AIR FORCE A-A-50696-1991 REELS STATIC DISCHARGE GROUNDING 50 AND 75 FOOT CABLE LENGTHS《50和75英尺的线缆长的接地式静电放电卷轴》.pdf

1、I I t I I I l I l l l l I l I i I I l i I l t A-A-50b9b 49 W 9999974 0062335 8 W , -1 A-8-50698 f- 11 July 1991 COMMERCIAL ITEM DESCRIPTION REELS, STATIC DISCHARGE, GROUYDIIGI, 50 AND 75 FOOT CABLE LENGTHS The General Services Administration has authorized the we of this Commercial Item Description

2、as a replacement for Military Specification MIL-B-83232 which is cancelled. Abstract. This Commercial Item Description describes industrial type static discharge reels with either 50 or 75 foot cable lengths (fully extracted) used to dispel static charges from ground support equipment. Type I - Larg

3、e (75 foot cable) Type II - Small (50 foot cable) Salient characteristics. Materials. The use of toxic or hazardous materials? as defined by the US Environmental Protection Agency, shall be the minimum consistent with performance requirements as stated herein. Metals. Those metals used shall possess

4、 low resistivity. Metals other than those specified shall be corrosion resistant or treated to resist corrosion throughout the life of the unit dile to contact with fuels, salt spray, or the following atmospheric conditions! Storage temperatures of -80 degrees to t160 degrees Fahrenheit, operational

5、 temperatures between -65 degrees and t125 degrees Fahrenheit, a relative humidity of 95 plus or minus 5 percent and airborne dust and sand particles encountered in desert operation. Fungus-Proof materials. Materials which are not nutrients for fungi shall be used to the greatest practical extent. W

6、here materials that are nutrients for fungi must be used, such materials shall be treated with a fungicidal agent commercially acceptable and compatible with those materials on which it is to be applied. Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data w

7、hich may improve this document should be sent to: San Antonio Air Logistics Center, AFLC, ATTI: SA-ALC/TIBDY, Kelly AFB, TX 78241-5000. AMSC N/A FSC- 4930 DISTBIBUTIOY STATEYEW A. Approved for public release; distribution is unlimited. I. Provided by IHSNot for ResaleNo reproduction or networking pe

8、rmitted without license from IHS-,-,-A-A-50696 49 E 9999974 00b2L3b T m A-8-50898 Dissimilar metals. Unless protected against electrolytic corrosion, dissimilar metals shall not be used in intimate contact with each other. Construction. The reel trough shall be of such size to contain the entire cab

9、le lengths as specified herein when in the fully retracted position. When bolted to an appropriate fixture, the reel and base shall be so constructed as to be capable of withstanding a static load of 150-pounds applied at the cable free end grounding device or cable free end when grounding device is

10、 not installed. Dimensions. The envelope dimensions of the reel in an upright position shall not exceed 12 inches in height, Il inches in depth, and 5 inches In width. For mounting, two 1/2 inch diameter bolt holes shall be symmetrically located in the base 7 and 7/8 inches apart on center (see figu

11、re 11. Mounting position. The unit shall be capable of operating when mounted in any position about a 360 degree axis. Cable outlet guide. A cable outlet guide shall be provided that will allow the cable to return to the reel from any position within a 90 degree arc to the plane of rotation of the r

12、eel without kinking or tangling. Automatic rewind. The reel shall be spring loaded with a spring manufac- tured from a corrosion resistant steel or one of steel that has been treated to prevent corrosion which will automatically retract the entire length of the cable extension when extended in any d

13、irection within 90 degrees from the axis of the cable outlet guide. Cable latching mechanism. The reel shall be equipped with a latching mechanism to release and restore cable tension. After latching has occurred the cable shall remain in an extended position. Further extension of cable shall cause

14、the latching mechanism to release and permit the cable to retract. Cable. The Type I reel shall contain a minimum of 75 feet of cable. The Type II reel shall contain a minimum of 50 feet of cable. The cable for the Type I and Type II reels shall be made of “7x7 strand commercial corrosion resistant

15、steel with a nominal outside diameter of 3/32 inch. The cable shall have a Y20 pound minimum breaking strength and no more than 6.67 ohms electri- cal resistance per 75 feet. This cable is not for flight control use. The cable shall be sheathed with a yellow Dupont Hytrel jacket having a 5/32 inch n

16、ominal diameter. Cable stop. A cable stop will be furnished with each unit which is cap- able of preventing the cable from being inadvertently withdrawn into the reel housing. Cable end ground devices. A welder and a grounding plug (Per MIL-C-83413/4 assembly. The cable end grounding devi style grip

17、 clamp (per MIL-C-83413/7) shall be furnished with each reel es shall not be attached to the cable. 2 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c I A-A-50696 49 I 7999974 0062337 3 8-8-50806 Color. The reel shall be color no. 24052 in accorda

18、nce with FED-STD-595. Cleaning, painting, plating, anodic films, and chemical treatments shall be in accordance with MIL-STD-808. e Electrical resistance. The electrical resistance between the cable free end grounding device or end of cable if no grounding device is furnished (in either extended or

19、retracted condition) and the contact surfaces on the mounting base or the reel frame shall not exceed 10 ohms. Metal components shall be electrically bonded together to prevent sparking during operation. Repairability. The unit shall contain provisions for cable replacement under field conditions. R

20、eplacement of the cable and end attachments shall be accomplished using common hand tools. Lubrication. The drum shaft bearings shall be permanently lubricated and sealed for the life of the unit. The use of grease fittings shall be limited only to the latching mechanism. Where lubricants are requir

21、ed, the reel shall so be designed that excess grease or oil cannot contaminate electrical contacts cawing disruptions in continuity of the unit. Reliability requirements. The unit provided by the contractor shall be capable of a minimum of 5000 cycles (full extensions and retractions) before failure

22、. Caution label. A caution label with Black lettering on a Yellow background Urounding clamps/plugs shall not be allowed to drag across the ramp. shall be packaged with the reel and will read as follows: Clampa/plugs shall be carried to reels on equipment. Quality Aasurance. Responsibility for inspe

23、ction. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection require- ments as specified herein. Except as otherwise specified In the contract, the contractor may use his own or any other facilities suitable for the performance of the inspect

24、ion requirements specified herein, unless disapproved by the Uovernment . Classification of inspection. The inspection requirements specified herein are classified as first article inspection and quality conformance inspection. First article inspection. First article inspection shall be performed on

25、 one static discharge reel when a first article test is specified in the contract or order. This inspection shall determine whether the contractors design meets all the salient characteristics specified herein and shall include examination and functional testing as specified herein. Quality conforma

26、nce inspection. Quality conformance inspection shall be performed on the sample static discharge reels selected in accordance with the inspection lot and sampling requirements. This inspection shall include examination and functional tests as specified herein. 3 Provided by IHSNot for ResaleNo repro

27、duction or networking permitted without license from IHS-,-,-. .- A-A-50696 49 9999974 0UbZI138 3 E V 8-8-50696 Inspection lot. All units of. the same class and style offered to the Government at one time shall be considered a lot for purpose of inspection. No inspection lot shall exceed 500 units.

28、The sample unit shall be one complete reel and the sample size shall be determined by the Government Quality Assur- ance Representative, except that the sample size chosen for reliability testing shall not exceed one reel from each inspection lot. Examination. Each sample selected in accordance with

29、 the inspection lot and sampling requirements, as well as the first article, shall be examined for compliance with salient characteristic requirements specified herein. This element of inspection shall encompass all visual and dimensional measurements. Functional Tests. Electrical resistance. The sa

30、mple reels shall be tested for compliance with the electrical resistance requirements specified herein. Reliability. The sample reels shall be tested for compliance with the reliability requirements specified herein. Heels used for reliability testing shall not be included in any Government shipment

31、 or order, but shall be retain- ed for two years beyond the completion OI the contiact along with all records of inspection and testing. Certi f ication. Contractor certitication. The contractor shall certify and maintain sub- stantiating evldence that the product offered meets the salient character

32、istics of this Commercial Item Description, and that the product conforms to the pro- ducers own drawings, specifications, standards, and quality assurance prac- tices. The government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise p

33、rovided for under the provisions of the contract. Warranty, Manufacturer/Contractor/Vencior warranty. The manufacturers and suppliers standard warranties shall be furnished at no additional cost to the Government. Metric. Metric products. Reels manufactured to metric dimensions will be considered on

34、 an equal basis with those manufactured using inch-pound units, provided they fall within specified tolerances using conversion tables contained in the latest revision of FED-STD-376, and all other requirements of this Commercial Item Description are met. If a product is manufactured to metric dimen

35、sions and those dimensions exceed the tolerances 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. 4 * I l l 1 I I I I I Provided by IHSNot fo

36、r ResaleNo reproduction or networking permitted without license from IHS-,-,-.- r 8-8-50696 Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practicable. Preservation and packaging. Preservation, packa

37、ging, packing, labeling, and marking shall be as specified in the contract or order. lotes, Ordering data. The acquisition document shou Title, number and date of this CID. Part Identifying number as designated d specify the following: by (PIN). First Article Inspection, when required. Whether a com

38、mercial off-the-shelf operating manual is to be furnished. Whether a commercial parts list is to be furnished. Whether applicable manufacturers drawings are to be furnished. Preservation, Packaging and markings to be as specified by the contract. Standardization documents. Copies of MIL-C-83413/4, M

39、IL-C-83413/7, FED-STD-376, FED-STD-598, and MIL-STD-808 are available from the Standardiza- tion Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. Part Identifying Number (PIN). The following PIN is developed for Government purposes and use with this CID. It does no

40、t constitute a require- ment for the contractor: SAMPLE: A-A - 50696 - 1 -Dash number represents length of cable (see Table I.) CID number (does not include revisions). Designates a Commercial Item Description Table I. Codes for Cable Lengths. 1 = 75 foot cable length a I 2 50 foot cable length I 5

41、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50b9b 47 9999974 UOb2140 1 W .- 7 A-A-50696 YILITBBY IWEBESTS: Custodian: Air Force - 99 Review Activities: Air Force - 68, 79 DLA - CS 6 CIVIL COOBDIIATIl3 ACTIVITY: GSA-FSS PBprPAEII(3 ACTIVITY: A

42、ir Force - 82 Agent: DLA - CS Project Number: 4930-F343 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-in H E 7 U I- 2 O U W I !- W I- O Z - ILI z H Z O H I- H Ln 0 a f 4 N N 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-