Code issues [RE-wrenches]

[Bob-O Schultze, Electron Connection]

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Bill,
No tomatoes here, only flowers-especially over the grounding issues 
in #3. Pity that the NEC and J.Wiles does not subscribe to our views. 
I'm about to take the first Renewable Energy Technician (RET) test 
offered in Oregon. One of the sources for the test material is John's 
"accepted Practices". So I'm forced to relearn some things the wrong 
way, pass the test, then go back to what I know works best. Makes me 
think Enron is involved here somewhere...
Best, bob-O

>
>It would have been really difficult to choose four more contentious issues
>than the ones you have chosen in your examples.
>
>1. Lockable disconnects are a utility union lineman requirement and is not
>necessary unless the union says it is.
>
>2. Battery cables should be rated for whatever their use is (wet, acid,
>conduit, etc...)
>
>3. You've probably read all the stuff on grounding. System grounding does
>not make a system  safer--but neither does ungrounding. The key is design. A
>well-designed ungrounded system is probably better than a well-designed
>grounded system.
>
>4. This relates to #3. Every ungrounded system must have a means of
>detecting ground faults (fairly easy to do). Every grounded system operating
>above 50 volts should have ground fault protection (in my humble opinion).
>So leave out 12 and 24-volt grounded systems--everything else needs it.
>
>Now if you'll excuse me, I need to retreat to my bunker to get out of the
>way of all the flying tomatoes.
>
>My collegue Chuck Whitaker and I have worked on codes and standards more
>than most here in the states, and I'll warn you, it is a thankless but
>necessary job. Try to think down the road a bit and make judgements on the
>good of the industry as a whole. You'll do just fine.

-- 
Bob-O Schultze, Electron Connection
PO Box 203, Hornbrook, CA 96044
800.945.7587 or 530.475.3402
fax 530-475-3401
www.electronconnection.com

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