3磅5-20P插座保持力规

93.3 Each of six devices is to be subjected to ten conditioning cycles of insertion and withdrawal of a standard solid-blade attachment plug that has American National Standard detent holes in accordance with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, in rigidly mounted blades, following which the plug is to be fully reinserted into the device. The mating plugs are to have the configuration indicated in Table 93.1. A pull of 3 lbf (13 N) in a direction perpendicular to the plane of the face of the cord connector and tending to withdraw the plug from the device is then to be applied to the plug for 1 minute. The displacement of the plug shall not be greater than 0.079 inch (2 mm).

 

Table 93.1 Mating Plug configurations for plug retention

Device under test	Mating plug	No. of devices tested
1-15R	1-15P	6
5-15R	1-15P	6
5-20R	1-15P 5-20P(a)	3 3
6-15R	2-15P	6
6-20R	2-15P 6-20P(a)	3 3
a Shall have the ground blade removed.

Exception: Connectors may instead be subjected to the Retention of Blades Test, Section 111.2 and 111.3 (conditioning and 3 lb retention).