Howdy first year apprentices-

Only three assignments left and the class average is only 66% complete.  Of course two people with 0% turned in skews the numbers a bit but I was hoping for better results since it was the group that asked for points to be assigned.

On a brighter note there have been great questions posted.  Here are a couple.

Q:This may seem like a silly question and I have laid almost 2 miles of ground cable but what exactly does a ground cable do in the event of electrical shock?
A: Check the NEC, ART 250, Section 250.2-Definitions.  Piecing together a couple of thoughts there, grounding systems-stabilizes the voltage to ground during normal operation and facilitates the operation of overcurrent protection.  Grounding equipment limits the voltage to ground on these materials.  In other words, if you are touching a piece of electrical equipment and a fault happens; you, the equipment and the ground you are standing on will be close enough to the same potential as to avoid shock.  Keeping all equipment, the building, and other systems like plumbing bonded together avoids arcing and sparking during events like lightning strikes, thus avoiding fires as well as shock.

Q:When it says due date, Nov 25 how do we submit homework?
A:You aren't submitting homework, you are answering specific questions.  The questions are not too difficult.  For example "I have met my goals for 9 DEC" just means yes, or no, did you do the homework you wanted to accomplish that week.  Use the form, email, fax, leave a phone message, leave a note in our mailbox, whatever you want to do BEFORE THE DEADLINE to answer that simple question.


Greg McMurphy
Instructor
LU112-NECA Electrical Training Center
Kennewick, WA 99336