Lesson 228

228RW

100

228 RW 

Question #1

30amps

408.36(A)

200

228 RW 

Question #12

Correctional Facilities

406.12

300

228 RW 

Question #10

1/2"

410.116(A)(1)

400

228 RW 

Question #5

Ungrounded

404.2(A)

500

228 RW 

Question #2

4' above the floor operating on 24v

410.150 (C) (8)

228.1

100

228.1

Question #4

Thermoset

400.4 (table)

200

228.1

Question #1

run through holes in walls

400.12

300

228.1

Question #7

Section 400.5

400

228.1

Question #3

Any Of These

400.14

500

228.1

Question #11

18 AWG

400.16

228.2

100

228.2

Question #3

12"-3"= 9"

404.3 

312.6 (B) Table Note #2

200

228.2

Question #6

300v

404.8(B)

300

228.2

Question #9

1 hot / 1 neutral / 1 egc / 1 iso grnd = 4

406.3 (E)

400

228.2

Question #18

Front to back, top to bottom, & left to right

408.3 (E)(1)

500

228.2

Question #16

6'7"

404.8(A)

228.3

100

228.3

Question #26

8'

410.10(D)(1)

200

228.3

Question #7

True

410.10(D)

300

228.3

Question #1

3"

410.116(B)

400

228.3

Question #20

20'

410.30 (B)(1) ex 2

500

228.3

Question #17

0"

410.16(A)(1) & (2)

228.4

100

228.4

Question #3

12500/240 = 52amps

52 x 125% = 65a - 6awg

200

228.4

Question #24

(8200/240) x (125%) = 42.71 or 43amps  - 8awg

300

228.4

Question #20

I = (19700 x 125%) / 240 = 102.6amps - 2awg

400

228.4

Question #7

18 - 36

422.16 (B)(1)(1)

500

228.4

Question #16

R=E^2 /P  -  (240^2) / 15000 =3.84ohms

I=E/R  -  240/3.84 = 62.5amps

62.5a x 125% = 78.125a

100a Safety Switch