406.8 Receptacles in Damp or Wet
Solicits Proposals for 2005 NEC
Change is in the
Grounding vs Bonding Seminar
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The designations "National Electrical Code” and “NEC” refer to the
National Electrical Code®, which is a registered trademark of the
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Top 2005 Code Changes
406.8 Receptacles in
Damp or Wet Locations
By Mike Holt
The word "outdoors" was deleted from this rule. As a
result, all 15A and 20A, 125V and 250V receptacles installed in a wet
location (indoor or outdoor) must be within an enclosure that's
weatherproof when an attachment plug is inserted. (Note: Code
text has been paraphrased.)
What the Code says:
in Wet Locations.
(1) 15A and 20A
Outdoor Receptacles. All 15A and
20A, 125V and 250V receptacles installed outdoors in a
wet location must be within an enclosure that's weatherproof even when
an attachment plug is inserted. (Text deleted from the Code is
Behind the change: As previously written, the requirements
in 406.8(B)(1) were limited to only outdoor wet locations. By deleting
the word "outdoor," enclosures must be weatherproof, whether or not the
attachment plug is inserted, in any wet location, rather than just in
outdoor location. Indoor locations, such as food processing areas in
supermarkets, vehicle washing areas inside car washes, and other
areas, often require hose-down or water exposure for the walls in these
areas with electrical appliances still plugged into the receptacle.
Two Powerful Tools in One: The Fluke 1587 and
Insulation Multimeters combine a digital insulation tester with a
full-featured, true-rms digital multimeter in a single compact,
Hot Tub Turmoil
A customer recently called me and reported that the 50A
breaker for their hot tub was tripping. Usually, this means that the
ground-fault breaker in the disconnect located next to the hot tub has
picked up some leakage in the heating element, and as such, won't stay
closed. But to my surprise, it was the feeder breaker in the house
that was tripping out. I disconnected everything in the outside
disconnect box, and tried to restore power again. The breaker stayed on
for about 5 seconds, then POP!! My first instinct said that there was a
problem in the underground wiring from the panel out to the tub. Upon
inspection, it appeared that it was run in 1-inch PVC conduit, buried
from the house to the tub. I disconnected all conductors from both ends
and attempted to pull them out to replace them. I could only get about
foot of wire out of the conduit before it would get stuck and refuse
to pull any farther. At this point I noticed the equipment grounding
conductor was a 10 AWG THHN green wire at the panel end, but it was an
AWG THHN black wire, with green tape applied at the tub end. I figured
there was an underground splice box somewhere along the conduit run.
When I questioned the homeowner, they indicated that the hot tub had
been replaced a year ago, and subsequently relocated to its present
position. This just about confirmed my suspicions, but I needed to do a
little more looking.
Web site to read the rest of the story.
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
How does this
installation violate the NEC?
Hint: Is this a permitted wiring method in a motor fuel
By Mike Holt
Q. What are the minimum and maximum heights for
electrical equipment that contains circuit breakers or switches?
See the answer.
By Steven Owen
Starting Jan. 1, 2008, a local disconnecting means
(i.e., switch) is required for which of the following luminaires?
- A fluorescent luminaire that uses double-ended lamps and
is direct-wired using RELOC or an equivalent manufactured flexible
- Ballasted luminaires fed from multi-wire branch circuits, and
fluorescent luminaires utilizing double-ended lamps, installed in the
production areas of an industrial facility
- An open bottom, high-bay luminaire with a metal halide lamp that's
cord-and-plug connected per 410.30(C)
- A 2-in. x 4-in. fluorescent lay-in troffer, which is used as an
emergency luminaire in an emergency lighting system
Visit EC&M's Web
for the answer and explanation.
Fuse Line Has Multiple Applications
AutomationDirect has launched the Edison Line of fuse products which
includes a wide variety of fuses and accessories. All Edison fuses can
be cross referenced and used as replacement for other name-brand fuses.
Available are the most popular 11/32" x 1-1/2" size Current Limiting
Class CC and Class M Midget general purpose fuses for industrial
applications. Visit www.automationdirect.com/fuses
Code News Updates
Proposals for 2005 NEC
Seems like just yesterday that you received your copy
the 2005 NEC, doesn't it...so what better time than now to start
thinking about making changes? Code-making panels are soliciting change
proposals for the 2008 NEC, so now's your chance to voice your concerns
about that requirement that's been bugging you. Proposals are due by 5
p.m. ET on Nov. 4. A copy of the proposal form is available in the back
of the 2005 NEC or at NFPA's Web
The National Electrical Code Internet Connection, the No. 1
rated Code Web site in the world, offers the following FREE products:
Books, Code Quiz, DVDs, Graphics for PowerPoint, Newsletter, Online
Training, Posters, Simulated Exams, Software, Video clips, and Videos
Visit www.NECcode.com and stay
current with important industry issues.
Change is in the Air
The 2005 NEC is only a few months old, but it's already
time to start thinking about the next version. Do you plan to submit a
change proposal? Visit EC&M's
site to tell us.
Much has been made of the Code's distinction between
the terms "grounding" and "bonding" in recent years, and CodeWatch
readers are split on
whether the standard's definitions are clear.
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 advanced 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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