SAFETY

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79B00873A000100010052-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 16
• Document Creation Date: December 28, 2016
• Document Release Date: November 1, 2012
• Sequence Number: 52
• Publication Date: May 29, 1969
• Content Type: MISC

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officer.
MIL-STD-454C
REQUIREMENT 1
SAFETY (PERSONNEL HAZARD)
1. Purpose. The purpose of this requirement is to establish objec-
tives in the design, development and production of military electronic
equipment to promote maximum safety of both operating and maintenance
-personnel and equipments during all phases of operational life.
2. Documents applicable
to Requirement 1:
MIL-R-9673 Radiation Limits, Microwave and X-Radiation
Generated by Ground Electronic Equipment
(As Related to Personnel Safety)
MIL-M-19590 Marking of Commodities and Containers to
Indicate Radioactive Material
MIL-STD-129 Marking for Shipment and Storage
USAS 7.35.1-1959 Industrial Accident Prevention Signs,
Specifications for
Definitions. The following definitions apply to Requirement 1.
3.1 Chassis, electrical equipment. The chassis is a structural
? item of electrically conductive material fabricated in such manner as to
facilitate assemblage and interconnection of'elect.rical or electronic items
for the specific purpose of providing a basis for electrical or electronic
circuits. It normally hd's drilled or stamped holes to'acco mmodate the
items but may include only the items necessary for-its own mounting and
support.
3.2 Frame. The frame is any construction system fitted and united
together, designed. for mounting or supporting electrical or electronic parts
.or units.
4. General consideration. The design and development of all military
electronic equipment shall provide fail-safe features for safety of person-
nel during the installation, operation, maintenance, and repair of inter-
changing of a complete equipment assembly or component parts thereof.
4.1 Additional considerations. Proper instructions in accident
prevention and. first-aid procedures shall be given all persons engaged in
electrical work, to fully inform them of the hazards involved.
(a) Current rather than voltage is the most important vari-
aLle in establishing the criterion for shock intensity. Three factors that
determine the severity of electrical shock are: (1) Quantity of current
Supersedes
to June 1968 ' 19 May 1969
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MIL-STD-454C
flowing through the body; (2) path of current through the bod
duration of time that the current flows through the body. The necessary to produce the fatal current is dependent upon theresistaece of
the body, contact conditions, and the path through the body. (See table
1-I).
TABLE 1-I Probable effects of shock
Current values (mil'liamperes)
AC
60 Hz
Effects
Preception
Surprise
Reflex action
Muscular inhibition
Respiratory-block
Usually fatal
(b) Sufficient
currenti
passng through any part of the body will
cause severe burns and hemorrhages. However, relatively small currents can be
lethal if the path includes a vital ?art of the body, such as the heart lungs. Electrical burns are usually of two types, those produced by heat
the arc which occurs when the vodv touches a iii~, heat caused by of
passage of electrical current through gh th_eoskineand circuit, and
There
are various methods of incorporating adequate safeguards for personnel
of these methods being implicit in routine design procedures?
y
tional design requirements and relative information pertaining. However, addmani-
personnel'are outlined and detailed in this military standard. to safety of
At
(c) Human engineering factors affecting safety considered when writing general or detailed equipment specific/
tlions also be.
5. Electrical. The design shall incorporate methods to protect nel from accidental contact with voltages in ecess of 30 volts root
square or direct current person-
(rms or dc) during normal operation of a complete
equipment. Means'shall be provided so that power maybe cut off while
installing, replacing, or interchanging a complete equipment, assembly, or
part thereof.. Personnel shall be protected from capacitor discharges and
when chanting fuses or tubes. The main Hower ON-OFF switch located on t
equipment (clearly labeled as such) shall cut off all he
equipment. The power input side of the switch and thepincomingtpowerr linee
connections shall he given physical protection against acc ental contact.
Suitable inte nial protective measures are defined in table
1-II.
o P.E~UIR}.`7i;VT 1
29 May 1969 Supersedes
1-2 REQUIREMENT 1
10 June 1968
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5.1 Ground potential. The design and construction of the equipment
shall insure that all external parts, surfaces, and shields, exclusive of
antenna and transmission thine terminals, are at ground potential at all
[)? times during normal operation. The design shall include consideration of
ground faults and voltage limits established on a basis of hazardous loca-
tion. Any external or interconnecting cable, where a ground is part of the
circuit, shall carry a ground wire in the cable terminated at both ends in
the same manner as the other conductors. In no case, except with coaxial
cables, shall the shield he depended upon for a current-carrying ground con-
nection. Antenna and transmission line terminals shall be at ground potential,
except for radio frequency (rf) energy on their external surfaces. Plugs and
convenience outlets for use with metal cased portable tools and equipment
ahall have provisions for automatically grounding the metal frame or case of
tools and equipment when the plug is mated with the receptacle.
5.2 Grounding. Ground connections to shields, hinges, and other
mechanical parts shall not be made tp complete electrical circuits. The
chassis or frame may serve as the common tie point of the neutral carrying
wire. The path to ground from the equipment shall:
(a)
fill
be
D
Be continuous and permanent.
(b) Have ample carrying capacity to conduct safely any operat-
ing or fault currents that may be imposed upon it.
(c) Have impedance sufficiently low to limit the potential
above ground and to facilitate the operation of the overcurrent devices in
tie circuit. Wires installed in long lines (conduit or cables), which are
inactive, shall be grounded to allow for stray or static electricity
discharge.
(d) Have sufficient mechanical strength of the material to
minimize possibility of ground disconnection.
5.3 Grounding to chassis. Ground connection to the chassis or frame
shall be mechanically secured by soldering to a spotwelded terminal lug or to
a portion of the chassis or frame that has been formed into a soldering lug,
or by use of a terminal on the ground wire and then securing the terminal by
a screw, nut, and lockwasher. The screw shall fit in a tapped hole in the
chassis or frame or it shall be held in a through-hole by a nut. When the
chassis or frame is made of steel, the metal around the screw hole shall be
plated or-tinned to provide a corrosion-resistant connection. If alloys of
aluminum or aluminum with.--a corrosion-resistant surface finish are used' the
metal around the screw hole shall not require masking if resistance of ess
than', 0.002 ohm is measured through the coating.
5.4 Shielding. Shielding on wire or cable shall be grounded to the
chassis or frame, in the manner specified in 5.3. The shielding shall be
.Supersedes REQUIREMENT 1
REQUIREMENT 1 1-3 29 May 1969
.10 June 1968
t'
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? MIL-STD-454C
secured to prevent it from contacting eYxppoosedt
grounding,to the chassis or frame at an Carr in
incurothrent-
urination. er, than theg parts or
The shielding shall end at a sufficient distance from exposed
to prevent shorting ground ter-
ondug,
g or arcing between the conductor and the
the
5.5 Ouuards and barriers.
having voltages between 70-and 500 vAll tts, oltsorriscand dc withls
shall have barriers.or-guard rovided to rrgv ~ and like devices
contact veto s provided to g
such voltages. ant personnel from acci
dental
ntal
indicate the approximate The barrier or guard shall be marked t
highest voltage (nearest round number) w
be encountered upon removal,
which may
5.6 Interlocks. Various e
approaches to me use of intius equipment designs require different
the folloCVin These shall fall in one or more of
g categories and shall be consistent with equipment or system
specifications. Interlock switches, as referred to herein, shall be described in 7.1.
e the
are provided with Noornterlocks required on
ds, major unit: When compartments
. is required for adjustmentovers, or plates where access s into the compartment
no interlocks on the major normal operation of the equipment,
of 70 volts rms are protected with barriersguiorred provided
prvoltages event per so excess
faccidental contact. guards t to prevent
from o cc. Holes in the barrier ma b testing
Assemblies operating Y e utilized for testing
dc shall be completes at Potentials in excess of 500 volts Purr and
Y enclosed from the remainder of the assembly located in the equipment in which they be separately ic_,e, y are to be operated; such enclosures
when
cloa
shall rs interlocked. (Examples of units in this category are
contr-ol units, and consoles which may have a small separate he
voltage supply for a cathode ray tube which shall be interlocked..),
high
h ).
(b) Interlocks required on major units with bypass devices:
When compartments are provided with doors, covers, or plates where access into
the compartment is required for adjustment
of the equipment, the doors, covers purposes in the normal operation
locks with bypass devices that remove oalllpotentiallineex ui
inter-
(see 7-1). This requirement shall also apply q aped with inter-
unless the cess pa 7t r sir ems
y discharge to 30 volts within 2 to seconds or less. If this circuits
impractical, such as in transmitters, modulators, etc.,agroun
be provided. f this is
between p
l
70 500 ts and dc rovided. and All cvnlacts, terminals, and like devices having potent ia shall
to revent p shall have barriers or guardsprovid
eii?
ageppotentialssexceedingm500cvoltsd rms contact. Assemblies operating at vo
and dc shall be completely enclosedt-
REQUTA.FINtENT 1
29 May 1969
1-4 Sups seder
' REQU Rl MENT 1
10 J ne 1968
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MIL-S'i'1i-454C
(c) Interlocks required on major units with no bypass devices
permitted (over 500 volts'rms and dc) When compartments are provided with
doors, covers, or plates where access into the compartment is required for
maintenance purposes, these doors, covers, or plates shall be equipped with-
interlocks,?-with no bypass devices, that remove all voltage potential in
excess of 70 volts rms (see 7.1). This requirement shall also apply to
associated capacitor circuits unless they discharge to 30 volts within 2
seconds or less. If this is impractical, such as in transmitters, modulators,
etc., a grounding rod shall be provided.' (This type of unit is normally a
charging unit, transmitter, modulator, or intermediate power amplifier (IPA)).
5.7 Grounding rods. Grounding rods of sufficient size to permit
storage of the rod within the equipment shall be provided in all transmitt-
ing equipment where voltages are in excess of 70 volts rms. A grounding stud
shall be provided in all other transmitting equipment to permit attachment of
a portable grounding rod. The permanently attached rod shall be connected
through a flexible. stranded copper wire (covered with a transparent sleeving)
to the stud provided at the transmitter main frame. The connection to the
stud shall be such that accidental loosening or high resistance to ground
shall be prevented. In all other transmitters where'only the stud is
provided, a hand-operable quick-disconnect nut shall be provided to permit
attachment of a portable ground rod.
5.8 Warning markings. All contacts, terminals, and like devices
having potentials in excess of 500 volt rms and dc shall be clearly marked
"DANGER HIGH VOLTAGE (MAXIMUM VOLTAGE APPLICABLE) VOLTS." The letters on the
marking shall be Gothic capitals, clearly legible, color white or aluminum'
with red background (USAS 235.1 - 1959). The markings shall be as permanent
as normal life expectancy of the equipment on which it is affixed, and shall
be permanently placed as close as possible to the point of danger. This. shall'
be on a unit terminated basis and is not intended to apply to individual tie
points within a unit. .
5.9 Meter safety. Unless otherwise specified in the equipment
specification, meters shall have provision for overload bypass or alternate
protection to eliminate high voltage potential or current at the terminals in
the event of meter failure.
5.10. High voltage protection. When the operation or maintenance of
equipment employing potentials in excess of 1,000 volts peak could require
that these voltages be measured, the equipment shall, be provided with test
points so that all high voltages can be measured at relatively low potential
level, but in no case shall the potential exceed 1,000 volts peak-'relative
to ground. This may be accomplished through the application of voltage
dividers or other techniques, such as the use of safety-type panel meters and
Supersedes REQUIREMENT 1
REQUIREMENT 1 1-5 29 May 1969
10 June 1968
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?
MIL-STD-454C
multipliers. Full details shall be given in'the instruction book or
maintenance manual as to the method used in the equipment to obtain the
voltages at the test points.
5.11 Discharging devices. Discharging devices shall be provided
to discharge high voltage circuits and capacitors unless they discharge to
30 volts within 2 seconds or less. These protective devices shall be
positive acting, highly reliable, and shall actuate automatically when the
case or rack is opened. Shorting bars should be actuated either by mechan-
ical release or by an electrical solenoid when the door or cover is open.
5.12 Connections for external power. Application of power to
externally powered test equipment shall meet the following. requirements:
(a) Power shall be controlled by a power ON-OFF switch
located on the front panel. An indicator lamp shall be provided to
indicate "power on" to the test set, except for low-power dry-battery-
operated equipment.
(b) Neither side of the supply voltage shall be directly
connected to the chassis.
5.13 Connectors, electrical. Connectors used to provide separa-
tion of or connection to multiple electric circuits shall be selected so
that it will be imposs3,ble to insert the wrong plug in a receptacle or other
mating unit. Where design considerations require plug and receptacles of
similar configuration in close proximity, the mating plugs and receptacles
shall be suitably coded or marked to clearly indicate the mating connections.
6. Microwave and X-radiation limits. Radiation limits for microwave
and X-radiation generated by electronic equipment or other individual compo-
nents, parts, data, markings, and guides for permissible levels of exposure
to X-radiation shall be in accordance with 14IL-R-9673.
6.1 Marking of radioactive material. The marking or labeling of
commodities containing intentionally added radioactive materials shall
conform to MIL-,4-19590. Packages and containers shall be marked in accord-
ance with MIL-STD-129.
7. Switches.
./.J. lncerlocks. Unless otherwise sr
shall conform to one or more of the following:
REQUIREMENT 1
29 May-1969 1-6
Supersedes
REQUIRES ENT 1
10 June 1968
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0
L4 t~ tD
c H .ri
tD tT rD
r ta
ID Z rA
.01 H.
co
Type of
protection
C 2
vD H
TABLE 1-1l. Suitable internal protective measures 1/
V olt3ge
range
5
5.6
0 - 30 Volts I x
7(Y~ 500 Volts
Guards
and
barriers
Dischat e devices
Auta Ground
matic rods
5.6 (c) ! 5.11 5.7
ge ranges checked. I lo-ever, more than one option may be availab:e bated on design requirement:.
1/ Confine the application of headings to volta
2/ Although no specific requirements exist for servicing from 0 - 70 volts, de.,icns should he reviewed for possible hazard in accordance u th Table 1-1.
3/ Designs may use "No bypass" interlock applications below 500 volts; but the intent here is to imply complete enclosure.
Interlocks
With No
bypass bypass 3/
i
5.5 5.9 5.6 (b)
Step-down
devices
voltage
measure-/
ment
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(a) A two-piece type in which the electrical circuit is broken
by the physical separation of the two parts.
(b) A two-piece type in which the electrical circuit is broken
by the physical separation of the two parts together with an associated
electrically integral bypass device. This.bypass switch or device shall be
of a manually operated type, and shall be such that returning the chassis to
the door, cover, or plate will automatically open the bypass switch and leave
the interlock in position to function normally. Visual means shall be pro-
vided to indicate when the interlock switch is bypassed.
(c) One-piece switch assembly with an integral bypass device.
This shall operate so that returning the chassis to the operating position
or closing the door, cover, or plate will automatically leave the interlock
in position to function properly. Visual means shall be provided to indicate
when the interlock switch is bypassed.
(a) When required by the individual equipment specification,
a battle short switch shall be provided on the main operating console or
assembly to shortcircuit all safety interlocks. An indicator light readily
visible to personnel shall indicate that the battle short switch is ON.
The battle short switch shall also illuminate all interlock indicator lights.
(b) If specified in the individual equipment specification,
.terminals shall be provided in each..senarate cabinet or console for connect-
ing or external battle short switch or switches. A
7.3 Safety. Safety switches which will deactivate'gssocited me-
chanical drive units shall be provided for the purpose of disconnecting
these units without disconnecting other parts of the equipment. All
remotely located assemblies shall have provision for safety switches to
allow independent disconnect in the associated equipment.
7.4 Momentary override. When circuit considerations require
noninterruption of power for efficient servicing, front panel momentary
contact switches may be used to override interlocks and permit access to the
manual override. The override switch shall be automatically disengaged when
the protected access'door or panel is replaced, but power to the equipment,
shall not be interrupted either when the override switch is being activated
or disengaged.
8. Mechanical. The design of the equipment shall be such as to
provide maximum convenience and safety to personnel while installing, operat-
ing, and maintaining the equipment. Suitable protection shall be provided to
prevent contact with moving mechanical parts such as gears, fans, and belts
when the equipment is complete and operating. Sharp projections on cabinets,
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MiL-STD-454C
n 0
?
0
ve
Lte
's
"s.
he
en
at-
to
s
,ts,
doors, and similar parts shall be avoided. Doors or hinged covers shall be
rounded at the corners and provided with stops to hold them open. Equipment
design shall include provisions to prevent I accidental pulling'out of drawers
or rack-mounted equipment components which could cause equipment damage and
injury to personnel. Equipment power switches shall be so designed and
located that accidental contact by personnel will not place equipment in
operation.
8.1 Mechanical interconnection. The design shall provide positive
means to prevent the inadvertent reversing or mismating of fittings, couplings,
fuel, oil, hydraulic,'and pneumatic. lines; mechanical linkage; and instrument
leads and electrical connections. When prevention by design considerations
of mismating is not feasible, coding or marking shall be employed.
8.2 'Cathode ray tubes. Provision shall be incorporated to protect
personnel from injury due to implosion of cathode ray tubes.
8.3 class fibers. Glass fibers materials shall not be used as the
outer covering on cables, wire, or other components where they may cuase.skin
irritations to operating or maintenance personnel or where there is any
evidence of glass fibers protruding from the surface.
8.4 Toxic materials. The materials, as installed in the equipment
and under service conditions specified in the specific equipment specifica-
tion, shall not liberate gases Rwhich combine with the atmosphere to form an
acid or corrosive alkali, nor shall they liberate toxic or corrosive fumes
which would be detrimental to the performance of the equipment or health of
the equipment operators.
'8.5 Insulation of controls. All control shafts and bushings thereof
shall be grounded'whenever practicable, alternatively, the control knob's or
levers shall be insulated from the shaft to prevent electrical shock or burns
caused by the possible existence of high voltage or voltages induced by stray
high-frequency fields.
8.6 Temperature. Where people are involved, and under any condition
of operation, exposed parts, including the enclosure of the equipment shall
not achieve a temperature in excess of 60?C at an ambient temperature of
25?C. The temperature of front panels and operating controls shall not exceed
43?C at the same ambient temperature.
Supersedes
REQU.IRET NT 1
10 June 1968
REQUIREMENT 1
29 May 1969
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1. Scope ........................ . .6
2. Limitations ...... .:.. ........ .. .
3. Leakage Current ..................................... ... 6
4. Test Method and instri-imcntation for Measurement of Leakage Current ........... 6
4.1 General ....... . ........................6
4.2 ''t?'?L:te:'ISii%S ]squired of ....... .. ... .. .. .. .. ? . 6
E
4.3 Conditions of Test ............................................................6
1
4.4 Test Equipment....... . ......................... 7
4.5 Test Procedure :. ::..:::... 7
5. Revision of American National Standards Referred to in This Document ............ 7
Table I Maximum Leakage Current ..... .... .... .....:...................... 6
Fig. 1 Circuit for Leakage Current Test ... .. ......:.............. .
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f ?. w
u ~`.>s ii ?'e :.' i i1 a u ~., _O Ii S eO' ~~ ti C~~' Q to
ii ~.t il, 1',a v, ~' i~I ii is t'-?.s~~ ~ "f `~ao .._J h;i'! 6 tt Ci~i 7 !1 it 0 t:.' [f Lf .':ch' ~J l ~r u it l.1 n !i Ee. ?r/
1. Scope
This standard is intended to provide maximum limits
for appliance leakage current to which users may be
exposed in normal use of the appliance. Supplementary
information for specify appliances, including condition-
ing for tests, will appear in individual product standards.
This standard is limited to use ;vith~~oitsejrold S td sim
ilar appliance having t;vo-wire or three-wire (including
grounding conductor) flexible cord connection and
rated for use on 120-volt. single-phase circuits.
3. Leakage Current
When measured in accordance with the test method
covered in this standard, the leakage current shall not
exceed the values shown in Table l'.`
Table I
Maximum Leakage Current
Maximum
Type of Appliance Leakage Current
(Rated for use on 120 V circuits) (m A)
Two-wire cord-connected appliance - 0.50
Three-wire (including grounding conductor)
cord-connected, portable appliance 0.50
Three-wire. (including grounding conductor)
cord-connected appliance (other than
portable)-with standard (complying with
American National Standards C73.11-1966
or C73.12-1966).attaehment plug cap rated
120 V, 20 A or Tess
0.75
NOTE: Appliances having a loss-of-ground detector which
dependably opens the live conductor are exempted from the
requirements of this Table.
}
4. Test Method and Ilts'ir[]n'C,ItatlJil 01'
Measurement of Leakage Current
4.1 General. This test is to provide a measurement of
leakage current of ac appliances normally rated for use
on nomin ,ily rated i20-volt single-phase circuits.
4.2 Characteristics Required of Pleasuring Circuit
4.2.1 Meter: Average responding, calibrated at 60 Hz
(c/s) and indicating rms value of a pure sine wave. If dc
component is present, use meter which also responds
to dc.
4.2.1.1 Maximum error: The limits of error of the
measuring instrument shall not exceed ?5 percent at an
indication of 0.5 milliampere or at an indication of 0.75
milliampere..
NOTE: The meter may be an electronic or a direct indicating
type ureter. -
4.2.2 Meter terminal impedance at 0.5 milliampere:
1500 ohms noninductive resistance shunted by an 0.15
jiF capacitance.
NOTE: Frequency response of circuit of meter terminal imped-
ance approximates the exhcrinlentally determined 50 percent-
ile threshold of perception curve for hand holding a small wire.
4.3 Conditions of Test (see Fig. 1)
4.3.1 Appliance is to be tested as received at room
temperature, in "ON" position with switch "S1" open.
4.3.2 Appliance is to be tested at room temperature
in the "ON" position within five seconds after energiz-
ing (switch S1" closed).anci again after reaching t Ier-
nral equilibrium.
4.3.3 Appliances with speed controls are to be tested
in a low, medium, and high speed position.
NOTE: It is anticipated the production tests-twill be made with
tile control in the posiilon that results in maximum leakage
current on the type test.
I References:
DALZIEL, C. F. and MANSFIELD, T. H. Effect of fre-
gthcncy on perception currents. i1L?'E Transactions, part 11,
vol 69, 1950, fi; 4.
DAL'7_.lEL, C. F. Effects of electric shock o;i man. IRE
Transactions on;llcdica! Electronics, l'GM-5, July 1956, fig. 7.
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4.3.4 Motor-operated appli:uhces are to be tested
Under "no load? condlCirI':s.
- 4.3.5 la: aging and cooking appliances are to be oper-
ated at max mum heat setting of controls.
4.4 Test Eill! ipm'ent
4.4.1 Leakage current test circuit as shown in Fig. 1
will be used.
4.4.2 Meter as outlined in 4.2.1 will be used..
5 T st ce~?-dure
4.5. i Connect Dieter for test in position o,f l'ig. 1.
i,t[uiiG._..Z f)' w~.GJJI Vit: GAIJ :i.Cu
:.3.L cull 3f.
conductive surfaces of appliance togr_tller and connect
through meter to neutral conductor.
NOTE 1: Leakage current bet een conductive surfaces may
require consideration with some products, for example, elec-
tronic equipment.
NOTE 2: The design of a specific type of.appliance might call
for a modification of this test method in the product standard.
4.5.3 With switch "Si" open, adjust input voltage to
120 volts ac.
4.5.4 Test appliance as received connected to one
side of the line, switch "S1" open, all appliance switches
It ON. 4.5.4.1 With switch "S2" in the "A" position,
note meter reading. -_-
4.5.4.2 Repeat 4.5.4.1 with switch "S2" in the
"B" position.
4.5.5 Test appliance as received, connected to both
NE t) T : AL
CONDUCTOR
sides of the liix:, switch "Sclosed, all appliance
switches ON, and input voltage adjusted to 120
volts ac.
Repeat 4.5.4.1 and 4.5.4.2 within five seconds after
ap m- lice is tinned "1ON.'' In the i~a~:e of nun aursli:hnce
with snore than one speed, repeat for a low, medium,
and high speed.
4.5.6 Test appliance after thermal stabilization.
Operate appliance until thehmad stabilization is
reached and repeat per 4',-.5.5.
NOTE: Votor o; .toted p lioness are to he oi:crated at "no
lad" cci:ar: -u .`'lc ti: nd _c:.ol:ing pp': noes , rc to he
operated at maximum heat setting of controls, unless otherwise
specified in a separate standard for the appliance.
5. Revision of American National Standards
Refe1'red to in 4'h s Document
Fig. I
Circuit fox Leakage Current Test
1 -'
GROUND
O EN
APPLIAt' CE
When the following standards referred to in this docu-
ment are superseded by a revision approved by the
A.t1leIlcan National Standards institute, the revision
shall apply- .
American National Standard Dimensions of Plugs and
Receptacles-Gen: ral Purpose: 125 Volts, 15 Amperes,
2 Pole, 3 Wire, Grounding Type, C73.1 1-1966
American National Standard Dimensions of Plugs and
Receptacles-General Purpose: 125 Volts, 20 Amperes,
2 Pole, 3 Wire, Grounding Type, C73.12-1966
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 Declassified in Part - Sanitized Copy Approved for Release 2012/11/01: CIA-RDP79B00873A000100010052-6
The standard in this book o is n;no of F ? . o e to date
.. ,. .. !~
;rl-rov-d -o date
by the American National Standards Institute, formerly the USA Standards In-
stitute.
The Standards Institute provides the machinery for creating voluntary stan-
dards. It serves to eliminate duplication of standards activities and to weld con-
flicting standards into single, nationally accepted standards under the designa-
tion "American National Standards."
Each standard represents general agreement among maker, seller, rind user
groups as to the best current practice with regard to some specific problem. Thus
the completed standards cut across the whole fabric of production, distribution,
and consumption of goods and services. American national Standards, by reason
of Institute procedures, reflect a national consensus of manufacturers, consum'ers,
crnd scientific, technical, and professional organizations, and governmental agen-
cies. The completed standards are used widely by industry and commerce and
often by municipal, state, and federal governments.
The Standards Institute, under whose auspices this work, is being done, is the
United States clearinghouse and coordinating body for standards activity on the
national level. It is a federation of trade associations, technical societies, profes-
sional groups, and consumer organizations. Some 1,000 companies are affiliated
with the Institute as company members.
The American National Standards Institute is the Unites! Stales member of the
International Organization for Standardization (ISO), the International Electra-
technical. Commission (IEC), and the Pan American Standards Commission
(COPANT). Through these channels American industry makes its position felt on
the international level. American National Standards are on file in the libraries
of the national standards bodies of more than 50 countries.
I nerl??tt Ngt onai S',-1j1-1,-"-1- Ri2S -t:,iO, ? c
I "130 Ycfh, m. 'v. -10-J13
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 0 1 CC/-DCT ri /InurIrNC-ITIAI r1 I I-In111YSA4irn
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CONTRACT NO.
TASK NO.
CONTRACT INSI''? ON REPORT
25X1
TO:,*'
111 Jere I
CONTRACT ADMINISTRATION & SETTLEMENT
INSPECTION REPORT NO. (If final, so state)
BRANCH/PD/OL
Ptnn:lt
ESTIMATED COMPLETION DATE
P October ': 7
NAME OF CONTRACTOR
25X1
. .1o ? u -.st-tea,. t. o tr t
THE CONTRACTOR IS ON SCHEDULE
THE CONTRACTOR WILL PROBABLY REMAIN WITHIN ALLOCATED
FUNDS E)CYES O NO IF ANSWER IS "NO" ADVISE REC-
OMMENDATION AND/OR ACTION OF SPONSORING OFFICE. ON
REVERSE HEREOF. IF KNOWN, INDICATE MAGNITUDE OF AD-
PER CENT OF WORK COMPLETED -
DITIONAL FUNDS INVOLVED.
PER CENT OF FUNDS EXPENDED -
HAS AN INTERIM REPORT. FINAL REPORT, PROTOTYPE, OR OTHER END ITEM BEEN RECEIVED FROM THE CONTRACTOR
DURING THE PERIOD? a YES [] NO (If yes, give details on reverse side.)
r~~~
HAS GOVERNMENT-OWNED PROPERTY BEEN DELIVERED TO CONTRACTOR DURING THIS PERIOD? ^ YES ED NO
?
~
~
~~
(If yes, indicate items, quantity, and cost on reverse side.) ?
INCENTIVES
IS THIS AN INCENTIVE CONTRACT YES 0 NO
NOTE:
IF YES. CHECK TYPE
USE REVERSE SIDE FOR COMMENTS.
RD PERFORMANCE ^ DELIVERY
COST 0
FINAL REPORT MUST CONTAIN INCENTIVE EVALUATION.
FEE
OVERALL PERFORMANCE OF CONTRACTOR
1. ^ OUTSTANDING 4. ^ ABOVE AVERAGE 7. ^ UNSATISFACTORY
2. ? EXCELLENT 5. ^ AVERAGE
3. ^ VERY GOOD 6, ^ MINIMUM ACCEPTABLE
IF OVERALL PERFORMANCE OF CONTRACTOR IS UNSATISFACTORY OR MINIMUM ACCEPTABLE INDICATE
REASONS ON REVERSE SIDE.
RECOMMENDED ACTION
^ CONTINUE AS PROGRAMMED ^ WITHHOLD PAYMENT PENDING
SATISFACTORY PERFORMANCE
TERMINATE ^ OTHER (Specify)
IF TERMINATION IS RECOMMENDED OR IF THIS IS A FINAL REPORT PUT COMMENTS ON REVERSE IN NARRATIVE
FORM ON CONTRACTOR'S PERFORMANCE AND CERTIFY THAT ALL DELIVERABLE ITEMS UNDER THE CONTRACT HAVE BEEN
RECEIVED. THESE INCLUDE, WHERE APPLICABLE, THE FOLLOWING:
ITEM
RECD
DOES NOT
ITEM
RECD
DOES NOT
APPLY
APPLY
PROTOTYPES
MANUALS
DRAWINGS AND SPECIFICATIONS
FINAL REPORT
PRODUCTION AND/OR OTHER
SPECIAL TOOLING
END ITEMS
OTHER GOVERNMENT PROPERTY
DATE OF LAST C
NTACT WITH CONTRACTOR
O
It JI wt . , 1968
SIGNATURE OF INSPECTOR
DIVISION
TMA0 25X1
INSPECTOR'S EXTENSION
SIGNATURE OF APPROVER
e25X1
FORM Q USE
8-66 189] ? EPREVOU DITIONS
^ UNCLASSIFIED [:1 CONFIDENTIAL 2] SECRET
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 Declassified in Part - Sanitized Copy Approved for Release 2012/11/01: CIA-RDP79B00873A000100010052-6
0 INTERIM
9 FINAL
Q UNCLASS IF IED Q CQNF IDENT I,AL' ? SECRET
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