1、W -C -596G/GEN 28 April, 1995SUPERSEDING W -C -596F/GEN 24 June, 1983FEDERAL SPECIFICATIONCONNECTOR, ELECTRICAL, POWER, GENERAL SPECIFICATION FORThe General Services Administration has authorized the useof this federal specification by all Federal agencies.1. SCOPE AND CLASSIFICATION1.1 Scope . This
2、 specification covers electrical plugs, receptacles, and cable outlets for service from 120 to 600volts with current ratings up to 60 amperes and a frequency rating of 50/60 hertz. It does not cover devices for usein hazardous locations, as defined in the National Electrical Code. Special plugs, rec
3、eptacles, and cableconnectors for 400 Hz and dc applications are also included. Connectors are to be used with copper or coppercladaluminum wire only.1.2 Connector grade . Connectors furnished in accordance with this specification shall be either the general gradeor the hospital grade as specified;
4、for logistics purposes, hospital grade connectors shall be stocked in lieu ofgeneral grade, (see 3.1 and 6.3).1.2.1 General grade . A class of connector that meets the requirements of Underwriters Laboratories, Inc. (UL)Standard 498 and the additional requirements as specified herein.1.2.2 Hospital
5、grade . A class of connector that meets the more stringent requirements of “hospital grade“connectors as specified in UL Standard 498 and the additional requirements as specified herein. This connector isdesigned to meet the added performance requirements of high abuse areas.2. APPLICABLE DOCUMENTS2
6、.1 Government publications . The following documents, of the issues in effect on the date of invitation for bids orrequest for proposal, form a part of this specification to the extent specified herein.Military SpecificationMIL -C -55330 - Connectors, Electrical and Fiber Optic, Packaging of.Militar
7、y StandardsMIL -STD -1285 - Marking of Electrical and Electronic Parts.MIL -STD -1344 - Test Methods for Electrical Connectors.(Copies of military specifications and st andards required by contractors in connection with specific procurementfunctions are obtained from the Defense Printing Service Det
8、achment Office, Building 4D (Customer Service), 700Robbins Avenue, Philadelphia, PA 19111-5094.)AMSC N/A FSC 59 35DISTRIBUTION STATEMENT A . Approved for public release; distribution is unlimited.INCH-POUNDBeneficial comments, recommendations, additions, deletions, clarification, etc. and any data w
9、hich mayimprove this document should be sent to: Defense Electronics Supply Center, ATTN: DESC-ELDI, 1507Wilmington Pike, Dayton, OH 45444-5765, or telephone (513) 296-5391, facsimile (513) 296-8868.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-C
10、-596G/GEN22.2 Other publications . The following documents form a part of this specification to the extent specified herein. Unless a specific issue is identified, the issue in effect on date of invitation for bids or request for proposal shallapply.Underwriters Laboratories, Inc., (UL) StandardUL 4
11、98 - Standard for Attachment Plugs and Receptacles.(Application for copies should be addressed to the Underwriters Lab oratories, Inc., Publication Stock, 333Pfingsten Road, Northbrook, Illinois 60062.)National Electrical Manufacturers Association (NEMA) Standards PublicationNEMA WD 6 - Wiring Devic
12、es - Dimensional Requirements.(Application for copies should b e addressed to National Electrical Manufacturers Association, 2101 LStreet, N.W., Suite 300, Washington, D.C. 20037.)American National Standards Institute, Inc., (ANSI) StandardANSI/NCSL Z540-1 - General Requirements for Calibration Labo
13、ratori es and Measuring and TestEquipment.(Application for copies should be addressed to the American National Standards Institute, Inc., 1430 Broadway,New York, New York 10018.)3. REQUIREMENTS3.1 Specification sheets . The individual item requirements shall be as specified herein and in accordance
14、with theapplicable specification sheets.3.2 Fire and casualty hazards .3.2.1 UL verified connectors . Each contractor shall submit to the contracting agency proof that the connectorssupplied under this specification conform to the requirements of the Underwriters Laboratories, Inc. (UL) Standard498
15、and applicable bulletins. The UL label or listing mark of the Underwriters Laboratories, Inc., may be acceptedas evidence that the connectors conform to UL requirements for general grade connectors. The label or listingmark and green dot of the Underwriters Laboratories, Inc. may be accepted as evid
16、ence that the connectorsconform to UL requirements for hospital grade connectors.3.2.2 Non -UL verified c onnectors . In lieu of the label, listing mark or listing mark and hospital grade green dot ofUL, the contractor shall submit independent proof, satisfactory to the contracting agency, that the
17、connectorsconform to the applicable requirements of the published standards including methods of tests of the UnderwritersLaboratories, Inc. (UL) Standard 498.3.2.3 Additional requirements . In addition to compliance with 3.2.1 and 3.2.2, the connectors shall comply with theadditional requirements s
18、pecified herein.3.3 Qualification . The connectors furnished under this specification shall be a product which is qualified for listingon the applicable qualified products list.3.4 Materials . Materials shall be as specified in UL Standard 498. All current carrying parts of the connectors shallbe ma
19、de of copper or copper alloy. The terminal screws and pressure plates may be of other materials. Thegrounding contact is considered current carrying; however, the remaining portion of the grounding circuit may be ofother metal.3.5 Design and construction . Connectors shall be of the design, construc
20、tion, and physical dimensions asspecified herein (see 3.1) and in NEMA WD 6. Connectors shall be general grade (see 1.2.1) or hospital grade(see 1.2.2) as specified in 3.1 (see section 6). If the specification sheet does not specify the grade, the connectorshall be of general grade. Plugs shall be o
21、f a solid face “dead -front“ construction with no insulating discs permitted.Plugs and cable outlets shall be of the non -armored type. Exposed metallic cable clamps are not permitted.3.5.1 Mounting flanges and plates . Unless otherwise specified (see 3.1), mounting flanges and plates of ferrousmate
22、rial shall be protected against corrosion by either galvanizing, electrodepositing with cadmium, chromium,copper, nickel, silver, zinc, or chromizing. Painting alone is not acceptable.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-C-596G/GEN33.5.1
23、.1 Mounting screws . Unless otherwise specified (see 3.1), each connector receptacle shall be furnished withscrews for mounting the device to an outlet box or other enclosure. The screws shall be of the length and type asrequired in UL 498.3.5.2 Terminals . All terminals on connectors specified here
24、in are for use with copper or copper clad aluminum wireonly.3.5.2.1 Screw terminals . Terminals shall receive and hold properly the wire required for the current marked on theconnector. Receptacles marked 15 amperes or less shall receive and hold No. 12 American Wire Gauge (AWG)wire. Terminals on re
25、ceptacles shall be positioned for top, back, side, or back and side wiring, as specified herein. For hospital grade plugs and cable outlets, the terminals shall be located in individual insulating compartments withno joints or seams through which stray strands of the conductor may pass during wiring
26、 of the plugs and cableoutlets. The wiring terminal individual wiring compartment insulating walls or barriers are to either:a. Extend not less than 1/32 inch (0.79 mm) above metal parts of wired terminals and provide a spacingbetween metal parts of adjacent wire terminals of not less than 3/32 inch
27、 (2.38 mm) through air and oversurface,b. Extend not less than to be flush with metal parts of wired terminals and provide a spacing between metalparts of adjacent wired terminals of not less than 1/4 inch (6.35 mm) through air and over surface, orc. Extend over the top of the terminal compartments
28、with a wire clearance hole in the insulating wall or coversized to (1) accept the individual wire insulation or (2) be spaced not less than 1/4 inch (6.35 mm) apart asmeasured from the periphery of each hole.The barriers shall be permanently attached at the time of the manufacture.3.5.2.1.1 Top -wir
29、ing . Top -wired receptacles shall have terminals mounted on the surface facing the p lug.3.5.2.1.2 Back -wiring . Back -wiring receptacles shall have separate access in the back for insertion of gaugestripped connection wiring. The connection shall employ positive screw pressure or metal plate agai
30、nst a baredconductor. Terminals shall meet the strength test indicated in 4.6.4.3.5.2.1.3 Side -wiring . Side -wired receptacles shall have terminals on the side for connecting wires and withsuitable setbacks, grooves, or holes in the receptacle insulating material to allow for unimpeded wiring. A d
31、evicewith wire access holes on the side is considered to be side -wiring regardless of the location of the wire clampingscrews.3.5.2.1.4 Back - and side -wiring . Back - and side -wired receptacles shall conform to 3.5.2.1.2 and 3.5.2.1.3,respectively.3.5.2.1.5 Integral leads . Unless otherwise spec
32、ified (see 3.1), integral leads on receptacles shall be in accordancewith UL 498 and associated bulletins.3.5.3 Finish . Connectors shall have surfaces which are not warped, cracked, chipped, or blistered, either initially oras a result of the tests specified herein. Connector surfaces which normall
33、y come in contact with cable orconductor insulation shall be smooth so as to prevent cutting or abrasion of the insulating material.3.5.4 Strain relief (plugs and cable outlets only) . The strain relief shall clamp any diameter cable within thespecified range of cord diameters, so that no strain wil
34、l be placed on the electrical connectors when the cable istested in accordance with 4.6.13. Strain relief if exposed shall be nonmetallic. Strain relief shall not be of thehinged type. Current carrying metal parts behind the cord grip shall be covered with an insulating material not lessthan .06 inc
35、h (1.52 mm) in thickness.3.5.4.1 Angle strain relief . An angle strain relief shall conform to 3.5.4 and shall be designed for the cable to enterthe plug at 90 10 to the plug -in centerline (see 3.1).3.5.5 Electrical contacts . Positive contact shall be maintained at any point where an electrical co
36、nnection is madebetween parts. Receptacle contacts shall contact both sides of the mating blade when inserted. Plugs shall havesolid blades.3.6 Performance . Connectors shall meet the performance requirements of UL Standard 498, applicable bulletins ofUL Standard 498 and additional requirements as s
37、pecified herein.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-C-596G/GEN43.6.1 Retention of plugs . When connectors are tested as specified in 4.6.2, the connector shall meet therequirements of UL Standard 498 and all applicable bulletins for ret
38、ention of plugs.3.6.2 Gripping (15 and 20 ampere, 125 and 250 volt straight blade receptacles and cable outlets only) . Whenconnectors 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 theface of the connector under test by more than .06 inch (1
39、.52 mm).3.6.3 Terminal strength (15 and 20 ampere, 125 and 250 volt devices only) . When connectors are tested asspecified in 4.6.4, terminals shall not loosen, change in shape or position, or be otherwise damaged, and threadsshall not strip.3.6.4 Current overload (receptacles and cable outlets only
40、) . When tested as specified in 4.6.5, connectors shallmeet the requirements of dielectric withstanding voltage and insulation resistance as specified in 3.6.6 and 3.6.7.3.6.5 Temperature rise (receptacles and cable outlets only) . When tested as specified in 4.6.6, no connectorterminal shall have a
41、 temperature rise in excess of 30 C.3.6.6 Dielectric withstanding voltage . When connectors are tested as specified in 4.6.7, there shall be no damage,arcing, or breakdown.3.6.7 Insulation resistance . When connectors are tested as specified in 4.6.8, insulation resistance of mutuallyinsulated parts
42、 shall be not less than 100 megohms.3.6.8 Isolated ground (isolated ground receptacles only, see 3.1) . When receptacles are tested as specified in4.6.9, the isolated ground resistance shall be not less than 100 megohms.3.6.9 Heat resistance . After connectors are tested as specified in 4.6.10, ther
43、e shall be no evidence of mechanicalor electrical failure, flow or critical softening of sealing compounds, or softening or distortion of parts.3.6.10 Mechanical shock (plugs and cable outlets only) . When tested as specified in 4.6.11, connectors shallconform to dielectric withstanding voltage and
44、insulation resistance as specified in 3.6.6 and 3.6.7, respectively andthere shall be no evidence of chipping, cracking, breaking or loosening of parts which would interfere with the safeand normal usage of the connector.3.6.11 Crushing (plugs and cable outlets only) . When connectors are tested as
45、specified in 4.6.12, there shall beno evidence of chipping, cracking, breaking or distortion.3.6.12 Strain relief (plugs and cable outlets only) . Plugs and cable outlets shall be tested as specified in 4.6.13and the strain exerted on the attached cable shall not cause more than .06 inch (1.52 mm) m
46、ovement of the outerjacket.3.6.13 Assembly security (15 and 20 ampere duplex 125 volt, 50/60 hertz straight blade receptacles only) .3.6.13.1 Test I . When receptacles are tested as specified in 4.6.14.1, there shall be no mechanical breakageexposing electrical connections or separation of the face
47、and body by more than .06 inch (1.52 mm).3.6.13.2 Test II . When receptacles are tested as specified in 4.6.14.2, there shall be no cracking of the base orpermanent deformation of the yoke exceeding .06 inch (1.52 mm).Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
48、se from IHS-,-,-W-C-596G/GEN53.6.14 UL tests . When tested as specified in 4.6.15, connectors shall meet the following requirements of UL 498for:a. Integrity of assembly.b. Potential drop in grounding connections.c. Receptacle grounding contact.d. Accelerated aging.e. Grounding pin retention.f. Mold
49、 stress relief.g. Conditioning.h. Abrupt removal.i. Line blade r etention.j. Grounding contact temperature.k. Grounding contact resistance.l. Fault current.m. Connection and separation.n. Grounding path resistance.o. Strain relief.3.6.15 Blade strength (plugs and male inlets only) . When plugs are tested as specified in 4.6.16, the contacts shallnot have moved more than 1/32 -inch change in shape or position, or be otherwise damaged.3.6.16 Salt spray (corrosion) (when specified, see 3.1) . When tested as
