1. The High Voltage Underground Cable Technician Inspector Training
Randy Larson
Apprenticeship Lineworker Instructor
Chippewa Valley Technical College

2. Why an Inspection Program? Lack of a Hazard Recognition Program
CO-Feb00.ppt
12/30/2018 9:05:05 AM
Why an Inspection Program? Lack of a Hazard Recognition Program
Increased maintenance costs
System down time
Poor public relations
Expensive insurance claims and lawsuits
Lack of Hazard Recognition Program:
Increase maintenance costs
System down time
Poor public relations
Expensive insurance claims and lawsuits
FXF presentation

3. How can I as an employee help control costs and save lives?
CO-Feb00.ppt
12/30/2018 9:05:05 AM
How can I as an employee help control costs and save lives?
Recognize, Report or Repair Hazards
How can we as employees help control costs and save lives? By recognizing and reporting hazards that may exist on your system you can help control costs and save lives.
FXF presentation

4. A Uncoated, Compact Stranded Aluminum Conductor
B Strand Screen-Extruded Semiconducting EPR
C - Insulation- EPR, ethylene-propylene rubber (EPR) based. Okoguard insulation, with the distinctive red color and a totally integrated EPR system,
D – Semi-con The PVC jacket supplied with this cable is mechanically rugged and has excellent resistance to oil, acids and most chemicals.
Concentric conductor
Jacket

5. Safety Rules for Underground Systems

6. Safety Manual

7. Safety Manual

8. Safety Manual

9. Safety Manual

10. Basic Underground Installations and Equipment

12. Basic Feed Through Padmount Transformer

13. Inside of a Padmount

14. What is a Basement?

15. What is a Basement?

16. Single Phase Junction Box

17. Three phase Junction Box

18. Fiberglass Junction Box

19. Fiberglass Junction Box

20. Fiberglass Junction Box

21. Fiberglass Junction Box

24. Tagging

25. Cable Identification NESC 341 B3a, Identification
1. Cables shall be permanently identified by tags or otherwise at each manhole or other access opening of a conduit system.
2. All identification shall be of a corrosion resistant material for the environment.
3. All identification shall be of quality and located so as to be readable with auxiliary lighting.

26. Tagging

27. Single Phase Transformer – Feed Through

28. Three Phase Transformer – Feed Through

29. Three Phase Transformer – Feed Through, Primary Side

30. Three Phase Transformer – Feed Through,Transformer Information

31. Three Phase Transformer

32. Three Phase Transformer – Lock for Primary Side

33. Three Phase Transformer- Secondary Side

34. Three Phase Transformer- Secondary Side Bushing Identification

35. Three Phase Transformer - Nameplate

36. Three Phase Riser Pole

37. Three Phase Riser Pole – Close up

38. Primary Terminator – “Cold Shrink” Installation

39. Primary Terminator – “Heat Shrink” Installation

42. Live-Front Padmount Transformer

43. Live-Front Padmount Transformer

44. Live-Front Padmount Transformer Nameplate

45. Three Phase Trans-closure or “doghouse”

46. Padmounted Switchgear

47. Padmounted Switchgear

48. Switchgear Nameplate Information

49. Padmounted Switchgear
Locked cover protecting
switch and a handle

50. Operating Switch Handle
Hasp for locking cover closed

51. Operating Switch Handle
To close

52. Padmounted Switchgear
Compartment Two
Compartment One

53. Padmounted Switchgear – One Side of Cabinet

54. Fiberglass panel shields
Compartment 2

55. Padmounted Switchgear – Other Side
Compartment 4
Compartment 2
Compartment 3

56. Padmount Switchgear

57. Switch gear blades – Open

58. Switchgear Blades – Closed
Switch blades

59. Padmount Switchgear

61. Internal Equipment and Hardware

63. 200 Amp Loadbreak Elbow with Testpoint

64. 200 Amp Loadbreak Elbow With Testpoint

65. Elbow Swelling

66. 200 Amp Loadbreak Elbow Without Testpoint

67. Cut-away View of an Elbow

68. Cut-away View of an Elbow

69. MOV Elbow Arrestor

70. Porcelain Silicon Carbide Lightening Arrestor

71. Porcelain Silicon Carbide Lightening Arrestor

72. Fault Indicator – Three Phase

73. Fault Indicators
This clip opens, cable is placed in between current transformer (white box) and gray assembly.

74. Fault Indicators
Red flag shows after a high current is detected on UD cable. To reset – re-energize cable at normal operating voltage and current

75. Module Elbow Arrestor

76. Module Elbow Arrestor

77. Portable Two-Way
This red covers are called “Dust Caps” Not to be on the module while the module is energized!

78. Dummy Cap
The Drain wire – “dissipates” the static build up on the cap. The “cable” (drain wire) is to be attached to ground.
A dummy cap protects dirt and foreign objects from getting in or on the module.

79. Dummy Cap
The probe is just a conductor with no fiberglass arc snuffer on the end.

80. OSHA Requirements Minimum Approach Distance MAD

81. OSHA Requirements Minimum Approach Distance MAD
Put on and take off rubber insulating gloves in a position where the worker cannot reach into MAD.
OSHA Requirements Minimum Approach Distance MAD

82. Approach Distance For work near live parts of more than 600 volts but less than 72.5 kV, work from a position where the worker cannot reach into MAD, except: - wearing rubber insulating gloves, - protected by insulating equipment, - using live-line tools, and - performing live-line barehand work. §§ (l)(5)(ii) & (d)(2)

83. Electric Arc Protection
Assess workplace for hazards from flames or electric arcs
If there is exposure, estimate incident energy
Prohibit clothing when incident energy could ignite clothing
Require FR under certain conditions
Select clothing with an arc rating greater than the estimated incident energy
§ (l)(8) & § (g)

84. Electric Arc Protection
Requires FR clothing for incident energy exceeding 2.0 cal/cm2
Protection for head and face
Starts at 9 cal/cm2 for single-phase arcs in air
Starts at 5 cal/cm2 for other exposures
Protection for hands (rubber gloves with protectors or, for exposures ≤ 14 cal/cm2, heavy-duty (12-oz) leather work gloves)
Protection for feet (heavy work shoes or boots)
§ (l)(8) & § (g)