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# E$ G- T2 j9 iStandard- No. Year
, m, k5 n% X) x3 q$ b+ pIEC 60950-1:2005 DSH
: D5 ~9 B# V) W. i# x* C07007 C; X. S1 B5 J6 h
20088 q& F' | K# M0 h
Category: OFF Q- f1 v6 e# H( {5 N( @; c7 C
Subclause:$ m T$ @6 G5 P8 \1 E4 }+ K, n0 @1 w- {
4.3.5* p V3 o) o0 t( R- b
Developed by: ETF 20 }% E7 ]+ U3 p- \* E& L' D( o
Subject:
/ Y# e w. k. _) x5 K+ gPush force for connectors
$ ~" R6 Z1 r; bKey words:
9 q4 r8 V* n' N# _4 q: |$ y-Travel adapter;
, [& z0 s' Q; N+ f% j- connector misconnection
8 Q- }( a: \. }# b1 ADecision approved at the
! j* B7 o0 [# _+ Z) s1 _4 i3 \46th CTL Plenary Meeting5 R! V, M/ V& G: H8 f! K8 G" ]
in 20092 f, Z, X4 h0 r, T+ M
Question:* T( G. K: N# Z- U& g
A travel adapter consists of two separable parts:' a2 B5 N3 X6 H9 M
· AC/DC unit (down transformation of voltage, safety separation provided)
3 I) o2 r: s/ s) Z+ A, d6 ~· DC/DC unit with output cable (supply stabilization and voltage adjustment, no safety separation# [5 m7 _6 M. {1 m* ]8 [) \
provided)
# w* D; l. T- I# G& P9 ~$ ^6 p% SThe unit can be used at AC mains (both units connected together) or DC (units separated, only DC/DC
6 C9 F1 F7 s( }2 g' Mused). The AC/DC unit has a (Class II) IEC 60320-1 type appliance inlet; the DC/DC unit uses a( b$ P" _5 ~2 n* G# m/ d& V
special 2-pins input connector.
. L ?3 W- e1 Q5 y4 _2 ]+ hWith a small force applied (less than 30 N) an IEC 60320-1 coupler can be inserted into the input
. J6 b" A* ^. `, Mconnector of the DC/DC unit and make contact.
D8 d: Z5 | ^7 i4 `) Z4 fa. Is such design acceptable if a warning label is provided on the DC/DC unit and additional remarks% v+ ~3 B+ d9 E- h
are provided in the user manual that state that the connector of the AC power cord shall not be
" j* J8 l9 |6 vpushed into the input connector of the DC/DC unit?9 w3 N& o- D3 v
b. How much force must be applied during the testing of the input connector (DC) and appliance- z% [- K/ p5 d) U$ j% s* ]
coupler (AC)?
$ y6 B; @6 \4 G7 iDecision:
4 v3 F3 N; u! d6 U6 @1 nA test force of 60 N (as specified in IEC 60320-1, no safety factor considered) shall be applied when3 U" ~6 {: X. f
testing possible misconnection of IEC 60320 and similar connectors.; P, c: U( y9 h h5 o2 n
# I: a: f5 ~# C0 K
; n5 u' Q, w, b |
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发表于 2012-11-6 13:49
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