IEC 60320-2-3:2018 pdf free download

IEC 60320-2-3:2018 pdf free download
IEC 60320-2-3:2018 pdf free download.Appliance couplers for household and similar general purposes
16.101 Verification of the retaining device
A retaining device shall be provided to prevent inadvertent disconnection of the accessories when engaged. The retaining catch shall operate correctly. It shall be possible to insert or withdraw the connector and operate the retaining catch with two hands without difficulty.
This test is not applicable to couplers without retaining device, classified in 7.1 01 b).
Compliance is checked by manual operation and by the following test. During this test the connection between the accessories shall be maintained during the application of the principal weight and shall disconnect when the supplementary weight is applied.
The maximum and minimum forces necessary to separate the coupler are determined by means of an apparatus as shown in Figure 1 01 . This apparatus comprises a mounting plate (A) and an appliance coupler wired as in normal use (B), mounted so that the coupler hangs vertically with the plug connector or appliance inlet downwards.
The maximum and minimum separation forces provided by the retaining device are measured by inserting the connector into the plug connector or appliance inlet to the full depth. A carrier (C), with a principal mass (D) and a supplementary mass (E), is attached to the cord (F). The forces exerted by these components are given in Table 1 01 . The principal mass is hung on without jolting the connector and the supplementary mass is allowed to fall from a height of 50 mm ± 2,5 mm onto the principal mass.
Before commencing the test, the appliance inlets/plug connectors with their bases or cords,are placed in a refrigerator at a temperature of -5 °C ± 2 °C for at least 1 6 h. When removed from the refrigerator, the appliance couplers are immediately subjected to the test.
The test sample is rigidly supported and 1 2 impacts are applied, three to each of four places chosen so as to include the weakest areas.