46 Strain Relief and Bushing46.1 Th

46 Strain Relief and Bushing46.1 The strain relief means provided on a flexible cord shall withstand for 1 minute without displacementa direct pull of 35 pounds (156 N) applied to the cord, with the connections within the power unitdisconnected. The strain relief is not acceptable if, at the point of disconnection of the conductors, thereis such movement of the cord as to indicate that stress on the connections would have resulted.Exception: The strain-relief means provided for the output cord on a power unit with a Class 2 outputshall withstand for 1 minute a direct pull of 20 pounds (89 N). The results are considered acceptable if,with the output cord connected internally, movement of the cord does not result in a reduction of spacingsto primary or dead metal parts, damage to the transformer or enclosure, or interruption of the output-circuitwiring.46.2 A 35-pound (16-kg) or a 20-pound (9-kg) weight, as applicable, is to be suspended from the cordand supported by the power unit so that the strain relief means will be stressed from any angle theconstruction of the power unit permits.