DLA DESC-DWG-90095 REV B-2010 SHIELDING TAPE EMI KNITTED WIRE MESH.pdf

1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Changed height tolerance on figure 1. Changed measurement requirements in 4.4.2. Added two vendors in 6.5. Editorial changes throughout. 4 Mar 91 Randy Larson B Incorporated boilerplate updates. 19 Nov 10 Michael A. Radecki Prepared in accordance with ASME

2、Y14.100 Source control drawing REV STATUS OF PAGES REV B B B B B B B B PAGES 1 2 3 4 5 6 7 8 PMIC N/A PREPARED BY Jim B. Walker DESIGN ACTIVITY DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OH 45444-5000 Original date of drawing 31 October 1990 CHECKED BY Bud Boulter TITLE SHIELDING TAPE, EMI, KNITTED W

3、IRE MESH APPROVED BY Randy Larson SIZE A CODE IDENT. NO. 14933 DWG NO. 90095 REV B PAGE 1 OF 8 AMSC N/A 5999-E227 CURRENT DESIGN ACTIVITY CAGE CODE 037Z3 HAS CHANGED TO: DLA LAND AND MARITIME COLUMBUS, OHIO 43218-3990 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen

4、se from IHS-,-,-DEFENSE SUPPLY CENTER COLUMBUS DAYTON, SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 2 1. SCOPE 1.1 Scope. This drawing covers the requirements for a knitted wire mesh tape suitable for EMI shielding, grounding, and static discharge applications. 1.2 Part or Identifying Numbe

5、r (PIN). The complete PIN shall be as follows: 90095 -001 | | | | Drawing number Dash number (see figure 1) 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sectio

6、ns of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents in sections 3 and 4 of this specification, whether or

7、not they are listed. 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM

8、-B520 - Wire Steel, for Electronic Applications, Tin-Coated, Copper-Clad. (Application for copies may be obtained online at www.astm.org or from American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERING (IEEE) IEEE 299

9、- Enclosures, Electromagnetic Shielding, Measuring the Effectiveness of. (Application for copies may be obtained online at www.ieee.org from Institute of Electrical and Electronics Engineers, IEEE Service Center, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855). 2.4 Order of precedence. Unless ot

10、herwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtain

11、ed. 3. REQUIREMENTS 3.1 Interface and physical dimensions. Interface and physical dimensions shall be as specified on figure 1. The tape is available in 25 feet, 100 feet, and 1,000 feet lengths as indicated. 3.2 Material. The shielding tape shall be made of tin-lead coated, copper-clad steel wires.

12、 The wire size shall be .0045 .0005 inches in diameter, in accordance with ASTM-B520. 3.3 Cross section. The cross section and Sn/Cu/Fe distribution of the individual wires shall be as specified on figure 2. 3.4 Weight. Maximum weight shall be 8.4 ounces per 100 feet. 3.5 Characteristics. 3.5.1 Pull

13、 strength. The minimum pull strength shall be 40 pounds. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 3 3.5.2 Elongation. The maximum elongation s

14、hall be 100 percent. 3.5.3 Shielding effectiveness. The shielding effectiveness of the tape shall be in accordance with table I. The test method shall be in accordance with 4.4.3. TABLE I. Shielding effectiveness. Frequency Minimum value 100 kHz, H-field 10 MHz, E-field 1 GHz, plane wave 10 GHz, pla

15、ne wave 45 dB 60 dB 40 dB 30 dB 3.6 Tape length versus cable size. Recommended tape lengths and cable sizes are shown on figure 3. 3.7 Methods for applying. The tape should be wrapped around the cable assembly. Wrap the main cable and terminate the tape before beginning to wrap the cable branch. Sta

16、rt and end all helical wrapping with a minimum of two overlapping circumferential wraps. At branch connections, start at least 4 inches before and after the branch to assure adequate tape coverage of the “V“ section. Branch connections should not be designed to occur within 4 inches (101.6 mm) of ea

17、ch other. Recommended lead for most applications is .5 inch (12.7 mm), although some additional shielding will be achieved when utilizing a .25-inch (6.35 mm) lead. The length of tape required for each cable using these two types of lead wraps is shown on figure 3. Provided by IHSNot for ResaleNo re

18、production or networking permitted without license from IHS-,-,-DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 4 PIN 90095- Length (feet) 001 25 002 100 003 1,000 Inch mm Foot Meter .002 0.05 25 7.62 .020 0.51 100 30.48 .10 2.5 1,000 304.80 1.00

19、25.4 - - NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. FIGURE 1. Dimensions and configuration. FIGURE 2. Cross section and SN/Cu/Fe distribution. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFE

20、NSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 5 NOTE: For each termination and/or branch connection, add 30 inches (762.0 mm) of tape to anticipated usage. FIGURE 3. Tape length versus cable size. 3.8 Termination. The tape may be terminated by means

21、 of silver-filled, conductive epoxy, soldering, or clamping. 3.9 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and m

22、aintenance requirements, and promotes economically advantageous life cycle costs. 3.10 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be an approved source of supply. 3.11 Marking. Tape need not be marked. Packages shall be marked in accorda

23、nce with 5.1. 3.12 Workmanship. Tape shall be representative of controlled industrial techniques. Surfaces shall be free of dirt, kinks, scale, lumps, corrosion, or other defects which could affect the life, serviceability, or performance of the tape. 4. VERIFICATION 4.1 Sampling and inspection. Unl

24、ess otherwise specified, sampling and inspection procedures shall be performed in accordance with table II. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B

25、 SHEET 6 4.2 Conformance inspection. 4.2.1 Inspection of product for delivery. The inspection of the product for delivery shall consist of the group A inspection as specified in table II. TABLE II. Group A inspection. Inspection Requirement paragraph Test method paragraph Number of allowable defects

26、 Dimensions 3.2 4.2.3 and 4.4.2 0 4.2.2 Inspection lot. An inspection lot shall consist of all tape and test specimens made from one batch. 4.2.3 Sampling inspection for dimensions. A dimension measurement shall be made on each roll or spool at a point 3 feet from its end. 4.3 Rejected lots. If an i

27、nspection lot is rejected, the supplier may rework it to correct the defects, then resubmit the lot for inspection. Resubmitted lots shall be inspected using tightened inspection procedures. Such lots shall be separated from new lots and shall be clearly identified as re-inspected lots. 4.4 Methods

28、of inspection. 4.4.1 Test conditions. Unless otherwise specified, the inspections and tests shall be performed at a temperature of +20C 5C, a relative humidity of 45 to 75 percent, and an atmospheric pressure of 650 to 800 millibars of mercury. 4.4.2 Visual inspection. A visual inspection shall be m

29、ade to verify conformance to the requirements for dimensions, materials, marking, and workmanship (see 3.1, 3.2, 3.12, and 3.13, respectively). The height dimension (H) shall be measured using a dial gauge with a 2-ounce to 4-ounce load and a .75-inch (19.05 mm) anvil. The width dimension (W) shall

30、be measured with either an optical X-Y table microscope with an electronic output accurate to .001 inch (0.03 mm), or a vernier caliper accurate to .001 inch (0.03 mm). 4.4.3 Shielding effectiveness (see 3.5.3). A shielding effectiveness test shall be performed in accordance with IEEE-299, except th

31、at the aperture size shall be 5 by 5 inches (127.0 mm). The shielding tape shall be used as an interface gasket between the aperture plate and the shielded enclosure. 5. PACKAGING 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see

32、6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activities within the M

33、ilitary Service or Defense Agency, or within the military services system commands. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. Provided by IHSNot for

34、ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 7 6. NOTES (This section contains information of a general or explanatory nature which may be helpful, but is not mandatory.

35、) 6.1 Intended use. Shielding tape manufactured in accordance with this drawing is intended to be used when military specifications do not exist or when qualified products that will perform the required function are unavailable. 6.2 Ordering data. The contract or purchase order should specify the fo

36、llowing: a. Complete PIN (see 1.2). b. Requirements for delivery of one copy of the conformance inspection data or certificate of compliance that parts have passed conformance inspection with each shipment of parts by the manufacturer. c. Requirement for the manufacturer to notify the contracting ac

37、tivity in the event of a change in the product. d. Requirements for packaging and packing. 6.3 Replaceability. Shielding tape covered by this drawing shall replace similar commercial products manufactured in accordance with contractor - prepared specifications and drawings. 6.4 Users of record. Coor

38、dination of this document for future revisions is coordinated only with the approved source(s) of supply and the users of record of this document. Requests to be added as a recorded user of this drawing may be achieved online at mailto:relaydla.mil or if in writing to: DLA Land and Maritime, Columbu

39、s, ATTN: DLA Land and Maritime/VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-4481 or DSN 850-4481. 6.5 Approved source(s) of supply. Approved source(s) of supply are listed herein. Additional sources will be added as they become available. Assistance in the use of this

40、 drawing may be obtained online at mailto:relaydla.mil, or by contacting DLA Land and Maritime, ATTN: DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-4481 or DSN 850-4481. DLA Land and Maritime drawing PIN 90095- Similar vendor PIN 1/ CAGE 18565 CAG

41、E 27565 CAGE 53TQ8 CAGE 0V7J1 001 03-0804-C902 395-001 23-50225 38-1015-0440 002 03-0804-C903 395-002 23-50200 38-1015-0441 003 03-0804-C904 395-003 23-04016 38-1015-0442 1/ Parts must be purchased to the DLA LAND AND MARITIME PIN to assure that all performance requirements and tests are met. Provid

42、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONICS SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 90095 REV B SHEET 8 Vendor CAGE Vendor name number and address 18565 Parker-Hannifin Corporation, Chomerics Division 77 Drago

43、n Court Woburn, MA 01888-4014 (781) 939-4311 27565 Ja-Bar Silicone Corporation 252 Brighton Road Andover, NJ 07821-5032 973-786-5000 53TQ8 Parker-Hannifin Corporation Chomerics Division, Tecknit Business Unit 135 Bryant Avenue Cranford, NJ 07016-3212 (781) 939-4311 0V7J1 Effective Shielding Company, Inc. 817 Lincoln Avenue West Chester, PA 19380-4435 (610) 429-9449 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-