W-C-596 Connector, Electrical, Power, General Specification ForThis specification covers electrical plugs, receptacles, and cable outlets for service from 120 to 600 volts with current ratings up to 60 amperes and a frequency rating of 50/60 hertz. It does not cover devices for use in hazardous locations as defined in the National Electrical Code. Special plugs, receptacles, and cable connectors for 400 Hz and dc applications are also included. Connectors are to be used with copper or copperclad aluminum wire only.

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W-C-596H/GEN

4.4.3.1 Connectors qualified in accordance with 4.4a. Representative samples of each family grouping of connectors shall be subjected to the inspections specified in table III or table IV (as applicable) in the

order shown. Sample size shall be as specified in table III or table IV (as applicable). These inspections shall be performed within one year of the date of the initial qualification and once every three years thereafter.

4.4.3.2 Connectors qualified in accordance with 4.4b. Connectors shall be subjected to quarterly re- examination by a representative of Underwriters Laboratories Inc. or Canadian Standards Association. The examination shall include verification of materials, dimensions, configurations, and all other construction and testing requirements specified in UL 498 and any applicable bulletins, and in the Follow- Up Service Procedures issued by UL or by CSA. Once every three years representative samples of each family grouping of connectors shall be subjected to the inspections specified in table III or table IV (as applicable) in the order shown. Sample size shall be as specified in table III or table IV (as applicable).

4.4.4 Duplicate tests/altered sequences. When the inspections of UL 498 and W-C-596 are essentially the same they need not be duplicated. Test sequences may be altered at the discretion of a testing agency if it has adequate rationale for doing so and the results of the tests would be the same as if the stated sequences in W-C-596 were adhered to. This applies to both initial qualification and qualification retention testing.

4.5 Quality conformance inspection. Quality conformance inspection shall consist of the following inspections and procedures as applicable.

4.5.1 Inspection of product for delivery for connectors qualified in accordance with 4.4a. Inspection of product for delivery shall consist of group I of table I or table II (as applicable) inspections. Samples shall be selected in accordance with table V. If one or more defects are found, the lot shall be screened for that particular defect(s) and defects removed. A new sample of parts shall be selected in accordance

with table V and all group I tests again performed. If one or more defects are found in the second sample the lot shall be rejected and shall not be supplied to this specification.

4.5.1.1 Inspection lot. An inspection lot shall consist of all connectors of the same style produced under essentially the same conditions and offered for inspection at one time.

4.5.2 Inspection of product for delivery for connectors qualified in accordance with 4.4b. The Federal

Specification verification mark shall be evidence of compliance.

4.5.3 Inspection of packaging. The sampling and inspection of the preservation, packing, and container marking shall be as specified in the contract or order (see 5.1).