DSH 700 Push force for connectors

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DSH 700 ) N+ L. }2 k2 l! M

Push force for connectors

4.3.5

60950-1(ed.2)

Standard- No. Year
IEC 60950-1:2005 DSH
$ ^& f( `. ^8 k6 T$ Z( O3 ^+ a0700
2008
" {- u- e# Q. VCategory: OFF
8 u! `6 G7 Z' x  BSubclause:
5 c! e% y% n/ t9 H! Q4.3.5
Developed by: ETF 2
Subject:
! c+ p( e. V) [' N+ OPush force for connectors
Key words:
/ i( Q2 |+ X( S9 V! m-Travel adapter;
8 D4 j! e) w% f- connector misconnection
! `# ]# N$ Q) a. Y0 e. zDecision approved at the
6 ~# r3 C% y7 l$ @0 V% G: t46th CTL Plenary Meeting
2 @( k% z- C1 F# pin 2009
Question:
A travel adapter consists of two separable parts:
5 t' S; ^. A- \; n- d1 Z·  AC/DC unit (down transformation of voltage, safety separation provided)
5 |4 [) r2 P: V1 {! J) J·  DC/DC unit with output cable (supply stabilization and voltage adjustment, no safety separation
! o1 A" v. n6 }0 r- T/ eprovided)
3 D: F; Q4 u3 @! \; V; ^1 HThe unit can be used at AC mains (both units connected together) or DC (units separated, only DC/DC
used). The AC/DC unit has a (Class II) IEC 60320-1 type appliance inlet; the DC/DC unit uses a
, I+ n& Q" d, u/ N1 Pspecial 2-pins input connector.
+ ~# T, l" Y6 v( o9 VWith a small force applied (less than 30 N) an IEC 60320-1 coupler can be inserted into the input
: C% E8 e( |/ \  l; m' s3 e( Qconnector of the DC/DC unit and make contact.
a. Is such design acceptable if a warning label is provided on the DC/DC unit and additional remarks
- A4 g8 q% m4 {are provided in the user manual that state that the connector of the AC power cord shall not be
pushed into the input connector of the DC/DC unit?
4 D+ R" ?( r$ x: a8 ob. How much force must be applied during the testing of the input connector (DC) and appliance
coupler (AC)?
' x2 b- W2 [1 Q& H1 E/ r5 V9 vDecision:
& A+ R: l  j( C  W( U4 B6 t% KA test force of 60 N (as specified in IEC 60320-1, no safety factor considered) shall be applied when
8 F) O! V- P& G0 p* d. ntesting possible misconnection of IEC 60320 and similar connectors.

! N& ?- T- G+ @8 R0 A
( U' ~# ~0 X! j! D3 L" X5 |- C