' b# T$ i9 ?! z1 E; T% kStandard:2 U) U, a3 ]7 o6 `! ?( P, u/ f
IEC 60950, 3rd ed.; i/ O( B. Y: y0 b/ y
Sub clause: ; o0 d( ]9 a+ S7# e( e4 v5 ~! n- Q7 p6 ]# L" G' J7 E
Sheet No.0 J& {( l X5 q
446 ! A. P w3 j' q5 q6 L: P3 ZSubject: c( z7 s2 |+ O+ s* sProtection of users8 D$ N# C6 z5 e! ^! h9 p* A
Key words: $ C( [; I' x4 I; |, M$ o; VAntenna, voltage surge test 4 a- ?+ _9 {6 z% t% K! a6 [# N ?Decision taken at the6 P% T1 D Q# m0 R O- q$ D
40th meeting 2003 . ~3 i1 v" V0 q5 |( pQuestion: ) A/ ^4 p1 `0 e. _) gFor protection of users and service persons from transients and voltage surges, what are the appropriate H; h) m; s1 X% ?& S0 v3 E
requirements between the following points for ITE connected to an external antenna: 3 D' z7 j G" V; G, u(a) antenna connection and Primary circuits? $ f' ]% a0 i4 f6 b1 m1 X(b) antenna connection and SELV circuits when the antenna cabling is coax?+ s- B8 P2 z8 i" y8 Y, V' z
(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair/ ^" d( |8 o0 K# F5 s( [3 k7 h m; K
(UTP)?* h" o; y' \) u$ Q; V5 R) M
See attached diagram. : k$ G" e3 a' G3 ], k! m& U6 gDecision:0 t3 F+ `1 H9 U3 r
Since Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, the requirements cannot be used for the 3rd ) W+ \+ Y+ [% Y9 m$ i5 Wedition.) y+ F- h3 `, I; v' u
This decision applies to IEC 60950-1 3rd edition.+ n' D" r% k: B' Y9 l
In the case of IEC 60950 3rd edition sub clause 10.1 of IEC 60065 6th edition is to be applied, by referring to5 H( @% i' h* h) c
IEC Guide 112 2nd edition "Guide on the safety of multimedia equipment". , h+ c9 Q7 p4 _" E. s6 A' |6 PAlthough, the test of 10.1 to IEC 60065 requires test between the terminal for the connection to antenna and ; R% Z& [2 b! vMains supply Terminals, and not between the terminal for the connection to antenna and SELV. 3 t+ Z7 S% f5 m; }6 z4 w( ?0 q. o: C2 W3 I6 }
[attach]77162[/attach] 4 _3 _4 q4 N3 S! i. f
DSH 446