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

TABLE V. Inspection level.

Lot size

Group I of table I or II Inspections

Major

Minor

1 to 8

9 to 15

16 to 25

26 to 50

51 to 90

91 to 150

151 to 280

281 to 500

501 to 1,200

1,201 to 3,200

3,201 to 10,000

10,001 to 35,000

35,001 to 150,000

150,001 to 500,000

500,001 and over

All

119

143

1/ Samples may be pulled from either the production lot itself or from samples pulled from the lot for major defect testing.

NOTES:

1. Major defect. A major defect is a defect that is likely to result in failure, or to reduce materially the usability of the unit of product for its intended purpose.

2. Minor defect. A minor defect is a defect that is not likely to reduce materially the usability of the unit of product for its intended purpose or is a departure from established standards having little bearing on the effective use or operation of the unit.

4.6 Methods of inspection. Connectors shall be tested as specified in UL 498 with additional tests as specified herein.

4.6.1 Visual and mechanical examination. Devices shall be examined to verify that the materials, design, construction, physical dimensions, marking, and workmanship are in accordance with the applicable requirements (see 3.1, 3.4, 3.5, 3.7, and 3.8).

4.6.2 Retention of plugs (see 3.6.1). The connectors shall be tested in accordance with UL 498 and applicable bulletins. Following the test, connectors shall meet the requirements of 3.6.1.

4.6.3 Gripping (15 and 20 ampere, 125 and 250 volt straight blade receptacles and cable outlets only (see 3.6.2). The tests required in 4.6.3.1 and 4.6.3.2 shall be performed using conditioning tools and pull out tools conforming to figures 1, 2, 3, and 4. The conditioning and pull out tools shall be free of grease.

4.6.3.1 Power blade. Using a plug with a single 0.074 to 0.075 inch (1.88 to 1.91 mm) thick steel blade without holes (see figure 1) the blade shall be inserted into each current-carrying opening of the receptacle for 20 conditioning cycles. After the 20 conditioning cycles, the contact shall be capable of

supporting for one minute 1 1/2 pounds secured to a single 0.055 inch (1.40 mm) thick solid blade without holes (see figure 2). The force shall be in a direction normal to the plane of the face of the receptacle and tending to withdraw the plug.