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22.3 Appliances with pins for insertion into socket-outlets shall not impose undue strain on' l4 G; V8 S& f: X
these socket-outlets. The means for retaining the pins shall withstand the forces to which the$ }2 _/ z3 ~& \2 {* Y. A2 H
pins are likely to be subjected in normal use.$ X2 I3 H& k# C) p0 l1 Y
Compliance is checked by inserting the pins of the appliance into a socket-outlet without9 m5 S( O: T. ~8 x6 G% O
earthing contact. The socket-outlet has a horizontal pivot at a distance of 8 mm behind the
2 ?. ~" f$ Y! `engagement face of the socket-outlet and in the plane of the contact tubes.) M% C2 x* X+ U$ y
The torque that has to be applied to maintain the engagement face of the socket-outlet in the4 P' N5 Z3 ^6 b) L9 Q" C
vertical plane shall not exceed 0,25 Nm. {6 g5 k* e/ a+ g, y, @
NOTE The torque to keep the socket-outlet itself in the vertical plane is not included in this value.
3 H. d# p' t" f7 |% qA new sample of the appliance is firmly held so that the retention of the pins is not affected.
2 s- I2 \, {" jThe appliance is placed in a heating cabinet for 1 h at a temperature of 70 °C ± 2 °C. The
& ~1 n" \" |) y; _( j8 T4 j* yappliance is then removed from the heating cabinet and a pull force of 50 N is immediately3 v7 W+ q% _+ @% C, w
applied for 1 min to each pin along their longitudinal axes.
: `. x! A3 v3 m6 y3 _* e( S6 UWhen the appliance has cooled down to room temperature, the pins shall not have been# V. u& P! ^4 r/ n) r
displaced by more than 1 mm.
6 ]$ T% ?% a U- gEach pin is then subjected in turn to a torque of 0,4 Nm, which is applied for 1 min in each
e8 ^1 h @7 \: ydirection. The pins shall not rotate unless rotation does not impair compliance with this
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针对直插式插头设备,如果插头扭矩0.4Nm不过,请问各位,有什么好的整改方案,谢谢。
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