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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38

W-C-596H/GEN

4.6.16.1.2 Axial stress (plugs only). Unless otherwise specified (see 3.1) a force of nine pounds minimum shall be applied in each of two directions parallel with the plug face and along the axis of the contact hole.

4.6.16.2 Tensile strength. Unless otherwise specified (see 3.1) a force of 20 pounds minimum shall be applied to each contact in a longitudinal direction away from the contact and shall be held for at least one minute.

4.6.16.3 Blade retention. Unless otherwise specified (see 3.1) a force of 40 pounds minimum for general grade connectors and 150 pounds minimum for hospital grade connectors shall be applied to each contact in a longitudinal direction toward the contact and shall be held for one minute minimum.

4.6.17 Impact test (hospital grade) (see 3.6.17). Receptacles shall be mounted to a cast metal (malleable iron) box and a metal face plate installed as intended to provide peripheral support against the frame. The receptacle, plate and box shall be placed on a substantial steel plate with the outlet facing upward. A 5-pound cylindrical weight (1 1/4-inch (31.75 mm) diameter) having a flat end shall be dropped from a height of 18 inches (457.20 mm) to impact the center of each receptacle outlet. Plugs and cable outlets shall be tested by dropping a cylindrical 10 pound weight having a flat face two inches (50.80 mm) in diameter from a height of 18 inches (457.20 mm). Each sample shall be placed on a hard wood natural surface in any natural position (a cylindrical body shall have its major axis parallel to the surface). The hard wood shall be a maple block approximately 1 5/8 inches (41.275 mm) thick by 4 1/2 inches (114.30 mm) square and shall rest on a fixed surface such as a concrete floor. The device shall be examined for conformance to 3.6.17.

4.7 Sample selection. When a group of similar connectors employing common construction features is submitted for qualification, the devices shall be grouped into families to minimize redundant testing. Testing shall be conducted on samples of one representative device at the highest current and voltage rating within the family.

4.7.1 Criteria for general grade family grouping. General grade connectors shall be grouped into families using the criteria outlined in table VI for each test group.

4.7.2 Criteria for hospital grade family grouping. Hospital grade connectors shall be grouped into families using the criteria outlined in table VII for each test group.

4.7.3 Representative testing between families. The strain relief test for cable outlets (see 4.6.13 and

4.6.15o) need not be conducted if plugs with the same strain relief or cord clamp construction have already been subjected to the test on the required cord type and diameter.