Listed Equipment Required??

[iwire]

I would submit that the Electrical Inspector is the AHJ (Authority of Having Juristiction)

FWIW in many places (most?) the inspector is not the AHJ, they are the inspector.

The AHJ is often a State or local organization charged with adopting the NEC.

The inspectors enforce the NEC as interpreted by the AHJ.

 

[wayni]

We had a simular situation once where the owner had purchased their own air compressor. It arrived wired for 208V and we needed to supply it with 480V. There was a kit provided to accomplish this (starter coil, heaters) but field installing these components caused the equipment to lose its listing (it was listed for 208V). We had to have a UL field inspection performed on this equipment before we could get a final. It was expensive and it was the owner's responsibility to take care of it.

 

[petersonra]

I read it differently. Perhaps cause my grammer sucks. In this area everything must be laboratory listed-- maybe this is a local thing. I just assumed it was part of the NEC.

So you are telling me light fixtures don't have to be listed--dang-- I have refused to install unlisted lights for years. Probably not a bad idea anyway. I am going to check with our states Dept of Insurance--that may be where it comes from.

It may be a state/local amendment to the NEC or it may be that you have some inspectors who are overstepping their bounds, maybe without even meaning to.

 

[petersonra]

We had a simular situation once where the owner had purchased their own air compressor. It arrived wired for 208V and we needed to supply it with 480V. There was a kit provided to accomplish this (starter coil, heaters) but field installing these components caused the equipment to lose its listing (it was listed for 208V). We had to have a UL field inspection performed on this equipment before we could get a final. It was expensive and it was the owner's responsibility to take care of it.

Equipment cannot "lose" its listing. In fact, I would argue that you were installing it in accordance with the listing/labeling instructions for 480V.

 

[don_resqcapt19]

It arrived wired for 208V and we needed to supply it with 480V. There was a kit provided to accomplish this (starter coil, heaters) but field installing these components caused the equipment to lose its listing (it was listed for 208V).

If the kit was supplied by the OEM, it should have been included in the original listing and a field inspection should not have been required.
Don

 

[haskindm]

The most difficult part of many jobs is determining who the AHJ is. In many jurisdictions the inspector fulfills the duties of the AHJ but they are not the AHJ. In my county, it is stated specifically that the Board of electrical Examiners is the AHJ. That means that a contractor and inspector that cannot agree can come to the board for arbitration. It happens rarely, but does happen. In most cases the NEC does not require that equipment be "listed", but there are some exceptions where listing is required. The NEC does require that all equipment be approved which means "acceptable to the AHJ". That means that the AHJ may approve unlisted equipment or reject listed equipment. Looking for listing makes it fairly easy to "approve" equipment but it is NOT a requirement in most cases.

 

[barbeer]

In Orange County FL (Orlando) an inspector made us have a private listing agency list our handhole boxes (pencell) for a mere $2000 something. The thing that really got me is all he did was hit the lid with a torch flame to see if it would burn and put a little sticker in each box (52) that I had to open and close for him.

 

[sandsnow]

Here's 110.3(A):
110.3 Examination, Identification, Installation, and Use of Equipment.
(A) Examination. In judging equipment, considerations such as the following shall be evaluated:
(1) Suitability for installation and use in conformity with the provisions of this Code
FPN:Suitability of equipment use may be identified by a description marked on or provided with a product to identify the suitability of the product for a specific purpose, environment, or application. Suitability of equipment may be evidenced by listing or labeling.
(2) Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided
(3) Wire-bending and connection space
(4) Electrical insulation
(5) Heating effects under normal conditions of use and also under abnormal conditions likely to arise in service
(6) Arcing effects
(7) Classification by type, size, voltage, current capacity, and specific use
(8) Other factors that contribute to the practical safeguarding of persons using or likely to come in contact with the equipment

I would say that most jurisdictions would have a hard time evaluating to all these items especially 4,5,& 6; therefore the requiring of the listing or evaluation of equipment by a company that is equipped to do so.