RIX Industries Flow Downs

12/15/2020

Description:

EMI Test Report IAW MIL-STD-461

Clause:

1. GeneralThe purchase order (PO) item shall be qualified by a NAVSEA approved Electromagnetic Interference Test Report (EMITR).The PO item’s EMITR qualification shall be satisfied by one of the following:1.1 Use of a Listed EMITRWhen a NAVSEA approved EMITR number and revision is listed in the PO item’sspecification data and the Supplier’s name is listed under the EMITR, no submittal isrequired for this coded note. When no submittal is required, the Supplier is authorized to perform work.1.2 Use of an Unlisted EMITRWhen NNS has previously approved an EMITR and the EMITR number and revision isnot listed in the PO item’s specification data, the Supplier shall submit notification toNewport News Shipbuilding (NNS).The notification to NNS for the previously approved EMITR shall be in accordance withSection 5.3 of this coded note.The Supplier shall not resubmit an EMITR that has been previously approved.1.3 Use of an EMITR Pending ApprovalWhen an EMITR from a previous PO has been submitted and is pending approval andthe EMITR number and revision is not listed in the PO item’s specification data, theSupplier shall submit notification to NNS.The notification to NNS for the existing EMITR pending approval shall be in accordancewith Section 5.2 of this coded note.The Supplier shall not resubmit an EMITR that has already been submitted and ispending approval.1.4 Approval of a Newly Developed EMITRWhen the PO item’s specification data does not identify an EMITR number andrevision and the Supplier’s name for the EMITR, the EMI Test Facility used by theSupplier shall develop a new EMITR.The newly developed EMITR shall be written and submitted in accordance with Section2 “Format” through Section 5 “Approval” of this coded note.The Supplier shall submit a request for approval with the EMITR in accordance withSection 5.1 of this coded note.2. FormatContractor format is acceptable.3. ContentThe EMITR shall contain the following:1. Administrative data. The EMITR shall contain an administrative section covering thefollowing:a. Contract number.b. Authentication and certification of performance of the tests by a qualifiedrepresentative of the procuring activity.c. Disposition of the Equipment Under Test (EUT).d. Description of the EUT, including its function, characteristics, intendedinstallation, actual cable types (characteristics and construction details - see4.3.8.6 of MIL-STD-461), and electrical current usage on each power inputline.e. List of tests performed with pass/fail indications.f. Any approved deviations from contractual test procedures or limits previouslyauthorized.g. Identification of Non-Developmental Items (NDI) and Government FurnishedEquipment (GFE) that may be part of the EUT.h. Traceability of test equipment calibration.i. A reference to the approved EMI test procedure (EMITP).2. Detailed results. A separate appendix shall be prepared for each test. If deviationsfrom an approved test procedure occurred during the test program, an additionalappendix shall be provided with the “as run” procedures showing all red-lines andprocuring activity concurrence. A separate appendix shall be provided for log sheets.Each test appendix shall contain the following factual data:a. Test equipment nomenclature, serial numbers, version of software used (ifany), and calibration due date.b. Photographs or diagrams of the actual test set up and EUT, withidentification.c. Transfer impedance of current probes.d. Antenna factors.e. Impedance values of Line Impedance Stabilization Networks (LISN).f. Identification of any suppression devices used to meet the contractualrequirements, including schematics, performance data, and drawings.g. Sample calculations, such as conversions of measured levels for comparisonagainst the applicable limit.h. The ambient radiated and conducted electromagnetic emission profile of thetest facility, when necessary.i. Data, and data presentation, as specified in the “data presentation” sectionsof the individual test procedures of MIL-STD-461. Emissions data cannot beprovided on one single sheet (plot). Provide a minimum frequency resolutionof 1% or twice the measurement receiver bandwidth, whichever is lessstringent, and a minimum amplitude resolution of 1 dB for each plot.j. Scan speeds.k. Measurement receiver bandwidths.l. Antenna polarization.m. Power line voltages, frequencies, and power factor.n. Low-noise amplifiers (LNA) compression points.o. Test susceptibilities and deviations from normal performance are notacceptable. However, when susceptibility indications or deviations fromnormal performance are noted in the EUT operation, a threshold level shallbe determined where the susceptible condition or deviation is no longerpresent. These thresholds need to be documented for further assessment.3. Conclusions and recommendations. Conclusions and recommendations shall beprovided, including results of the tests in brief narrative form, a discussion of anyremedial actions already initiated, and proposed corrective measures required (ifnecessary) to assure compliance of the equipment or subsystem with the contractualEMI requirements.4. DeliveryShipbuilding Partners and Suppliers (SPARS) enabled suppliers shall submit one (1)electronic copy through: https://spars.huntingtoningalls.com/ngcspars/Auth.All suppliers that are not SPARS enabled shall mail seven (7) hard copies to:Newport News Shipbuilding4101 Washington Ave.Newport News, VA 23607Attn: E68 Software CoordinatorBldg. 902-25. Approval5.1 Newly Developed EMITRThe request for approval for the newly developed EMITR shall include:a. PO number,b. PO item number(s),c. NNS material number(s),d. coded note number Q4120, ande. the EMITR number and revision.The Supplier should expect NAVSEA approval of the newly developed EMITR to takeapproximately six (6) months.5.2 Pending Approval of Existing EMITRThe notification to NNS for the existing EMITR pending approval shall include:a. PO number,b. PO item number(s),c. NNS material number(s),d. coded note number Q4120,e. the EMITR number and revision,f. PO number of previous submittal, andg. PO item number(s) of previous submittal.5.3 Previously Approved EMITRThe notification to NNS for the previously approved EMITR shall include:a. PO number,b. PO item number(s),c. NNS material number(s),d. coded note number Q4120,e. the EMITR number and revision,f. PO number of previous submittal,g. PO item number(s) of previous submittal, andh. letter number of previous approval.Revision History TableRev Description Revision DateC010 Removed-mail address submittal option. 07/7/16C011 Complete rewrite of PPN and Appendix S. 12/13/18C012 Revised: Mailing address- changed E45 to E68. 12-15-2020This revision history is provided for convenience and does not alleviate the supplier’s responsibility withunderstanding and complying with the full coded note.