Changes to the 2017

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If you get a chance to watch the live stream of the videos, I think you'd be amazed at the broad range of work he had personally laid hands on. From what I can tell, he should be 84 years old. I crib off experienced people, he's the real deal.
 
They totally screwed up the peninsula countertop space. So instead of meaning to say that a receptacle at the wall can be used as the required receptacle for the peninsula they actually said that a receptacle must be installed along the long dimension of the countertop--- Isn't that where the doors and drawers are typically installed or the overhang for an eating area..... One at the end is technically not acceptable--- This is a big oops and I believe (Hope) most inspectors will not call this as written because it was not the intent.

Does this explanation make any sense from EC Magazine?

Dwelling-unit kitchen 
peninsular countertops


While attending a recent seminar to keep up my continuing education credits, the instructor stated that the 2017 NEC contained significant revisions to receptacle outlet requirements on peninsular countertops in dwelling units. He said that a receptacle outlet installed in the wall for the wall-mounted countertop is all that is necessary. This means a receptacle outlet on the adjacent wall is all that is necessary without regard to the length of the peninsular countertop. We get involved in some high-end dwelling units where such a countertop may be 15 feet long or more. Allowing the wall receptacle to suffice just didn’t sound right. Now that I have a copy of the 2017 NEC and have had the chance to read the revised text, I am even more confused. 

There has been significant discussion on the application of the revised text for receptacle placement on dwelling-unit kitchen peninsular countertops. While clarity is most certainly needed, the revised requirement is clear.

Most NEC users will focus only on the revised text and not the title of the section or the subdivision that they are applying. The revision you refer to occurred in second-level subdivision 210.52(C)(3) for “peninsular countertop spaces.” It is essential to focus on that title. The countertop along the wall is addressed by 210.52(C)(1), which provides receptacle placement requirements for wall countertop and work surfaces. The peninsular countertop space extends from the wall countertop and work surfaces. These spaces and associated requirements do not overlap. The requirements of 210.52(C)(1) and 210.52(C)(3) stand alone.

The revision here is only in how we calculate the peninsular countertop space length. It is a significant expansion of the existing requirement, not a reduction. Peninsular countertops are no longer measured from the connecting edge. They are measured from the connected perpendicular wall.

For example, consider a short peninsular countertop extending from a wall countertop that measures 22 inches from the connecting edge. The connecting edge is where the peninsular countertop space meets the wall countertop space. The 2014 NEC would not require a receptacle in that peninsular countertop space, but the 2017 NEC will require one. The only change here is how we measure to determine if a receptacle outlet is required.

This issue is similar to previous confusion created where an installer tried to use a wall countertop and work-surface receptacle—required in 210.52(C)(1)—to count as a wall space receptacle, as 210.52(A)(2) requires. That was never permitted because the existing requirements addressed different spaces. The moral of the story here is that all Code users should read all section and subdivision titles to correctly apply the contained requirements.


The 2017 NEC is revised with a new 210.52(A)(4) that clarifies a wall countertop and work-surface receptacle cannot be counted as a wall-space receptacle. While similar text is needed to provide clarity with respect to peninsular countertop spaces, understand that this is not a relaxation of receptacle requirements in peninsular countertop spaces.


http://www.ecmag.com/section/codes-standards/overcurrent-protection-kitchen-countertops-and-more
 
I understand that to clarify the wall does not qualify as the receptacle for the peninsular, however, the wording is very different in 2017 and seems to indicate the receptacle must be placed at each long dimension. This would mean one on each side of the penisular not at the end.

Here is the 2014 version
(3) Peninsular Countertop Spaces. At least one receptacle
outlet shall be installed at each peninsular countertop space
with a long dimension of 600 mm (24 in.) or greater and a
short dimension of 300 mm (12 in.) or greater. A peninsular
countertop is measured from the connecting edge.


(3) Peninsular Countertop Spaces. At least one receptacle
outlet shall be installed at each peninsular countertop long
dimension space with a long dimension of 600 mm (24 in.) or
greater and a short dimension of 300 mm (12 in.) or greater. A
peninsular countertop is measured from the connected
perpendicular wall.
 
I understand that to clarify the wall does not qualify as the receptacle for the peninsular, however, the wording is very different in 2017 and seems to indicate the receptacle must be placed at each long dimension. This would mean one on each side of the penisular not at the end.

2017 NEC
(3) Peninsular Countertop Spaces. At least one receptacle
outlet shall be installed at each peninsular countertop long
dimension space with a long dimension of 600 mm (24 in.) or
greater and a short dimension of 300 mm (12 in.) or greater. A
peninsular countertop is measured from the connected
perpendicular wall.

I disagree, Dennis. You, in your words, are using the two-word "long dimension" as a two-word TERM, but in the 2017 NEC citation "long dimension" is an ADJECTIVE. "Space" is the TERM.
 
I disagree, Dennis. You, in your words, are using the two-word "long dimension" as a two-word TERM, but in the 2017 NEC citation "long dimension" is an ADJECTIVE. "Space" is the TERM.
Well, you may be right but Mark Odie and others say otherwise. I don't believe it was the intent
 
Well, you may be right but Mark Odie and others say otherwise. I don't believe it was the intent
Mark's take is an opinion.

We all have to start by forming our individual opinions by first applying Charlie's Rule:
Charlie's Rule of Technical Reading

It doesn't say what you think it says, nor what you remember it to have said, nor what you were told that it says, and certainly not what you want it to say, and if by chance you are its author, it doesn't say what you intended it to say. Then what does it say? It says what it says. So if you want to know what it says, stop trying to remember what it says, and don't ask anyone else. Go back and read it, and pay attention as though you were reading it for the first time.

Copyright 2005, Charles E. Beck, P.E., Seattle, WA
 
Omitted or missing articles?

Omitted or missing articles?

Hi everyone, I'm a student right now and have been reviewing for my final. I've noticed some strange things about my copy and would like to know if my copy is 'bad' or what. I've notice there is no article 210.2 in my book, and I read that the definitions for some words that I have been told are in article 100 are not in my copy, such as 'nominal'. Are all the 2017s like this, or is my copy poorly printed/made?
 
Hi everyone, I'm a student right now and have been reviewing for my final. I've noticed some strange things about my copy and would like to know if my copy is 'bad' or what. I've notice there is no article 210.2 in my book, and I read that the definitions for some words that I have been told are in article 100 are not in my copy, such as 'nominal'. Are all the 2017s like this, or is my copy poorly printed/made?

Where did you get your copy?

From the 2017:

Voltage, Nominal. A nominal value assigned to a circuit or
system for the purpose of conveniently designating its voltage
class (e.g., 120/240 volts, 480Y/277 volts, 600 volts). (CMP-1)
Informational Note No. 1: The actual voltage at which a circuit
operates can vary from the nominal within a range that permits
satisfactory operation of equipment.
Informational Note No. 2: See ANSI C84.1-2011, Voltage Ratings
for Electric Power Systems and Equipment (60 Hz).
Informational Note No. 3: Certain battery units may be consid‐
ered to be rated at nominal 48 volts dc, but may have a charging
float voltage up to 58 volts. In dc applications, 60 volts is used to
cover the entire range of float voltages.

From the 2014:

Voltage, Nominal. A nominal value assigned to a circuit or
system for the purpose of conveniently designating its volt-
age class (e.g., 120/240 volts, 480Y/277 volts, 600 volts).
Informational Note No. 1: The actual voltage at which a
circuit operates can vary from the nominal within a range
that permits satisfactory operation of equipment.
Informational Note No. 2: See ANSI C84.1-2006, Voltage
Ratings for Electric Power Systems and Equipment (60 Hz).

From the 2017:

210.3 Other Articles for Specific-Purpose Branch Circuits.
Table 210.3 lists references for specific equipment and applica‐
tions not located in Chapters 5, 6, and 7 that amend or supple‐
ment the requirements of this article.

from the 2014:

210.2 Other Articles for Specific-Purpose Branch Cir-
cuits. Branch circuits shall comply with this article and also
with the applicable provisions of other articles of this Code.
The provisions for branch circuits supplying equipment
listed in Table 210.2 amend or supplement the provisions in
this article.
 
Receptacle Replacements

Receptacle Replacements

New for 2017 is 210.12(C), Guest Rooms and Guest Suites in Hotels and Motels.

406.4(D)(4) does not list (C) as an area that requires AFCI on replacement receptacles.

Maybe Errata or a TIA is needed.
 
Branch Circuit Extensions and Modifications

Branch Circuit Extensions and Modifications

210.12(C) is new for 2017...

210.12(D) says extensions or modifications in any area in 210.12(A) or (B) ...but does not include 210.12(C) for Guest Rooms and Guest Suites in Hotels and Motels.

Maybe Errata or TIA needed?
 
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