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

3.7.8 Isolated ground (isolated ground receptacles only, see 3.1). When receptacles are tested as specified in 4.6.9, the isolated ground resistance shall be not less than 100 megohms.

3.7.9 Heat resistance. After connectors are tested as specified in 4.6.10, there shall be no evidence of mechanical or electrical failure, flow or critical softening of sealing compounds or softening or distortion of parts.

3.7.10 Mechanical shock (plugs and cable outlets only). When tested as specified in 4.6.11, connectors shall conform to dielectric withstanding voltage and insulation resistance as specified in 3.6.6 and 3.6.7 respectively and there shall be no evidence of chipping, cracking, breaking or loosening of parts which would interfere with the safe and normal usage of the connector.

3.7.11 Crushing (plugs and cable outlets only). When connectors are tested as specified in 4.6.12, there shall be no evidence of chipping, cracking, breaking or distortion.

3.7.12 Strain relief (plugs or cable outlets only). Plugs and cable outlets shall be tested as specified in

4.6.13 and the strain exerted on the attached cable shall not cause more than .06 inch (1.52 mm)

movement of the outer jacket.

3.7.13 Assembly security (15 and 20 ampere duplex 125 volt, 50/60 hertz straight blade receptacles only).

3.7.13.1 Test I. When receptacles are tested as specified in 4.6.14.1, there shall be no mechanical breakage exposing electrical connections or separation of the face and body by more than .06 inch (1.52 mm).

3.7.13.2 Test II. When receptacles are tested as specified in 4.6.14.2, there shall be no cracking of the base or permanent deformation of the yoke exceeding .06 inch (1.52 mm).

3.7.14 UL 498 tests. When tested as specified in 4.6.15, connectors shall meet the following requirements of UL 498 for:

a. Integrity of assembly.

b. Potential drop in grounding connections. c. Receptacle grounding contact.

d. Accelerated aging.

e. Grounding pin retention. f. Mold stress relief.

g. Conditioning.

h. Abrupt removal.

i. Line blade retention.

j. Grounding contact temperature. k. Grounding contact resistance.

l. Fault current.

m. Connection and separation. n. Grounding path resistance. o. Strain relief.

3.7.15 Blade strength (plugs and male inlets only). When plugs are tested as specified in 4.6.16, the contacts shall not have moved more than 1/32-inch change in shape or position, or be otherwise damaged.