Article 682 -- Natural and
Artificially Made Bodies of Water
Grounding vs Bonding Seminar
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Top 2005 Code Changes
-- Natural and Artificially Made Bodies of Water
By Mike Holt
This new article covers the installation of electrical
for, in, and adjacent to natural or artificially made bodies of water
not covered by Article 680. This includes aeration ponds, fish farm
ponds, storm retention basins, sewage treatment ponds, and irrigation
Behind the change: The scope of Article 680 was insufficient
for covering such bodies of water, so only the requirements in Chapters
1 and 4 applied. Instead of expanding the Article, it was decided to
Achieve Your Performance Goals
Anticipate, prevent and troubleshoot motors, electrical and equipment
maintenance with fast, accurate non-contact temperature measurements
with Fluke infrared thermometers. www.fluke.com/codewatch_temp
I once had the job of rewiring an older home that had
knob and tube wiring. The fuse box had been replaced with a circuit
breaker panel, and some new branch circuits had been added for the
electric range and clothes dryer. There was a studio apartment below
house in what at one time had been the garage. The branch circuit
there was NMS cable, but it was energized from one of the old knob and
tube circuits connected to a circuit breaker. My intention was to
the "home run" outlet box, route a new circuit to it and thus hot-up
room. After removing all the devices from their outlet boxes, I
reenergized the circuit. To my surprise, all the outlet boxes still had
a "hot" wire in them. The previous installer had tapped into the knob
and tube in the floor space of the room above and drop circuit
extensions to each box. So much for an easy fix.
Send your 200-word story to us and it may
appear in a future issue of CodeWatch. Authors of stories chosen will
Cool Electronic Cabinets
Prevent hot weather failures that can affect production. UL Listed
Cabinet Coolers produce 20 degree Fahrenheit air from an ordinary
of compressed air to cool electrical controls. Thermostat control
minimizes air usage. Maintains the NEMA 4, 4X (stainless steel) and 12
rating of the enclosure. Web site offers detailed information,
downloadable drawings and PDF literature.
What's Wrong Here?
By Joe Tedesco
Got a guess for how this installation violates the NEC?
Web site to see the answer.
Hint: This green light means "stop."
By Mike Holt
Q. Is a switch that is located in a bedroom but
controls an outside light required to be AFCI protected?
Visit EC&M's Web
site to see the answer.
By Steven Owen
When installing a Combustible Gas Detection System (in
industrial establishments with restricted public access, and using
qualified personnel to service the installation) as a protection
technique in a Class I hazardous (classified) location of Article 501,
or a Zone location of Article 505, all but which of the following items
shall be documented?
- Purchase date / installation date
- Calibration frequency
- Alarm and shutdown criteria
- Installation location
- Type of detection equipment and its installation listing
Visit EC&M's Web
for the answer and explanation.
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Code News Update
Got some extra time on your hands? Looking to put some
of your vast knowledge of the electrical field to use? NFPA is looking
for new members for several of its committees, including the following:
Committee on Electrical Equipment of Industrial Machinery
Committee on Electrical Systems Maintenance
Committee on Health Care Facilities - Electrical Equipment
Committee on Health Care Facilities - Electrical Systems
Anyone interested in serving can download the application form at NFPA's Web
The 2005 NEC added yet more requirments for electrical
installations near water. Was it necessary to create a new article
rather than put the requirements in Article 680? Visit EC&M's Web site to tell us.
CodeWatch readers had a wide range of opinions as to what to do with
210.12 on AFCIs. Visit EC&M's Web
to read their responses.
Shows and Events
Grounding and bonding of electrical systems, sensitive
electronic, and communications equipment is the most important and
understood activity in the electrical, data processing, and
communications industry. At four two-day seminars, Code expert Mike
will explain the basics as well as the advance concepts necessary to
understand the practical grounding and bonding rules in the NEC for
systems not over 600V. Download
the conference brochure for specific dates and locations.
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