1、METRICMIL-STD-188-125-117 July 1998SUPERSEDINGMIL-STD-188-125A15 February 1994(3$570(17 2) ()(16(,17(5)$ distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1iiHIGH-ALTITUDE ELECTROMAGNETIC PULSE (HEMP) PROTECTIO
2、N FOR FIXED GROUND-BASED C I FACILITIES PERFORMING CRITICAL,4TIME-URGENT MISSIONSF O R E W O R D1. This military standard is approved for use by all Departments and Agencies of theDepartment of Defense (DoD). 2. Originally, Military Standard 188 (MIL-STD-188) covered technical standards for tactical
3、and long-haul communications, but later evolved through revisions (MIL-STD-188A, MIL-STD-188B) into a document applicable to tactical communications only (MIL-STD-188C).3. The Defense Information Systems Agency (DISA) published DISA circulars (DISAC)promulgating standards and engineering criteria ap
4、plicable to the long-haul DefenseCommunication System and to the technical support of the National Military CommandSystem.4. As a result of a Joint Chiefs of Staff action, standards for all military communications arenow being published in a MIL-STD-188 series of documents. The MIL-STD-188 series is
5、subdivided into a MIL-STD-188-100 series, covering common standards for tactical and long-haul communications; a MIL-STD-188-200 series, covering standards for tacticalcommunications only; and a MIL-STD-188-300 series, covering standards for long-haulcommunications only. Emphasis is being placed on
6、developing common standards for tacticaland long-haul communications published in the MIL-STD-188-100 series.5. This two-part document contains technical requirements and design objectives for high-altitude electromagnetic pulse (HEMP) protection of ground-based systems and facilities thatare nodes
7、in HEMP-hardened networks for performing critical and time-urgent command,control, communications, computer, and intelligence (C I) missions. This part 1 of the4document addresses HEMP hardening for fixed facilities; Part 2 addresses transportablesystems. The requirements are stringent, in order to
8、avoid both damage and functional upsetsthat prevent mission accomplishment within operationally prescribed timelines. The standardsapply uniformly to all systems and facilities in the end-to-end chain, since disruption of asingle node may result in network failure.6. Use of the standard for HEMP pro
9、tection of other fixed ground-based communications-electronics facilities that require HEMP hardening is encouraged to the extent permitted bycost constraints.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1iii7. Performance, accepta
10、nce test, and verification test requirements are contained in the bodyof the standard. HEMP-unique acceptance and verification test techniques are provided inAppendices A, B, and C.8. Implementation of MIL-STD-188-125-1 is supported by MIL-HDBK-423, “High-Altitude Electromagnetic Pulse (HEMP) Protec
11、tion for Fixed and Transportable Ground-BasedFacilities, Volume I: Fixed Facilities.“ The handbook also includes HEMP program planning,management, logistics, and data requirements for critical, time-urgent, fixed ground-basedfacilities.9. Beneficial comments (recommendations, additions, deletions) a
12、nd any pertinent datawhich may be of use in improving this document should be addressed to: Defense SpecialWeapons Agency/ESE, 6801 Telegraph Road, Alexandria, VA 22310-3398, by using theStandardization Document Improvement Proposal (DD Form 1426) appearing at the end ofthis document or by letter.Pr
13、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N T SPARAGRAPH PAGEivFOREWORD ii 1. SCOPE . 1 1.1 Purpose . 1 1.2 Scope . 1 1.3 Applications 1 1.4 Objectives . 1 2. APPLICABLE DOCUMENTS 2 2.1 General . 2 2.2 Government docume
14、nts . 2 2.2.1 Specifications, standards, and handbooks 2 2.2.2 Other Government documents, drawings, and publications . 3 2.3 Non-Government publications 3 2.4 Order of precedence 4 3. DEFINITIONS . 5 3.1 Acronyms used in this standard . 5 3.2 Sources for definitions 7 3.3 Definitions . 8 3.3.1 Aper
15、ture point-of-entry (POE) 8 3.3.2 Conductive POE . 8 3.3.3 Continuous wave (CW) immersion . 8 3.3.4 Corrective maintenance . 8 3.3.5 Electromagnetic barrier . 8 3.3.6 Electromagnetic closure . 8 3.3.7 Electromagnetic stress 8 3.3.8 Facility HEMP shield . 8 3.3.9 HEMP acceptance test 9 3.3.10 HEMP ha
16、rdness . 9 3.3.11 HEMP hardness assurance 9 3.3.12 HEMP hardness configuration baseline . 9 3.3.13 HEMP hardness critical item (HCI) 9 3.3.14 HEMP hardness critical process (HCP) . 9 3.3.15 HEMP hardness maintenance (HM) 9 3.3.16 HEMP hardness maintenance and hardness surveillance (HM/HS) . 9 3.1.17
17、 HEMP protection subsystem 10 3.3.18 HEMP hardness surveillance (HS). . 10 3.3.19 HEMP hardness surveillance/reverification testing 10 3.3.20 Low-risk HEMP hardening . 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N T
18、SPARAGRAPH PAGEv3.3.21 Main barrier electrical POE protective device . 10 3.3.22 Mission-critical systems (MCS) 10 3.3.23 Norton equivalent circuit or Norton source 10 3.3.24 Penetrating conductor 10 3.3.25 Penetration entry area 11 3.3.26 Performance degradation . 11 3.3.27 Point-of-entry (POE) 11
19、3.3.28 POE protective device or POE treatment 11 3.3.29 Preventive maintenance . 11 3.3.30 Primary special electrical POE protective device 11 3.3.31 Protected volume 11 3.3.32 Pulsed current injection (PCI) 11 3.3.33 Residual internal stress 11 3.3.34 Retrofit HEMP hardening . 12 3.3.35 Secondary s
20、pecial electrical POE protective device 12 3.3.36 Shielded enclosure leak detection system (SELDS) 12 3.3.37 Special protective measures 12 3.3.38 Special protective volume . 12 3.3.39 Verification testing . 12 3.3.40 Vulnerability threshold (of an equipment) . 12 3.3.41 Waveguide below cutoff (WBC)
21、 12 3.3.42 Waveguide-below-cutoff array 13 4. GENERAL REQUIREMENTS 14 4.1 General . 14 4.1.1 HEMP protection overview 14 4.1.2 Integration with related requirements . 14 4.2 Hardness program overview 14 4.3 HEMP hardening design 15 4.3.1 Facility shield . 15 4.3.2 POEs . 15 4.3.3 MCS . 15 4.3.3.1 MC
22、S within the electromagnetic barrier. 15 4.3.3.2 MCS outside the electromagnetic barrier 15 4.3.3.3 HEMP-hardened electrical power 16 4.3.4 Special protective measures 16 4.4 HEMP testing . 16 4.4.1 Quality assurance program . 16 4.4.2 Acceptance testing . 16 4.4.3 Verification testing . 17 Provided
23、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N T SPARAGRAPH PAGEvi4.5 HM/HS . 17 4.5.1 HM/HS program development 17 4.5.2 HM/HS program implementation 17 5. DETAILED REQUIREMENTS . 18 5.1 HEMP protection subsystem topology 18 5.
24、1.1 Electromagnetic barrier topology 18 5.1.2 Penetration entry area . 18 5.2 Facility grounding . 18 5.2.1 Equipotential ground plane . 18 5.2.2 Grounding to the facility HEMP shield . 18 5.3 Facility HEMP shield . 19 5.3.1 Shielding effectiveness 19 5.3.2 Shield configuration 19 5.3.3 Shield monit
25、oring capability . 19 5.3.4 Shield construction quality assurance . 19 5.3.5 Shield acceptance testing 19 5.3.5.1 Facility shield modifications . 19 5.4 Architectural POEs 19 5.4.1 HEMP protection for architectural POEs 19 5.4.2 Personnel entryways and exits 19 5.4.2.1 Waveguide entryway dimensions
26、22 5.4.2.2 Entryway shield . 22 5.4.2.3 Entryway shielded doors 22 5.4.2.4 Entryway interlocks and alarms . 22 5.4.3 Equipment accesses 22 5.4.4 Acceptance testing for architectural POE protective devices 22 5.5 Mechanical POEs 23 5.5.1 HEMP protection for mechanical POEs . 23 5.5.2 Piping POEs 23 5
27、.5.3 Ventilation POEs 23 5.5.4 Acceptance testing for mechanical POE protective devices 23 5.6 Structural POEs . 23 5.6.1 HEMP protection for structural POEs 23 5.6.2 Acceptance testing for structural POE protective treatments 25 5.7 Electrical POEs . 25 5.7.1 HEMP protection for electrical POEs . 2
28、5 5.7.2 Commercial electric power feeder POEs 26 5.7.2.1 Commercial power main barrier POE protective device requirements . . 26 5.7.3 Other electrical power feeder POEs 31 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N
29、T SPARAGRAPH PAGEvii5.7.3.1 Electrical power main barrier POE protective device requirementsfor unrestricted lines 31 5.7.3.2 Electrical power main barrier POE protective device requirements for restricted lines 32 5.7.4 Audio and data line POEs . 32 5.7.4.1 Standard audio and data lines . 32 5.7.4.
30、2 Nonstandard audio and data lines 32 5.7.4.2.1 Nonstandard audio and data main barrier POE protective device requirements 33 5.7.5 Electrical control and signal line POEs. . 33 5.7.5.1 Main barrier POE protective device requirements for unrestricted control and signal lines operating at voltages le
31、ss than 90 V . . 33 5.7.5.2 Main barrier POE protective device requirements for unrestrictedcontrol and signal lines operating at voltages greater than 90 V . . . 33 5.7.5.3 Main barrier POE protective device requirements for restrictedcontrol and signal lines 34 5.7.6 RF communications antenna line
32、 POEs. . 34 5.7.6.1 Antenna line POE protective device requirements. . 34 5.7.6.1.1 Signal conductor injection for receive-only antennas . 34 5.7.6.1.2 Signal conductor injection for transmit antennas 35 5.7.6.1.3 Shield injection . 35 5.7.7 Conduit shielding 35 5.7.7.1 HEMP protection using conduit
33、 shielding . 35 5.7.7.2 Conduit requirements . 36 5.7.8 Acceptance testing of main barrier electrical POE protective devices . . . 37 5.8 Special protective measures 37 5.8.1 MCS outside the main electromagnetic barrier 37 5.8.1.1 RF communications antennas outside the main electromagnetic barrier .
34、 37 5.8.2 MCS inside the main electromagnetic barrier . 38 5.8.3 Special protective volumes . 38 5.8.3.1 Special protective volumes for piping POEs 38 5.8.3.1.1 Special waveguide requirements . 38 5.8.3.1.2 Special protective barriers for piping POEs 38 5.8.3.2 Special protective volumes for electri
35、cal POEs . 38 5.8.3.2.1 Special protective barriers for electrical POEs 40 5.8.3.2.2 Primary special electrical POE protective device requirements 40 5.8.3.2.3 Secondary special electrical POE protective device requirements 40 5.8.3.2.4 MCS in a special protective volume 40 5.8.4 Acceptance testing
36、for special protective measures . 40 5.8.4.1 Special protective measures for MCS . 40 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N T SPARAGRAPH PAGEviii5.8.4.2 Special protective barriers . 41 5.9 Reliability and maint
37、ainability 41 5.10 Safety and human engineering 41 5.11 Testability . 41 5.12 Corrosion control 41 5.13 Configuration management 42 5.14 Verification testing . 42 5.14.1 CW immersion testing 42 5.14.2 PCI verification testing 42 5.14.3 Verification for special protective measures 43 5.14.3.1 Verific
38、ation of special protective measures for MCS . 43 5.14.3.2 Verification of special protective barriers 43 5.15 HM/HS program requirements 44 5.15.1 HS/reverification test procedures 44 5.15.2 Maintenance and inspection procedures . 44 5.15.3 Supply support requirements . 44 5.15.4 Training requireme
39、nts 44 5.15.5 Technical data 44 5.15.6 Delivery . 45 5.15.7 Implementation . 45 6. NOTES . 46 6.1 Intended use 46 6.2 Issues of DoDISS 46 6.3 Subject term (key word) listing . 46 6.4 Changes from previous issue . 46 FIGURE1 Minimum HEMP shielding effectiveness requirements (measured IAWprocedures of
40、 Appendix A) 20 2 Typical waveguide and vestibule entryways 21 3 Typical waveguide-below-cutoff piping POE protective devices 24 4 Typical waveguide-below-cutoff array ventilation POE protective device 25 5 Typical electrical POE protective device 27 6 Typical special protective volumes . 39 Provide
41、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-125-1C O N T E N T SixTABLEI Injected pulse characteristics and residual internal stress limits for classes of electrical POEs 28 II Maximum conduit length as a function of conduitoutside diameter
42、(OD) 36 APPENDIXA SHIELDING EFFECTIVENESS (SE) TEST PROCEDURES . 48 B PULSED CURRENT INJECTION (PCI) TEST PROCEDURES . 60 C CONTINUOUS WAVE (CW) IMMERSION TEST PROCEDURES . . 82 CONCLUDING MATERIAL 97 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
43、IL-STD-188-125-1This part of the standard addresses fixed facilities only. A fixed ground-based facility, for purposes of this1standard, consists of equipment in a permanent building or shelter that provides survivable C I capabilities at a fixed4geographical location. HEMP hardening measures for tr
44、ansportable systems are contained in MIL-STD-188-125-2.11. SCOPE1.1 Purpose. This standard establishes minimum requirements and design objectivesfor high-altitude electromagnetic pulse (HEMP) hardening of fixed ground-based facilities1that perform critical, time-urgent command, control, communicatio
45、ns, computer, andintelligence (C I) missions. Facilities required to fully comply with the provisions of the4standard will be designated by the Joint Chiefs of Staff, a Military Department Headquarters,or a Major Command.1.2 Scope. This standard prescribes minimum performance requirements for low-ri
46、skprotection from mission-aborting damage or upset due to HEMP threat environments definedin MIL-STD-2169. This standard also addresses minimum testing requirements fordemonstrating that prescribed performance has been achieved and for verifying that theinstalled protection subsystem provides the op
47、erationally required hardness for the completedfacility. If the prescribed testing results in any hardware damage or functional upsets, theoperational authority for the facility will make the determination whether the observed event ismission aborting.1.3 Applications. This standard defines the desi
48、gn and testing criteria for specificallydesignated fixed ground-based facilities in HEMP-hardened, critical, time-urgent C I4networks. Such nodes include subscriber terminals and data processing centers, transmittingand receiving communications stations, and relay facilities. The standard applies to
49、 both newconstruction and retrofit of existing facilities. Although only local portions of facilityinterconnects are addressed, it is assumed that survivable long-haul communications paths,fiber optic links, or other hardened interconnects between facilities will be provided asrequired for mission accomplishment. Use of the standard for HEMP protection of othergr
