问的太笼统了,具体什么产品的啊
你说的是不是电源线的 Strain relief test
Strain Relief Test
41.1 The strain relief means provided on an attached flexible cord, when tested in accordance with 41.2,
shall withstand for 1 minute a pull of 35 pounds force (156 N) applied to the cord.
Exception: In the case of a hand-held appliance having a mass of 1/2 pound (227 g) or less, exclusive
of the cord, the pull applied to the cord shall be 20 pounds force (89 N).
41.2 The connections of the cord inside the appliance are to be disconnected. The specified force is to
be applied to the cord and so supported by the appliance that the strain relief means will be stressed from
any angle that the construction of the appliance permits. At the point of disconnection of the conductors,
there shall not be movement of the cord to indicate that stress on the connections would have resulted. |