DEPARTMENT OF DEFENSE INTERFACE STANDARD ELECTROMAGNETIC

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MIL STD 464C ii F O R E W O R D 1 This standard is approved for use by all Departments and Agencies of the Department of Defense 2 This standard contains two sections the main body and an appendix

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Downloaded from http www everyspec com,MIL STD 464C. 1 This standard is approved for use by all Departments and Agencies of the Department of. 2 This standard contains two sections the main body and an appendix The main body of the. standard specifies a baseline set of requirements The appendix portion provides rationale. guidance and lessons learned for each requirement to enable the procuring activity to tailor. the baseline requirements for a particular application The appendix also permits Government. and Industry personnel to understand the purpose of the requirements and potential. verification methodology for a design The appendix is not a mandatory part of this document. 3 A joint committee consisting of representatives of the Army Navy Air Force other DoD. Agencies and Industry participated in the preparation of the basic version of this standard. 4 Comments suggestions or questions on this document should be addressed to. USAF Aeronautical Systems Center ASC ENRS 2530 Loop Road West Wright Patterson AFB. OH 45433 7101 or emailed to Engineering Standards wpafb af mil Since contact. information can change you may want to verify the currency of this address information using. the ASSIST Online database at https assist daps dla mil. Downloaded from http www everyspec com,MIL STD 464C. PARAGRAPH PAGE,1 1 Purpose 1,1 2 Application 1,2 APPLICABLE DOCUMENTS 1. 2 1 General 1,2 2 Government documents 1,2 2 1 Specifications standards and handbooks 1. 2 2 2 Other Government documents drawings and publications 2. 2 3 Non Government publications 3,2 4 Order of precedence 3.
3 DEFINITIONS 4,3 1 Below deck 4,3 2 Compromising emanations 4. 3 3 Electrically initiated device EID 4,3 4 Electromagnetic environmental effects E3 4. 3 5 HERO SAFE ORDNANCE 4,3 6 HERO SUSCEPTIBLE ORDNANCE 4. 3 7 HERO UNSAFE ORDNANCE 5,3 8 High power microwave HPM 5. 3 9 Launch vehicle 5,3 10 Lightning direct effects 5.
3 11 Lightning indirect effects 5,3 12 Margins 5,3 13 Maximum no fire stimulus 5. 3 14 Mission critical 6,3 15 Multipaction 6,3 16 Non developmental item 6. 3 17 Ordnance 6,3 18 Platform 6,Downloaded from http www everyspec com. MIL STD 464C,PARAGRAPH PAGE,3 19 Safety critical 6. 3 20 Shielded area 6,3 21 Spectrum dependent systems 7.
3 22 Space vehicle 7,3 23 Subsystem 7,3 24 System 7. 3 25 System operational performance 7,3 26 TEMPEST 8. 3 27 Topside areas 8,4 GENERAL REQUIREMENTS 9,4 1 General 9. 5 DETAILED REQUIREMENTS 10,5 1 Margins 10, 5 2 Intra system electromagnetic compatibility EMC 10. 5 2 1 Hull generated intermodulation interference IMI 10. 5 2 2 Shipboard internal electromagnetic environment EME 10. 5 2 3 Multipaction 11, 5 2 4 Induced levels at antenna ports of antenna connected receivers 11.
5 3 External RF EME 11,5 4 High power microwave HPM sources 18. 5 5 Lightning 18,5 6 Electromagnetic pulse EMP 21, 5 7 Subsystems and equipment electromagnetic interference EMI 21. 5 7 1 Non developmental items NDI and commercial items 21. 5 7 2 Shipboard DC magnetic field environment 21,5 8 Electrostatic charge control 21. 5 8 1 Vertical lift and in flight refueling 21,5 8 2 Precipitation static p static 22. 5 8 3 Ordnance subsystems 22,Downloaded from http www everyspec com.
MIL STD 464C,PARAGRAPH PAGE,5 8 4 Electrical and electronic subsystems 22. 5 9 Electromagnetic radiation hazards EMRADHAZ 22, 5 9 1 Hazards of electromagnetic radiation to personnel HERP 22. 5 9 2 Hazards of electromagnetic radiation to fuel HERF 23. 5 9 3 Hazards of electromagnetic radiation to ordnance HERO 23. 5 10 Life cycle E3 hardness 25,5 11 Electrical bonding 25. 5 11 1 Power current return path 25,5 11 2 Antenna installations 25. 5 11 3 Mechanical interfaces 25, 5 11 4 Shock fault and ignitable vapor protection 26.
5 12 External grounds 26,5 12 1 Aircraft grounding jacks 26. 5 12 2 Servicing and maintenance equipment grounds 27. 5 13 TEMPEST 27,5 14 System radiated emissions 27,5 14 1 Emission control EMCON 27. 5 14 2 Inter system EMC 28,5 15 EM spectrum supportability 28. 6 NOTES 29,6 1 Intended use 29,6 2 Associated Data Item Descriptions DIDs 29. 6 3 Tailoring guidance for contractual application 29. 6 4 Subject term key word listing 30, 6 5 International standardization agreement implementation 30.
6 6 Acronyms used in this standard 31,6 7 Technical points of contact 31. 6 8 Changes from previous issue 32,Downloaded from http www everyspec com. MIL STD 464C,PARAGRAPH PAGE,APPENDIX A APPLICATION GUIDE 33. A 1 SCOPE 33,A 1 1 Scope 33,A 2 APPLICABLE DOCUMENTS 33. A 2 1 Government documents 33,A 2 1 1 Specifications standards and handbooks 33.
A 2 1 2 Other Government documents drawings and publications 36. A 2 2 Non Government publications 39,A 3 ACRONYMS 41. A 4 GENERAL REQUIREMENTS AND VERIFICATION 43,A 4 1 General 43. A 5 DETAILED REQUIREMENTS 47,A 5 1 Margins 47, A 5 2 Intra system electromagnetic compatibility EMC 51. A 5 2 1 Hull generated intermodulation interference IMI 57. A 5 2 2 Shipboard internal electromagnetic environment EME 58. A 5 2 3 Multipaction 65, A 5 2 4 Induced levels at antenna ports of antenna connected receivers 66. A 5 3 External RF EME 68,A 5 4 High power microwave HPM sources 78.
A 5 5 Lightning 84,A 5 6 Electromagnetic pulse EMP 91. A 5 7 Subsystems and equipment electromagnetic interference EMI 98. A 5 7 1 Non developmental items NDI and commercial items 102. A 5 7 2 Shipboard DC magnetic field environment 105. A 5 8 Electrostatic charge control 106,A 5 8 1 Vertical lift and in flight refueling 109. A 5 8 2 Precipitation static P static 111,A 5 8 3 Ordnance subsystems 114. Downloaded from http www everyspec com,MIL STD 464C. PARAGRAPH PAGE,A 5 8 4 Electrical and electronic subsystems 115.
A 5 9 Electromagnetic radiation hazards EMRADHAZ 116. A 5 9 1 Hazards of electromagnetic radiation to personnel HERP 116. A 5 9 2 Hazards of electromagnetic radiation to fuel HERF 118. A 5 9 3 Hazards of electromagnetic radiation to ordnance HERO 119. A 5 10 Life cycle E3 hardness 124,A 5 11 Electrical bonding 129. A 5 11 1 Power current return path 134,A 5 11 2 Antenna installations 135. A 5 11 3 Mechanical interfaces 136, A 5 11 4 Shock fault and ignitable vapor protection 139. A 5 12 External grounds 140,A 5 12 1 Aircraft grounding jacks 143. A 5 12 2 Servicing and maintenance equipment grounds 145. A 5 13 TEMPEST 146,A 5 14 System radiated emissions 148.
A 5 14 1 Emission control EMCON 148,A 5 14 2 Inter system EMC 151. A 5 15 EM spectrum compatibility 153,FIGURE 1 Lightning direct effects environment 19. FIGURE 2 Lightning indirect effects environment 20. FIGURE A 1 CCF of select surface ships 62, FIGURE A 2 Lightning indirect effects waveform parameters 86. FIGURE A 3 Unclassified free field EMP time domain environment IEC 61000 2 9 92. FIGURE A 4 Unclassified free field EMP frequency domain environment IEC 61000 2 9 93. FIGURE A 5 Unclassified nominal HEMP composite environment E1 E2 and E3 94. Downloaded from http www everyspec com,MIL STD 464C. PARAGRAPH PAGE, TABLE I Maximum external EME for deck operations on Navy ships 12.
TABLE II Maximum external EME for ship operations in the main beam of transmitters 13. TABLE III Maximum external EME for space and launch vehicle systems 14. TABLE IV Maximum external EME for ground systems 15. TABLE V Maximum external EME for rotary wing aircraft including UAVs. excluding shipboard operations 16, TABLE VI Maximum external EME for fixed wing aircraft including UAVs. excluding shipboard operations 17, TABLE VII Lightning indirect effects waveform parameters 20. TABLE VIII Electromagnetic fields from near strike lightning cloud to ground 21. TABLE IX Maximum external EME levels for ordnance 24. TABLE X Ordnance phases and associated environments 25. TABLE XI EMCON bandwidths 28,TABLE A I Type of EMI EMC testing 55. TABLE A II Summary of recommendations 63,TABLE A III Specialized rotorcraft testing 77. TABLE A IV External EME for narrowband HPM 79,TABLE A V External EME for wideband HPM 80.
TABLE A VI Narrowband HPM threats 82,TABLE A VII Wideband HPM threats 82. TABLE A VIII Stand off distance ranges for generic fighter attack aircraft 82. TABLE A IX Narrowband HPM threats divided by range 83. TABLE A X Wideband HPM threats divided by range 83. TABLE A XI Lightning indirect effects waveform characteristics 86. TABLE A XII HERO EME test levels 123,Downloaded from http www everyspec com. MIL STD 464C,1 1 Purpose, This standard establishes electromagnetic environmental effects E3 interface requirements. and verification criteria for airborne sea space and ground systems including associated. 1 2 Application, This standard is applicable for complete systems both new and modified. 2 APPLICABLE DOCUMENTS,2 1 General, The documents listed in this section are specified in sections 3 4 or 5 of this standard This.
section does not include documents cited in other sections of this standard 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 cited in sections 3 4 or 5 of this standard whether or not they are. 2 2 Government documents,2 2 1 Specifications standards and handbooks. The following specifications standards and handbooks 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,INTERNATIONAL STANDARDIZATION AGREEMENTS. AECTP 500 Electromagnetic Environmental Effects Test and. Verification,DEPARTMENT OF DEFENSE STANDARDS, MIL STD 331 Fuze and Fuze Components Environmental and. Performance Tests for, MIL STD 461 Requirements for the Control of Electromagnetic. Interference Characteristics of Subsystems and, DOD STD 1399 70 1 Interface Standard for Shipboard Systems Section.
070 Part 1 D C Magnetic Field Environment,Downloaded from http www everyspec com. MIL STD 464C, MIL STD 1605 SH Procedures for Conducting a Shipboard. Electromagnetic Interference EMI Survey Surface, MIL STD 2169 High Altitude Electromagnetic Pulse Environment U. Copies of these documents are available online at https assist daps dla mil quicksearch or. from the Standardization Document Order Desk 700 Robbins Avenue Building 4D. Philadelphia PA 19111 5094 Application for copies of MIL STD 2169 should be addressed with. a need to know to Defense Threat Reduction Agency ATTN RD NTSA 8725 John J Kingman. RD STOP 6201 Fort Belvoir VA 22060 6201,DEPARTMENT OF DEFENSE HANDBOOKS. MIL HDBK 240 Hazards of Electromagnetic Radiation to Ordnance. HERO Test Guide, Copies of this document are available online at https assist daps dla mil quicksearch or.
from the Standardization Document Order Desk 700 Robbins Avenue Building 4D. Philadelphia PA 19111 5094, 2 2 2 Other Government documents drawings and publications. The following other Government documents drawings and publications 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. INTEL REPORTS, Information Operations Capstone Threat Assessment Report Latest Edition. Copies of this document are available via SIPRNET at. http www intelink sgov gov wiki PROGRAM THREAT SUPPORT. PUBLICATIONS, CNSS TEMPEST 01 02 Advisory Memorandum NONSTOP Evaluation. DoDI 4650 01 Policy and Procedures for Management and Use of. the Electromagnetic Spectrum, DoDI 6055 11 Protecting Personnel from Electromagnetic Fields. NSTISSAM TEMPEST 1 92 Compromising Emanations Laboratory Test. Requirements Electromagnetics, NTIA Manual of Regulations and Procedures for Federal.
Radio Frequency Management,Downloaded from http www everyspec com. MIL STD 464C, Copies of CNSS and NSTISSAM documents are available only through the procuring activity. Copies of DoD Instructions are available online at http www dtic mil whs directives. Copies of the NTIA Manual are available from the U S Government Printing Office. Superintendent of Documents P O Box 371954 Pittsburgh PA 15250 7954. 2 3 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. AMERICAN NATIONAL STANDARDS INSTITUTE ANSI, ANSI IEEE C63 14 Dictionary of Electromagnetic Compatibility EMC. Including Electromagnetic Environmental Effects E3. Copies are available from the Institute of Electrical and Electronic Engineers IEEE Service. Center 445 Hoes Lane P O Box 1331 Piscataway NJ 08855 1331 or online at. http www ieee org, INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ISO.
ISO 46 Aircraft Fuel Nozzle Grounding Plugs and Sockets. Copies of this document are available from the International Organization for Standardization. 3 rue de Varembe 1211 Geneve 20 Geneve Switzerland or online at. http www iso ch iso en ISOOnline openerpage,2 4 Order of precedence. Unless otherwise 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 obtained,Downloaded from http www everyspec com. MIL STD 464C,3 DEFINITIONS, The terms used in this standard are defined in ANSI Standard C63 14 In addition the following. definitions are applicable for the purpose of this standard. 3 1 Below deck, An area on ships that is surrounded by a metallic structure such as the hull or superstructure of. metallic surface ships the hull of a submarine the screened areas or rooms of non metallic. ships the screened areas of ships utilizing a combination of metallic non metallic material for. hull and superstructure or a deck mounted metallic shelter. 3 2 Compromising emanations, Unintentional intelligence bearing signals which if intercepted and analyzed disclose the.
national security information transmitted received handled or otherwise processed by any. classified information processing system,3 3 Electrically initiated device EID. An EID is a single unit device or subassembly that uses electrical energy to produce an. explosive pyrotechnic thermal or mechanical output Examples include electroexplosive. devices such as hot bridgewire semiconductor bridge carbon bridge and conductive. composition exploding foil initiators laser initiators burn wires and fusible links. 3 4 Electromagnetic environmental effects E3, The impact of the electromagnetic environment EME upon the operational capability of. military forces equipment systems and platforms E3 encompasses the electromagnetic. effects addressed by the disciplines of electromagnetic compatibility EMC electromagnetic. interference EMI electromagnetic vulnerability EMV electromagnetic pulse EMP. electronic protection EP electrostatic discharge ESD and hazards of electromagnetic. radiation to personnel HERP ordnance HERO and volatile materials HERF E3 includes the. electromagnetic effects generated by all EME contributors including radio frequency RF. systems ultra wideband devices high power microwave HPM systems lightning. precipitation static etc,3 5 HERO SAFE ORDNANCE, Any ordnance item that is sufficiently shielded or otherwise so protected that all electrically. initiated devices EIDs contained by the item are immune to adverse effects safety or. reliability when the item is employed in the radio frequency environment delineated in MIL. STD 464 The general hazards of electromagnetic radiation to ordnance requirements defined. in the hazards from electromagnetic radiation manuals must still be observed Note. Percussion initiated ordnance have no HERO requirements. 3 6 HERO SUSCEPTIBLE ORDNANCE, Any ordnance item containing electro explosive devices proven by test or analysis to be. adversely affected by radio frequency energy to the point that the safety and or reliability of. Downloaded from http www everyspec com,MIL STD 464C.
the system is in jeopardy when the system is employed in the radio frequency environment. delineated in MIL STD 464,3 7 HERO UNSAFE ORDNANCE. Any ordnance item containing electrically initiated devices that have not been classified as. HERO SAFE or HERO SUSCEPTIBLE ordnance as a result of a hazards of electromagnetic. radiation to ordnance HERO analysis or test Additionally any ordnance item containing. electrically initiated devices including those previously classified as HERO SAFE or HERO. SUSCEPTIBLE ordnance that has its internal wiring exposed when tests are being conducted on. that item that result in additional electrical connections to the item when electrically initiated. devices having exposed wire leads are present and handled or loaded in any but the tested. condition when the item is being assembled or disassembled or when such ordnance items. are damaged causing exposure of internal wiring or components or destroying engineered. HERO protective devices,3 8 High power microwave HPM. A radio frequency environment produced by microwave sources weapon capable of emitting. high power or high energy densities The HPM operating frequencies are typically between 100. MHz and 35 GHz but may include other frequencies as technology evolves The source may. produce microwaves in the form of a single pulse repetitive pulses pulses of more complex. modulation or continuous wave CW emissions,3 9 Launch vehicle. A composite of the initial stages injection stages space vehicle adapter and fairing having the. capability of launching and injecting a space vehicle or vehicles into orbit. 3 10 Lightning direct effects, Any physical damage to the system structure and electrical or electronic equipment due to the. direct attachment of the lightning channel and current flow These effects include puncture. tearing bending burning vaporization or blasting of hardware. 3 11 Lightning indirect effects, Electrical transients induced by lightning due to coupling of electromagnetic fields These.
effects include malfunction or damage to electrical electronic equipment. 3 12 Margins, The difference between the subsystem and equipment electromagnetic strength level and the. subsystem and equipment stress level caused by electromagnetic coupling at the system level. Margins are normally expressed as a ratio in decibels dB. 3 13 Maximum no fire stimulus, The greatest firing stimulus which does not cause initiation within five minutes of more than. 0 1 of all electric initiators of a given design at a confidence level of 95 When determining. maximum no fire stimulus for electric initiators with a delay element or with a response time of. Downloaded from http www everyspec com,MIL STD 464C. more than five minutes the firing stimulus will be applied for the time normally required for. 3 14 Mission critical, Unless otherwise defined in the procurement specification a term applied to a condition. event operation process or item which if performed improperly may 1 prohibit execution of. a mission 2 significantly reduce the operational capability or 3 significantly increase system. vulnerability,3 15 Multipaction, Multipaction is a radio frequency RF resonance effect that occurs only in a high vacuum where.
RF field accelerates free electrons resulting in collisions with surfaces creating secondary. electrons that are accelerated resulting in more electrons and ultimately a major discharge and. possible equipment damage,3 16 Non developmental item. Non developmental item is a broad generic term that covers material both hardware and. software available from a wide variety of sources with little or no development effort required. by the Government,3 17 Ordnance, Explosives chemicals pyrotechnics and similar stores such as bombs guns ammunitions. flares electroexplosive devices smoke and napalm carried on an airborne sea space or. ground systems,3 18 Platform, A mobile or fixed installation such as a ship aircraft ground vehicles and shelters launch space. vehicles shore or ground station For the purposes of this standard a platform is considered a. 3 19 Safety critical, Unless otherwise defined in the procurement specification a term applied to a condition. event operation process or item whose proper recognition control performance or tolerance. is essential to safe system operation or use for example safety critical function safety critical. path or safety critical component A term also used when a failure or malfunction of a system. or subsystem can cause death or serious injury to personnel. 3 20 Shielded area, An area not directly exposed to EM energy This includes shielded spaces compartments and.
rooms areas inside the hull and superstructure of metallic hull ships areas inside metallic. shelters a metallic enclosure or a metallic mast and areas in screen rooms on nonmetallic hull. Downloaded from http www everyspec com,MIL STD 464C. 3 21 Spectrum dependent systems, All electronic systems subsystems devices and or equipment that depend on the use of the. spectrum to properly accomplish their function s without regard to how they were acquired. full acquisition rapid acquisition Joint Concept Technology Demonstration etc or procured. commercial off the shelf government off the shelf non developmental items etc. 3 22 Space vehicle, A complete integrated set of subsystems and components capable of supporting an. operational role in space A space vehicle may be an orbiting vehicle a major portion of an. orbiting vehicle or a payload of an orbiting vehicle which performs its mission while attached. to a recoverable launch vehicle The airborne support equipment which is peculiar to. programs utilizing a recoverable launch vehicle is considered a part of the space vehicle being. carried by the launch vehicle,3 23 Subsystem, A portion of a system containing two or more integrated components that while not. completely performing the specific function of a system may be isolated for design test or. maintenance Either of the following are considered subsystems for the purpose of establishing. EMC requirements In either case the devices or equipments may be physically separated. when in operation and will be installed in fixed or mobile stations vehicles or systems. a A collection of devices or equipments designed and integrated to function as a single. entity but wherein no device or equipment is required to function as an individual. device or equipment, b A collection of equipment and subsystems designed and integrated to function as a.
major subdivision of a system and to perform an operational function or functions. Some activities consider these collections as systems however as noted above they. will be considered as subsystems,3 24 System, A composite of equipment subsystems skilled personnel and techniques capable of. performing or supporting a defined operational role A complete system includes related. facilities equipment subsystems materials services and personnel required for its operation. to the degree that it can be considered self sufficient within its operational or support. environment See 3 18,3 25 System operational performance. A set of minimal acceptable parameters tailored to the platform and reflecting top level. capabilities such as range probability of kill probability of survival operational availability and. so forth A primary aspect of acquisition related to this definition are key performance. parameters KPPs which are used in acquisition to specify system characteristics that are. considered most essential for successful mission accomplishment and that are tracked during.

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