1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency - Aviation, ATTN: VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can chan
2、ge, you may want to verify the currency of this address information using the ASSIST database at https:/assist.dla.mil/. FSC 5975 INCH-POUND A-A-50563B 10 September 2013 SUPERSEDING A-A-50563A 26 June 2003 COMMERCIAL ITEM DESCRIPTION CONDUIT OUTLET BOXES, BODIES, AND ENTRANCE CAPS, ELECTRICAL: CAST
3、METAL The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) establishes the government acquisition requirements for cast metal conduit outlet boxes, bodies, and entrance caps for use w
4、ith threaded and threadless rigid conduit, intermediate metallic conduit, and electrical metallic conduit. Outlet boxes may be used as wire outlets or as mountings for lamp holders, rosettes, switches, convenience outlets, to enclose wire splices, for mounting or enclosing surface wiring offsets, pu
5、ll boxes, and other functions in conduit runs. Entrance caps provide a weather resistant service entrance for wires. 2. CLASSIFICATION. The conduit boxes, bodies, and entrance caps and outlets and devices shall be of the following types, designs, forms, styles, and hub sizes specified below: 2.1 Typ
6、es. The outlet boxes and entrance caps shall be one of the following types (see 7.3(b): Type I - Conduit bodies that are essentially an enlarged section of conduit with hubs and access openings Type II - Rectangular base general purpose conduit outlet boxes for wiring devices Type III - Round base g
7、eneral purpose conduit boxes with threaded conduit hubs Type IV - Round base weather resistant conduit outlet boxes, with threaded conduit hubs, for exposed installation Type V - Round base explosion proof, dust-ignition-proof, and weather resistant conduit outlet boxes with threaded conduit hubs Ty
8、pe VI - Entrance caps, electrical Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 2 2.2 Designs. The outlet boxes and devices shall be one of the designs listed in table I. TABLE I. Design configurations. Design code Configuration 01 Stand
9、ard size wiring chamber with threaded hub connection for rigid conduit 02 Standard size wiring chamber with threadless hub connection for rigid conduit 03 Standard size wiring chamber with threadless hubs for electrical metallic tubing 04 Wiring chambers enlarged in both length and width and with th
10、readed hub connection for rigid conduit 05 Wiring chamber with increased length and with threaded hub connection for rigid conduit 06 Wiring chamber with increased length and with threadless hub connection for electrical metallic tubing 07 Threaded hub connection for rigid conduit, shallow depth 08
11、Threaded hub connection for rigid conduit, deep depth 09 Threadless hub connection for rigid conduit, shallow depth 10 Threadless hub connection for rigid conduit, deep depth 11 Threadless hub connection for electrical metallic tubing, shallow depth 12 Threadless hub connection for electrical metall
12、ic tubing, deep depth 16 Nominal 4 inch (10.2 centimeters (cm) diameter for exposed installation 18 Nominal 3 1/2 inch (8.9 cm) diameter 19 Nominal 4 5/8 inch (11.7 cm) diameter 20 3 1/2 inch (8.9 cm) diameter, threaded cover, plain base 21 4 1/4 inch (10.8 cm) diameter, threaded cover, plain base 2
13、2 5 3/4 inch (14.6 cm) diameter, threaded cover, flanged, mounting base 23 3 1/2 inch (8.9 cm) diameter, threaded cover, flanged, mounting base 25 3 1/2 inch (8.9 cm) diameter, cover attached by screws, plain base 26 4 5/8 inch (11.7 cm) diameter, cover attached by screws, plain base 27 Threaded hub
14、 connection for rigid conduit 28 Threadless hub connection for electrical metallic tubing 29 Threadless hub connection for rigid conduit Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 3 2.3 Forms. The outlet boxes and devices shall be one
15、 of the forms listed in table II. TABLE II. Form configurations. Form code Configuration A Single gang B Two gang parallel C Three gang parallel D Four gang tandem E Two gang tandem F With 3 wire (3-knockout) insulating cover G With 5 wire (5-knockout) insulating cover H With 7 wire (7-knockout) ins
16、ulating cover J With 4 wire (4-knockout) insulating cover K With 6 wire (6-knockout) insulating cover 2.4 Styles. The outlets and devices shall be one of the styles listed in table III . The front shall be the surface where the access to the wiring chamber is located. Placing the hub end up and view
17、ing toward the cover opening shall determine the right and left side. TABLE III. Style configurations. Style code Configuration AAA One hub in the back AAB Two hubs in the back BBB One hub in one side BBC One hub in each end, mogul style BLB One hub in one end and one hub at a 90 degree angle at the
18、 opposite end in the back, mogul style BUB One hub at each end at a 45 degree angle, mogul style BTB One hub at each end and one hub on one side, mogul style CCC One hub in each end CCA One hub in each end and one hub in the back CCB One hub in one end and two hubs in the other CCD Two hubs in each
19、end directly opposite CCT One hub in each end and one hub in a side (Type II) EEE One hub in one end Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 4 TABLE III. Style configurations - Continued. Style code Configuration LAA One hub in one
20、 end and one hub in the right side, with cover on back LLA One hub in one end and one hub in the back LLB One hub in one end and one hub placed at a 90 degree angle at the opposite end in the back LBD One hub at one end and one hub at a 90 degree angle at the opposite end in the back with cover LBL
21、One hub in one end and one hub in the back and left side at the opposite end LBR One hub in one end and one hub in the back and right side at the opposite end LBF One hub in one end and one hub placed at a 90 degree angle at the opposite end in the front LFN One hub in one end and one hub 90 degrees
22、 out in front at the opposite end with a mounting platform LLL One hub in one end and one hub placed at a 90 degree angle at the opposite end, on the left side LLR One hub in one end and one hub placed at a 90 degree angle at the opposite end on the right side LRL One hub in one end and one hub plac
23、ed at a 90 degree angle at the opposite end on a side with access openings in both front and back RRR One hub in an end and one hub on the right side SSS Two hubs in one end TTA One hub in each end and one hub in a side (Type I) TTB One hub in each side and one hub in one end (Type II) TAA One hub i
24、n each end, one hub in a side, and a hub in the back TBB One hub in each end and one hub in the back TAM One hub in each end and one hub on one side with a mounting platform UBB One hub in each end, both hubs offset in the back at a 45 degree angle from the outlet centerline, with a projected includ
25、ed angle of 90 degreeS XXX One hub in each side and in each end Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 5 2.5 Hub sizes. Hub sizes are related to type, design form, and style. Conduit hub sizes shall be one of the sizes listed in t
26、able IV. TABLE IV. Hub sizes. Size code Dimension A 1/2-inch (1.3 cm) B 3/4-inch (1.9 cm) C 1-inch (2.5 cm) D 1 1/4-inches (3.2 cm) E 1 1/2-inches (3.8 cm) F 2-inches (5.1 cm) G 2 1/2-inches (6.4 cm) H 3-inches (7.6 cm) J 3 1/2-inches (8.9 cm) K 4-inches (10.2 cm) L 5-inches (12.7 cm) M 6-inches (15
27、.2 cm) 3. SALIENT CHARACTERISTICS 3.1 Description. Conduit outlet boxes, bodies, and entrance caps shall consist of a cast metal body, a wiring chamber, and an access opening to the wiring chamber. All types shall have integral conduit hubs. Each hub shall have an integral end stop for the conduit o
28、r tubing, and shall provide a smooth, well rounded opening into the wiring chamber. Boxes without integral conduit hubs or end stops shall provide adequate room for the installation of a bushing. 3.2 Identical items. Conduit outlet boxes, bodies, and entrance caps of the same classification furnishe
29、d under any specific contract shall be physically and mechanically identical. This requirement includes parts, assemblies, components, and accessories. No deviation will be acceptable without prior written approval of the contracting officer. 3.3 Design. Conduit outlet boxes, bodies, and entrance ca
30、ps shall conform to Underwriters Laboratories (UL) 514, “Fittings for Cable and Conduit“ (DoD adopted). In addition to complying with UL 514, type V outlet boxes shall comply with the applicable requirements of UL 1203, “Standard for Safety for Explosion-Proof and Dust-Ignition-Proof Electrical Equi
31、pment for Use in Hazardous (Classified) Locations“, covering installation in class I, division 1, groups C and D, and class II, division 1, groups E, F, and G locations as defined in National Fire Protection Association (NFPA) 70, “National Electrical Code“ (DoD adopted). 3.4 Materials. Materials us
32、ed shall be free from defects that would adversely affect the performance or maintainability of individual components or of the overall assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 6 3.5 Construction. The construction of condu
33、it outlet boxes, bodies, and entrance caps shall insure sufficient strength and rigidity in the finished product to enable the product to resist damage during shipment, rough handling, installation, and use. 3.5.1 Type I. Type I conduit bodies shall essentially be an enlarged section of conduit. Cov
34、ers for conduit bodies of the same size supplied under the same contract shall be interchangeable. 3.5.2 Type II. Type II outlet boxes shall have two tapped No. 6, 32-threads-per-inch (32-threads-per-2.54 cm) device attaching screw holes located on 3 9/32-inch (8.3-cm) centers for each wiring device
35、 position. Covers for the same form supplied under the same contract shall be interchangeable. 3.5.3 Type III. Type III outlet boxes shall be cylindrical in shape and shall be designed to permit installation of standard 4-inch (10.2-cm) round outlet box covers with or without wiring devices. The out
36、let box surface mating with the cover shall be flat and smooth. Outlet boxes shall be designed for surface mounted installation. 3.5.4 Type IV. Type IV outlet boxes shall be cylindrical in shape and shall have surface mating with cover smooth, flat, and designed for the reception of a gasket. Holes
37、for attaching a cover shall not communicate with the interior of the outlet box. Means shall be provided for attaching wiring devices or a fastening strap on which wiring devices can be mounted. When specified, outlet boxes shall be provided with mounting feet . 3.5.5 Type V. Type V outlet boxes sha
38、ll be cylindrical in shape and designed for wiring in hazardous locations. Outlet boxes of design 20 through 23 shall be threaded for attachment of the cover, and the cover shall be provided with lugs or comparable devices to facilitate installation. When specified, the base of design 20, 21, 22, 25
39、, and 26 outlet boxes shall be furnished with at least two lugs to permit screw or nail mounting. The base of the design 23 outlet box shall be extended to provide a mounting flange with four holes at quadrant intervals. Design 25 and 26 outlet boxes shall have the cover attached by not less than fo
40、ur screws spaced equidistant around the perimeter. 3.5.6 Type VI. Entrance caps shall essentially be a conduit terminating fitting at the point of service entrance connection. The entrance cap shall assure a rain-tight condition within the conduit when the service entrance wires are installed with t
41、he proper drip loop. Entrance caps shall be provided with insulating covers containing knockouts of sufficient size to accommodate the wire sizes applicable to the particular conduit size. 3.6 Threaded conduit hubs. Internal conduit threads shall be in accordance with FED-STD-H28/8, “Screw-Thread St
42、andards for Federal Services Section 8 Dryseal Pipe Threads“, for tapered pipe thread form, except for hubs on service entrance caps that may be straight thread form. The hubs of the outlet boxes and bodies shall be threaded in such a manner that the centerline of the conduit, when attached, shall b
43、e in alignment with the centerline of the hub. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50563B 7 3.7 Covers. Blank covers, threaded hub covers, or special purpose covers, with or without gaskets as required, shall be furnished as specified
44、. Mounting screws shall conform to American Society of Mechanical Engineers (ASME) B1.1, “Unified Inch Screw Threads (UN and UNR Thread Form)“ (DoD adopted). 4. REGULATORY REQUIREMENTS 4.1 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent prac
45、ticable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 4.2 Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within specified tolerances using conversi
46、on tables contained in the latest version of FED-STD-376, “Preferred Metric Units for General Use by the Federal Government“, and all other requirements of this CID including form, fit, and function are met. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances
47、 specified in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable. The contracting officer has the option of accepting or rejecting the product. 5. PRODUCT CONFORMANCE PROVISIONS 5.1 Product conformance. The products provided shall meet
48、 the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The government reserves the right to require proof of such conformance. 5.2 UL certific
49、ation. Contractor certifications shall include UL certification. Acceptable evidence of meeting the requirements of UL 514 and UL 1203 shall be the UL label, listing in the UL Electrical Appliance and Utilization Equipment List, or a certified test report from a recognized independent testing laboratory indicating that the fittings have been tested and conform to UL 514 and UL 1203. 5.3 Market acceptability. The produ
