"existing" dwelling

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apauling

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Does anyone know where the term "existing" is defined in the electrical codes. Plumbing codes define as before adoption of codes. UBC similar.

My understanding has been that some areas define more liberally as before adoption of code section.

Any input appreciated.

Thanks guys, Paul
 
Re: "existing" dwelling

I think local jurisdictions define this for purposes of applying enforcement. The term "existing" is so relative, it must be taken into context in respect to the NEC. I know in my area, once a house or occupancy is issued a certificate of occupancy, the building and wiring system is considered existing.
 
Re: "existing" dwelling

Paul,

I'd submit that anything I find in place is existing. Heh! There is a certain metaphysical common sense in that. :D

Seriously, though, if it's there, it exists.

The nature of that existing installation will be a subject of judgment based on applicable ordinance, if any. The local ordinance gives the AHJ the limits of his/her authority. The hard part is finding that definition, as, in my experience, it is scattered throughout all the "governments" in effect for any one parcel of land.
 
Re: "existing" dwelling

The NFPA does define it. I don't have it in front of me, but in NFPA 101, it is defined under Building, Existing and although not word for word, (I'll post it tonight when I get home) it says pretty much what has already been said by you all.

"A building commissioned and occupied before current codes."

Roger
 
Re: "existing" dwelling

Hello Paul, here is the wording from NFPA 101

3.3.25.4* Building, Existing A building erected or officially authorized prior to the effective date of the adoption of this edition of the Code by the agency or jurisdiction.

Now the asterisk takes us to Annex A

A.3.3.25.4 Building, Existing With respect to judging whether a building should be considered existing, the deciding factor is not when the building was designed or when construction started but, rather, the date plans were approved for construction by the appropriate authority having jurisdiction.

Roger
 
Re: "existing" dwelling

There is also the implied intent in Art 80 although it isn't necessarily "Code":
80.9 Application.
(A) New Installations. This Code applies to new installations. Buildings with construction permits dated after adoption of this Code shall comply with its requirements.
(B) Existing Installations. Existing electrical installations that do not comply with the provisions of this Code shall be permitted to be continued in use unless the authority having jurisdiction determines that the lack of conformity with this Code presents an imminent danger to occupants. Where changes are required for correction of hazards, a reasonable amount of time shall be given for compliance, depending on the degree of the hazard.
Click to expand...
 
Re: "existing" dwelling

The building departments here determine 'existing' as having had a building permit issued and inspected prior to the work being requested presently.
When there is no C.O., they will do a site visit to make a determination.

Pierre
 
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