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

3.5.3.1.4 Back- and side-wiring. Back- and side-wired receptacles shall conform to 3.5.3.1.2 and

3.5.3.1.3 respectively.

3.5.3.1.5 Integral leads. Unless otherwise specified (see 3.1), integral leads on receptacles shall be in accordance with UL 498 and associated bulletins.

3.5.4 Finish. Connectors shall have surfaces which are not warped, cracked, chipped or blistered either initially or as a result of the tests specified herein. Connector surfaces which normally come in contact with cable or conductor insulation shall be smooth so as to prevent cutting or abrasion of the insulating material.

3.5.5 Strain relief (plugs and cable outlets only). The strain relief shall clamp any diameter cable within the specified range of cord diameters, so that no strain will be placed on the electrical connectors when the cable is tested in accordance with 4.6.13. Strain relief if exposed shall be nonmetallic. Strain relief shall not be of the hinged type. Current carrying metal parts behind the cord grip shall be covered with an insulating material not less than .06 inch (1.52 mm) in thickness.

3.5.5.1 Angle strain relief. An angle strain relief shall conform to 3.5.4 and shall be designed for the cable to enter the plug at 90 ° ±10 ° to the plug-in centerline (see 3.1).

3.5.6 Electrical contacts. Positive contact shall be maintained at any point where an electrical connection is made between parts. Receptacle contacts shall contact both sides of the mating blade when inserted. Plugs shall have solid blades.

3.7 Performance. Connectors shall meet the performance requirements of UL 498, applicable bulletins of

UL 498 and additional requirements as specified herein.

3.7.1 Retention of plugs. When connectors are tested as specified in 4.6.2, the connector shall meet the requirements of UL 498 and all applicable bulletins for retention of plugs.

3.7.2 Gripping (15 and 20 ampere, 125 and 250 volt straight blade receptacles and cable outlets only). When connectors are tested as specified in 4.6.3, 4.6.3.1, and 4.6.3.2, the test blade or pin shall not be displaced from the face of the connector under test by more than .06 inch (1.52 mm).

3.7.3 Terminal strength (15 and 20 ampere, 125 and 250 volt devices only). When connectors are tested as specified in 4.6.4, terminals shall not loosen change in shape or position or be otherwise damaged,

and threads shall not strip.

3.7.4 Current overload (receptacles and cable outlets only). When tested as specified in 4.6.5, connectors shall meet the requirements of dielectric withstanding voltage and insulation resistance as specified in 3.6.6 and 3.6.7.

3.7.5 Temperature rise (receptacles and cable outlets only). When tested as specified in 4.6.6, no connector terminal shall have a temperature rise in excess of 30°C.

3.7.6 Dielectric withstanding voltage. When connectors are tested as specified in 4.6.7, there shall be no damage, arcing, or breakdown.

3.7.7 Insulation resistance. When connectors are tested as specified in 4.6.8, insulation resistance of mutually insulated parts shall be not less than 100 megohms.