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@ MILITARY SPECIFICATION MIL-E-7080B 6 JUNE 1962 SUPERSEDING ,wIL-F.-7O8OA ssEI’WEMBER19S6 ELECTRICEQUIPMENT,AIRCR.AFT, SELECTIONAND INSTALLATIONOF ?’t#i* .prrijfratim ha been appmtwd .5v tha Dcpartnnd o/ Defaaaa d b- dntmy f.. w., b~ the I)rprzrtm.-nti of the A mw, the N.uv. end the A~ Fwce. 1. Scorfl 1.1This specificationcovers the requke- rnents for the installation nnd selection of electric equipment in piloted oircmft. 1.2 Electric equipment studl be construed to include electric power genemtion Md utili- @ sntion equipment. and control nndpmtectivc devices. 2. APPLICABLE DOCUMENTS 21 The following documents, of the issue in effect on date of invitation for bids. form a.@ of this specification to the extent :{pe- died herein: SPECIFICATIONS FEOERAL L-P-406 —Plastics, Organic: GenemlSPecifkntinns. Test }fcthods. MILITARY MILR-26 —Resistom, Fixwl, Wire- wound (Power ~IE). MIL-S-61 —Shunls, Instrument Externnl, 60.Millivolt (Lightweight TYP@. NIL-S-3950 — Switches, Toggle. MIL-C-5026 —Cutout Reloy. Aircraft Genemtor. MIL-B-S087 — Bonding: Electrhl (for Aircrnft). Ml L-W-5033 — \Viring, Airccaft, I* stollntion of. MI L-E-52W — Encironmentnl T- ing. Aeronautical and Associated F~uipment, GenemlSpechkotion for. M IL-F-X+72 — Fuse, Enclmod IA?& Aircraft, 400 Cycle AC. MIL-L-5667 — Lighting Equilrmed, Aircmft lrrstrunrent Pmet,Cenerd Sp2cificnti0n for Installation of. MIL-C-5SO!I — Circuit B- TrtP Free, Airmaft. Genersl S@fkation for. MIL-E-6051 — Electrical - Efeckmlc Systems (%mpntibility and IrIterfer- ence Cantrol Requirements for Aerw nnuticol Weapon Systems, Assocfatxd Subsystems nnd Aircmft. MIL-CX3099 — Genemtnrs and Resu- Intors, Air-CkAd, A-C, Aircrsft Gen- eral Specification for. M1L-R-6106 — Relnys, Electric, Air- cmft, General Specific.nttOn for. MIL-B-6146 — Batteries; Storage Shielded, General SPeciflcatlon for. MIL-G 6162 — Cenemtora, 80-Volt, Direct Current, Aircraft EnFine Driven, Geneml Specification for. Downloaded from http://www.everyspec.com

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Page 1: ELECTRICEQUIPMENT,AIRCR.AFT, SELECTIONAND …

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MILITARY SPECIFICATION

MIL-E-7080B6JUNE 1962

SUPERSEDING,wIL-F.-7O8OAs sEI’WEMBER19S6

ELECTRICEQUIPMENT,AIRCR.AFT,SELECTIONAND INSTALLATIONOF

?’t#i*.prrijfratimhabeen appmtwd .5v tha Dcpartnnd o/ Defaaaa d b -dntmy f.. w., b~ the I)rprzrtm.-nti of the A mw, the N.uv. end the A~ Fwce.

1.Scorfl

1.1 This specificationcovers the requke-

rnents for the installation nnd selection ofelectric equipment in piloted oircmft.

1.2 Electric equipment studl be construedto include electric power genemtion Md utili-

@

sntion equipment. and controlnndpmtectivcdevices.

2. APPLICABLE DOCUMENTS

21 The following documents, of the issuein effect on date of invitation for bids. forma.@ of this specification to the extent :{pe-died herein:

SPECIFICATIONS

FEOERAL

L-P-406 —Plastics, Organic:GenemlSPecifkntinns. Test }fcthods.

MILITARY

MILR-26 —Resistom, Fixwl, Wire-wound (Power ~IE).

MIL-S-61 —Shunls, InstrumentExternnl, 60.Millivolt (Lightweight

TYP@.

NIL-S-3950 — Switches, Toggle.

MIL-C-5026 —Cutout Reloy. AircraftGenemtor.

MIL-B-S087 — Bonding: Electrhl(for Aircrnft).

Ml L-W-5033 — \Viring, Airccaft, I*stollntion of.

MI L-E-52W — Encironmentnl T-ing. Aeronautical and AssociatedF~uipment,GenemlSpechkotionfor.

MIL-F-X+72 — Fuse, Enclmod IA?&Aircraft, 400 Cycle AC.

MIL-L-5667 — Lighting Equilrmed,Aircmft lrrstrunrent Pmet,CenerdSp2cificnti0n for Installation of.

MIL-C-5SO!I — Circuit B- TrtPFree, Airmaft. Genersl S@fkationfor.

MIL-E-6051 — Electrical - EfeckmlcSystems (%mpntibility and IrIterfer-ence Cantrol Requirements for Aerwnnuticol Weapon Systems, AssocfatxdSubsystems nnd Aircmft.

MIL-CX3099 — Genemtnrs and Resu-Intors, Air-CkAd, A-C, Aircrsft Gen-eral Specification for.

M1L-R-6106 — Relnys, Electric, Air-cmft, General Specific.nttOn for.

MIL-B-6146 — Batteries; StorageShielded, General SPeciflcatlon for.

MIL-G 6162 — Cenemtora, 80-Volt,Direct Current, Aircraft EnFineDriven, Geneml Specification for.

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MIL-I-6181 — Interference ControlRequirements, Aircraft Equipment.

MIL-L-6503 —L igh t in g Equipment,Aircraft, General Specification for In-stallation of.

MILL-6723 — Lights, Aircraft, Gen-eral Specification for,

bflL-L-6730 —Li gh t i n g Equipment,%terior, Installation nf Aircraft

“ (G&era] Specification).

Mff.#-6743 — Switches; Push But-ton and Limit.

MU--S-6744 —Switch Aasemblias andActuators, Push Button and Limit.

MIL-S-6746 —Switches, Rotary,Shielded, Aircraft Ignition.

MIL-R-6749 — Rheostats; AircraftPower.

MIL-A-6752 —Ammeters, Voltmeters,and Loadmetere; Direct Current.

MIL-V-6753 — Voltmeters; 0-150Volt, 330 to 1200 Cycles, AlternatingCurrent.

bfIL-&6307 —Switch, Rotary,Sekctor,GeneralSpecification.

BIILR-6809 —Regulator, Vnltage, 30-Volt, Direct Current Generator, Gen-eral Specification for.

MIL-I-7032 — Inverter, Aircraft,General Specification for.

ML-C-7115 — Converter, Aircraft,Geueral S*ificatiOn “for.

MfL-F-7179 —Finishes and Coatings;General Specification for Protection ofAircraft and Aircraft Parts.

MIL-C-7703 — Guard, Switch.

MIL-C-7762 —Compasses, Installationof.

MIL-M-7969 — Motors, AlternatingCurrent, 400-Cycle, 115/200 Volt SYs-tam, Aircraft, Class A and B, GeneralSpecification for.

MIPM-8G09 —hlntors, Direct-Cument, ●28-Volt System, Aircraft, Class A andB, General Specification fnr.

MfL-S-3834 — Switches, Tnggle, Pnsi-tive Break, Aircraft, General S~cifi-cation for.

MILF-15160 — Fuses; Instrument,Power, and Telephnne.

MIL-F-15733 — Filters, Radio Inter-ference.

..- -

MIL~18276 — Lighting, Aircraft In-terior; Installation of.

STANDARDS

MILITARY

MIL-STD-143 —Specifications andStandards, Order of Precedence forthe Sel*lOn of.

MIL+TD-203 — Cnckpit Controls; Lo-cation and Actuatinn of, for FixedWing Aircraft. ●

MIL-STD-250 — Cockpit cnntmls; Lc-cation and Actuatinn of, for Helicop-ters.

MS 3106 — Connector, Plug, Elec-tric, Straight.

MS 3107 — Connector, Plug, Elec-tric, Quick Disconnect.

MS 25018 — Receptacl~et Start-ing Power.

: MS 26043 .— Cap — Electrical Con-. . .. . ... ... . .... ... . ..:.,,.. .nector Receptacle, Dust.

MS 33539 . — Installation Clenrencc— Type X11 Drive, (Generator-WideSpeed Range).

MS 33540 —Safety Wiring, GeneralPractices for.

MS 33590 — Circuit Breaker Instal-lation.

Ms 33630 — Switch, Toggle, Instal.lation of. ●

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AIR FORCE-h’AVYAERONAUTICAL

AN 2552 — Receptacle — ExternnlPower, 2E Volt DC.

AN 3114 — Receptacle, ExternalPower 115/200 Volts, 3 Phase.

“ ... .ANS117 “ ‘-”” —Rec&ptncl&Fuel NOZ-zle Grounding.

AN 3156 — Clornp-Bnttery Hold-Down.

AND 1030.5 — Instnltntion Clearance_Typc XII and Type XVII Drive(Genemtor-Power Tnke-0t7).

AND 10343 — Instnltntion ClesmnceType XVI Drive.

AND 10439 — Receptacle Installation— Fuel Nozzle Grounding.

AND 1044 I

DRAWINGS

U. S. AIR FORCE

53AIW32

– Battery Instollotion.

— Connector- RecciBtoclePower Outlet Electric Test Equip.ment.

(Copies of mccifimtions, standards.drnwings,andpublicationsrequiredby cantmcl.xain connectionwith spcriflrpmcurrment functiomdwuld ta o~taincdfrom theprocuringnctivityor an dlrertedbytheCan;rrICt:nRoffker.)

3. REQUIREMENTS

3.1 Geneml requirements.

3.1.1 DefaiI speeif%zfian. In cnw of conflictbetween the requirements of this specit3ca-tion and the type or detail specification for

. ~. ~$ulnr ai~mft or oircroft pnr& thetype or rletnil specification shall prevail.

3.1.2 Demktiorw. Deviations from ti~ spe-cification desired by the cont~~r (gubsti.tution of equipment, material, or instdla.tion) shall be speciflcntly brought to theattention of the procuring activity by letterconcurrent with o; prior to forwarding thedesign data for npprovol.

MIbE-7080B

3.1.2.1 Dcm”gn objective. Itmns ofthissp&ciftcdion which nre identified os “’design objcctivee,” ore intended es guides, and there-fore, procuring activity approvot is not *quired for deviations frwm them. However,if required by the Government inspector, thecontractor shnfl furrdsh ecidence that dueconsi(lemtion hoc been given to attain theseobjectives.

3.1.3 f%ltMd0ti8 speciflmtion. Materinland equipment conforming to controctofsspecifications may k used, provided the con-tractor’s specification is approved by the prmcuring activity and provided no militoryspecirkationexists.The mntmctor shallpro-vide substantiating test datn and, when m-quircd by the procuring activity, shall p-tide eomph?s for test. The use of contractor’sspecifications shall not constitute wniver ofGovernment inspection. Cantractofs speci-fications shall follow the format for military

specifications.When a detail or generalmilitan specification exists for the ctass ofmnteri~ &uired, the contractor’s specitlcn-tion shall reference the existing militnryspecification and set forth only the needednew requirements and deviations.

3.1.4 lVorknmaship All dctoits of w“orkmna-mnnship ehall be in nccordnnce with high-gmde nircmft electric equipment ond arres-sory instaltotion practices.

3.1.5 Coremnmnt.fumishcd aimmjt equr”pmcnt. Unless otherwise authorized by the pr-ocuring octivity, materin! and equipment fur-nished by the Government shnU be installedwithout modficaf!on.

3.1.6 flfodif?mlion. The mntrsrtor eholl nototter, rework, or modify equipment built toGovernment specifications, unless authorizedby the procuring activity, and such mcdiflco-tion ehnll be subject to Government inspec-tion.

3.1.7 Mateviais.

3.1.7.1 Jfetak. Metals u%d in the installa-tion of electric equipment in eircmft shstl

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beof thecorrosion-resistanttypeorshallbesuitabilyprotectedto resistcorrosionandefectralyticactionduringnormalservicelife.Finishand coatingshallbe inaccordancewithSpecificationhlIL-F-7179.

3.1.7.1.1LX.ssimi&rm.aizk.Dissimilarmetalsshallnotbeusedinintimatecontactunlessawtablyprotectedagainstelectrolytic

1-corrosion. When it is necessary thatany~OmblnatiOn of such metals be ~sembled,an interposing compatible material shall beused. Dissimilar metalg fuw defined in tibIe I.

3.1.7.2 Norwrvefm%.Nonmetal.q used, includ-ing plsatics, fabrics, and protective finishes,shall be moisture. and flnme-resistant to themaximum extent practicable, commensuratewith other aircraft design requirements,shall not sup~rt fungus growth, shall notsupport combustion nor give off noxious

gases in harmful quantities,and shall notbe adversely affected by weathering, aircraftfluids, tenrperatums. nd ~bient conditionsencountered during &erstion of the. aircraft.

3.1.7.2.1 Pfu.wic mnterial. Plastic. insulatingmateriafs used shaI1 not form current-con-ducting tracka when subjected to area suchas those caused by interrupting heavy short-eircuit currents. The material shall with-stand tbe “Arc Resistance” test of Method4011 of Specification L-P-406.

.3.1.7.3 SeZectiOn of m2tenkt.9.Speciti&iOnsand standards for all materials, parts, andGovernment certification and approval ofpruca%es and equipment, which are not spe-cifically designated herein and which, ,a~. ...’.... . . . . . .. . .. . . ..

“‘“im&ssary for the execution of this speeifim.tion, shall be selected in accordance witkStandard MIL-STD-143, except as speeifledin 3.1.’7.3.1.

3.i.7.3.l .%titi” parts. Standard park(MS,AN, or JAN) shall be used whereverthey are suitable for the purpose, and ehallhe identified on the dmwing by their part

numbers. Commercial utillity parts, such asScrew,s, bolts, nuts, and cotter pinS,may ~

used, provided they pessess suitable proper-ties and are re~laceable by the standard parta(MS, AN, or JAN) without alteration, and

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provided the corresponding standard partrtombers are referenced in the parts list and,if practicable, on the contmctor’a drawings.In the event there is no suitable correspond.ing standard part in effect on date of invitat-ion for bids, commercial parts may be usedprovided they conform to all requirements ofthis specification.

3.1.~ lr@lJf@n. . . . . . . . .. . . . . ... .

3.1.8,1 12eliabiJitU. The installation of theelectric equipment, including accessories,shall be reliable and compatible with asso-ciated equipment and material. The equip-ment shall be so selected as to be suitablefor the environment in which it must per-form under the operating requirements ofthe system of which it is a part.

3.1.8.2 Fire hu.rwd. Electric equipment in-stalled in an environment having explosivevapors presint shall conform to the requin+menta of the explnsion-prmf (aeronautical)testa of Specification MILE-5272. ●

TABLS 1. GmtL@ .f nwtdd

c-n.. 1

(Mostanodic)Magmesiun

alloys

Gro”, 11

Aluminum

AluminumalloysZincCadmium

——GIVWm

ZincCadmiumsteelLendTin

C.VIIDIv

CopperanditsalloysNickelanditsalloysChromiumStainlessst.eslGoldSilverTitaniumRutheiiuti(Mostcathodic)

i Whe,. ,,{., . . . . m made to . mea, ,. m ..rtkmr ~m.~.

III. ref.re”ce.,.14- tothemetal0.lb,.Urf.c, of theD-chat la, *{.c m.. ni zinc mst[nmn, . . well m zinc ckctrmla~

zinc hat dir,. or =!.. metal *..9..

c..t..tMl.=. . -k ofn.,... sm..ma .Imthez.r.emMrofthe“me ,row shall& mn.ld.,dm ,[mlk.~tic,bet-ema memberofme s,... ..d . member of amp

c.th.rmm...hmllk co..id.md ss dimimilar. ?.1.. ..d culrnhun

mm cmm.tible With Lmlh mm... 11 mud 111.Unla. smclllc.lly ap. r.av.d by tie .rc.mring mct{vitr. d

..li.tcd nwtah shall & cmm!dcrd all.. hnil.r with respect * CA

other .nd with m.ect to ..y of the m.k+.ls listed .L.,ve.

DIRere.t nwtal. in .o.mt, ●ve. the.u.b .im!].r. .Iull b

em.1.wd in umnbllca in .uch m.n.cr tit the .IMllm put k

=4wdlc. or .rol-ted, ..d the l.ruer art b and., c., eamcdd.

if m., cormni.n take .Im..

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a 3AM Grounding.

3.1.8.3.1 Sktic gmrmlf.when required, glV-vision ehd be mode for the dischnrge ofsccumufuted chnrges of stntic electricity byautometirally bringing the nirernft to groundpetentinl on landing, nod thus preventingshock to pS=OMd ond dnmnge @ the nir-craft by controlling the point of diechorge.The stntic ground device shntl be so instnth?das to be bonded to the iiirm-nft structure nndEM previde electric contnct with the

ground. The device ehntt be ndjustabk or re-plocenble to cempensote for normnl weor,ond shofl not protrude from the nircmftduring flight, except on Innding nnd tokeoff,if mtmct.dde lmding genr is employed.

3.1.8.3.2 Fuel nezzk grounding recqdacka.Fuel nozsle grounding receptacles shntl bein eccordnnce with Standnrd AN 9117 nndshell be instrdled in eccordnnce with Stand-nrd AND 10439.

3.1.8.3.3 Intemetlv grounded cquiprnent.

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The mounting attachment of internnflygrounded equipment shotl be Cnpable of

-n8 fun-bed current, with n voltngedrop low enough to prevent stmy currente

“ to ground by other pnths being lnrge enoughb demnge bencings, etc.

3.1.8.3.4 Sun”tchgenr OJSC.nProvision shrillbe mnde to protect ngninst on intcmrd fnultto on electrical equipment metul cnse fmmdisrupting the power system. Switchgenr(such es reloye, circuit breakers, nndswitches) having metal roses for mounting,ond which ore in power feeders to buseeg orin unprotected circuits, shntl be cm instolledthat the cnse is eledricrdly isolnted fromground, except for n suitable emdl gnge“~iiin~-r “iviie which shritl be provided betweenthe awe nod ground to provide n current return path for internnlty grounded devicesnnd for bonding in nccordnnce with Speci-tlcntion DflL-B-5087.

3.1.8.4 Bondino. Bondirw of the eouinmentshrill be in nc;ordonce “tith Sp&fl&ton

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MU-B-60S7.

MIL-E-70sOB

3.1.8.5 Rodio inkrfercnce. Electricequfpmootshntlbeinetelkdina mmmer toinsureconformance of the eimmft with Speciclc8-tionMIL-E-6051. Electrical equipment to beinstalled in the oircmft shol) be equipped forrodio interference reduction in eccordnncewith Specitlcntion MILI-6181.

.. -3.1.8.5.1 FiUma hdiO noise filtem shnlt be

inetutled only when necessnry to insure com-pliance with Specification hflL-E-6051.

3.1.S.5.1.1 we fitter. Fitters eholl be of nointernolty grounded type conforming to Spe-cification MI L-F-15733. Copxitor-type til-ters shell be used in nll installations, exceptthose speciol crises where it is demonetretedthnt this type of fttter is not edequote.

3.1.8.5.1.2 Filter insfoIktiorL Filtem shaltbe m inetnlfed that they sre lecnted es nearto the interference source ae prncticatde end

CIMYbe mounted on the interference ~umeupon nppmvnt of the procuring nctivfty. Theconnecting wire between the flttered line endthe filter shell be ne short os pmcticnble endin no cnse exceed 4 inches.

3.1.8.6 Compess devintion Electric quipment shotl be so instnfkd os not to auseCOMPMOIdeviations in excess of those stlowedin Specification MILG7762.

3.L8.7 dloun~ and lomtia Electricequipment shnlt be mounted, instnUe& nndso lecnted os not to be subject to conditionsexceeding the knits specifkxt in the applic-ob]e equipment speciflcntion ond to conformto the following requfremcn~

3.1.8.7.1 Wmanee. Ckrence shofl & pr-ovided in nccerdnnce with the instntletioncleemnce drnwing for the equfpmenL Where -no drn~”ng exists, the spoce provided shellbe no less thnn the dimensions ebown on themeximum envelope dmwing for the equipmen~ plus udequnte odditionol elearonce toOI1OWfor mnintenence and proper ventilation.

3.1.8.7.1.1 Shwbnmmf & unik. Tbe env~lope determined by the mnximmn movement

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of shuck-mounted units shallclearsurround-1 ing structure and the maximum envelope of

adjacent shuck-mountedequipmentby atleast}4inch.Shcck-mountedunitsshallnotbemountedorinstalled in any manner otherthan that for which the shock mounts aredesigned. Cables shafl be of sufficient lengthto allow operation of shock mounts. The cuol-ing means or any other attachments shallnot interfere with satisfactory shock-mount

:.. . . .operation.

3.1.8.7.2 Environmental pmteclion con-sideration. Electricequipmentshallbe soinstalledas to he protectedfrom thnen-vironmentalconditionswhich will exist inthe operation of the aircmft, such as moist-ure, humidity, vibration, shock, sand anddust, altitude, temperature, leakage of va-pors and liquids, and asIy expected combina-tion of ambient conditions. Considerationshall be given the aircraft temperature en-vironment for each of the conditions speci-fied in 4.5 when electric equipment is select-ed. Forced air cooling shall be providedwhere necessary.

3.1 .S.7.3 Ph.ysicnl protection consisfc)al ion.Electric equipment shall be so installed asto be protected from physical damage, suchas that caused by sbrasion, crew movements,loading snd shifting of cargo, ejection ofshell cases and clips, excessive mm air pres-sures, loading of armament, and mainten-ance of equipment. Equipment shall be in-stalled with consideration to protection ofexposed terminals by orientation or insul-... . .. . . . .a~ing” rnaie”rial coves-s. Equipment shall notbe located below drip pnints and tube fittingscarrying fluids.

3.1.8.7.4Mainkwmcc. Provisionshallbemade for ease of maintenance, including in-stallation, removal, adjustment, inspection,terminal accessibility, and plug removal.Rotating equipment shall be installed in amanner to facilitate periodic inspection.

3.1.S.7.4.1 Quick-disconnect mounting.Quick attachdetach disconnects may be used

6

:,;, .0to facilitate maintenance subject to prucur- -ing activity approval.

3.1.8.7.5 Operation. Electric equipmentshall be instafled which h= heen selectsdwith rezard to the exuected cvclic omratisw-c-onditions, electric load, mechanical loads,and other characteristics essential to give therequired operational Ef.-. The minimumacceptable service life for aircraft electric‘equipment- MlaI1- lit 1,000 “ftight hous%, andthe contractor shall advise the procuring ac-tivity of any equipment which will not con-form to this requirement and of the recom-mended replacement m. overhaul time. Theterm “flight hours” does not include groundoperating time.

3.1.S.7.6.Srz~c/.~ing. Electricmiuipment shallbe properly secured by means of safety wire,cotter pins, locknuts, or other means ap-proved by the prncuring activity. Adhesivetapes (such as friction, medical, rubber, orsimilar types) shall not be used. Safetywiring practice shall be in accordance withStandard MS33540.

3.1. S.7.7 Muunlin.g hardwrwc. Mach ine screwsor bolts of suitable Iengtk and diame~er shallbe used for mounting electric equi l,ment,Whenever tile undersurface of’ tl]e mountingis inaccessible, nut plates shall be used. Self-tapping screws shall not be used for mounL-

ing electric equipment or for making electricconnections.

3.1.S.7.8 Ilol,tiing equipment. The mountingof rotating equipment shall. be sufRciently.rigid to prevenl damage owing to mntionwith respect to its mounting. Rotating equip-ment which is mechanically Iinked to operatewith other devices shall be so mounted as toprevent damage to the mating equipment,coupling, or associated device.

3.1. S.7.9 l’ukwrabilit.~. Cwtsidm’atiou shallbe given tn the shielding offered by majorpieces ofstructure or eqtliprnellt. In multipleinstallations, equipment shall be separated toprevent a single element of combat damagefrom disabling all similar components.

...

●✌

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3.2 Detail requirement.% The following de-til requirements apply to spectttc items ofequipment. In case of contlict with the gen-eml requirements, the detail requirementsshall appty.

3.2.1 Wiring. All wiring shall be installed inaccordance with Specification MIL-W-508S.

3.2.2 RPLIuMOre. Voltage regulatom forgenemtom shnIl be in accordance with S~i-frcntion MIL-R-6S09 for direct current (de)and Specification MU.-C-W9!I for alternatingcurrent (nc].

3.22.1 i%.mtirm of rc~htom Regulatmashall be so mounted os to be accessible formaintenance and adjustment while the en-gine is running. Regulator shall be so ven-tilated thnt the ambient tempemture aroundthe regulator does not exceed the allowabletempemture altitude mnge ofregldntor0p-emtkw. In bomber- and cargwtype nircmft,regulatom shaIl be accessible in flight.

3.2.2.2 Mountirw. Carbon-pile regulatomshall be so mounted that they are not sub-jected to vibrotinn exceeding thnt defined inthe detnil equipment specification and so thntthe longitudinal axis of the carbon stncke arein n horizontal pbmre. The longitudinal axisof the carbon pile shntl atso be in the dhwc-tion of minimum nccelemtion in the horizon-tal plane.

3.22.3 Rc@&tiorI point. The Vdtige shall

be regulated at a point ns near as pmcticnbleto the main bus.

3.23 f%nemtor mntml jxmcls. Genemtorcontrol psnels shrill be installed as required

-by the procuring activity. .

3.2.3.1 Afounfing. Generntor control psnelsshall be mounted in an environment and insuch manner that the speeiftcnt.ion limitationsare not exceeded. l%ey shafl be accessiblefor mnintennnce and adjustment while theaircmft is on the ground and the engines arerunning.

MIL-&70BOB

3.2.4 Batt&ies. Batteries in%alkd io nir-craft stud] conform to S~itlcntion AflLB-6146 or se approved by the pmcnringnctivit y.

3.2.4.1 Battery instOUdone. Batteries Sbaube inetahd in accordance with Sbdord -AND10441 (sump jar installation ehntl notbe provided in rmvnl oircmft) and with IIold-down clomps confomring to StMdsrd AN3166. Batteries shsfl be substantially hori-zonbd while the oiremft is in level tligbt.Batteries designed for high-rote dischmge,such ne those used on jet nircmft, shalf beinstalled in n manner approved by the pr-ocuring activity.

3.24.1.1 Dis-ct. A quickdkcmmect de-vice shall be provided at the battery t.enni-nak for d%conneeting the battery from theelectrical system, to fncilitote maintenance.

3.2.4.1.2 Batw location ~d.~d ~&tenes shot] be so located and instatkd thatthe following features nre effected:

(a) Electrolyte level in individual cetlsmsy be visunlIy inspected withoutremoving the battery.

(b) Speific gmvity of each cell may betested with a standard hycfmrwter without completely removingthe battery.

(c) It is readily accessible for servicingfrom nuteide without necessibbing complete removal of My pert

of the aimrnft.

3.2.4.1.3 Battcrft ckctmlvtc, protcctk TO

prevent corrosionof the afrcmft by ktteryelectrolyte, the following.. shall be. acemrr— .plished:

(n) The battery shall be instntkxj in anelectrolyt*re9Lstant container, orsuitable prot.sction against bst-tery electrolyte shall be appfkdin mrm-dsnce with S~MIL-F-7179 to d SUrfLICCSwith-

. in 12 inches of the battery and b

7

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GE-7080B

surfaces furtherremovedwhicharesubjecttoelectrolytespillage,spray,orfuma9.

(b) Equipmentahaflnotbelocatedwhereitmay beomtactedbyelectrolytespiltsge,spray,orfumes.

(c)AS a designobjective,thebatteryshallbe installed in a compart-ment which has provisions for-. -mtin~ainin~ the bsttery at approximately60° F. (15.6° C.) dur.ing ground and tlight operations.

32.4.1.4 Venting provisions. The inletandoutfethosesshallbesolocatedastomsin-tain,inflight.u pressuredmp of not lessthan 0.1andnotmorethan1.5pounds persquare inch (psi) between the battery venttubes to permittheflowoffreshsirintothebatterycasetoexhaustfumes.The infet tubeshrdf be brought out above the level of thebattery, and the outlet tube shall be broughtout below the level of the battery.

3.2.4.1.5 Prwsu,ization. Preasurir.aticm shallbs provided, when required,to prevent loss

of electrolyteon account of boiling.A mini-

mum pressure value shsfl be determined andthis pressureappliedby allowingairtoflowthroogbthebattery.ThisflowofairshallDroducenotleesthan0.1-andnotmorethanl.&peipressure drop acro.w the battery venttubes.

3.2.5 Con ucrters. Converters shall be in ac-mrdance with Specification MIfX-7115 and

3.2.8 Generators. Generators ehall be in ac-cordance with Specification MfL-G-6099 foras, and Spacitication M.IL-G6162 for dc orof a type approved by the procuring activity.

3.2.8.1 C!leartmtce.To facilitate interrhange-abitity, a minimum generator installationclearance conforming ‘a that shown onStandard AND103O5, AND10343, or MS33539, se applicable, ehsU be provided, eventhough the generator specified does not re-quire those clearances.

3.2.8.2Accesw”bili@. The generator shall beso positioned and instaUed that:

(a) The terminals are readily accessiblefor maintenance and inspection.

(b) The window strap or end bell, orboth, can readify be removed forbrusb and commutator inepeetion.

(c) The generator may readily be re-moved for servicing.

(d) Hydraulic fines and other tubingdo not interfere with periodicinspection.

3.2.8,3 t%olin~. When required by the gen-erator design, means shaU be provided forforced cooling. The amount of cooling sir re-quired end the inatalfation of the duct ehallbe es specified by the procuring activity. Thecooling air duct shaU have sutlicient flexibil-ity b.- allow for the mnximmn possible rela-tive movement between the generator andduct,shalfnotimposeatressesonthegenera-

w approved by the p“mcuring activity.. ... ..

‘- tor,and hhiifl be dbsign~d” to mihbnize tbe

3.2.6 Inverters. Invertere shall be in accord-ance with Specification MIL-I-7032.

3.2.6.1 Mounting of inverters. InvertersabaU be installed in accordance with Spccifim-tion MIL-I-7032.

3.2.7 Motors. Motors shall be in accordancewith Specification MIL-M-8609fordc sYs-temeand Specitiu+tionMIL-M-7969forac-

8

possibility of water or foreign material en-tering the generator.

3.2.8.4 Remote dr-ivea @-nemturs. The in-stallation of remote driven generatore andtheir tilves shall bo contingent upon theprocuring activity’e approval.

3.2.9 Liu/( ti71gequipment. Lighting equip-ment shall be in accordance with Specifica-tion MIf-L-6723. The instalpatiun of exteriorlighting equipment shaU he in accordance

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withSpedicationMIL-L-6780.InatallattonOfimtrummt lightingdud]beinaacodanawithSpecificationldlI&-6667.InnddittoILUghtingforAirForceaircraftehattbe tnaccordancewithSpedkattonAfIL-L-6S03,and forNavalaircraftInamordnncewithSpecificationMIL-L18276,orneotherwiaanPPrOVed by the procuring activity.

3.2.10Pocoer reaptaclea.. . . --- . .

32.10,1 Ezterrml. Extend pOWC, rCWP-

&lea for 23-voltdc servicepower shrillcen-

form to Stnndard AN2662.E&ternelpowerreteptacleefor115/200-voltncservfcepowerehallconfomrtoStnndnrdANS114.Recepta-cles for jet engine etnrting shnt} be in amord-ence with Standard MS25018.

3210.1.1 Installation of Tmeptecfca. Thereeeptncle9 ehall be located to facilitate omaa-eibffity from the ground and to minimizehazarda to personnel fmm opmtfon of theaircmft engines and from fuel vent overtlow.IiMernat power receptacle atmtl be locatedbehhtd the emne wceaa doer or behind eepar-ate oeeeaa deere which are located within6 feet of each other. The dwr shot] be mhinged and deaigmd that it till nutomntic-efly etay closed when not in uaa and shallopen against the clip-etmam. The dtwr maybe nn acwsa door provided for other pu~paws, except thnt the receptacle ehnll not beinatntled in wheel weIls or bomb boye. Theacceaa dmr shall be adequately identified,subatnntifdly oe follows: “Extemnt PowerReceptacle, 23 volts dc; 115 volts, 400-cyclea$”. Suitable protection shall be pmvidcd toprevent irindvertent shorting of the pins or

terminal studs. If the raceptneles am in-stalled side-by-aide; there shell be nt lend2~. inches, center-te-center of the pins, sep-nrtmg them.

3.2.10.1.2 Electrienl pretcctien. The hlstalla-tfon shetl provide menns to isolnte the receptacle frem the oiremft buq whenever:

(0) The mating plug is disengaged.

(b) Reversed dc pehvity axiste ot theplug.

MIIAJ-70BOB

(C) ~VWWd phoee eaqllarlca axfata attbe ptug.

(d) Anopenphaea axiatstntbeextemalpower eoume.

3.210.2 Internal. When required by the pro.

_ ~ti~ty, internal mceptastea ehall betnetalled to provide ne or dc ne foItowa:

3.2J02.1 For Nawd airemft.

(a) 4 tdWI power receptacle.

(1)

(2)

(3)

~: Receptacle outtete for 116/266-vok W and 116-volt 10, 4C0cycle power ahotl mate with plog,Pnrt No. AH32106-2O-.4P. The *ceptacte shall be capped with Pa!tNo. MS25fM&20C.

Connection: The receptactea eheIlbe wired eo that contacts & B, C,mrd D are respectively connectedto phnees T,, T,, T,, and neutralSingl&phase receptnclee shell bewimdaothat mntncte Aand Darw~=tively cOnnOCted ti phneeT, and to neutret. Each tine, ex-cept neutral, shall be proteeted byn 7.5-nmpare circuit breaker.

tdentitkntion: The receptaclesshrill be identified ne “l15/200-volt AC Utility Reeeptaele” or“115-volt AC Utility AC Recep-tacle,” ne npp)icntie.

(b) Dc util:fu power rcceptaclea.

(1) w: Receptacle outlets for 23-volt dc power ehnll mate withplug MS2106-16-11P. The mcep-tde shntl be capped with PartNo. MS26042-16C.

(2) Connection: The receptacle eheltbe wired so thnt pin ‘“A” lagrounded (negntivc) end pin “B”ie positive (+26 volts). The pnat-tive line shrill be protected with n7.6-ampere circuit breaker.

(9) ldentificntiun: The receptacleahntl be identified ne 4“”23VDCUtitity Receptacle”

9

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MMA?+7080B

(c) Test receptacks. Testreceptacleshall V-6753,orshallbcapprovedby the procuringbs provided for che&ing each ac and activity, Ammeter shunts shall conform to ●dc power source.The receptacle shall Specification MILS-61.be connected to the prime sour-cc andita associated conversion equipment if 3.2.11.1 In.stalfatiorz of meters. The installa-the mime source is either sc or rlc. tion and lncation of meters shall bs such as

.. ....,When there are bqth.ac and dc.wim? ...@. @T~~d .gnod, visibility.Md “.to..minimize. .

sources, the receptacleshall be con-

nected tn buth these soumes.

(1)

(2)

1 (3)

Type: The receptacle shati matewith plug hTS3107A16SSP.Asuitableprotectivecap shallbspruvidedforeachreceptacle.

Connsctinns:The rweptacle shallbe wired so that cnntacts A, B, C,D, and E are respectively con-nected to T,, T,, T,, ground (SCneutral, dc negative), and 28-voltdc positive. Each line, except theground shall be protded by a5-ampere fuse.

Identification: The receptacleshall be identified as “Power SyY.-tem Test Receptacle,” and shallinclude voltage information.

3.2.10.2.2 For Air Force Aircraft.

(a) Internal receptacles shall comply withDrawing 53A6232.

(b) Identification: Each l~wer receptacleshall bs permanently identified as“Power Receptacle.” fn addition, theidentification shall include the follow-ing: Voltage, phsae, frequency andvolt-ampere or current rating, asapplicable.

1~~ 3.2.10.3 Power receptacle. Each power re-ceptacle shall be permanently identified as

‘- “‘Power ‘Receptacle.” In addition; the-i iientifkcation shall include the following: Voltage,phase, frequency, and volt-ampere or currentrating, as applicable.

3.2.11 Meters. Ac and dc meters, such asammeters, voltmeters, voltammeters, watt-varrneters, and frequency meters shall con-fur-m to Specifications MIL-A-67W and MIL-

effects of parallax. Adequate shuck mount-ing shall be provided if the meters are in-

stalledwhere they willbe subject to vibra-

tion which exceeds the limits of the meterspecification.

3.2.11.2 [nstalfution of shunts. Ammetershunts shall not be used as terminal blocks.Two ammeters may be connected to oneshunt.

3.2.12 Switches.

3.2.12.1 Togruk switches. Toggle switchesshall be installed for manual operatinn only,without toggle extensions, and shaIl he inaccordance with Specifications MIL-S-3950and MIJA+8834.

3.2.12.1.1 Lerwr-fock. switches. Lever-luckswitches shall be in accordance with Specifi-cations MILS-3950 and MIL-S-6S34. Suchswitches shall be used when a requirementexists nn positive locking to prevent inad-vertent operation of critical or hazardouscircuits.

3.2.1212 Accm*”bility. Toggle ewitches shallbe accessible for operation in flight, exceptswitches used for gruund oparation only.Care shall bs exercised in grouping andlocating switches to prevent impruper kelec-tion and inadvertent operation.

3.2.12.3 Installation of switehs. Switchesdial]” b6’ iiiiitill~d”iri tiEoFdante with S~MI-ard MS33630. Switch orientation shall be inaccordance with Standard MIL-STD-203 orMIIXTD-250, as applicable.

3.2.12.4 Guards When switch guards areused in lieu of lever-luck toggle switches toprevent accidental operation, they shall be inaccordance with Specification MILG-7703.

. . . . .-(

{

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0

3.2.125 Additicncl switch space. Spcce ehcllbe provided on eneh e~tch panel contniniog

four or mom switches for the subsequent

installation of two spare switches. The spncefor spsre switches will be determined by theequipment nnd circuit cfnta nvnitable on thedate of the eircroft mockup inspection.

3.2.126 Limit and pu8hfmttoe 8wi!ch f?.%timit nnd pushbutton switcbcs shell not headapted fmm nny switch designed for toggleopemtion. They shall be in accordance with&W2ifiCnti0n9 bllL-$6’/43 and MIL-.%6744.

3.2.12.6.1 Adjustment. Limit switch adjust-ment shcdl hove a pesitive lock mrd adjust-ment, be readily ncccssible. nnd not requires-inl tcel~ fnr smicinjc The ns!!embly shellbe su~lciently rigid to prevent rrmgh sen,icehandling fmm mistdining the adjustment.The instnllntion shall also be sufficiently rigidto prevent misopemtion owing to flcxure ofstructure or relntive motion between theswitch nctuntor nnd striker. The bending rrfn tab to adjust n limit switch is not eutis-fnctory.

:::2.12!.6;2 .hmfinpvcav rontvol rred mzm-ixo. Sealed limit switches 4mll lx. used on allexpused Ianding-gcnr-contml and landing.gear-warning syetems where limit switchesare required.

3.2.12.7 /@/if km 8witchc8. ]gniliOn switchesshall be so installed that they are ncccssiblefor control.susd not subject to inadvertentopemtion. Multi-engine aircraft shall beequipped with an individwd ignition switchfor ench engine. These switches shell be inaccordance with Specification Ml L-S-6746.

3.2.1 2.7. I Tra ininu nirr’raft {nstallalien.lW]ere the ccmkpit nrrengemcnt is such es torequire a second ignitiou<ontrol position.only one ignition switch shun be instntled.

The sLwond control position shrill consist of nswitch Immlle nnd indimtw. plate mt+]lnni.mlly linked to the ignitiuuswitch.

3.2 12.!3 Rotaw 81LitChC8. Rotary sWikhCS

shall be so installed that the extreme counter.

MI IAZ-7080B

clockwiee position is the “OfT’ peition, andthat the switch case will not rotate with re-8Et ~ the mounting panel. Rotary switchesahcll be in necordasrce with SpecificationMUA?AS07.

3.2.13 Circnit prctcctiue devicee. Circuitprotective devices shell be used for pmtcc-tiun of all circuits nt the puint of power take.ot7 or n muximum of 1 fout of wire fmm thebusses. Circuits shnlt be imfividuclly.prutocted. -.except certain nonvitu] circuits, such 08 thoseused only nn the ground, which mcy be pr-otected by n common prutectivcdevice.Those

cimuit protectice devices which directly aflcct.%~fetyof flight stroll be accessible in flight toLhc pilot or crew.

3.z.I 3. I Tuprs of circuit prot reticr dcvtic8.

Circuit breakers, fuses, nnd current limitersof uppmved type shcdl be used, es required.by distribution system und cimuit dmign.

3.2. I3.2 Capecit~. The capacity of the ~ir.cuit pmteeting device shell be such that itwill:

(a) Prevent wire dmrruge under short-circuit conditions. Also. in loudcircuits it shall prevent wiredemuge (including objectionablesmoke) under overlucd conditions.

(b) Prevent demnge to circuit interrupt.ing devices, such us switches andrelays, in the wiring up to theload equipment.

(c) lsolnte a fault to prevent intermpt-ing prover ton6imis&iiit@d equip’ “ “ment by providing bus pmtcction.

(d) Cuordinah with other protective de.vices in the dietnbution system.

It is not intended to provide equipment pr-otection by meens of circuit-protecting deviceswhich connect wiring to the bus, xcept thei~mkction incidentntly achieved by keeping

Ihe circuit.pmtcrting device capacity 0s low

M Imsslblewithout the occurrence of nuj.sncrce outeges caused by inrush current curdhid ambient tcmpemture.

11

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3.2.13.3 Circuit breokm. Tripfreetypecir-cuitbreakersinaccordancewithSpechics-tionRflL-C-5809shsllbeinstilled.

3.2.13.3.1 Switch breukem. Switch breakersshall be used only where circuit protection

,- Wd ci~ui-t cSnQ@ jn-~ne,ygit is desirebIe orrequired.

3.2.13.3.1.1 Guarde on switch breakers.Guarda shall not interfere with the overloadoperation of switch brakers.

.?.2.13.3.2 Irwkslfatiun of sired and switchbreaker-s. Circuit breakers shall be installed inaccordance with Standard MS33590. Switchbreakers shall be so mounted that the hanrUeof the switch breaker is down or to the rear,(“rear” shall be interpreted in terms of“operator” position) when the breaker is inthe “Off” position. Circuit breakem sbsll begrouped by function within any one type ofpower bus.

3.2.13.3.3 Ackfitimud cz”rwuit breaker epsce.Space shall be provided on breaker panels forthe installation of at least one additional cir-cuit breaker for each group of 10 or fr~tiOn,

thereof installed.The space for spare circuitbreakers shall be determined by the equip-ment and circuit data available at the sir-crsft mockup inspection.

3.2.13.4 Fwwm. Current-limiter (high-melt-ing-peint) type fuses shrdl be used for short-circuit protection in a multichannel systemnetwork. This type fuse shall alze be used for-backup short-ciiuit protection in load cir-cuits where the interrupting capacity of cir-cuit breakers may be inadequate. When fusesare selected for overload protection, they

_ sbaU .be the low-melting-point type._Fuses-,shaU be in accordance with SpecificationMM--F-5372 for high-melting point or Spec.f-tication MIL-F-15160 for low-melting point.

3.2.13.4.1 Fuselwkf.er marking. The fuserating for each circuit shall be plaiily markedat a suitable Iocation adjacent to the fuse-holder and ehsll be readable with fuse inplace.

12

3.2.13.4.2 Fuse mtrnus. Fusu shall be ofsuch rating as to carry the heaviest load to ●be encountered on the circuit, Where motorstarting currents are severe, fuse capacityshaU be sufficient to carry at least 70 percentof tbe locked-rotor current of the largestmotor d~?wing current. ~hrough ~h~ fuse. Ifmultl~le-wire’ fe’iders are involved, this ;e~- “ -quirement shall apply to the remaining wiresafter one of them has been eliminated byprior damage.

3.2.13.4.3 Location of fusee. Fuses shall hew located that checking and re@scement can ibe easily accomplished.

3.2.14 Rheostat-s and resistors. Rhecs.tats (shall conform. to Specification MII..A&6749.They shalj be installed in such manner es toprevent rotation of the rheostat body withrespect to the mounting panel. Resistore shallbe in accordance with Specification MIL-R-26 and shall be so installed that the heatdissipated will not affect other equipment.

3.2.15 ReZaye. Relays shall coaform to SP&cification MIL-R-6106 and the applicabledrawings. Reverse current relaya shall be inaccordance with Specification MIL-G5026.

3.2.15.1 Application. Relays shall be in-1

etaUed for tbe control of circuits that me atsuch distance from the electric power source I

that a lower weight or greater safety factoris achieved. Relays shaU also be installed toprovide adequate switching capacity when Imanual control switches. of the proper sizeor rating are not available, or to provide 1proper sequence ofoperationnotreadilyOb-tainable by manual control switches. Inter-mittent duty relays shall not be installed incircuits where the relays will be subject to aduty .cycle gn??ter. t~w..$ha~ t?r. w~c!! t!%? . ..- -..4relay is rated. When selecting relays for low-current application, particular attention shaUbe given to szsure that the cent.acta aresatisfactory for the service intended.

i3.2.15.2 Instdfatti of rekzy8. Relsys sbail

be so installed that tightening of the bus Ior cable to the terminals wiU not causedamaging strainon the relay.

e

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3.2.16 Genemtor circuit disconnect. Thegenerator cimtit cfisconzzectdeviceshallbe 10.

rated as ctoaeto the main bus as practicable.

3.3 Mezctlflmtton of equtpment. Electricequipmentshall be identified on the adjacentstmctum es to the name and functionof theequipmenL This requirement is abrogatedfor that equipment whose name ozzd functionis obvious, and for the equipment which isofa claesil%d mture. 1n9pecti0ncovem leadingto etectric equipment shoIl bear identiftea-tion of the equipment to which the coverleads. Names shall be selected to minimizemisundemtandhrg, md shaIl be consistentwith identitlcotion used on tiring dingmmand in maintenance hnndbooks.

3.3.1 SpeeiuJ &ntifimhn. In addition tothe above, items of equipment which areidenticnl in function and nppem-rmce but dif-ferent in some critical manner not cendilyaPP=ent. ~d therefore not interchangeable,such ns genemtom having opposite directionsof rotation, shafl be plainly identified on theadjacent structure.

4. QUALITY ASSURANCE PROVIS1ONS

4.1 CtassMention of tests All the tests m-required herein for the testing of electricequipment installation are classified 0s oe-ceptance tests, for which neeessnry samplingtechniques and methods of kting me speei.fied in this section.

.. 4.2 Installationmnckup. Priortodeliver.vof

the tlretniremft nnd in time to permit neededchnnges, the contmctor shrill conduct an elec.tric equipment installation mockup for ins-tion by the prccuring activity. At this moek-UP. the cOntmctor shnIl demonstmte electricequipment instnllntionnnd specificpmctices

for which de~riaticmsare required.This mock-

up mny he conducte(lon n productionuircmft.

4.3 Inspection of first .aircmft. The electric

@

equipment instnllntion of the fimt complete

aircmft shall be inspected at the contmctor’splnnt by the contmctor under supervision of

MIL-Fz7080B

the Government inspector to determ;oe con-formance with thts speciftention. The electric

equfpmeot tnatallatfonof the firstcomplete

oiccmft shn!l also be subject to inspection

and approval by the procuring activity.

4,4 ChangeE tn electric eqrdpment instnttn-ffon. Aircraft in which changes have been

mode in the electric equipment instoflationshall be inspected at. the ,eontmctoz% plantby the eontmctor under the supervision ofthe Government inspector to detemrine cnm-ptiance with this speeillcation.

4.5 Checks The equipment tempemture re-quirements shall be checked ngninst the nir-cmft environment for ench of the fo)lowingconditions:

(n)

(b)

(c)

(d)

(e)

(f)

(tr)

Altitude: From sea level to opemtingceiling, nt 20,000-fnot intervnls.

Airspeed: Both moximwn nnd mini-mum for ench attitude.

Surroundingairt.empemture(nnrbientplus mm rise plus rise owing to heatdissipating equipment): Mnximumand minimum for ench nimpeed nndoftitude.

For blnst-cno!ed equipment—mm risetcmpemture (ambient plus mm rise):

Mnxinzum and minimum for eneh alti-tude and ninrpeed.

For blast-cooled equipmen~vnilableMM PFCSSUI’U~d ~rnow (pounds perminute): Maximum and minimum foreach altitude rind. airspeed: . . . .. ..

EtTect9 of engine speed.

Time nnd frequency of each opemtingcycle.

(1)

(2)

If high tempemtures dictate theuse ofn special cooling system,

this system shrill he chwked fornll expected environmental conrfi-tions ns stuted in 4.5 (n) through(IT)

ll,e equipment cunlin~ mquire-menls shnilhe lMsed (m ultitude

1s

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MIL-E-7080B

chsmber data, tlighttestdata,or

standard derating curves whichare approved by the procuringactivity.

(3) To the greatest possible extent,testing shaU be done under pres-

.. . . . . ... . -- .. . ..-. .. . ...- --sui’e”aid “kiiiiow corresponding todesign operating conditions.

(4) The contractor can forego theabove checks if it can be substan-tiated that the equipment hasbeen satisfactorily operated inproduction aircraft under similaraltitude-temperature conditions.

4.6 Individual tests.

4.6.1 Inspection shall be conducted by thecontractor on each aircraft to insure compli.snce with the requirements of this specifica-tion.

4.6.2 CircuiL Such testsas are necemry

shall be conducted by the contractor on eachcircuit to demonstrate that the complete elec-tric installation conforms to the requirementss~ified herein, and that satisfactory oPera-tion and functioning of all electric equipmentresults

5. PREPARATION FOR DELIVERY.

5.1 This section is not applicableto this

specification.

6. NOTES

6.1Intendeduse.The requirements cov-

1 erml by this specification a% intended for

1 , .. . - . .. ----- ,, . . .. .

I 14

use in installing electric equipment in air-craft. The installation of electronic equip ●rnent is covered by Specification MIL--87OO.

6.2 W’iring installation. Interconnectionwiring between electric and electronic equip-ment should, be installed in accordance with- . . .Specification MIL-W-508S,

6.3 International standardization. Certainprovisions (see 3.2.10.1 ) of this speciticatioriare the subject of international standardiza-tion agreement ABC AIR STD 12/6. \Vhenamendment, revision, or cancellation of thisspecification is proposed, the departmentalcustodians will inform their respective De-partmental Standardization Offices so thatappropriateactionmay betakenrespectingtheinternationalagreementconcerned.

Notice.Whe. Governmentdrawings,speciticatimmor otherdataareusedforany purgmseotherthanin connectionw.tha definitelyrelstedGovernmentprocurementoperation,the UnitedStatesGovern.ment therebyincursno responsibility“.. my obli-gationwhatsoever;and the factthatthe Govern.rmmt may have formulated,furnished,or i“ any

WY swplied the saiddrawings,specificntiom,orotherdata is mt to be regardedby implicationor otherwisem inimy mrmmr licerwi”gtheholderor my otherpersonm ccrpomtion,or conveyingany rightsor permissiontn manufacture,use,orsellany patentedimmntionthatmay i“ any wayhe relatedthereto,

C“,tdill”, ,

Army—TCMvy-wep

Ai. FOI.W_AFSC

lmern.IIonalimwmI (...w.tion6)

I%ep.rhs .ctivi8y:

iv,)—w.+?

.. . . . . . . . ..... . . ----

i

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STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL I OMB APPmv.1No.22.R25s

INSTRUCTIONS l%. purpo.e.1thisformi.t.solicitbeneficialcomment.whichwillh.lp.chl.v.procure.mm! ofsuitablepmd.ctm.1reasonable.O.I●nd minlniu.s,delay,orwill.thervl.eenhsnce u.. 0! fhe docum.ntDoD c.ntr.ct.rs,~.emment .clj.itie..oreaznuf.cturer.lvendorswho ●repro.p.ctives.ppli...offhepmd.ct.reinvited1.submitcmments 10the s.vefnme.l. Fold . . lines . . r.vet. e aid., .t.ple b comer, .nd ..nd t.?r.P.ri.R ..li.iw. Comm-tm .ubmitt.don 1hi8 form do ..1 cermtilule or imply .ufh..ization 10 w.i.e -yporfi.n ofthereferenceddocument(.)orte●mend contractualrequiremeotm.Attmch●ny perflnentdat.whtchmy be d useinimpmvi.gthisdocument.11there●re●dditionalpwer.,.ttachtoform-d pl.cebothinanmvelope.ddres.edtoprep.rlmg.ctivity.

3CUMEMT IDENTIFIER ANO T,TL.Z

MIE OF ORGAMIZAT, ON ANO ADDRCSS CON TRAC7 NUMBCn

MATERIAL c.nOw Reo UNDER 8

0 o,*tc, co. e.wuw, CONTRACT m SU.COF4V.. C,H4S ANY P&RT OF THE 00 CUMENT CRC&TEO PRO BLE”SOR REQ”, REo ,“TLERPRETAT,OIIIN PROCURC”Etl TUSE?A. GIVE . . . . . ...” NU”ml!m .Mo “om Dl?4G.

., .ILC01414E*0.,, ONS .0. CO* RCCTINO 7“, O. VVCIENC,.,

COMMENTS ON ANY DOCUMENT REW,RE”ENT CONSIDERED TOO FI,G,D

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REMARKS

BMITTEO B“ (Prtn,.d ., ,yI,..j “m. m,d odd$.,, - Opt,...!, TELEPHONE NO.

DATE

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