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22.3 Appliances with pins for insertion into socket-outlets shall not impose undue strain on. i5 J/ ~' L! h. u1 v
these socket-outlets. The means for retaining the pins shall withstand the forces to which the
7 l) p8 q5 G0 B D, xpins are likely to be subjected in normal use.
$ p( |% E. E2 k5 W3 C9 nCompliance is checked by inserting the pins of the appliance into a socket-outlet without3 M- w6 s( B7 {; |) }- I
earthing contact. The socket-outlet has a horizontal pivot at a distance of 8 mm behind the
+ S& i- P2 ?. uengagement face of the socket-outlet and in the plane of the contact tubes.
0 \8 n. G$ x4 y, V5 O$ ?( I( [The torque that has to be applied to maintain the engagement face of the socket-outlet in the; m7 z2 N' T: ^6 u3 O
vertical plane shall not exceed 0,25 Nm.. |& R/ X6 G* h0 [& b
NOTE The torque to keep the socket-outlet itself in the vertical plane is not included in this value.
6 }! L3 W& j% D4 }9 H. mA new sample of the appliance is firmly held so that the retention of the pins is not affected.. o, U7 `$ e$ ~' c; r$ \" u$ k9 L
The appliance is placed in a heating cabinet for 1 h at a temperature of 70 °C ± 2 °C. The% O- F* L3 E+ W x: d. X
appliance is then removed from the heating cabinet and a pull force of 50 N is immediately$ I* [, [5 D5 q3 Y) `
applied for 1 min to each pin along their longitudinal axes.
6 G% Q: F \$ sWhen the appliance has cooled down to room temperature, the pins shall not have been" N2 @# T* ]) \) Z0 `* ]) C* A
displaced by more than 1 mm.7 c9 N. f$ @# ]& f; ~" {
Each pin is then subjected in turn to a torque of 0,4 Nm, which is applied for 1 min in each
5 F0 {8 L5 ~( Q9 u" c2 a/ A, `direction. The pins shall not rotate unless rotation does not impair compliance with this9 E+ Z* J* A( h- I- @, q
standard." p$ v( t& N& l( A; b# L
5 G. {0 q: v5 y6 S% d+ ?
5 ?$ C: p f r& P2 O: R, {$ C" m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。3 p) k) j4 \# ]* b) e- Q, ?
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发表于 2014-8-15 11:35
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