| CONTENTS
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Two New NEC Adoptions
What's
Wrong
Here?
Code Q&A
Code Quiz
Understanding and Applying the 2005
NEC
NEC Sessions Scheduled
for 2006 NFPA World Safety Conference & Exposition
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About this Newsletter
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Code News Update
Two New NEC Adoptions
The city of Dallas and the state of Georgia recently
adopted the 2005 National Electrical Code as their basic wiring
standard with amendments.
The city of Dallas amendments, which were recommended by the North
Central
Texas Council of Governments, include:
- a new exception to 230.71(A), which allows for more than six
disconnects to be grouped at one location.
- a new exception to 300.11, which provides limited support of
raceways and cables by ceiling grid support wire.
- a change to 310.15(B)(6), which (according to the council) provides
a more reasonable margin of safety for dwelling service and feeder
conductor allowable ampacities.
- a change to 500.8(A)(1), which eliminates some text deemed
redundant
with the definition of "identified" in Chapter 1.
The state of Georgia amendments, which were recommended by the
Georgia
State
Codes Advisory Committee, include:
- a change to 210.8(B), which requires GFCI protection for
receptacles
located within 6 feet of a sink or basin, excluding those listed in
Section 517.21.
- a change in the wording of 210.12(B).
Both adoptions had an effective date of January 1, 2006.
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Code Challenge
What's Wrong Here?
By Joe Tedesco
Think you know how this installation violates the NEC?
Visit EC&M's
Web site to see the answer.
Hint: Use your nose to help sniff out this violation.
Code Q&A
By Mike Holt
Q. Is it good practice to bond the lightning
protection system to the building grounding electrode system?
Visit EC&M's
Web site to see the answer.
Code Quiz
By Steven Owen
Q. With respect to a solar photovoltaic system,
a
disconnecting means is required to disconnect all current-carrying
conductors of a photovoltaic power source from all other conductors in
a
building or other structure. A switch or circuit breaker shall not be
installed in a grounded conductor unless ___________. Is a bolted or
terminal disconnecting means (lug) acceptable as a disconnecting means
for the grounded conductor?
A) you decide it's okay / No
B) allowed by special permission of the Authority Having
Jurisdiction / No
C) the switch or circuit breaker is part of a ground-fault
detection system required by 690.5 -- and that switch or circuit
breaker is automatically opened and indicated as a normal function of
the device in responding to ground faults / Yes
D) all conductors, including the grounded conductor, are
simultaneously opened by a circuit breaker / No
Visit EC&M's
Web site for the answer and explanation.
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Education and Training
Understanding and
Applying the 2005 NEC
The Electric West Exposition & Conference, March 1-3,
2006 at the Las Vegas Convention Center, will be offering over 50
conference courses and professional advancement courses on a wide
variety of electrical topics. Session NEC01, Understanding and
Applying the 2005 NEC, will be taught by noted NEC expert and
EC&M Code consultant Mike Holt of Mike Holt Enterprises, Inc.
This course will help you understand the concepts necessary to design,
install, inspect, measure, and troubleshoot electrical systems, as well
clear up confusing and seemingly conflicting or controversial NEC
rules.
CEU credits are available upon successful completion of this course.
For
more information and to register visit www.electricshow.com.
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Shows and Events
NEC Sessions Scheduled for 2006 NFPA
World
Safety Conference & Exposition
The 12 sessions that make up the necforum™ are
designed
to help you consider new electrical design issues, analyze maintenance
programs, review best practices in the electrical contracting arena,
learn effective inspection techniques, and implement practical safety
programs. If these topics interest you then make plans to fly to
Orlando
in early June and take part in this year's event, which will be held
from June 2-8, 2006. Visit the NFPA
World Safety Web site for additional details.
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Training, Posters, Simulated Exams, Software, Video clips, and
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stay
current with important industry issues.
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