0 ~与 电 网 电源的电气连接,当设备不接地时,通过2000 欧电阻器与电网电源的任一极连接时,会在
# Y2 I$ _8 N) O+ e! T# i3 o电阻器上产生大于0. 7 mA(峰值)的稳定电流。 |
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