Electrical Safe

8/13/2019 Electrical Safe

1/94

1 February 2013

UNCLASSIFIED

Safety

The Army Electrical Safety Pro ram

SU!!A"#DA PA! 3$%&2'

The Army Electrical Safety Pro ram

Thi( i( a )e* De+artme)t of the Army +am+hlet, -ate- 1 February2013&

* This pamphlet introduces the Army Electrical Safety Program.

*

Cha+ter 1.e)eral I)formatio)

1&1/ Pur+o(e

The purpose of this pamphlet is to provide electrical safety guidance to

protect Army personnel, facilities, and equipment against electricalhazards. This includes unqualified personnel that use electrical servicesand appliances in administrative buildings, living in military quartersand or qualified personnel that conduct electrical !or".

1&2/ Sco+e


2/94

This pamphlet applies to all #epartment of the Army $#A% personnel,including military, civilian, and contractors for safeguarding against thehazards associated !ith electrical energy. #esign of electrical systems,!or"place safety, and safety requirements for special electricalequipment !ill be in compliance !ith Title &', (ode of )ederal

egulations, +'+ Subpart S $&' () +'+ S%- Engineer anual /012+2+-3nified )acilities (riteria $3)(% 42 &+2 +- Technical 5ulletin /0124 - 3)(/216 2 +- 7ational )ire Protection Association $7)PA% 8 $7ationalElectric (ode9 $7E(%% - and 7)PA 8 E , as applicable. This pamphlet!ill highlight procedures and !or" practices routinely used in Armyfacilities, !or"places, and recreational and contingency operations.:o!ever, local commanders are responsible for establishing electricalsafety programs to protect Army personnel, facilities, and equipment intheir area of responsibility.

1&3/ Sta)-ar- o+erati) +roce-ure(

;ritten standard operating procedures $S


3/94

a. Qualified person. Personnel that have been trained, in theclassroom or on2the2=ob or a combination of the t!o, in emergencyprocedures- proper use of special precautionary techniques- properprotective equipment- determining nominal voltage- approach distances-and determining degree and e?tent of hazard $see 7)PA 8 E , paragraph++ .6%.

b. Unqualified person. Personnel that are not qualified electrical!or"ers !ill be trained in and be familiar !ith any of the electrical safetyrelated practices that might occur routinely in their !or" area. Allpersonnel !ill receive training on general electrical related proceduresand hazards and precautions in their !or"place.

1&'/ Electrical )ear mi((e( a)- ha ar- re+orti)

Electrical near misses, to include po!er surge, repetitive circuit brea"eractivations $see note belo!%, tripped ground fault circuit interrupter$B)(C%, and observed electrical hazards such as do!ned !ires, damagedfi?tures, missing guards, and frayed !iring !ill be reported immediately tothe immediate supervisor and the local safety office. These incidents !illbe investigated to determine cause and !ill identify, at a minimum, anydesign or systemic problems or issues, personnel qualifications,equipment malfunctions, and if any procedures !ere missed or violated.

eport this information to the safety office having =urisdiction.Note. Shoc"s and minor electrical burns are mishaps and must be reported immediately to the

supervisor.

1&4/ Authority ha5i) 6uri(-ictio)

(ommanders !ill appoint an authority having =urisdiction $A:D% forelectrical matters. The A:D is an organization, office, or individualresponsible for approving equipment, materials, an installation, or aprocedure. (ommanders may use the A:D appointed by the installationor higher headquarters.

1&$/ Electrical (afety +ro ram( e5aluatio) au-it( a)- i)(+ectio)(Electrical safety programs !ill be evaluated as a ma=or element of theStandard Army Safety and


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1&7/ "i(8 ma)a eme)t

An approved ris" management !or"sheet !ith =ob hazard analysis isrequired in all electrical related operations. A ris" assessment !ill bedeveloped in all electrical related operations before !or" is started !ithinthe limited approach boundary or arc flash boundary of energizedelectrical conductors and circuit parts operating at 1 volts $ % or more or!here an electrical hazard e?ists. Appropriate control measures !ill beimplemented prior to start of !or". Dob hazard analysis !ill be developedfor all !or"ers !or"ing !ithin limited approach boundary or arc flashboundary of energized electrical conductors and circuit parts operating at1 or more or !here an electrical hazard e?ists.

Cha+ter 2Electrical Safety for All ArmyActi5itie(

2&1/ .e)eral re uireme)t(

The follo!ing !ill apply to all !or"places, including military quarters andfield locations

a. 3nqualified personnel !ill not conduct any electrical !or" and !illnot approach unprotected energized parts, including po!er lines. Seeparagraphs /20 through /2+ for specific distances.

b. All electrical equipment used in Army !or"places !ill be listed by a7 TF or inspected and approved by the A:D.

c. ilitary equipment released to the field under the auspices of A8 2+4& !ill be considered as equivalent to 7 TF2listed equipment.

d. All equipment !ill be used in accordance !ith the listing.

e. All equipment !ill be used in accordance !ith manufacturer@sinstructions or technical manuals.

f. aintenance !ill be performed on electrical equipment inaccordance !ith manufacturer@s instructions and technical manualinstructions.
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-10http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-10http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142


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h. #o not use staples or nails to attach e?tension cords to a baseboardor to another surface. This could damage the cord and present a shoc" orfire hazard.

i. Ensure appliances are used !ith cords that are rated at or above thecurrent and voltage need by the appliance.

j. 3se only three2!ire e?tension cords for appliances and po!er tools!ith three2prong plugs. 7ever remove the third $round or 32shaped%grounding prong, !hich is a safety feature designed to reduce the ris" ofshoc" and electrocution. 7ever use adaptors designed to defeat thegrounding connection. )le?ible cord used !ith grounding type equipment!ill contain an equipment grounding conductor.

Fi ure 2&1/ E9am+le of a (uitable e9te)(io) cor-

k. (hec" ne! cords to ma"e sure they are listed by a 7 TF.

l. ;hen using outdoor tools and appliances, use only e?tension cordslabeled for outdoor use and protected by a B)(C device.

m. 7ever repair electrical cords.

n. Stringing of e?tension cords $daisy chain or splitting% or going fromone cord to several $tree branching% is prohibited unless approved bylocal safety authority.


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o. 3se po!er strips only for lo! amperage equipment such ascomputer monitor, fan, computer, printer, and so forth and they !ill not bedaisy chained. #o not plug e?tension cords into plug strips.

p.


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9/94

g. B)(C2protected receptacles !ill be installed in all potentially !etlocations $for e?ample, restrooms, outdoors, pools, spas, garages, sin"sof any type, and so forth% and indoor outlets that serve these locations$see 7)PA 8 $7E(% , Section &+ .0%.

h. Properly identify and label all B)(C receptacles.

i. Cmmediately discontinue use of a receptacle outlet that is too hot$see fig &2&%.


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Fi ure 2&2/ :ot rece+tacle outlet ;-i(co))ect a++lia)ce imme-iately


11/94

Fi ure 2&3/ I)correct metho- for u)+lu i) cor-(

2&'/ .rou)- fault circuit i)terru+ter(

a. B)(Cs !ill be used !here po!er outlets are required in damp or !etlocations and !ithin 6 feet $ft% $+.0/ meters $m%% of a !ater source. B)(Csare required for po!er outlets !here live maintenance !or" is performedon cord2 and plug2connected equipment $see app ( for details on B)(Cs%.

$+% erification of correct installation of B)(Cs is required.


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a! )irst, plug "no!n !or"ing electrical equipment, such as alamp or a radio, into the B)(C outlet, turn it on, and verify that it operates$receives po!er%.

b! Then, press the Push2to2Test button on the receptacle. erifythat the equipment turns off and remains off, indicating that po!er hasbeen removed.

c! )inally, press the eset button on the B)(C. erify that theequipment operates.

$&% Cf pressing the Push2to2Test button does not interrupt po!er tothe equipment, as" the installation or facility electrician to chec" to see ifthe B)(C is correctly !ired. Cn addition to this initial test, the Push2to Testbutton !ill be tested monthly.

b. Periodic testing !ith a B)(C tester is recommended to ensure theB)(C is functioning at the correct current levels. eplace defective B)(Creceptacles.

c. All cord2 and plug2connected electrical equipment and po!er tools,as !ell as e?tension cords and plug strips, !ill be protected by a B)(C. Aportable B)(C !ill be used !hen a permanently installed B)(C receptacleis not available.

2&4/ Portable electric heater(

The local command !ill establish a policy on portable electric heaters.Portable electric heaters are high2!attage appliances that have thepotential to overload circuits and or cords or ignite nearby combustiblematerials li"e curtains, beds, sofas, paper, clothing, and flammableliquids. Cf ignition results from a heater left on and unattended, a ma=or firecould result.

a. 7ever operate a heater suspected of being damaged. 5efore use,

inspect the heater, cord, and plug for damage. )ollo! all operation andmaintenance instructions or visit http !!!.recalls.gov to see if thatmodel of electric heater has been recalled. Also visit the (onsumerSafety Product Services ;eb site at http !!!.cpsc.gov for additionalinformation.


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b. 7ever leave the heater operating !hile unattended or !hilesleeping.

c. Geep combustible material such as beds, sofas, curtains, papers,and clothes at least / ft $ .' m% from the front, sides, and rear of theheater.

d. 5e sure the heater plug fits tightly into the !all outlet. Cf not, do notuse the outlet to po!er the heater.

e. #uring use, chec" frequently to determine if the heater plug or cord,!all outlet, or faceplate is hot. Cf so, discontinue use of the heater andhave a qualified electrician chec" and or replace the plug or faulty !alloutlet$s%. Cf the cord is hot, disconnect the heater, and have it inspectedand or repaired by an authorized repair person.

f. 7ever po!er the heater !ith an e?tension cord or po!er strip.

g. Ensure that the heater is placed on a stable, level surface, andlocated !here it !ill not be "noc"ed over.

h. Al!ays "eep electric heaters a!ay from !ater, and never touch anelectric heater if s"in or clothing is !et.

i. Cn older buildings, consult !ith supporting facility electricians to

determine if the building !iring can support the additional load of portableelectric heaters.

2&$/ Po*er li)e(

a. "owned electrical wires. Note. Everything is assumed to be energized until tested and confirmed to be de2energized. )allen po!er lines $even if they are not spar"ing or humming% can"ill if touched, or even the ground nearby is touched. #o!ned !ires canenergize other ob=ects, including fences, !ater pipes, bushes and trees,

buildings, telephone cable television fiber optic cables, man2holecastings, reinforcement bars in pavement, and other electric utilities.#uring storms, do!ned !ires can also energize !ind2blo!n ob=ects suchas canopies, aluminum roofs, siding, sheds, and so forth. 5e cautious andcontact appropriate utility personnel if do!ned !ires or damagedelectrical equipment are observed. (ircuits do not al!ays turn off !hen apo!er line falls into a tree or onto the ground.


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$+% #o not assume that a do!ned conductor is safe simply becauseit is on the ground or is not spar"ing.

$&% #o not assume that all coated, !eatherproof, or insulated !ire is =ust telephone, television, or fiber2optic cable. Test it to ensure it is not livebefore touching it.

$/% Fo!2hanging !ires still have voltage potential even if they arenot touching the ground. #o not touch them.

$4% 7ever drive over do!ned po!er lines. Assume that they areenergized. Cf they are not energized, do!ned lines can still becomeentangled in equipment or vehicles and cause damage or in=ury. Cf contactis made !ith an energized po!er line !hile in a vehicle, remain calm anddo not get out unless the vehicle is on fire. Cf possible, call for help.

$1% Cf e?iting a vehicle is required because of fire or other life2threatening hazards, =ump clear of the vehicle !ithout touching any part ofit and the ground at the same time. Dump as far as possible a!ay fromthe vehicle, shuffle a!ay !ith both feet on the ground, or hop a!ay, !ithboth feet landing on the ground at the same time. #o not run a!ay fromthe vehicle as the electricity forms rings of different voltages. unningmay cause legs to HbridgeH current from a higher ring to a lo!er voltagering. This could result in a shoc". Bet a safe distance a!ay.

b. #verhead power lines.

$+% Ctems caught in or contacting overhead lines may be energizedand dangerous. #o not attempt to remove. eport to the utility service.

$&% 3se e?treme caution !hen !or"ing, placing, and or movingitems $for e?ample, ladders, poles, tree trimming equipment, and so forth%near po!er lines $see para /20 for specific distance requirements%.

Cha+ter 3Electrical =or8+lace Safety"e uireme)t(

3&1/ I)tro-uctio)
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8


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This section focuses on protection of unqualified and qualified personnel!or"ing in !or"places !here electrical !or" is conducted. This electrical!or" includes !or" performed on the facility distribution system, onelectrical utilization equipment, or on overhead lines.

3&2/ E)er i e- *or8

;here ever possible, de2energize electrical circuits and equipment.Energized !or" !ill not be conducted unless it is determined that de2energization is not possible. An Energized Electrical ;or" Permit $EE;P%must be completed and de2energized !or" must be authorized by the

A:D prior to commencement. The EE;P !ill be designed by localcommand as an element of the (ommand Electrical Safety Program, toinclude local EE;P procedures.

3&3/ ualifie- +er(o))el


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;henever !or" involves accessing energized parts, the qualified personin charge !ill conduct a =ob safety briefing !ith the personnel performingthe !or".

a. The =ob safety briefing !ill address, at a minimum J

$+% :azards associated !ith the !or".

$&% Procedures involved in the !or".

$/% Any special precautions required to maintain electrical safety.

$4% (ontrol of energy sources.

$1% PPE and clothing required for the !or".

$6% Focation of emergency and or first aid equipment.

$8% Emergency call number and procedures.

$0% oltage of circuits and equipment.

$'% Shoc" hazard boundaries.

$+ % Arc flash energy.

$++% Arc flash protection boundary.

$+&% Focation and procedure for emergency po!er disconnect.

b. )or routine !or", a brief discussion !ill meet the requirement if theemployee, due to training and e?perience, can reasonably be e?pected torecognize and avoid the hazards involved in the =ob. Additional =obbriefings !ill occur if any one of the follo!ing conditions e?ists

$+% 7e! and unfamiliar !or".

$&% Performed infrequently.

$/%


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$1% (omplicated !or" or incurs ne! electrical hazards.

$6% ;or"er cannot be e?pected to recognize and avoid the hazardsinvolved in the =ob $in particular, this may apply to ne!ly assignedpersonnel%.

3&'/ Co)trol of ha ar-ou( e)er y

a. $ockout and%or tagout. Each employer !ill document and implementloc"out and or tagout procedures to safeguard employees from in=ury!hile they are !or"ing on or near de2energized electric circuits andequipment. The loc"out and or tagout procedures !ill meet therequirements of #A Pam /012+ $see loc"out and or tagout%- 7)PA 8 E ,(hapter +, Article +& - and &' () +'+ .+48$c% through $f%, +'+ .&6'$d%through $m%, +'+ .///- and &' () +'&6.4+8 $see fig /2+ %.
http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=Pam%20385-10http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70Ehttp://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#fig3-1http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=Pam%20385-10http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70Ehttp://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#fig3-1


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Fi ure 3&1/ E9am+le of ta a)- loc8 u(e- for loc8i) out e ui+me)t

b. "e&energization. The first choice in performing electrical !or" is toremove the electrical hazard, or de2energize equipment. #e2energization


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!ill be the preferred method of establishing electrical safety and !or"ingon electrical equipment. #e2energization procedures !ill include J

$+% #etermining all possible sources of electrical energy.

$&%


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a. $imited approach boundary. The boundary is to protect unqualifiedpersonnel $not performing !or" on e?posed energized electrical circuitsabove 1 and untrained in such !or"% from a shoc" hazard.

$+% 3nqualified personnel may not approach energized e?posedelectrical parts or bring conductive ob=ects !ithin + ft $/ m% or thedistance as dictated by follo!ing table /2+ . Cf approach !ithin thesedistances is required, a qualified person !ill be notified to de2energize theparts or appropriate PPE or temporary insulating barriers !ill be utilized.

$&% ;arning signs or temporary barriers !ill be installed in areas!here energized electrical parts are e?posed. 3nqualified persons !ill beescorted by a qualified person !ithin this area. Cn maintenance shops,!here e?posed energized parts are commonly encountered, permanentsigns affi?ed to all entrances to the shop area !ill meet the signagerequirement. ;arning signs !ill be orange and blac" !ith a !arning forareas that have e?posed voltages from 1 to 6 , in accordance !iththe American 7ational Standards Cnstitute $A7SC% K1/1.4. Areas that havee?posed voltages e?ceeding 6 !ill be posted !ith red, !hite, andblac" #A7BE signs. The sign !ill read H#anger2 :igh oltage2Geep


21/94

Over 242kV, not over 362kV 15 ft 4 in (4.68 m) 15 ft 4 in (4.68 m)



#otes$1. a!le taken from "#$% 70&, 2012&dition.

2. #or sin'le *ase s+stems, sele t t*eran'e t*at is e- al to t*e s+stem/sma im m *ase to 'ro nd volta'em lti lied !+ 1.732.

3. % ondition in *i * t*e distan e !et een t*e ond tor and a erson is not

nder t*e ontrol of t*e erson. *e termis normall+ a lied to over*ead line

ond tors s orted !+ oles.

4. *e follo in' a!!reviations areintrod ed in t*is *art kV (kilovolt) andin (in *).

b. 'estricted approach boundary. The boundary is to protect qualifiedpersonnel !or"ing near e?posed electrical circuits above 1 frominadvertent contact !ith those circuits.

$+%


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m)

Over 121kV, not over 145kV 3 ft 10 in (1.168m)

Over 145kV, not over 169kV 4 ft 3 in (1.295

m)Over 169kV, not over 242kV 5 ft 8 in (1.727

m)

Over 242kV, not over 362kV 9 ft 2 in (2.794m)

Over 362kV, not over 550kV 11 ft 10 in(3.607 m)

Over 550kV, not over 800kV 15 ft 11 in(4.852 m)

#otes$1. a!le taken from "#$% 70&, 2012 &dition.

2. #or t*e r ose of t*is ta!le, no - alified erson ill a roa * or take an+ond tive o! e t, tool, and so fort*, it*in t*e minim m a roa * distan e. *ere

ele tri al meas rements of ener'i ed e- i ment is re- ired, ins latin' om onentsof test e- i ment ill !e onstr ed as meetin' t*e avoid onta t.

2. *e follo in' a!!reviation is introd ed in t*is *art mm (millimeter).

$&% The minimum approach requirement for under / is in table /2&, provided the test equipment is rated for that voltage. equirements for

PPE and voltage rated gloves are determined by an arc flash and shoc"hazard analysis, and may be required.

c. (rohibited approach boundary. The boundary is to protect !or"ingqualified personnel from contacting an uninsulated body part to anenergized electrical circuit $see table /2/ %.

$+% :azard and or ris" analysis must be performed to determineinsulated protective equipment $rubber insulating gloves !ith leatherprotectors, rubber insulating blan"ets, and so forth% and insulated and or

insulating hand tools required !ithin this boundary.

$&%7)PA 8 E defines protective equipment based on the electricalequipment being !or"ed on and the type of !or" performed. )or !or"meeting those definitions, PPE specified in 7)PA 8 E can be usedprovided !ritten documentation $for e?ample, local S


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guidelines, and so forth% references the appropriate table and definitionthat defines !or" being performed.

Table 3-3. Limited approach boundary 1

Voltage range (phase to phase) prohibiteddistance

'rohibited distance (at or less thanstated distance)

300V and less %void onta t

Over 300V, not over 750V 0 ft 1 in (25.4 mm)

Over 750V, not over 15kV 0 ft 7 in (177.8 mm)

Over 15kV, not over 36kV 0 ft 10 in (254 mm)

Over 36kV, not over 46kV 1 ft 5 in (431.8 mm)

Over 46kV, not over 72.5kV 2 ft 2 in (661 mm)

Over 72.5kV, not over 121kV 2 ft 9 in (838 m 2 )

Over 121kV, not over 145kV 3 ft 4 in (1.016 m)






#otes$

1. a!le taken from "#$% 70&, 2012 &dition.2. *e follo in' a!!reviation is introd ed in t*is

*art m ( entimeter).

d. )rc flash boundaries. Arc flash hazards are possible on electricalsystems and equipment rated & 0 , three2phase, or more, if !or" isconducted on energized electrical conductors or circuit parts, !hile aperson is interacting !ith the electrical equipment $opening or closingcircuit brea"ers and disconnect s!itches or rac"ing po!er circuit brea"ersout of or into a cubicle%, and during the process of establishing an

electrically safe !or" condition $loc"out tagout%. An arc flash can occur!hen electrical parts are shorted, or may occur !hen the electricalequipment fails due to improper or inadequate maintenance, !here theresulting arc produces an intense flash of ultraviolet light, a radiant energy$incident energy%, a shoc" !ave from the arc, and a spray of molten metalfrom the superheated metal parts. Cn general, arc flash hazards areprevalent on po!er circuits and equipment energized at & 0 , three2


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phase or more. An arc flash boundary can e?ceed the shoc" hazardapproach distances for qualified personnel and, in some cases,unqualified !or"ers. ;here an arc flash hazard analysis has not yet beencompleted, the requirements of 3)( /216 2 +, (hapter 4, !ill be used todetermine the proper arc flash PPE. An arc flash hazard analysis !ill beconducted in accordance !ith the requirements of 7)PA 8 E . (ontactthe installation and or organization safety office for technical assistance, ifneeded.

$+%*aintenance. aintenance of electrical protective devices$circuit brea"ers, protective relays, and so forth%, according to themanufacturer@s instructions, is required in order to maintain safe, reliableelectrical equipment and systems. Cmproper maintenance can have adramatic impact on arc flash energy $see 7)PA 8 E , Sections +/ .1 and& 1./% This generally is not the case for maintenance and testing ofelectronic equipment, even those having higher voltages, because thepossible current is limited.

$&%#perating conditions. 3nder normal operating conditions,enclosed energized electrical conductors or circuit parts of equipment thatare properly installed and maintained are less li"ely to pose an arc flashhazard. 5erhea- li)e(

Cf !or" is to be performed near overhead lines, the lines !ill be de2energized and grounded, or other protective measures !ill be providedbefore !or" is started. Cf the lines are to be de2energized, arrangements!ill be made !ith the person or organization that operates or controls theelectric circuits involved to de2energize and ground them. Cf protectivemeasures, such as guarding, isolating, or insulating are provided, theseprecautions !ill prevent employees from contacting such lines directly!ith any part of their body or indirectly through conductive materials,tools, or equipment.

a. Unqualified persons.

$+% ;hen an unqualified person is !or"ing in an elevated positionnear overhead lines, the location !ill be such that the person and the
http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70Ehttp://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA%2070Ehttp://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70Ehttp://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA%2070E


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longest conductive ob=ect he or she may be handling cannot come closerto any unguarded, energized overhead line than the follo!ing distances

a! )or voltages to ground 1 " or belo! 2 + ft $/ 1 cm%.

b! )or voltages to ground over 1 " 2 + ft $/ 1 cm% plus 4 in$+ cm% for every + " over 1 " .

$&% ;hen an unqualified person is !or"ing on the ground in thevicinity of overhead lines, the person may not bring any conductive ob=ectcloser to unguarded, energized overhead lines than the distances given insubparagraphs $+%$a%and $b%, above.Note. )or voltages normally encountered !ith overhead po!er lines, ob=ects !hich do not have aninsulating rating for the voltage involved are considered to be conductive.

b. Qualified persons. ;hen a qualified person is !or"ing in the vicinityof overhead lines, !hether in an elevated position or on the ground, theperson may not approach or ta"e any conductive ob=ect !ithout anapproved insulating handle closer to e?posed energized parts than sho!nin table /24 unless J

$+% The person is insulated from the energized part $gloves, !ithsleeves if necessary, rated for the voltage involved are considered to beinsulation of the person from the energized part on !hich !or" isperformed%- or

$&% The energized part is insulated both from all other conductiveob=ects at a different potential and from the person- or

$/% The person is insulated from all conductive ob=ects at a potentialdifferent from that of the energized part.

Table 3- . pproach distances "or &uali"ied employees * alternating current 1

Voltage range (phase to phase) !inimum approach distance

300V and less %void onta t

Over 300V, not over 750V 1 ft 0 in (30.5 m)

Over 750V, not over 2kV 1 ft 6 in (46 m)

Over 2kV, not over 15kV 2 ft 0 in (61 m)


Over 37kV, not over 87.5kV 3 ft 6 in (107 m)
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#s33-9a(1)(a)http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#s33-9a(1)(b)http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tab3-4http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#s33-9a(1)(a)http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#s33-9a(1)(b)http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tab3-4


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Over 87.5kV, not over 121kV 4 ft 0 in (122 m)


#otes$1. a!le taken from "#$% 70&, 2012 &dition.

c. +ehicular and mechanical equipment.

$+% Any vehicle or mechanical equipment $cranes, man lifts,uninsulated buc"et truc"s, bac"hoes, dump truc"s, and so forth% capableof having parts of its structure elevated near energized overhead lines !illbe operated so that a clearance of + ft $/ 1 cm% is maintained. Cf thevoltage is higher than 1 " , the clearance !ill be increased 4 in $+ cm%for every + " over that voltage. :o!ever, under any of the follo!ingconditions, the clearance may be reduced

a! Cf the vehicle is in transit !ith its structure lo!ered, theclearance may be reduced to 4 ft $+&& cm%. Cf the voltage is higher than1 " , the clearance !ill be increased 4 in $+ cm% for every + " overthat voltage.

b! Cf insulating barriers are installed to prevent contact !ith thelines, and if the barriers are rated for the voltage of the line being guardedand are not a part of or an attachment to the vehicle or its raisedstructure, the clearance may be reduced to a distance !ithin the designed!or"ing dimensions of the insulating barrier.

c! Cf the equipment is an aerial lift insulated for the voltageinvolved, and if a qualified person performs the !or", the clearance$bet!een the uninsulated portion of the aerial lift and the po!er line% maybe reduced to the distance given in table /24 .

$&% Employees standing on the ground may not contact the vehicleor mechanical equipment or any of its attachments unless J

a! The employee is using protective equipment rated for thevoltage- or

b! The equipment is located so that no uninsulated part of itsstructure $that portion of the structure that provides a conductive path toemployees on the ground% can come closer to the line than permitted insubparagraphs $+%$a%and $b%, above.
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$/% Cf any vehicle or mechanical equipment capable of having partsof its structure elevated near energized overhead lines is intentionallygrounded, employees !or"ing on the ground near the point of groundingmay not stand at the grounding location !henever there is a possibility ofoverhead line contact. Additional precautions, such as the use ofbarricades or insulation, !ill be ta"en to protect employees fromhazardous ground potentials, depending on earth resistivity and faultcurrents, !hich can develop !ithin the first fe! ft or more out!ard fromthe grounding point. Employees !ill !ear appropriate PPE and protectiveclothing to protect them from hazards of high2voltage apparatus.Employees authorized or required to !or" on high2voltage systems !ill becompletely familiar !ith the PPE and protective clothing they need foradequate protection !hile !or"ing on such systems $refer to applicablestandards in app B for suggested types of PPE and protective clothing%.

d. ,actical equipment.

$+% Tactical equipment may have additional precautions. (hec"technical manuals before use.

$&% Tactical antenna masts usually require clearance of t!ice theheight of the mast for clearance from po!er lines and other energizedparts.

3&10/ Li)ema) a)- (imilar electrical *or8er(


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There !ill al!ays be a minimum of t!o qualified linemen !or"ing at thesame location.

b. Finemen must also be able to demonstrate competency !hen!or"ing at elevated or underground conditions. >ualifications !ill includefall arrest training, harness selection and use, confined space rescuetraining, and pole rescue training. (ommands are permitted to requireadditional training such as to!er line safety, high voltage maintenancesafety, and so forth.

c. Finemen !ill meet appropriate physical and medical suitabilityrequirements as determined by the local command and the A:D.

d. Finemen !ill be provided !ith PPE appropriate to their tas"s asdetermined by the local command and A:D.

e. Electrical !or"ers and or linemen !ill be trained for confined spaceentry, as appropriate.

3&11/ =ar)i) a)- alerti) tech)i ue(

The follo!ing !arning and alerting techniques !ill be used to !arn andprotect employees from hazards !hich could cause in=ury due to electricshoc", burns, or failure of electric equipment parts

a. Safety signs, safety symbols, or accident prevention tags !ill beused to !arn employees about electrical hazards !hich may endangerthem. Appropriate !arning signs !ill also be posted in areas !here otherhazards are "no!n to e?ist. ;arning signs may be required in the vicinityof to?ic fumes, high2intensity visible light, L2ray producing equipment,laser devices, radio frequency equipment, and radioactive materials.

b. 5arricades !ill be used in con=unction !ith safety signs to prevent orlimit employee access to !or" areas e?posing employees to uninsulated,energized conductors, or circuit parts. (onductive barricades may not be

used !here they might cause an electrical contact hazard.

c. Cf signs and barricades do not provide sufficient !arning andprotection from electrical hazards, an attendant !ill be stationed to !arnand protect employees.

3&12/ E ui+me)t Safety


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)aulty electrical equipment or equipment misuse has been the cause ofmany fires, in=uries, and deaths. Cn fact, electrical fires are the numberone cause of fire in the !or"place.

a. ;hen using electrical equipment, a !or"er is protected primarily byengineering controls $design features% that prevent the !or"er from beinge?posed to the hazard. The !or"er needs no special !or" controls orprotective equipment.

b. ;hen engineering controls are absent, or removed, the !or"er mustbe protected by administrative controls, including training, !or" controlsuch as a S


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:ealth Administration or the Army as a 7 TF. Ct is a self2certification bythe party !ho puts the product on the mar"et in the E3 $for e?ample, anE32based manufacturer, the importer, or distributor of a product madeoutside the E3, or an E32based office of a non2E3 manufacturer%. Allelectrical equipment mar"ed !ith (E is considered unlisted and must beinspected, approved, and labeled safe for use by the A:D prior to use.

e. 7 TF2listed equipment must be purchased and used if available,even if a less e?pensive unlisted product is available. Equipment thatappears to be of significantly lo!er cost, is a seasonal product, or isforeign made may have a counterfeit listing. ;hen in doubt, visit themanufacturer@s ;eb site for confirmation.

f. All equipment inspected and approved by the A:D must be labeled!ith name of inspector and date. Cf a representative sample of t!o unitsthat are built identically are inspected and approved, the remainder maybe assumed to be comparable and put into use follo!ing a visual e?ternalinspection.

g. All contractors and subcontractors are responsible for the electricalequipment they use. They must assure that the electrical equipmentbrought into an Army facility is 7 TF2listed or approved by a qualifiedelectrical e?pert.

h. All rental equipment must be 7 TF2listed or approved by the A:D,and inspected by an A:D prior to initial use.

Cha+ter Electrical =or8+lace Safety"e uireme)t(

&1/ "emo5al of co)-ucti5e ob6ect(

Personnel !or"ing near e?posed, energized electrical conductors orcircuit parts !ill remove all rings, =e!elry, !atches, and other conductiveitems before commencing !or" on energized equipment. (onductiveeyeglasses do not need to be removed. Cf a possible hazard is e?pectedfrom !earing conductive eye!ear, either nonconductive eye!ear !ill be!orn or nonconductive goggles !ill be !orn over the eye!ear.


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&2/ "e uire- +er(o))el

At a minimum, t!o qualified persons must be in the immediate area at alltimes !hen !or" is being performed on e?posed, energized electricalconductors, or circuit parts carrying 1 or more. Each qualified personmust be able to see and hear the other. This ensures that the qualifiedperson !ill be available to assist the other in case of an accident. Eachqualified person !ill "no! the location of, have unobstructed access to,and "no! ho! to operate the po!er cutoff for the !or" area, and ho! tocontact emergency personnel. ;hen hazard levels are significant, asafety !atch is required- refer to 7)PA 8 E or 3)( /216 2 + for specificrequirements.

&3/ =or8i) o) or )ear e9+o(e- +art(

Safety2related !or" practices !ill be integrated in all operations to preventelectric shoc" or other in=uries that could potentially result from eitherdirect or indirect electrical contacts !hen !or" is performed near or onequipment or circuits !hich are or may be energized. The specific safety2related !or" practices !ill be consistent !ith the nature and e?tent of theassociated electrical hazards.

a. "e&energized parts. Energized electric conductors and or circuitparts !ill be de2energized before the employee !or"s !ithin the limitedapproach boundary and or the arc flash boundary of the equipment,unless the employer can demonstrate that de2energizing introducesadditional or increased hazards or is infeasible due to equipment designor operational limitations. This decision !ill only be made by amanagement official !ith concurrence by the safety office in !riting.Energized electric conductors and or circuit parts !ith less than 1 toground do not need to be de2energized if there is no increased e?posureto electrical burns or to e?plosion due to electric arcs.Note. #o not confuse inconvenient !ith infeasible, as they are not the same.

b. -nergized electric conductors and circuit parts. Cn situations !here

e?posed, energized electric conductors or circuit parts are not de2energized because of other safety related issues $for e?ample, forreasons of increased or additional hazards or infeasibility%, other safety2related !or" practices !ill be used to protect employees that may bee?posed to electrical hazards involved. These safety2related !or"practices !ill protect employees against contact !ith energized circuitparts directly !ith any part of their body or indirectly through some other
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conductive ob=ect. The !or" practices that are used !ill be suitable for theconditions under !hich the !or" is to be performed and for the voltagelevel and or arc flash incident energy of the e?posed electric conductorsor circuit parts. ;or" practices !ill be included in EE;P.

& / Shoc8 +rotectio)

ubber insulating gloves !ill be used !hile conducting e?posed,energized electrical !or". 3se rubber insulating gloves !ith leatherprotectors !here there is a danger of hand in=ury from electric shoc" dueto contact !ith energized electrical conductors or circuit parts. 3se rubberinsulating gloves !ith leather protectors and rubber insulating sleeves!here there is a danger of hand and arm in=ury from electric shoc" due tocontact !ith energized electrical conductors or circuit parts. ubberinsulating gloves !ill be rated for the voltage to !hich the gloves !ill bee?posed $see 7)PA 8 E %.

&%/ Ta(8( re uiri) t*o ha)-(

;hen both hands are needed for such tas"s as voltage measurements,firmly grasp the insulated leads and place them on the test points. ;henmeasuring, follo! the procedures outlined belo!. 7ever !or" onenergized parts !hen hands, feet, or body are !et or perspiring or !henstanding on a !et surface.

&'/ Electrical +er(o)al +rotecti5e e ui+me)t a)- +rotecti5e clothi)

a. ;hen !or"ing around potential electrical hazards, personnel !ill beprovided !ith, and !ill use, electrical PPE and arc rated protectiveclothing that is appropriate for the specific parts of the body to beprotected and for the !or" to be performed $see fig 42+ %. Appropriateshoc" protection PPE !ill be determined by the supervisor and qualifiedemployee. Cf the incident energy and shoc" and arc flash hazard arecalculated by the A:D, determine PPE based on 7)PA 8 E. Cf not "no!nand PPE is determined by voltage and tas", refer to 3)( /216 2 +.

b. PPE and protective clothing !ill be maintained in a safe, reliablecondition and !ill be periodically inspected or tested in accordance !ithmanufacturer@s guidance. All inspections and testing !ill be documentedand maintained by the supervisor. Cf the insulating capability of PPE andprotective clothing may be sub=ect to damage during use, the insulatingmaterial !ill be protected $for e?ample, an outer covering of leather is
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sometimes used for the protection of rubber insulating material%.Employees !ill !ear arc rated clothing and PPE that can be provided asan arc flash suit $consisting of an arc flash =ac"et, pants, and hood%, arcrated shirts and pants, or as arc rated coveralls, or as a combination ofarc rated =ac"et and pants, or, for increased protection, as arc ratedcoveralls !ith =ac"et and pants. These combinations of arc ratedprotection also require an arc rated face shield, balaclava $soc"2hood%,safety goggles or glasses, hearing protection $ear canal inserts%, andheavy duty leather gloves and foot!ear for arc flash energy up to +&cal cmI&. ;here the arc flash incident energy is greater than +& cal cmI&,an appropriately rated arc flash suit !ith hood !ill be used. arious!eight arc rated fabrics are available. Benerally, the higher degree ofprotection is provided by heavier !eight fabrics and or by layeringcombinations of one or more layers of arc rated clothing. ;or" clothes !illbe made of natural materials, such as cotton or !ool, or arc ratedmaterials and !ill have full2length sleeves. Sleeves !ill be rolled do!nand collar buttons fastened for the greatest protection. Additional !or"2rest cycles !ill be considered for !or"ers !earing higher levels of PPE.

c. Employees !ill !ear leather shoes or boots that comply !ith therequirements of the American Society for Testing and aterialsCnternational $AST % )&4+/ 2 ++. 7o metal parts !ill be present in thesole, toe, or heel of the shoes !here nonconductive shoes are required.

d. ;or"ers !ill !ear approved hardhats !hen J

$+% ;or"ing above ground on poles, structures, or buildings or intrees.

$&% ;or"ing on the ground near poles, structures, buildings, or treesin !hich !or" is being done.

$/% isiting or observing in areas !here overhead !or" is beingdone.Note. :ardhats must be rated per A7SC Cnternational Safety Equipment Association $CSEA% K0'.+ as

follo!s Type + $top head protection%- Type & $lateral impact head protection%- (lass E 2 & , forelectrical protection- or (lass B 2 &,& for electrical protection.

e. (lass ( equals no electrical protection. ;henever eyes are indanger of being in=ured, !or"ers !ill !ear safety glasses or other eyeprotectors meeting A7SC standards. ;hen the !or" being performeddictates, !or"ers !ill !ear nonmetallic and nonconductive eye protection.

Appropriate PPE is needed to protect !or"ers from arc flash hazards.


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;hen protecting from a potential arc flash hazard, safety glasses orgoggles !ill be !orn in addition to an arc rated face shield $e?posure upto +& cal cmI&% or arc flash hood $e?posure greater than +& cal cmI&%.

f. Employees !ill !ear gloves, suitable for voltage e?posures of 1 toground or more as required, other!ise suitable !or" gloves !ill be !orn!hile handling materials and equipment to prevent the possibility ofslivers, cuts, and s"in irritation. The follo!ing requirements apply forrubber gloves

$+% ubber gloves !ill be of appropriate voltage rating for the !or"being performed. All rubber gloves !ill meet the standards set forth by

A7SC and AST #+& 2 '.

$&% ubber gloves issued for service !ill be tested at appropriatevoltage levels at intervals not e?ceeding 6 months.

$/% Feather glove protectors !ill be !orn over rubber gloves e?cept!here leather protectors are not required by &' () +'+ .+/8 or AST)4'6 2 0. ubber gloves should be "ept inside of leather protectors.

$4% ubber gloves !ill be carried cuff do!n in a bag, bo?, orcontainer that is designed for this purpose.

$1% ubber gloves !ill be visually inspected and field air2tested

before use each day and at other times if there is cause to suspectdamage.

$6% ubber gloves !ill be uniquely identified $for e?ample, serialnumber or other mar"ing%. The results of dielectric tests should bedocumented for verification and validation.

$8% ubber gloves !ill be !iped clean of any oil, grease, or otherdamaging substances as soon as possible.


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Fi ure &1/ E9am+le of a) a++ro+riate +er(o)al +rotecti5e e ui+me)t a)-

+rotecti5e clothi) for cate ory 0 or 1 ra) e

&4/ Clothi) (y(tem(

All clothing !orn by !or"ers !or"ing under possible electrical hazardconditions !ill be considered part of the employees@ protective clothingsystem. This includes rain!ear, cold !eather !ear, and underclothing.Protective clothing !ill provide a good functional fit to increase theprotection and comfort of the clothing. ;hen required for arc flash

hazards, protection !ill be increased by !earing single or multiple layersof arc rated outer garments over non2melting clothing. Sleeves and shirts!ill be fully buttoned and appropriate nec", head, and hand coveringsprovided.

&$/ Arc rate- clothi)


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All arc rated fabrics !ill comply !ith AST )+1 6 2 + a and 7)PA 8 E , Article +/ . $See 7)PA 8 E, para +/ .1 for details on the arc flashhazard analysis.%

&7/ Electric arc ha ar-(

Electric shoc" is a !idely recognized hazard and involves current flo!through or on the body. 5urns from electric arcs are not as !ellrecognized. There is no contact required and the burns can be severe,especially if the clothing ignites and continues to burn, or melts. Thee?tent of the employee@s in=ury is dependent on the length of the arc gap,available fault current, duration of the arc, distance of the employee fromthe arc, percentage of the body burned, employee@s age, medicalcondition, and number of layers of the clothing system. The properclothing system !ill minimize or reduce the burn in=ury.

&10/ Ty+e( of arc rate- fabric(

(hemically dependent arc rated fabrics are treated !ith arc resistant andflame retardant chemicals added to the fiber or treatments applied to thefabric. These treatments are activated by heat and produce gases thatsmother the flame. Typically, these fabrics have a definite life as definedby the manufacturer. This is usually defined by the number of home orcommercial !ashings and dryings to !hich the garment is e?posed.Cnherently arc rated fabrics, by their composition, do not burn in air. Thearc rating of this fabric is not affected by !ashing per the manufacturer@sinstructions.

&11/ !ai)te)a)ce a)- u(e

aintain electrical protective equipment and arc flash clothing and PPE ina safe, reliable condition follo!ing the manufacturer@s recommendations.Cnspect insulating equipment for damage before each day@s use andimmediately follo!ing any incident that can reasonably be suspected ofhaving caused damage. Supervisors !ill maintain documentation on allinspections. ubber insulating gloves !ill be given an air test, along !iththe inspection. ubber gloves !ill be given an air test, along !ith theinspection. Electrical protective equipment $rubber insulating% !ill besub=ected to periodic electrical tests. Tests voltages and the ma?imumintervals bet!een tests !ill be in accordance !ith AST )4'6 2 0- &'() +'+ .+/8, Table C26- and 7)PA 8 E, Table +/ .8$(%$8%$c%.
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&12/ Clea) a)- electrical te(ti) of +er(o))el +rotecti5e e ui+me)t

ubber2insulated PPE issued for use !ill receive periodic cleaning andelectrical testing in accordance !ith the requirements of the appropriate

A7SC and or AST standards $see app B %. The intervals of retest forrubber goods issued for service !ill not be more than 6 months for glovesand +& months for sleeves and blan"ets. Bloves or sleeves that havebeen electrically tested but not issued for service !ill not be placed intoservice unless they have been electrically tested !ithin the previous +&months.

a. All testing methods, apparatus, and facilities !ill meet the applicable A7SC and or AST standard. The method used and the results of suchtests !ill be documented in accordance !ith local standards and madeavailable for inspection.

b. Testing apparatus !ill be operated and maintained by personneltrained for such !or". (alibration schedules and procedures forcalibrating testing apparatus are recommended to be in accordance !ithlocal requirements.

c. etested rubber2insulated PPE !ill be identified to indicate the dateof the latest test or date of retest in accordance !ith the appropriatestandard. )ollo! the manufacturer@s recommendations on the type ofpaint or in" to be used to mar" PPE.

&13/ .e)eral +rotecti5e e ui+me)t a)- tool(

a. ;hen !or"ing near e?posed energized conductors or circuit parts,each employee !ill use insulated tools or handling equipment. Cf theinsulating capability of insulated tools or handling equipment is sub=ect todamage, the insulating material !ill be protected.

b. )use handling equipment, insulated for the circuit voltage, !ill beused to remove or install fuses !hen the fuse terminals are energized.

c. opes and hand lines used near e?posed, energized parts !ill benonconductive.

d. Protective shields, protective barriers, or insulating materials !ill beused for protection from shoc", burns, or other electrically related in=uries!hen !or"ing near e?posed, energized parts !hich might be accidentally
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contacted or !here dangerous electric heating or arcing might occur.;hen normally enclosed live parts are e?posed for maintenance orrepair, they !ill be guarded to protect unqualified persons from contact!ith the live parts.

&1 / Emer e)cy a)-?or re(cue e ui+me)t

#A Pam 4 2++ stipulates that the local medical authority must approvethe contents, intended use, and maintenance of all first2aid "its and thatpersonnel !ho may be required to perform first aid must receiveapproved first2aid training $see #A Pam 4 2++ %.

a. Each maintenance facility in !hich personnel are e?posed to 1 orhigher !ill maintain emergency equipment in readily accessible andconspicuous locations and have !or"ers trained in use of the emergencyequipment. This equipment !ill include items for use in electricalemergencies and for first aid to electrical shoc" victims. eserve theseitems for emergencies- they may not be used for routine purposes.Emergency equipment !ill be inspected monthly to ensure that all itemsare available and in good condition. obile maintenance facilities andtransportable maintenance shelters that do not have ready access to amedical facility !ill be provided !ith a general purpose first aid "it,national stoc" number 61412 2'&&2+& , if possible.

b. ;here the eyes or body of any person may be e?posed to in=uriouscorrosive materials, suitable facilities for quic" drenching or flushing of theeyes and body !ill be provided !ithin the !or" area for immediateemergency use $see () &' +'+ .+1+$c%%.

c. )inal determination of appropriate emergency and rescueequipment !ill be determined by local authorities.

&1%/ >5ercurre)t +rotectio)

a. ircuit de&energized by a circuit protective device. Cf a circuit is de2energized by a circuit protective device, the circuit may not be manuallyre2energized until it has been determined that the equipment and circuitcan be safely energized. All personnel $electrical and nonelectrical% mustbe made a!are of this.

b. 'epetitive manual reclosing. The repetitive manual reclosing ofcircuit brea"ers or reenergizing circuits through replaced fuses is
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prohibited. $See 7)PA 8 E , Section +/ .8$F% and &' () +'+ .//4$b%$&%.%

c. 'eclosing circuits after protective device operation. After a circuit isde2energized by a circuit protective device, the circuit may not bemanually re2energized until it has been determined that the equipmentand circuit can be safely energized. ;hen it can be determined from thedesign of the circuit and the overcurrent devices involved that theautomatic operation of a device !as caused by an overload rather than afault condition, no e?amination of the circuit or connected equipment isneeded before the circuit is re2energized.

d. *odifying or bypassing overcurrent protection.


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c. After service is restored, chec" that the equipment s!itches are inthe


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midpoint of one phase is used as a circuit conductor- or if a serviceconductor is uninsulated.

d. A( systems of 1 to + are not required to be grounded underany of the follo!ing conditions if the system is

$+% 3sed e?clusively to supply industrial electric furnaces for melting,refining, tempering, and the li"e.

$&% Separately derived and is used e?clusively for rectifierssupplying only ad=ustable speed industrial drives.

$/% Separately derived and is supplied by a transformer that has aprimary voltage rating less than + , provided all of the system is usede?clusively for control circuits- the conditions of maintenance andsupervision ensure that only qualified persons !ill service the installation-continuity of control po!er is required- and ground detectors are installedon the control system.

%&3/ Facility rou)-i) (y(tem(

)acility grounding systems must be installed and maintained inaccordance !ith 7)PA 8 $7E(% . All grounding points !ithin a facility !illbe electrically continuous to a grounding $earth% electrode. The resistancemeasured from the facility@s most remote grounding point to each

electrode should not e?ceed & ohms. The resistance of the groundingelectrode to earth should not e?ceed &1 ohms.

a. obile facilities !ill be grounded in accordance !ith their operatinginstructions. Cf used, the po!er generator !ill be grounded to a groundsystem. Cf the generator and vehicle are sited less than &1 ft $8.6 m%apart, either a common ground !ill be used or the t!o ground systems!ill be connected !ith bare copper cable, American !ire gauge M6 orlarger. Cf commercial po!er is used, the vehicle !ill be grounded to thecommercial ground conductor at the first service disconnect.

b. etal frames of electric equipment and tools, such as handheldpo!er tools, must be connected to a grounding conductor $for e?ample,they must contain a three2!ire po!er cord and plug%. Portable tools thatare protected by an approved insulation system $listed by 3nder!riter@sFaboratory or equivalent% need not be grounded.
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c. aintenance activities !ill maintain a file of up2to2date descriptionsof all facility grounding installations, such as construction specificationsand dra!ings, blueprints, !or" orders, and so forth. Cnstallation engineersor other qualified personnel $as determined by local policy% shouldannually inspect grounding systems for compliance !ith appropriatestandards, including conductor continuity. (ontinuity inspections shouldbe made !ith a lo!2resistance ohmmeter. This !ill include nonpermanentfacilities.

d. #A Pam /01264 augments these requirements for groundingoperations in e?plosive safety operations.

%& / @o)-i)

(aution !ill be ta"en to ensure that the main bonding =umper andequipment bonding =umper are sized and selected correctly. $See 7)PA8 $7E(% , Article &1 .% 5onding completes the grounding circuit so that itis continuous. Cf a ground fault occurs, the fault current !ill flo! and openthe overcurrent protection devices. The means of bonding !ill provide thefollo!ing to ensure the grounding system is intact

a. A permanent connection.

b. A positive continuity at all times.

c. Ampacity to conduct fault current.

%&%/ Tem+orary *iri)

a. All requirements for permanent !iring in &' () +'+ , Subpart Sand 7)PA 8 !ill also apply to temporary !iring in all Army facilities,installations, and operations. emove temporary !iring immediately uponcompletion of the pro=ect or purpose for !hich the !iring !as installed.3se temporary electrical installations of more than 6 only duringperiods of tests, e?periments, emergencies, or construction2li"e activities.

b. 3se temporary electrical po!er and lighting installations of 6 ,nominal, or less only during remodeling, maintenance, or repair ofbuildings, structures, or equipment, and similar activities- for a period notto e?ceed ' days for (hristmas decorative lighting, carnivals, and similarpurposes- or for e?perimental or development !or" and duringemergencies.
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c. Focal regulations and or S


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Fi ure %&1/ E9am+le of (*itch ear, +a)el boar-(, a)- motor co)trol ce)ter(

%&4/ U(e( of e ui+me)t *he) flammable material( a)-?oratmo(+here( are +re(e)t


45/94

;hen flammable materials or atmospheres are present, electricalequipment that is 7 TF2listed for use in such environments or approvalby the A:D !ill be used to prevent hazardous conditions from developing.Cn areas !here flammable liquids are stored or used, electricalequipment, !iring, s!itches, and so forth !ill meet the requirements of7)PA 8 $7E(%.

%&$/ :a ar-ou( ;cla((ifie-< locatio)(

a. The locations of electrical equipment and !iring !ill be classifieddepending on the properties of the flammable vapors, liquids or gases, orcombustible dusts or fibers that may be present. Cn classifying locations,each room, section, or area !ill be classified on an individual basis inaccordance !ith 7)PA 8 $7E(%, Article &/1 and Article 1 - &' ()+'+ ./ 8- and or Engineer anual /012+2+, table ++2&.

b. All hazardous $classified% locations !ithin a facility and or activity !illbe documented by the immediate supervisor responsible for thehazardous $classified% location.

c. All threaded conduit !ill be threaded !ith a 7ational $American%Standard Pipe Taper standard conduit cutting die that provides / 42intaper per foot. The conduit !ill be made !rench tight to prevent spar"ing!hen fault current flo!s through the conduit system and to ensure thee?plosion proof or flame proof integrity of the conduit system !hereapplicable. Equipment provided !ith threaded entries for field !iringconnection !ill be installed in accordance &' () +'+ ./ 8$g%$&%$iv%$A%or $g%$&%$iv%$5%.

d. All electric and electronic equipment in hazardous locations !ill beprotected at all times. The appropriate protection techniques !ill be usedbased on classification as listed in &' () +'+ ./ 8$g%$/%.

e. All equipment, !iring methods, and installations of equipment inhazardous $classified% locations !ill be listed either as intrinsically safe,listed for the hazardous location, or demonstrated to be safe for thelocation.

f. Equipment and !iring listed for the hazardous $classified% location!ill be approved for class of location and for ignitable or combustibleproperties of the specific gas, vapor, dust, or fiber that !ill be present.


46/94

Equipment !ill be mar"ed to identify class, group, and operatingtemperature or temperature range for !hich it is approved.

%&7/ Defecti5e or -ama e- e ui+me)t

;hen a defect or evidence of damage that can cause an electrical hazardis found, the defective or damaged item !ill be removed from service andreported to the appropriate authorities. 3se is prohibited until repairs andtests necessary to render the equipment safe are completed.

%&10/ S+ace( a)-?or cleara)ce( about electrical a)-?or electro)ice ui+me)t

Sufficient access, !or"ing space, and illumination !ill be provided andmaintained about all electric equipment to permit ready and safeoperation and maintenance of such equipment. At least one entrance ofsufficient area !ill be provided to give access to the !or"ing space.

a. ;or" space distances !ill be measured from the live parts ife?posed or from the enclosure front or opening if live parts are enclosed.Note. (oncrete, bric", or tile !alls are considered to be grounded.

b. ;here live parts are normally e?posed on the front of equipment,!or"ing space in front of such equipment may not be less than / ft $.' m%.

c. ;or"space !idth may not be less than / in $86.& cm% !ide in frontof the equipment or the !idth of the equipment, !hichever is greater. Cnall cases, the !or"ing space !ill permit at least a ' 2degree opening ofequipment doors or hinged panels.

d. ;or"ing space is not required in bac" of assemblies !here thereare no rene!able or ad=ustable parts such as fuses or s!itches on thebac" and !here all connections are accessible from locations other thanthe bac".

e. ;or"ing space may not be used for storage.f. ;hen normally enclosed live parts are e?posed for inspection or

servicing, the !or"ing space, if in a passage!ay or general open space,!ill be suitably guarded to prevent in=ury to personnel entering the area.

g. Proper illumination !ill be provided for all !or"ing and ormaintenance spaces.


47/94

h. ;here provision of these !or"ing spaces is not practicable $fore?ample, on the interior of shelters or similar equipment% address thehazard in the =ob briefing and consider additional hazard controls, such asan assistant and or safety !atch.

%&11/ Emer e)cy e ui+me)t

Emergency equipment !ill be maintained in the facility as determined bylocal emergency authority and personnel !ill be trained in use of suchequipment.

Cha+ter 'Electrical Safety i) Co)ti) e)cy@a(e >+eratio)(

'&1/ .e)eral

All personnel !ill be protected from electrical related hazards. All leadersat each echelon of contingency base operations !ill ensure ris"assessments identify electrical hazards and ensure appropriate controlsare implemented to mitigate electrical ris". All components of contingencybase operations !ill comply !ith )ederal, #epartment of #efense, and

Army electrical standards including all chapters in this pamphlet.(omponents of contingency base operations !ill not provide an unsafecondition or unnecessary ris" to personnel. Electrical safety S


48/94

b. System safety engineers !ill ensure electrical standards are metduring revie! of all components of the )PE shelter at each developmentstage and prior to fielding.

c. is" assessments !ill be conducted prior to placement of )PEshelters in accordance !ith #A Pam /012/ .

d. Equipment !ill be 7 TF2listed and used as intended, or inspectedand approved as safe for intended use by the A:D.

'&2/ A++licatio)( of co)ti) e)cy co)(tructio) (ta)-ar-( forelectrical i)(tallatio)(

a. (ontingency construction standards for electrical installations aredesigned to safeguard life or limb, health, property, and !elfare byregulating the design, construction, and installation of electrical systemsand equipment.

b. Personnel, companies, or units !ill not erect, construct, alter,e?tend, repair, move, remove, or demolish electrical systems in anyfacility !ithout prior approval from the base operations supportcommander or designated representative.

c. The 5ase (amp aster Plan construction standard !ill regulate thedesign, construction, and installation of electrical systems as the pro=ect

pertains to initial, temporary, or semi2permanent contingencyconstruction. All contingency construction must meet basic safetyrequirements for bonding, grounding, and safe building practices.

d. All !or"ers, including contractors, !ill comply !ith the requirementsin 3)( /216 2 +. This includes safe clearance and loc"out and or tagoutprocedures, and arc flash PPE requirements.

e. Electrical !or" !ill be inspected and tested by a qualified electricianbefore occupancy or acceptance of the electrical !or". The inspection !ill

be commensurate !ith 3nited States and host nation requirements, asapplicable. 7o person !ill ma"e connections from a utility, source ofenergy, fuel, or po!er to any building or system that has not beeninspected and accepted by a qualified person that has conducted suchtests to ensure buildings are in compliance !ith the constructionstandards.
http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=Pam%20385-30http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=Pam%20385-30


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f. All manufactured buildings !ill have a single point to disconnectpo!er at the service entry.

g. All electrical !or" !ill comply !ith either the host nation@scode, 7)PA 8 $7E(% , or the 5ritish Standard $5S% 868+. Cn general, thehost nation code !ill be used in countries !ith an e?isting electrical code-7)PA 8 $7E(% !ill be used in countries !here 6 hertz $:z% po!er ispredominant $but the country does not have an established electric code%-and 5S 868+ !ill be used in countries !here 1 :z po!er is predominant$but no electric code e?ists%. Cn any of these instances it is possible to use7)PA 8 $7E(% if the command deems necessary. ;here there isconflict bet!een a general requirement and a specific requirement, themore stringent requirement !ill be applicable. Cn any instances !here!iring based on different codes !ill be =oined, the different codes !ill bedocumented and for!arded through the base operations supportcommander to the appropriate Service representative of the Tri2ServiceElectrical ;or"ing Broup $TSE;B% for a decision as to !hich code !ill beused before !or" commences.

h. )or any e?peditionary operating area, a tas" force !ill beestablished !ith the mission of accessing and analyzing fire and electricalsafety issues and directing action to reduce ris". The organization !illhave master electricians versed in other codes@ $for e?ample, 5S 868+%requirements for bonding and grounding, and they !ill be utilized as theBovernment@s quality assurance for electrical !or" in theater. At aminimum, fault current calculations and grounding impedance readings!ill be included as part of acceptance testing. The contractor !hoprovides these assets must not be the contractor currently contracted toperform the electrical !or".

i. A theater arbitration cell may be created and staffed to provideoversight for electrical !or" associated !ith contingency construction andmaintenance2related pro=ects !hich cannot comply !ith 7)PA 8 $7E(%.The theater arbitration cell !ill also include A:D personnel. The A:Dpersonnel !ill process and revie! deviation requests. The A:D personnel!ill for!ard the deviation request and recommendations to the TSE;Bfor final ris" determination and acceptance. The TSE;B is responsiblefor all #epartment of #efense unified electrical criteria. The theater ArmyService component command !ill be responsible for coordinating !ithTSE;B and disseminating and maintaining records of all deviationrulings.
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j. 5onding and grounding of e?plosive and ammunition facilities andoperations !ill be in accordance !ith A /01264 and supportingregulations.

Cha+ter 4Tactical Electrical Safety4&1/ I)tro-uctio)

Cn Army tactical operations, personnel may encounter electrical servicesand equipment that do not meet established safety standards. As much ofthe intrinsic safety in electrical services and equipment relies oncompliance to safety standards, additional electrical hazards are often

present !ith noncompliant systems. Additional precautions arenecessary.

4&2/ Tactical o+eratio)(

Feaders !ill consider electrical hazards in tactical operations andintegrate these into composite ris" management techniques. (hapter&requirements !ill apply.

4&3/ A--itio)al ha ar-( a)- +recautio)(

a. )rmy equipment. All Army tactical electrical equipment !ill be usedin accordance !ith the system technical manuals, including maintenanceinstructions.

b. ommercial equipment. (ommercial electrical equipment used intactical operations !ill be used in accordance !ith manufacturer@sinstructions and precautions. Temporary !iring !ill comply !ith chapter4 and the 7)PA 8 $7E(% , or approved electrical safety standards usedin theater.

c. $ow hanging and uninsulated power lines. Po!er lines and e?posedelectrical parts !ill be treated as energized and avoided, !ith personnel"eeping & ft $6 m% a!ay. See paragraphs /20 through /2+ for moreinformation on approach distances.

d. 0ost nation electrical services and equipment. Electrical equipmentoutside of the continental 3nited States has different voltages and other
http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_385-64http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch2http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch2http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch4http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch4http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-10http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_385-64http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch2http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch2http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch4http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch4http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=NFPA_70http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-8http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#p03-10


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characteristics. These services may not be grounded and may lac" basicelectrical safety safeguards. #o not use host nation electrical services,equipment, and facilities unless competent authority determines that it issafe to do so. See chapter 1 for additional information. Electricalequipment and services are generally unsafe if J

$+% (overs are removed or !iring or other parts are e?posed.

$&% Equipment is e?cessively hot or produces smo"e or burningsmell.

$/% The equipment gives a shoc". A shoc" means the equipmentsurface is energized and dangerous. 7onelectrical equipment, such asplumbing, may become energized from unsafe electrical systems.Note. #o not use any equipment or systems if there is any sensation of shoc". eport itimmediately and safeguard it from use through barriers and signs untilqualified personnel can de2energize or perform repairs.

e. ,actical radio antennas.

$+% )ollo! precautions found in system technical manuals. Cfun"no!n, "eep antenna masts t!ice their height a!ay from po!er linesand other e?posed electrical parts.

$&% Geep antenna profile do!n as lo! as possible for vehicular and

man2pac" radio antennas. Tie vehicle mounted antennas !here possible.#o not try to grab or hold the antenna do!n during movement.Note. Antenna contact !ith po!er lines or other energized parts is lethal.

$/% #o not assume plastic or fiberglass2coated antennas are safe forpo!er line contact.

$4% Cf electrical !ire contact occurs J

a! ;hile in a vehicle, do not e?it the vehicle unless it is immobile

or on fire. #o not touch the antenna. ove the vehicle to brea" contact.b! And e?it is necessary, do not touch the ground and vehicle at

the same time. Fand !ith both feet together and shuffle in small steps toavoid step potential hazards from electrified ground. 5e careful tomaintain balance.
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch5http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#ch5


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c! #o not render aid to victims until po!er is off or contact isremoved and the area is safe to enter. Nou !ill become a victim if youcontact an electrified victim or vehicle.

f. 1atteries. )ollo! precautions and safety instructions provided !ithmilitary batteries. )ollo! manufacturer@s instructions and precautions !ithcommercial batteries. Cf no precautions or instructions are provided thefollo!ing guidance !ill be used

$+% #o not short battery terminals. This produces a ris" of fire and ore?plosion. Protect e?posed terminals on batteries from contact.

$&% #o not mi? used and ne! batteries.

$/% #o not mi? battery of different chemistries $for e?ample, lithiumand al"aline%.

$4% #o not puncture batteries.

$1% #o not e?pose batteries to e?cessive heat or fire.

$6% #ispose of batteries in accordance !ith locally establishedS


53/94

$T s, T5s O S(s%

3S Army (orps of Engineers Army Engineering Publications $e?cept administrative%$T s O ) s%

3S Army edical #epartment Army edical Publications $e?cept administrative%$T s, ) s, and S5 02812Series Publications%

Army Gno!ledge


54/94

Publicatio) Sectio) II "elate- Publicatio)(

A related publication is a source of additional information. The user does

not have to read a related reference to understand this publication. A7SCpublications are available for purchase from http !!!.ansi.org . ASTpublications are available for purchase from http !!!.astm.org . 7)PApublications are available for purchase from http !!!.nfpa.org .

A" '0$&1/ Army Commu)ity Ser5ice Ce)ter

A" 400&1 2/ Ty+e Cla((ificatio), !ateriel "elea(e, Fiel-i) , a)-Tra)(fer

DA Pam 0&11/ Pre5e)ti5e !e-ici)eDA Pam 3$%&30/ !i(ha+ "i(8 !a)a eme)t

DA Pam 3$%& 0/ Army Acci-e)t I)5e(ti atio)( a)- "e+orti)

DA Pam 3$%&' / Ammu)itio) a)- E9+lo(i5e( Safety Sta)-ar-(

ANSI ASC A1 /1&2004/ America) Natio)al Sta)-ar- for La--er( &=oo- Safety "e uireme)t(

ANSI ASC A1 /3&200$/ America) Natio)al Sta)-ar- for La--er( &Fi9e-&Safety "e uireme)t(

ANSI ASC A1 / &2007/ America) Natio)al Sta)-ar- Safety"e uireme)t( for ob !a-e =oo-e) La--er(

ANSI ASC A1 /%&2004/ America) Natio)al Sta)-ar- for La--er( &Portable "ei)force- Pla(tic & Safety "e uireme)t(

ANSI?I)ter)atio)al Safety E ui+me)t A((ociatio) ;ISEA< $4/1&2010/America) Natio)al Sta)-ar- for >ccu+atio)al a)- E-ucatio)alPer(o)al Eye a)- Face Protectio) De5ice(

ANSI?ISEA $7/1 & 2007/ America) Natio)al Sta)-ar- for I)-u(trial:ea- Protectio)

ANSI %3% (erie(/ Safety Color Co-e
http://www.ansi.org/http://www.astm.org/http://www.nfpa.org/http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_608-1http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%2040-11http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-30http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-40http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-64http://www.ansi.org/http://www.astm.org/http://www.nfpa.org/http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_608-1http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=AR_700-142http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%2040-11http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-30http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-40http://www.apd.army.mil/jw2/xmldemo/db_lookup/link.htm?doc=PAM%20385-64


55/94

ANSI %3%/2 & 2011/ E)5iro)me)tal a)- Facility Safety Si )(

AST! D120 & 07/ Sta)-ar- S+ecificatio) for "ubber I)(ulati).lo5e(

AST! D10 $ & 12/ Sta)-ar- S+ecificatio) for "ubber I)(ulati)@la)8et(

AST! D10 7 & 7$ ;2010


56/94

AST! F1114 & 03 ;200$


57/94

@S 4'41/ "e uireme)t( for Electrical I)(tallatio)( ;A5ailable for+urcha(e from htt+ ??***/(ta)-ar-(ce)tre/co/u8 / #696 06 (2011)

tandard e ifi ation for Aeat*er $rote tors for? !!er ns latin' =loves and >ittens
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tabg-1http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tabg-1


77/94

#oot ear % >#1117 03(2008)% >#2412 11

% >#2413 11

tandard e ifi ation for et*ods for #oot $rote tiontandard e ifi ation for $erforman e ?e- irements

for $rote tive ( afet+) oe @a #oot ear

Vis al ins e tion % >#1236 96(2012)

tandard = ide for Vis al ns e tion of &le tri al$rote tive ? !!er $rod ts

% arel % >#1506 10a

tandard $erforman e e ifi ation for #lame?esistant and %r ?ated e tile >aterials for earin'% arel for Bse !+ &le tri al orkers & osed to>omentar+ &le tri %r and ?elated *ermal a ards

?ain'ear % >#1891 12

tandard e ifi ation for %r and #lame ?esistant?ain ear

#a e rote tive rod ts

% >#2178 12

tandard est >et*od for #887 12e1

tandard e ifi ations for $ersonal @lim!in'&- i ment

? !!er rote tive rod ts vis alins e tion

% >#1236 96(2012)

tandard = ide for Vis al ns e tion of &le tri al$rote tive ? !!er $rod ts

% rons % >#2677 08a

tandard e ifi ation for &le tri all+ ns latin'% rons

.&2/ "elate- +rotecti5e e ui+me)t

Table B2& sho!s the standards for other related protective equipment.

Table +-2. ,tandards "or ther %elated 'rotecti e E&uipment

,ub ect #umber Title

%r rote tive !lankets

% >#2676 09

tandard est >et*od for #479 06 (2011)

tandard e ifi ation for t*e ervi e @are ofns latin' Clankets
http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tabg-2http://www.apd.army.mil/jw2/xmldemo/p385_26/main.asp#tabg-2


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@overs % > #711 02 (2007)

tandard e ifi ation for #i!er'lass ?einfor ed$lasti (#?$) ?od and !e Bsed in Aive Aine

ools

ns lated *and tools % >#1505 10

tandard e ifi ation for ns lated andns latin' and ools

Aadders %" % @%14.1 2007

%meri an "ational tandard for Aadders oodafet+ ?e- irements

%" % @%14.3 2008

%meri an "ational tandard for Aadders #i edafet+ ?e- irements

%" % @%14.4 2009

%meri an "ational tandard afet+ ?e- irementsfor Do! >ade ooden Aadders

%" % @%14.5 2007

%meri an "ational tandard for Aadders $orta!le ?einfor ed $lasti afet+ ?e- irements

Aine *ose % > #855 09

tandard e ifi ations for em orar+ $rote tive=ro nds to Ce Bsed on


79/94

A++e)-i9 ::a ar- A)aly(i( Factor( Prior to

Performi) Electrical =or8:&1/ .e)eral

The follo!ing list is not all inclusive, but provides suggestions for factorsto consider. emember that one goal of the pre2=ob brief is to assure thatall !or"ers understand the hazards and controls.

:&2/ Factor(

a. #escribe the modes of electrical !or" that !ill be conducted duringthis !or" activity $for e?ample, de2energized !or", verification of zeroenergy, energized !or", tuning and ad=usting%.

b. ;hat electrical hazards !ill the !or"er encounter, or be e?posed toduring each step of the !or"R E?amples include shoc", thermal burn, andarc flash.

c. ;hat are the shoc" and arc flash boundariesR

d. :o! close !ill any portion of the !or"er$s% body come to e?posedelectrical conductorsR ;hich of the boundaries, if any, !ill the !or"ercrossR

e. At !hat steps or phases of this activity is the !or"er$s% e?posed toelectrical hazardsR

f. ;hat can go !rong, or !hat mista"e could be made, that !oulde?pose the !or"er to an electrical hazardR

g. Cs a second person or safety !atch required for any steps of thisactivityR

h. Cf so, !hat are their specific duties and training and or "no!ledgerequirementsR

i. ;hat electrical PPE is requiredR #oes it require certificationR Cf so, isit currentR


80/94

j. #o the !or"ers have training to inspect and use the electrical PPER

k. Are there nonelectrical hazards that have controls that could conflict!ith the electrical hazard controlsR Specific e?amples include uniformsthat contain nylon, clean room coats, or respirators that are not arc flashrated, and chemical or glove bo? gloves that are not voltage rated. Cf so,ho! !ill this be resolvedR

l. Cs an S


81/94

A++e)-i9 I.ui-eli)e( for E ui+me)t I)(+ectio)

a)- A++ro5al by the Authority:a5i) uri(-ictio)I&1/ .e)eral

Cn2house built, other manufacturer, and or modified 7 TF2listed electricalequipment must be e?amined. (hec" the items listed belo! asapplicable.

I&2/ E9ter)al i)(+ectio)

a. -nclosure.

$+%


82/94

$&% #irect2!ired into facility.

a! Proper voltage and ampacity rating for !iring method.

b! Cnstalled in accordance !ith 7)PA 8 $7E(% .

c! Proper loading and overcurrent protection in branch circuit.

c. 2rounding.

$+% Bround from cord or other is terminated properly.

$&% All noncurrent2carrying e?posed metal is bonded properly.

$/% All noncurrent2carrying internal subsystems are bonded properly.

$4% Equipment ground is run !ith circuit conductors.

$1% Au?iliary ground permitted.

$6% Termination chec"ed.

d. /oreign power supplies and equipment.

$+% (onnected to facility po!er !ith appropriate adapters.

$&% (orrect voltage, frequency, and phasing.

$/% (orrect !ire ampacity for use in 3nited States.

e. #vercurrent protection.


83/94

g. #ther requirements.

$+% Adequate documentation.

$&% Procedures to use $for e?ample, installation !iring diagram%.

$/% Training and qualifications.

h. Secondary hazards.

$+% adio frequency.

$&% #ielectric or magnetic fields.

$/% Cnfrared, visible or ultraviolet.

$4% L2rays.

$1% )ire, electrical e?plosion.

I&3/ I)ter)al i)(+ectio)

a. 3nternal wiring.

$+% Polarity.

$&% Phasing.

$/% Fanding of ground.

$4% Fine voltage and high voltage separate from lo! voltage.

$1% ;iring terminals and leads.

$6% ;ire size.

$8% Proper dielectric.

$0% (learance creepage distances for high voltage.

$'% Fisted conductors, if applicable.

b. #ther internal issues.


84/94

$+% 7eat !or"manship.

$&% Fisted components used, if applicable.

$/% Proper management of conductors.

$4% )ree of sharp edges.

$1% Proper cooling.

$6% Automatic discharge of high2voltage capacitor.

c. ,ests performed.

$+% Bround continuity $less than + ohm%.

$&% Polarization of cord and plug.

$/% Auto discharge of high2voltage capacitor.

$4% )unctional tests $for e?ample, B)(C and emergency shut2off%.

d. /ailure analysis.

$+% Effect of ground fault.

$&% Effect of short circuit.

$/% Effect of interloc" failure.

$4% Effect of overload.

$1% Effect of incorrect setting.

e. *aintenance. Any safety issues !ith access and maintenance.

.lo((arySectio) I

Abbre5iatio)(


85/94

AC

alternating current

A:

authority having =urisdiction

ANSI

American 7ational Standards Cnstitute

A"

Army regulation

AST!

American Society for Testing and aterials Cnternational

@S

5ritish Standard

CE

European (onformity

CF"

(ode of )ederal egulations

cal?cmG2

calories square centimeters

cm

centimeter

DA

#epartment of the Army


86/94

DC

direct current

EE=P

Energized Electrical ;or" Permit

EU

European 3nion

ft

foot $feet%

FPE

force provider e?peditionary

F"

fire2resistant

F"P ;+ublicatio)B! ;+ublicatio)5ercurre)t

Any current in e?cess of the rated current of equipment or the ampacity ofa conductor. Ct may result from overload, short circuit, or ground fault.

Pa)elboar-

A single panel or group of panel units desig

Electrical Safe

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