What does 110.2 mean?

Status
Not open for further replies.
George Stolz

George Stolz

Moderator
Staff member
Location
Windsor, CO NEC: 2017
Occupation
Hospital Master Electrician
I'm hoping to spur a dialogue about what 110.2 means.

It seems to wipe out most of the code, as an AHJ would be able to disapprove perfectly legal installations? :confused:
 
Re: What does 110.2 mean?

I don't like the way that's written but based on the FPN I think they're talking about listings.
 
Re: What does 110.2 mean?

Here is the handbook commentary

All electrical equipment is required to be approved as defined in Article 100 and, as such, to be acceptable to the authority having jurisdiction (also defined in Article 100). Section 110.3 provides guidance for the evaluation of equipment and recognizes listing or labeling as a means of establishing suitability.

Approval of equipment is the responsibility of the electrical inspection authority, and many such approvals are based on tests and listings of testing laboratories.
Click to expand...
 
Re: What does 110.2 mean?

In my opinion, this section just means that if you plan on installing some odd ball equipment or atypical conductors, just run it by the inspector or AHJ before doing so.

99% of the installations I see on a daily basis use common and typical materials. Every once in awhile you run into something you have never seen before or some new contraption your not sure how it is supposed to be installed and for what purpose it serves.

For example, we had a recent case where a new piece of equipment suddenly started popping up at a particular builders well equipment. This device looks like it is something from outerspace. It has no markings, no labels, nothing. A water line goes into it, back out, and a 120-volt cord-and-plug connection gives it power. On the front cover are a couple of LED's and a rotary switch with markings 1-5. Thats it. As it turns out, the product was being installed by the builder as an alternative to chlorine water treatment. The product was from Australia and had no listing.

This turned out to be a nightmare situation for the builder considering they purchased and were in the process of installing about 100 of these units. Perhaps it would have saved a lot of time and money had the builder first contacted the building department to get product approval.
 
Re: What does 110.2 mean?

I think the way it's worded, it just doesn't seem to jive with "oddball equipment." It seems to apply to all equipment.

The way it's worded, you could have a listed piece of equipment fail, just because the AHJ doesn't approve. It seems as though the whole setup with the definitions and everything is, "Listing is to make the AHJ's job easier by taking away his need to independently test items."

But nowhere does it say that listed materials and equipment shall be approved when used within their listing. :confused:
 
Re: What does 110.2 mean?

Originally posted by georgestolz:
The way it's worded, you could have a listed piece of equipment fail, just because the AHJ doesn't approve.
Click to expand...
I agree.

Originally posted by georgestolz:
But nowhere does it say that listed materials and equipment shall be approved when used within their listing.
Click to expand...
You have to move here to MA if you want that rule. :D

MA Amendments
90.4. Revise the first paragraph to read as follows:

90.4 Enforcement. This Code shall be used by the authority enforcing the Code and exercising legal jurisdiction over electrical installations. The authority having jurisdiction of enforcement of the Code shall accept listed and labeled equipment or materials where used or installed in accordance with instructions included with the listing or labeling. The authority shall have the responsibility for deciding upon the approval of unlisted or unlabeled equipment and materials, and for granting the special permission contemplated in a number of the rules.
Click to expand...
 
Re: What does 110.2 mean?

...a 120-volt cord-and-plug connection gives it power...
Click to expand...
Who has jurisdiction over anything cord-and-plug connected? If it is not part of the building's permanent wiring system, how does it fall under any part of the Code? :confused:

[ June 05, 2005, 12:09 PM: Message edited by: kbsparky ]
 
Re: What does 110.2 mean?

Welcome to the forum.


Originally posted by kbsparky:
Who has jurisdiction over anything cord-and-plug connected? If it is not part of the building's permanent wiring system, how does it fall under any part of the Code? :confused:
Click to expand...
I am with you on that thought but the NEC seems to go back and forth on where the NEC stops.

As evidenced by

422.41 Cord-and-Plug-Connected Appliances Subject to Immersion.
Cord-and-plug-connected portable, freestanding hydromassage units and hand-held hair dryers shall be constructed to provide protection for personnel against electrocution when immersed while in the ?on? or ?off? position.
Click to expand...
440.65 Leakage Current Detection and Interruption (LCDI) and Arc Fault Circuit Interrupter (AFCI).
Single-phase cord-and-plug-connected room air conditioners shall be provided with factory-installed LCDI or AFCI protection. The LCDI or AFCI protection shall be an integral part of the attachment plug or be located in the power supply cord within 300 mm (12 in.) of the attachment plug.
Click to expand...
And for 2005 a requirement that vending machines have integral GFCIs 422.51

I agree with you, the NEC should be stopping at the receptacle.
 
Status
Not open for further replies.
Top