The Lineman's and Cablemans Handbook
1. Describe the electron theory. Chap. 1, p. 1 Electrons a are negative charged. They surround the neutron and protons that are
negative charged
2. Define an electric current. Is voltage witches pushes the electrons down the cable
3. Define a conductor. A material that can give and take electrons
4. Define an insulator. A material that is full of electrons and cant pass any
5. What are three examples of good insulators? Fiberglass, glass, polimer
6. What is the unit of electric current? Amps
7. What instrument is used to measure electric current? Ammeter
8. What is the unit of electric pressure? Volts Chap. 1, p. 6
9. Draw a schematic diagram to illustrate instruments to Chap. 1, p. 7
a single-phase motor to measure the proper
methods of connecting electric current and the
electric pressure supplied to the motor.
10. What is the unit of electric power? Watts = volts * Amps Chap. 1, p. 8
11. A registers watts or kilowatts, and by reading it one can Wattmeter Chap. 1, p. 9
tell how much power any piece of apparatus is
consuming.
, 12. What does the product of power and time equal? Watt hour Chap. 1, p. 9
13. What is the unit of resistance for wire? Ohms Chap. 1, p. 11
14. What is the formula for Ohm's law? Current = Volts/Resistance or Amps = Volts/Ohms Chap. 1, p. 11
15. Define an alternating current. It goes up and down Chap. 1, p. 12
16. What is the unit of an alternating-current frequency? Cycles Chap. 1, p. 13
17. Define the power factor of an alternating- The ratio of actual power to the product of volts times amps Power factor = Watts /
current circuit. Volts * Amps Chap. 1, p. 19
18. Describe the theory of operation of an electric You have wire wound around a core with a high voltage put on it, the high voltage
transformer. induces a voltage onto the secondary coil Chap. 1, p. 24
19. Describe a typical electric system, itemizing the Generation, transmission, sub Transmision, Substation, Distrabution, Secondaries to
major parts of the system. consumers Chap. 2, р. 33
20. What is a transmission line? A line that is over 69,000 volts to 765,000 volts Chap. 2, p. 40
21. How do the voltage levels of transmission and Chap. 2, p. 40
subtransmission lines compare?
22. When is a direct-current transmission line used? Used when its long distance and high voltage. Or when you need to connect two
separate AC systems Chap. 2, p. 40
23. List the functions that can be accomplished in an Switch generators, equipment, and circuits or lines, change voltages, Chap 2. p. 42
electric substation.
24. List the component parts of the electric distribution Substation, feeder circuits, switches, protective equipment, primary circuits,
system. distribution transformers, secondaries, services Chap. 2, p. 45
25. Describe a typical distribution feeder circuit. They can handle 10 MVA or more have switches so you can use different
breakers if needed Chap. 2, pp. 45 and 46
26. What is a primary circuit? 600 - 34,500 volts is high voltage. Its the main circuit that everything else branches
off of. If you tap off it it usually has some type of protection being a fuse or
recloser Chap. 2, p. 53
27. What is the purpose of the distribution transformer To drop voltage from primary to secondary voltages Chap. 2, p. 54
installed on an electric distribution circuit?
28. Describe an electric service. A service is the wire going from the transformer to the consumer. It's voltage is
from 120 to 480 Chap. 2, p. 58
29. What functions are accomplished in an electric Chap. 3, p. 68
substation?
1. Describe the electron theory. Chap. 1, p. 1 Electrons a are negative charged. They surround the neutron and protons that are
negative charged
2. Define an electric current. Is voltage witches pushes the electrons down the cable
3. Define a conductor. A material that can give and take electrons
4. Define an insulator. A material that is full of electrons and cant pass any
5. What are three examples of good insulators? Fiberglass, glass, polimer
6. What is the unit of electric current? Amps
7. What instrument is used to measure electric current? Ammeter
8. What is the unit of electric pressure? Volts Chap. 1, p. 6
9. Draw a schematic diagram to illustrate instruments to Chap. 1, p. 7
a single-phase motor to measure the proper
methods of connecting electric current and the
electric pressure supplied to the motor.
10. What is the unit of electric power? Watts = volts * Amps Chap. 1, p. 8
11. A registers watts or kilowatts, and by reading it one can Wattmeter Chap. 1, p. 9
tell how much power any piece of apparatus is
consuming.
, 12. What does the product of power and time equal? Watt hour Chap. 1, p. 9
13. What is the unit of resistance for wire? Ohms Chap. 1, p. 11
14. What is the formula for Ohm's law? Current = Volts/Resistance or Amps = Volts/Ohms Chap. 1, p. 11
15. Define an alternating current. It goes up and down Chap. 1, p. 12
16. What is the unit of an alternating-current frequency? Cycles Chap. 1, p. 13
17. Define the power factor of an alternating- The ratio of actual power to the product of volts times amps Power factor = Watts /
current circuit. Volts * Amps Chap. 1, p. 19
18. Describe the theory of operation of an electric You have wire wound around a core with a high voltage put on it, the high voltage
transformer. induces a voltage onto the secondary coil Chap. 1, p. 24
19. Describe a typical electric system, itemizing the Generation, transmission, sub Transmision, Substation, Distrabution, Secondaries to
major parts of the system. consumers Chap. 2, р. 33
20. What is a transmission line? A line that is over 69,000 volts to 765,000 volts Chap. 2, p. 40
21. How do the voltage levels of transmission and Chap. 2, p. 40
subtransmission lines compare?
22. When is a direct-current transmission line used? Used when its long distance and high voltage. Or when you need to connect two
separate AC systems Chap. 2, p. 40
23. List the functions that can be accomplished in an Switch generators, equipment, and circuits or lines, change voltages, Chap 2. p. 42
electric substation.
24. List the component parts of the electric distribution Substation, feeder circuits, switches, protective equipment, primary circuits,
system. distribution transformers, secondaries, services Chap. 2, p. 45
25. Describe a typical distribution feeder circuit. They can handle 10 MVA or more have switches so you can use different
breakers if needed Chap. 2, pp. 45 and 46
26. What is a primary circuit? 600 - 34,500 volts is high voltage. Its the main circuit that everything else branches
off of. If you tap off it it usually has some type of protection being a fuse or
recloser Chap. 2, p. 53
27. What is the purpose of the distribution transformer To drop voltage from primary to secondary voltages Chap. 2, p. 54
installed on an electric distribution circuit?
28. Describe an electric service. A service is the wire going from the transformer to the consumer. It's voltage is
from 120 to 480 Chap. 2, p. 58
29. What functions are accomplished in an electric Chap. 3, p. 68
substation?
