will try to post here the workbook errata for the grounding book. if it doesn't work you might want to check with Greg M or Sasha for a copy.
NJATC Grounding and Bonding, 2008
Lesson 1, Learning Objectives, Page 1 Question #0
Close the space between the "s" and the "c" in learning objective 5. The word should be "scenario".
Lesson 1, Questions, Page 4 Question #18
The word "described" should be changed to "describe"
Lesson 4, Questions, Page 15-16 Question #3
There is no question #3 in the workbook.
Add a new question 3 as follows:
3. A premises wiring system supplied by an ungrounded service shall have all of the following except a
_____________ conductor at each service.
a. equipment grounding conductor
b. grounding electrode conductor
c. grounding electrode
d. grounded conductor Key 250.24(E)
Lesson 7, Questions, Page 30 Question #6
Change choice "c" to "250.66"
Lesson 7, Questions, Page 32 Question #22
In the instructors guide answer to this question the last line should be changed to the following: "Table 250.66-
266,200 cmil requires 2 AWG".
Lesson 7, Questions, Page 32 Question #22
In the answer given, from step 3 in the answer to step 4 there is a misprint, the answer changes from 266,200 cmil
in step 3 to 255,200 cmil in step 4. The correct answer is 266,200 from step 3.
Lesson 9, Questions, Page 41 Question #1
Change 250.18 to 250.118 in the text.
Lesson 9, Questions, Page 42 Question #9
Add the following text after the word "metallic" and before the ______.
"raceway that is included in the types provided in 250.118?"
Lesson 9, Questions, Page 43 Question #19
Change lighting pane to lighting panelboard.
Lesson 9, Questions, Page 44 Question #26
Revise choice "c" as follows, "Where used to connect equipment where flexibility is NOT necessary after
installation"
Lesson 10, Questions, Page 49 Question #12
Change the word "sparate" to "separate"
Lesson 11, Questions, Page 54 Question #23
Add an Instructor Note.
J210IG.H page 2
INSTRUCTOR NOTE: Calculate as follows:
66360 (cm 2 AWG from Table 8) ÷ 29.1 (multiplier for bare conductor withstand ratings based on ICEA information
Soares Book Chapter 11, also see Table 11-14 column 7)
66360 ÷ 29.1 = 2280.4
Lesson 13, Questions, Page 64 Question #2
Revise choice 5 as "Rod and pipe electrodes"
Lesson 13, Questions, Page 66 Question #18
In the last part of the question, the voltage given is 480Y/222 volt. It should be 480Y/277 volt.
Lesson 15, Questions, Page 78 Question #24
Change choice b. to 208Y/120-volts?
Lesson 21, Questions, Page 118 Question #46
The NEC reference given in the answer is 250.122(F)(1), this is wrong. That NEC section does not exist, it should
be 250.122(F).
