ANSI ECA 364-22B:2000 pdf free download – Simulated Life Test Procedure for Electrical Connectors
3.2.2 The test specimens shall be wired and assembled according to the manufacturer’s or military recommendations. Maintenance aging preconditioning shall be conducted in accordance with prescribed procedures on all connectors having removable contacts and shall consist of one removal and insertion of all of the contacts in each plug and receptacle.
3.2.3 Unless otherwise specified, the test specimens shall be wired with conductor sizes matching the contact size in the connector. The wire type and configuration shall be that specified, or that recommended by the connector manufacturer when no military specification exists.
3.2.4 Alternate contacts of the connector shall be wired in a series circuit, see figure 1, between a source and a load such that adjacent contacts are at opposite potential wherever possible. In the event that the connectors have more than one size contact, each contact size shall be wired as separate connectors.
3.2.5 The mated, wired connectors shall be connected between a source and a load such that each circuit will be continuously carrying the maximum operating voltage. The operating voltage and rated current shall be that specified or that recommended by the manufacturer when no military specification exists.
3.2.6 The test cycles described herein represent a particular area of connector application and are complete within themselves. Testing of one connector specimen shall be limited to one application category although this cycle may be run as many times as required to provide the necessary number unit hours.
3.2.7 The criteria for failure of the test specimen shall be determined by the following: The test specimens shall operate the load specified in 3.2.5 throughout the entire cycle. The total life of the connector shall then be the total number of unit hours the load is operated.
4.1.3 After each group completed one cycle as described above, the specimens are unmated, remated, and switched so that group II goes through the group I cycle and group I goes through group II cycle. This provides a 48-hour cycle for each group. The transfer of specimens shall be accomplished within the first hour of the first phase of each cycle. Provisions shall be made to remove power from the connectors while they are unmated and remated.
4.2.4 After each group of specimens has completed the 24-hour phase, they shall be rotated and tested to the next higher phase (group I goes to group II, group II goes to group III, group III goes to group I). This is continued until each group of specimens has been through each group of tests for a total of a 72-hour cycle. Each connector shall be unmated and remated during the transfer from group to group. Provisions shall be made to remove power from the connectors while they are unmated and remated.