This document outlines electrical safety procedures and guidelines. It defines key terms like qualified person and energized/exposed parts. It provides clearance distances for working near overhead lines and guidelines for using electrical equipment safely such as inspecting cords and plugs, wearing protective equipment, and implementing alerting techniques like signs and attendants. The document emphasizes the importance of equipment being de-energized through a lockout/tagout procedure before work is done and maintaining safe distances from energized equipment.

1. Electrical Safety-Electrical Safety-
Qualified PersonQualified Person

2. Energized exposedEnergized exposed
electrical partselectrical parts
Exposed partsExposed parts
Live or energizedLive or energized
partsparts
De-energizedDe-energized
partsparts
1a

3. Energized exposedEnergized exposed
electrical partselectrical parts
Exposed parts that are de-Exposed parts that are de-
energized, but notenergized, but not
locked/tagged are consideredlocked/tagged are considered
energized, exposed partsenergized, exposed parts
1b

4. Working near exposedWorking near exposed
partsparts
Only qualified workers can workOnly qualified workers can work
on or near exposed electricalon or near exposed electrical
partsparts
2a

5. Working near exposedWorking near exposed
partsparts
Live parts operating at less thanLive parts operating at less than
50 volts to ground do not need50 volts to ground do not need
to be de-energized when:to be de-energized when:
• the worker experiences nothe worker experiences no
increased exposure to electricalincreased exposure to electrical
burns or explosions due toburns or explosions due to
electrical arcselectrical arcs
2b

6. Working near exposedWorking near exposed
partsparts
Lockout/tagout must beLockout/tagout must be
performed by a qualified personperformed by a qualified person
Who is considered aWho is considered a
qualified person?qualified person?
2c

7. Working near exposedWorking near exposed
partsparts
Types of excluded electricalTypes of excluded electrical
work:work:
• general, transmission, distributiongeneral, transmission, distribution
installationsinstallations
• communications installationscommunications installations
• vehicle installationsvehicle installations
• railway installationsrailway installations
2d

8. Distinguishing exposedDistinguishing exposed
live parts from other partslive parts from other parts
Qualified persons use voltageQualified persons use voltage
testing equipment to identifytesting equipment to identify
live and de-energized partslive and de-energized parts
Testing equipment must beTesting equipment must be
rated for the anticipatedrated for the anticipated
voltages to be testedvoltages to be tested
3a

9. Nominal voltage ofNominal voltage of
exposed live partsexposed live parts
Nominal voltages are valuesNominal voltages are values
assigned to circuits toassigned to circuits to
designate its voltage classdesignate its voltage class
• 120/240120/240
• 480Y/277480Y/277
• 600600
4a

10. Nominal voltage ofNominal voltage of
exposed live partsexposed live parts
The actual voltage at which aThe actual voltage at which a
circuit operates can vary fromcircuit operates can vary from
the nominal within a range thatthe nominal within a range that
permits satisfactory operationpermits satisfactory operation
Multi-meters/volt-ohm metersMulti-meters/volt-ohm meters
identify voltageidentify voltage
4b

11. Clearance distances -Clearance distances -
Unguarded/energizedUnguarded/energized
overhead linesoverhead lines
The requiredThe required
distancedistance
between thebetween the
workers and aworkers and a
conductiveconductive
object thatobject that
they couldthey could
contactcontact
5a

12. Used whenUsed when
workingworking
belowbelow
unguarded,unguarded,
energizedenergized
lineslines
Clearance distances -Clearance distances -
Unguarded/energizedUnguarded/energized
overhead linesoverhead lines
5b

13. Exceptions to required distances:Exceptions to required distances:
The worker is wearing insulatedThe worker is wearing insulated
equipmentequipment
5c
Clearance distances -Clearance distances -
Unguarded/energizedUnguarded/energized
overhead linesoverhead lines

14. Exceptions to required distances:Exceptions to required distances:
The energized part is insulatedThe energized part is insulated
from the worker, and allfrom the worker, and all
conductive parts at a differentconductive parts at a different
potentialpotential
Clearance distances -Clearance distances -
Unguarded/energizedUnguarded/energized
overhead linesoverhead lines
5d

15. Exceptions to required distances:Exceptions to required distances:
The worker is insulated from allThe worker is insulated from all
conductive objects at aconductive objects at a
different potential than thedifferent potential than the
energized partenergized part
Clearance distances -Clearance distances -
Unguarded/energizedUnguarded/energized
overhead linesoverhead lines
5e

16. Voltages 50 kv or less, theVoltages 50 kv or less, the
clearance distance is 10 feetclearance distance is 10 feet
Voltages greater than 50kv, theVoltages greater than 50kv, the
clearance is 10 feet plus 4clearance is 10 feet plus 4
inches for every 10 kv over 50inches for every 10 kv over 50
kvkv
6a
Clearance distances -Clearance distances -
overhead lines andoverhead lines and
vehicles/equipmentvehicles/equipment

17. When the vehicle is in transit,When the vehicle is in transit,
and the structure is lowered:and the structure is lowered:
• the clearance distance is 4 feet forthe clearance distance is 4 feet for
50 kv or less; or50 kv or less; or
• 4 feet plus 4 inches for every 10 kv4 feet plus 4 inches for every 10 kv
over 50 kv for voltage greater thanover 50 kv for voltage greater than
50 kv50 kv
6b
Clearance distances -Clearance distances -
overhead lines andoverhead lines and
vehicles/equipmentvehicles/equipment

18. Insulating barriersInsulating barriers
• When installed but not attached toWhen installed but not attached to
a vehicle, the clearance distancea vehicle, the clearance distance
is the designed workingis the designed working
dimensions of the barrierdimensions of the barrier
Refer to Table S-5 for aerial liftRefer to Table S-5 for aerial lift
clearance distancesclearance distances
6c
Clearance distances -Clearance distances -
overhead lines andoverhead lines and
vehicles/equipmentvehicles/equipment

19. Employees must not come intoEmployees must not come into
contact with vehicles/equipmentcontact with vehicles/equipment
under an energized line unlessunder an energized line unless
the:the:
• employee is wearing proper PPEemployee is wearing proper PPE
• equipment/vehicle is located so thatequipment/vehicle is located so that
no uninsulated part can provide ano uninsulated part can provide a
conductive path to employeesconductive path to employees
6d
Clearance distances -Clearance distances -
overhead lines andoverhead lines and
vehicles/equipmentvehicles/equipment

20. Do not stand near groundingDo not stand near grounding
locations for intentionallylocations for intentionally
grounded equipment/vehiclesgrounded equipment/vehicles
when contact with overheadwhen contact with overhead
wires is possiblewires is possible
• Insulation and barriersInsulation and barriers
6e
Clearance distances -Clearance distances -
overhead lines andoverhead lines and
vehicles/equipmentvehicles/equipment

21. IlluminationIllumination
Do not enter an area containingDo not enter an area containing
exposed energized parts unlessexposed energized parts unless
the area is illuminatedthe area is illuminated
Do not work near exposedDo not work near exposed
energized parts unless the areaenergized parts unless the area
is properly illuminatedis properly illuminated
Do not reach into blind areasDo not reach into blind areas
7a

22. Confined spacesConfined spaces
Barriers, shields, and insulationBarriers, shields, and insulation
provide protection fromprovide protection from
energized partsenergized parts
Secure doors, hinged panels toSecure doors, hinged panels to
prevent exposure to energizedprevent exposure to energized
partsparts
8a

23. Handling conductiveHandling conductive
materials/equipmentmaterials/equipment
Carefully handle conductiveCarefully handle conductive
materials or equipment thatmaterials or equipment that
come in contact with your bodycome in contact with your body
Prevent contact with exposedPrevent contact with exposed
energized partsenergized parts
9a

24. Handling conductiveHandling conductive
materials/equipmentmaterials/equipment
Carefully handle long,Carefully handle long,
conductive objects in areasconductive objects in areas
containing exposed energizedcontaining exposed energized
partsparts
• InsulationInsulation
• GuardingGuarding
• Materials handlingMaterials handling
9b

25. Nonconductive laddersNonconductive ladders
Portable ladders must havePortable ladders must have
nonconductive siderails if theynonconductive siderails if they
could contact exposedcould contact exposed
energized partsenergized parts
Metal ladders can conductMetal ladders can conduct
electricity and cause arcing andelectricity and cause arcing and
shocksshocks
10a

26. Hazards of conductiveHazards of conductive
apparelapparel
Conductive jewelry and clothingConductive jewelry and clothing
can cause arcing when exposedcan cause arcing when exposed
to energized partsto energized parts
Remove or cover conductiveRemove or cover conductive
jewelry and clothing tojewelry and clothing to
eliminate risk of conductivityeliminate risk of conductivity
11a

27. Procedures for usingProcedures for using
portable electricalportable electrical
equipmentequipment
12a

28. Proper handling of cordsProper handling of cords
Don’t raise or lower equipmentDon’t raise or lower equipment
by its cordby its cord
Don’t unplug the equipment byDon’t unplug the equipment by
pulling on its cordpulling on its cord
Don’t staple or fasten the cordDon’t staple or fasten the cord
so as to damage outer jacketso as to damage outer jacket
12b

29. Equipment inspectionEquipment inspection
Visually check for:Visually check for:
• loose partsloose parts
• deformed or missing partsdeformed or missing parts
• damaged jackets or insulationdamaged jackets or insulation
Inspect for internal defectives,Inspect for internal defectives,
such as pinched or crushedsuch as pinched or crushed
outer jacketsouter jackets
12c

30. Equipment inspectionEquipment inspection
Perform inspections prior toPerform inspections prior to
beginning each shiftbeginning each shift
Remove defective equipmentRemove defective equipment
from servicefrom service
Check the plug and receptacleCheck the plug and receptacle
mating configuration beforemating configuration before
connectingconnecting
12d

31. Flexible cordsFlexible cords
Flexible cords with grounding-Flexible cords with grounding-
type of equipment must have antype of equipment must have an
equipment grounding conductorequipment grounding conductor
12e

32. Flexible cordsFlexible cords
Never remove or alter the cord’sNever remove or alter the cord’s
grounding pingrounding pin
Never use an adapter with aNever use an adapter with a
missing grounding pinmissing grounding pin
12f

33. Types of electricalTypes of electrical
equipment and cordsequipment and cords
to be used near waterto be used near water
12g

34. Proper methods forProper methods for
plugging/unpluggingplugging/unplugging
Ensure hands are dryEnsure hands are dry
Never pull theNever pull the
plug out by theplug out by the
cordcord
12h

35. Proper methods forProper methods for
plugging/unpluggingplugging/unplugging
Handle cords and equipmentHandle cords and equipment
with insulating protectivewith insulating protective
equipment when the cordequipment when the cord
connector is wetconnector is wet
Secure locking-type connectorsSecure locking-type connectors
after making connectionafter making connection
12i

36. Circuit breakers andCircuit breakers and
circuitscircuits
Never use the following to openNever use the following to open
and close electrical circuitsand close electrical circuits
• FusesFuses
• Terminal lugsTerminal lugs
• Cable connectorsCable connectors
• Cable splice connectionsCable splice connections
13a

37. Circuit breakers andCircuit breakers and
circuitscircuits
Don’t manually re-energize aDon’t manually re-energize a
circuit without first determiningcircuit without first determining
if the equipment and circuit canif the equipment and circuit can
be safely energizedbe safely energized
Don’t modify overcurrentDon’t modify overcurrent
protective devicesprotective devices
13b

38. Circuit breakers andCircuit breakers and
circuitscircuits
Testing of electrical equipmentTesting of electrical equipment
should be performed byshould be performed by
qualified persons onlyqualified persons only
Keep flammables andKeep flammables and
combustibles away fromcombustibles away from
electrical equipmentelectrical equipment
13c

39. Protective equipmentProtective equipment
Personal protective equipmentPersonal protective equipment
includes:includes:
• HeadgearHeadgear
• Eye and face protectionEye and face protection
• Rubber insulating glovesRubber insulating gloves
• Rubber insulating sleevesRubber insulating sleeves
• Protective footwearProtective footwear
14a

40. Protective equipmentProtective equipment
Inspect protective equipment toInspect protective equipment to
ensure its reliability and safetyensure its reliability and safety
Use insulatedUse insulated
tools/equipmenttools/equipment
around exposedaround exposed
energized partsenergized parts
14b

41. Protective equipmentProtective equipment
Protective shields, barriers,Protective shields, barriers,
insulating materials protectinsulating materials protect
employees from:employees from:
• accidental contactaccidental contact
• dangerousdangerous
electricalelectrical
heatingheating
• arcingarcing
14c

42. Protective equipmentProtective equipment
Normally enclosed live partsNormally enclosed live parts
must be guarded duringmust be guarded during
maintenancemaintenance
14d

43. Alerting techniquesAlerting techniques
Signs and markingsSigns and markings
BarricadesBarricades
AttendantsAttendants
15a

44. Summary of key pointsSummary of key points
DefinitionsDefinitions
De-energized meansDe-energized means
locked/tagged outlocked/tagged out
Safe distances for clearancesSafe distances for clearances
between workers and energizedbetween workers and energized
lineslines
16a

45. Summary of key pointsSummary of key points
Nonconductive laddersNonconductive ladders
Nonconductive clothingNonconductive clothing
Proper use of cords, plugs,Proper use of cords, plugs,
receptaclesreceptacles
16b

46. Summary of key pointsSummary of key points
Proper use of electricalProper use of electrical
equipment aroundequipment around
flammables/combustiblesflammables/combustibles
Protective equipmentProtective equipment
Alerting techniquesAlerting techniques
16c