Module Eight - Conductor Terminations and Splices - NCCER Substation Slides

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Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Conductor Terminations and Splices
Module Eight – 26208-11

2. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 1
Upon completion of this module, you will be able to do the following:
1. Describe how to make a good conductor termination.
2. Prepare cable ends for terminations and splices and connect using
lugs or connectors.
3. Train cable at termination points.
4. Understand the National Electrical Code® (NEC®) requirements for
making cable terminations and splices.
5. Demonstrate crimping techniques.
6. Select the proper lug or connector for the job.
Objectives

3. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 2
Under supervision of the instructor, you should be able to:
1. Terminate conductors using selected crimp-type and mechanical-
type terminals and connectors.
2. Terminate conductors on a terminal strip.
3. Insulate selected types of wire splices and/or install a motor
connection kit.
Performance Tasks

4. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 3 Table 1 – Dimensions of Common Wire Sizes

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
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Research
Slide 4 Figure 4 – Heavy-duty cable stripper

6. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 5 Figure 5 – Types of cable stripping

7. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 6 Figure 7 – Chisel point on a conductor

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 7 Figure 9 – Proper stripping length

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
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Research
Slide 8 Figure 11 – Various mechanical compression connectors

10. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 9 Figure 12 – Method of installing heat-shrink insulators

11. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 10 Table 2 – Tubing Selector Guide

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 11 Figure 14 – Basic crimp connector structure

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 12 Figure 15 – Standard tongue styles of crimped connectors

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 13 Table 3 – Typical Color Codes

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Education and
Research
Slide 14 Figure 16 – Mechanical strength versus electrical
performance of a crimped connector

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Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 15 Table 4 – Recommended Tightening Torques for Various Bolt Sizes

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Education and
Research
Slide 16 Figure 24 – Weatherproof connector used with Type MC cable

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 17 Figure 26 – Indent position

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 18 Figure 27 – Crimp centering

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 19 Figure 28 – Conductor positioning

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 20 Figure 29 – Terminal blocks

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 21 Figure 30 – Routing cabling

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 22 Figure 31 – Terminal bend radius

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 23 Table 5 – Minimum Wire Bending Space for Conductors Not Entering
or Leaving Opposite Wall [Data from NEC Table 312.6(A)]

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 24 Figure 34 – Bending space at terminals is measured in a straight line

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 25 Figure 35 – Conductors entering an enclosure opposite the conductor terminals

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 26 Table 6 – Minimum Wire Bending Space for Conductors Entering
or Leaving Opposite Wall [Data from NEC Table 312.6(B)]

28. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 27 Figure 37 – MCC fed directly from a transformer secondary

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Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 28 Figure 38 – Typical method for taping motor lug connections

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Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 29 Figure 39 – Typical method of taping a split-bolt connector

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Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
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Research
Slide 30 Figure 40 – Stub and in-line splice connections

32. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 31 Figure 41 – Motor connection kits installed on splices

33. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 32
Supplemental Art

34. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 33

35. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 34 Figure 1 – Wire stripper/crimper

36. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 35 Figure 2 – Wire strippers

37. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 36 Figure 3 – Ratchet-type cable cutter

38. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 37 Figure 6 – Round cable slitting and ringing tool

39. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 38 Figure 8 – Cable and wire stripping tools

40. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 39 Figure 10 – Crimp-on wire lugs

41. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 40 Figure 13 – Fire alarm and instrumentation cable

42. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 41 Figure 17 – Hand crimpers

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 42 Figure 18 – Leveraged crimping tool

44. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 43 Figure 19 – Crimping tools used to crimp large connectors

45. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 44 Figure 20 – Battery-operated crimping tool

46. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
for Construction
Education and
Research
Slide 45 Figure 21 – Corded crimping tool

47. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 46 Figure 22 – Universal crimping tool

48. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 47 Figure 23 – Multiple crimps

49. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 48 Figure 25 – Labeled and terminated control cable

50. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 49 Figure 32 – Ratchet bender

51. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 50 Figure 33 – Hydraulic bender

52. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Education and
Research
Slide 51 Cable Strippers

53. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 52 Cutting Large Power Cable

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Research
Slide 53 Tightening Compression Connector Screws and Bolts

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
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Slide 54 Electrical Tape

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Power Line Worker Level Two: Substation – Conductor Terminations and Splices
Module 26208-11
National Center
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Research
Slide 55