Improper Insertion Test Blades SB1889 of UL 498 Figure 98.1

98.3 Pull test

98.3.1 After completion of this test, there shall not be any damage to the cord connectors or the blades of the attachment plugs or other evidence of increased risk of injury or electric shock. The latching means shall remain functional. There shall not be any loosening of the plug blades or displacement between the blades at the attachment plug face, nor compression of the folded blades below the minimum allowable thickness for the configuration. The attachment plug shall be capable of being inserted into a standard mating receptacle. There shall not be any damage, arcing, or dielectric breakdown during application of the test potential. The retention of blades test, Section 96 is to be repeated.

98.3.2 Previously untested devices are to be used. With the device firmly secured in place, a mating attachment plug is to be inserted into the device and the latching mechanism activated to lock the plug in place. The mating plugs are to have the configurations shown in Table 98.2. A pull of 20 lbf (89N) 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cord connector and tending to withdraw the plug from the device is then to be applied to the plug and the plug shall be withdrawn by the force. The force is then to be removed from the plug and the latching mechanism activated to release the plug, and the plug removed from the outlet. This is to be repeated for a total of 250 cycles. Three devices are to be tested using attachment plugs with rigidly mounted solid blades with standard detent holes. Three devices are to be tested using attachment plugs with folded blades and standard detent holes.

100 Improper Insertion Test

100.1 To determine compliance with 15.2.3and 15.2.4, a cord connector having a 1-15R configuration shall obstruct the attempted insertion of the test blades illustrated in Figure 98.1, when tested as described in100.2 and 100.3.

GNGPL 98981_AL

100.2 Each of 12 cord connectors is to be tested while being supported on a flat steel plate.Rigid spacing materials may be used to support a cord connector that because of its shape does not lie flat on the steel plate, provided that by doing so, pressure is not exerted against the cord connector that will influence test results. The test blades shall be supported and centered above the non-polarized contact slot of the cord connector being tested. Each contact slot of a non-polarized cord connector is to be tested separately.

100.3 Each test blade is to be inserted into the non-polarized contact slot with a force that is to be gradually increased from zero to a 35 lbf (156 N). The force is to be maintained for one minute. Six cord connectors are to be tested using test blade 1, and six using test blade 2. In each case, the test blades shall be obstructed to the extent that they do not make electrical contact with the device contact relating to the non-polarized slot.

1. Application: This plug and socket test gauge is mainly used to test and inspect whether the structure and size of plugs and sockets conform to UL 498 standards. And the mainly application industries is electronics, electrical appliances, plugs and sockets and other similar areas.

2. Features: Gauge dimensions, tolerances, material, hardness, surface roughness conform to the standards requirements; Material hardness is more than 50HRC; Material thermal expansion coefficient is small,dimensions and tolerances is stable and reliable.

Improper Insertion Test Blades SB1889 of UL 498 Figure 98.1