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& r$ ^( C6 f; h5 i; Z2 [Standard:
) R( ]3 `5 M9 G: y/ `# JIEC 60950, 3rd ed.4 U1 f+ A9 w) j" q) N- S
Sub clause:; o+ f$ R$ t M3 w u# E& U9 [3 Q
7
; y( R+ ]) V$ n% P9 C& qSheet No.: w) L% Z% A$ d9 X0 N8 T
4463 m% ~2 w* v0 M( e3 W t* z) J) A0 H
Subject:4 u: C* F# N! [& z+ D4 n6 R
Protection of users7 x7 ~8 S+ p# l% [
Key words:9 l4 y7 Q6 [' Y% _. i# s. \
Antenna, voltage surge test
: @- S' @( P% X( T0 }Decision taken at the
* t" i4 v& t8 m40th meeting 2003/ m' s8 x+ g9 b
Question:) q, B, R# b9 X! }- m( p
For protection of users and service persons from transients and voltage surges, what are the appropriate
2 j4 h3 c4 w4 I" b3 Krequirements between the following points for ITE connected to an external antenna:4 ^ A% c& s8 g+ @* ]& G
(a) antenna connection and Primary circuits?! s8 q6 d, g5 r# r, K
(b) antenna connection and SELV circuits when the antenna cabling is coax?# l) R9 k* |$ F* Q% p+ N
(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair
, q9 R A8 q! s$ q$ o" |7 D2 v(UTP)?
" I2 L C+ y! iSee attached diagram.0 k, Q9 x. f6 j6 a, U$ ~% A: O" c
Decision:1 k% A, d9 ]2 e. |9 P/ J. q
Since Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, the requirements cannot be used for the 3rd$ u) n1 M9 A9 x& u( D- u2 W A! w
edition.
* Y! p: W5 N/ @1 T5 C/ oThis decision applies to IEC 60950-1 3rd edition.
! z3 O4 c; V" FIn the case of IEC 60950 3rd edition sub clause 10.1 of IEC 60065 6th edition is to be applied, by referring to! H7 ?3 e9 o ?" w) F! D. R
IEC Guide 112 2nd edition "Guide on the safety of multimedia equipment".
7 a8 e& O. F; x$ n6 CAlthough, the test of 10.1 to IEC 60065 requires test between the terminal for the connection to antenna and
) q% E! ~& x- a6 ~0 bMains supply Terminals, and not between the terminal for the connection to antenna and SELV.
! a" L! a' c! e$ k* Q! J& ~3 C4 a2 u
8 R$ O& Z1 B. e) C H
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发表于 2012-11-6 16:55
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