1. Electrical Safety-Qualified Person

2. Energized exposed electrical parts
Exposed parts
Live or energized parts
De-energized parts 1a

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

4. Working near exposed parts
Only qualified workers can work on or near exposed electrical parts 2a

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

6. Working near exposed parts
Lockout/tagout must be performed by a qualified person
Who is considered a qualified person? 2c

7. Working near exposed parts
Types of excluded electrical work:
general, transmission, distribution installations
communications installations
vehicle installations
railway installations 2d

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

9. Nominal voltage of exposed live parts
Nominal voltages are values assigned to circuits to designate its voltage class
120/240
480Y/277
600 4a

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

11. Clearance distances - Unguarded/energized overhead lines
The required distance between the workers and a conductive object that they could contact 5a

12. Clearance distances - Unguarded/energized overhead lines
Used when working below unguarded, energized lines 5b

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

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

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

16. Clearance distances - Unguarded/energized overhead lines
Voltages 50 kv or less, the clearance distance is 10 feet
Voltages greater than 50kv, the clearance is 10 feet plus 4 inches for every 10 kv over 50 kv 6a

17. Clearance distances - Unguarded/energized overhead lines
When the vehicle is in transit, and the structure is lowered:
the clearance distance is 4 feet for 50 kv or less; or
4 feet plus 4 inches for every 10 kv over 50 kv for voltage greater than 50 kv 6b

18. Clearance distances - Unguarded/energized overhead lines
Insulating barriers
When installed but not attached to a vehicle, the clearance distance is the designed working dimensions of the barrier
Refer to Table S-5 for aerial lift clearance distances 6c

19. Clearance distances - Unguarded/energized overhead lines
Employees must not come into contact
with vehicles/equipment under an
energized line unless the:
employee is wearing proper PPE
equipment/vehicle is located so that no uninsulated part can provide a conductive path to employees 6d

20. Clearance distances - Unguarded/energized overhead lines
Do not stand near grounding locations for intentionally grounded equipment/vehicles when contact with overhead wires is possible
Insulation and barriers 6e

21. Illumination
Do not enter an area containing exposed energized parts unless the area is illuminated
Do not work near exposed energized parts unless the
area is properly
illuminated
Do not reach into blind areas 7a

22. Confined spaces
Barriers, shields, and insulation provide protection from energized parts
Secure doors, hinged panels to prevent exposure to energized parts 8a

23. Handling conductive materials/equipment
Carefully handle conductive materials or equipment that come in contact with your body
Prevent contact with exposed energized parts 9a

24. Handling conductive materials/equipment
Carefully handle long, conductive objects in areas containing exposed energized parts
Insulation
Guarding
Materials handling 9b

25. Nonconductive ladders
Portable ladders must have nonconductive siderails if they could contact exposed energized parts
Metal ladders can
conduct electricity
and cause arcing
and shocks
10a

26. Hazards of conductive apparel
Conductive jewelry and clothing can cause arcing when exposed to energized parts
Remove or cover conductive jewelry and clothing to eliminate risk of conductivity
11a

27. Procedures for using portable electrical equipment

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

29. Equipment inspection Visually check for:
loose parts
deformed or missing parts
damaged jackets or insulation
Inspect for internal defectives, such as pinched or crushed outer jackets
12c

30. Equipment inspection Perform inspections prior to beginning each shift
Remove defective equipment from service
Check the plug and receptacle mating configuration before connecting
12d

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

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

33. Types of electrical equipment and cords to be used near water
Equipment must be approved
for use in these types of
locations.
12g

34. Proper methods for plugging/unplugging
Ensure hands are dry
Never pull the plug out by the cord
12h

35. Proper methods for plugging/unplugging
Handle cords and equipment with insulating protective equipment when the cord connector is wet
Secure locking-type connectors after making connection
12i

36. Circuit breakers and circuits
Never use the following to open and close electrical circuits
Fuses
Terminal lugs
Cable connectors
Cable splice connections
13a

37. Circuit breakers and circuits
Don’t manually re-energize a circuit without first determining if the equipment and circuit can be safely energized
Don’t modify overcurrent protective devices
13b

38. Circuit breakers and circuits
Testing of electrical equipment should be performed by qualified persons only
Keep flammables and combustibles away from electrical
equipment
13c

39. Protective equipment Personal protective equipment includes: Headgear
Eye and face protection
Rubber insulating gloves
Rubber insulating sleeves
Protective footwear
14a

40. Protective equipment
Inspect protective equipment to ensure its reliability and safety
Use insulated tools/equipment around exposed energized parts
14b

41. Protective equipment
Protective shields, barriers, insulating materials protect employees from:
accidental contact
dangerous electrical heating
arcing
14c

42. Protective equipment
Normally enclosed live parts must be guarded during maintenance
14d

43. Alerting techniques
Signs and markings
Barricades
Attendants
15a

44. Summary of key points Definitions De-energized means locked/tagged out
Safe distances for clearances between workers and energized lines
16a

45. Summary of key points Nonconductive ladders Nonconductive clothing
Proper use of cords, plugs, receptacles
16b

46. Summary of key points
Proper use of electrical equipment around flammables/combustibles
Protective equipment
Alerting techniques
16c