|
引用第0楼haohaoxuexi于2010-11-17 14:14发表的 关于8898中故障条件下的触电危险 :
8 E; l4 X0 P/ p标准中第11章:当设备在故障条件下工作时,仍应当具有防电击保护。% i8 d) O' R/ w- ~: g! i. f- L7 W) l
对端子接触件,如果天线插头和/或地线插头不能插入该被试端子,则: h6 q. E2 Y( V7 G6 ?1 }+ o4 h; W
(1)9.1.1.1 a)的允许值,对非音频信号,要增加到交流70V(峰值)和直流120V;
/ Q1 G5 [; F4 a1 K注1:对音频信号,在故障条件下不要超过正常工作条件下的限值。3 v( A2 J9 q. T1 u A3 d3 r
以及(2)9.1.1.1 b)的允许值要增加到,对交流,U1=70V(峰值)和U2=1.4V(峰值),对直流,U1=4V。
, v c, b& r4 B: W! j& l....... Compliance is checked by the tests described in clause 9, modified as specified below and8 Q0 b& n$ a/ g0 X4 P' p( s
under fault conditions.4 N/ H q% Z4 l6 ?" a3 S7 B
For contacts of TERMINALS8 J5 S t( A0 G; M* A& m( H; n
– the permissible values of 9.1.1.1 a) for other than audio signals, are increased to 70 V; {' s3 x J; I0 h, [ E0 B# n
(peak) a.c. and 120 V d.c.,
# S+ G% n9 w* B8 f* o7 Z) s; Z+ y. HNOTE 1 The limits under normal operating conditions for audio signals should not be exceeded under fault conditions.
$ p3 i) C4 m G3 |. k$ pand
n8 e5 c" @) y: N( H0 d6 J5 d+ `– the permissible values of 9.1.1.1 b) are increased to U1 = 70 V (peak) and U2 = 1,4 V (peak), a# k* P4 @# ?, s2 E
for a.c. and to U1 = 4 V for d.c.,
: S. }. X! v) B标准的意思是说Clause 9中的这两条条款修改到上述限值,并不是说要同时满足的意思。 |
|