Nec 382.15 non metallic extensions

Jpflex

Jpflex

Electrician big leagues
Location
Victorville
Occupation
Electrician commercial and residential
A) one or more extensions shall be permitted to run in any direction from an existing outlet, BUT NOT ON THE FLOOR OR WITHIN 2" inches from the floor


Is nec really saying plastic non metallic receptacle extensions cannot be used on tbe ground floor? I seen this done all my life.

Or is this meaning something else or for another application?
 
It is saying you cannot not install it on the surface of a floor, and you cannot install it one a wall unless it is more than 2" above the surface of the floor.
 
don_resqcapt19 said:
It is saying you cannot not install it on the surface of a floor, and you cannot install it one a wall unless it is more than 2" above the surface of the floor.
Click to expand...
I was thinking that but the code makes no mention of installation. The code only says "run" again tjis is ambiguous since a cord can be extended and ran without support or securement to the floor.

It also makes little sence why it may be utilized within 2" of the floor but not supported or secured in the same way
 
Jpflex said:
I was thinking that but the code makes no mention of installation. The code only says "run" again tjis is ambiguous since a cord can be extended and ran without support or securement to the floor.

It also makes little sence why it may be utilized within 2" of the floor but not supported or secured in the same way
Click to expand...
This and sense .. misstype
 
Jpflex said:
I was thinking that but the code makes no mention of installation. The code only says "run" again tjis is ambiguous since a cord can be extended and ran without support or securement to the floor.

It also makes little sence why it may be utilized within 2" of the floor but not supported or secured in the same way
Click to expand...
Little Bill said:
What the heck is it anyway? I must have skipped over this section for 40 years!
Click to expand...
the code is worded axactly as i posted at top. This is a code i believe associated with wiring methods, conduits and wireways.
 
From my recollection non-metallic extensions were used primarily in old homes where there was typically only a single receptacle in a room. They often consisted of a 2-wire zip cord with a duplex or triplex receptacle at the end that was mounted to the base molding. The cord was stapled to the base molding. My grandmother's house which was built in the early 1920's had them in every room. It was a permanent way to extend a receptacle to a new location without having to open up the walls. Here's something similar from the 1947 NEC Handbook:
Surface extension.jpg
 
Last edited:
infinity said:
From my recollection non-metallic extensions were used primarily in old homes where there was typically only a single receptacle in a room. They often consisted of a 2-wire zip cord with a duplex or triplex receptacle at the end that was mounted to the base molding. The cord was stapled to the base molding. My grandmother's house which was built in the early 1920's had them in every room. It was a permanent way to extend a receptacle to a new location without having to open up the walls.
Click to expand...
Is it still made today?
 
infinity said:
My grandmother's house which was built in the early 1920's had them in every room. It was a permanent way to extend a receptacle to a new location without having to open up the walls.
Click to expand...
I worked in a house years ago that only had one receptacle in each room. They wanted to add receptacles. The house was built around 1920 with only less than a foot high crawl space. My solution was to put a Wiremold extension on each receptacle and use Wiremold to add new receptacles.
 
Jpflex said:
It also makes little sence why it may be utilized within 2" of the floor but not supported or secured in the same way
Click to expand...
The rule in 382.15(A) is telling you where it cannot be installed for exposed locations. It can't be within 2" of the floor...it must be higher up on the wall.

The rule in 382 tells you how it must be secured and supported.
Jpflex said:
This is a code i believe associated with wiring methods, conduits and wireways.
Click to expand...
It is not a conduit, wireway, or traditional wiring method. From the UL Guide Information for Nonmetallic Surface Extensions (PZMX)
This category covers assemblies of two insulated circuit conductors with or without a grounding conductor within a nonmetallic jacket or extruded thermoplastic covering, intended for installation in accordance with Article 382 of ANSI/NFPA 70, "National Electrical Code." Assemblies without a grounding conductor are marked "Intended for replacement use only."
Click to expand...
 
infinity said:
From my recollection non-metallic extensions were used primarily in old homes where there was typically only a single receptacle in a room. They often consisted of a 2-wire zip cord with a duplex or triplex receptacle at the end that was mounted to the base molding. The cord was stapled to the base molding. My grandmother's house which was built in the early 1920's had them in every room. It was a permanent way to extend a receptacle to a new location without having to open up the walls. Here's something similar from the 1947 NEC Handbook:
View attachment 2579558
Click to expand...
Ah, plastic Wiremold's predecessor.
 
You must log in or register to reply here.
Top