ECM_CODE WATCH_
A Penton Media Property
November 3, 2011
Vol. IX, No. 21

If you want to view this on the web go to:
http://enews.penton.com/enews/ecm/v/136

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CODE NEWS UPDATE

--Iowa Adopts 2011 NEC
According to a recent Code Alert issued on September 23 by the National
Electrical Manufacturers Association (NEMA), the Iowa State Electrical
Board voted to adopt the 2011 NEC with amendments. The effective date is
Jan. 1, 2012. Visit the NEMA website (
http://www.nema.org/stds/fieldreps/codealerts/20110923ia.cfm ) for a
more detailed review of this adoption news.




CODE VIOLATIONS

--What's Wrong Here?
By Joe Tedesco
Think you know how this installation violates the NEC? Visit EC&M's
website (
http://ecmweb.com/nec/whats_wrong_here/whats_wrong_110311/?cid=nl_codewatch
) to see the answer.
Hint: Too close for comfort



--Moving Violations
Caught by the inspector!
Check out our newest Moving Violations video. In this episode (
http://ecmweb.com/nec/moving_violations/moving-violations-11/ ), Joe
runs across a unique trash bin.




CODE QUANDARIES

--Code Q&A
By Mike Holt
Q. What are the acceptable wiring methods for photovoltaic (PV) circuits
inside buildings/structures?
Visit EC&M's website (
http://ecmweb.com/nec/code_qa/code_qa_110311/?YM_MID='mmid'&YM_RID='email'
) to see the answer.




CODE CHALLENGE

--Code Quiz
By Steven Owen
When calculating the ampacity of a common neutral conductor installed as
part of a circuit for an outside feeder or branch circuit, the ampacity
of the common neutral conductor shall comply with which of the
following?Note: This applies to lighting equipment installed outdoors.
    *It shall always be the same size as the largest ungrounded phase
conductor.
    *The maximum net calculated load current between the neutral
conductor and all ungrounded conductors connected to any one phase of
the circuit.
    *The maximum net calculated load current between the neutral
conductor and the equipment grounding conductor.
    *The minimum net calculated load current between the neutral
conductor and all ungrounded conductors connected to any one phase of
the circuit.
Visit EC&M's website (
http://ecmweb.com/nec/code_quiz/code_quiz_110311/?YM_MID='mmid'&YM_RID='email'
) for the answer and explanation.










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