DSH 446 Protection of users

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 446 6 {. V1 {, x" j6 D0 Z0 m

Protection of users + {6 O( a- a2 h& }! h+ G

-

60950(ed.3) # T. F  }3 E/ ?9 t6 |

Standard:
IEC 60950, 3rd ed.
Sub clause:
4 S- k# V# }* s( d# o# @7
& z8 x5 h3 ?. n( m( Y4 R; @Sheet No.
446
% ^2 [) L' f+ v. N, dSubject:
Protection of users
+ ~5 p; V# c. q; p& S8 ?Key words:
1 K; E- U) @4 z4 S. M, T! G% CAntenna, voltage surge test
Decision taken at the
40th meeting 2003
Question:
For protection of users and service persons from transients and voltage surges, what are the appropriate
requirements between the following points for ITE connected to an external antenna:
7 g2 G3 R! l) h. ](a) antenna connection and Primary circuits?
& Q) P; I/ s, @- c% W- M) ^5 W/ [(b) antenna connection and SELV circuits when the antenna cabling is coax?
(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair
(UTP)?
( p) d# p5 u) g/ d/ r( j4 j: tSee attached diagram.
" l% q' O% I; F- FDecision:
+ B3 c4 d: Q+ w) @+ ]Since Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, the requirements cannot be used for the 3rd
+ d. ]" y: x4 y6 H  L/ {edition.
0 O1 o& x. D4 j% B  tThis decision applies to IEC 60950-1 3rd edition.
In the case of IEC 60950 3rd edition sub clause 10.1 of IEC 60065 6th edition is to be applied, by referring to
! f% b: n8 d; oIEC Guide 112 2nd edition "Guide on the safety of multimedia equipment".
7 x# ^2 U5 t" x4 WAlthough, the test of 10.1 to IEC 60065 requires test between the terminal for the connection to antenna and
0 D# n2 t+ E+ y6 Y; u% A/ Q6 X: n: kMains supply Terminals, and not between the terminal for the connection to antenna and SELV.
+ a% [) p! j" M% P
1 t% j7 [4 f, ]+ K  [: o