lineman apprenticeship
Study online at https://quizlet.com/_i2150i
1. what is the spread on a 3 roller rack: 8"
2. what is the spread on a cut out arm: 8"
3. what is the spread on a line arm: 8"
4. what is the spread on a dead end arm: 9"
5. what is the spread on a 4 roller rack: 16"
6. what is the spread on a steel arm: 5"
7. what are the measurements on a lindsey on a 10' and 12' arm: 10'= 35"
12'= 40"
8. what is the spread on a 15-50 kva tub: 12"
9. what is the spread on a 75-100kva tub: 24"
10. what is the spread on a bank bracket: 24"
11. wire size for a 15 kva tub: #2 or 2/0
12. wire size for a 25 kva tub: 1/0 or 2/0
13. wire size for a 37.5 kva tub: 2/0
14. wire size for a 50 kva tub: 4/0
15. wire size for a 75 kva tub: 350
16. wire size for a 100 kva tub: 500
17. turns ratio for 4kv: 10 to 1 and 20 to 1
18. turns ratio for 12kv: 30 to 1 and 60 to 1
19. what is the clearance from comm to secondary rack construction: 6'
20. what is the clearance from comm to arm construction: 4'
21. what is the clearance comm with guard arm to secondary rack: 4'
22. what is the clearance from rack to primary: 6' burbank does 9
23. what is the formula for a single phase full load current: kva / circuit voltage
24. what is the formula for a 3 phase full load current: kva/ circuit voltage x 1.73
25. A closed delta is ___% efficient: 86.6%
26. A open delta is ___% efficient: 57.7%
27. What does XLP and EPR refer to?: Crosslink poly, Ethyl Propelyn rubber
28. How much of a steel riser has to be steel?: 10 feet
29. What does URD mean?: Underground residential distribution
30. How are cables mounted to walls in manholes?: Rack Iorns, porcelan iorns, cable hooks
31. What would a number on a manhole cover indicate?: 4 or 12 kv
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Study online at https://quizlet.com/_i2150i
1. what is the spread on a 3 roller rack: 8"
2. what is the spread on a cut out arm: 8"
3. what is the spread on a line arm: 8"
4. what is the spread on a dead end arm: 9"
5. what is the spread on a 4 roller rack: 16"
6. what is the spread on a steel arm: 5"
7. what are the measurements on a lindsey on a 10' and 12' arm: 10'= 35"
12'= 40"
8. what is the spread on a 15-50 kva tub: 12"
9. what is the spread on a 75-100kva tub: 24"
10. what is the spread on a bank bracket: 24"
11. wire size for a 15 kva tub: #2 or 2/0
12. wire size for a 25 kva tub: 1/0 or 2/0
13. wire size for a 37.5 kva tub: 2/0
14. wire size for a 50 kva tub: 4/0
15. wire size for a 75 kva tub: 350
16. wire size for a 100 kva tub: 500
17. turns ratio for 4kv: 10 to 1 and 20 to 1
18. turns ratio for 12kv: 30 to 1 and 60 to 1
19. what is the clearance from comm to secondary rack construction: 6'
20. what is the clearance from comm to arm construction: 4'
21. what is the clearance comm with guard arm to secondary rack: 4'
22. what is the clearance from rack to primary: 6' burbank does 9
23. what is the formula for a single phase full load current: kva / circuit voltage
24. what is the formula for a 3 phase full load current: kva/ circuit voltage x 1.73
25. A closed delta is ___% efficient: 86.6%
26. A open delta is ___% efficient: 57.7%
27. What does XLP and EPR refer to?: Crosslink poly, Ethyl Propelyn rubber
28. How much of a steel riser has to be steel?: 10 feet
29. What does URD mean?: Underground residential distribution
30. How are cables mounted to walls in manholes?: Rack Iorns, porcelan iorns, cable hooks
31. What would a number on a manhole cover indicate?: 4 or 12 kv
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