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Topic: Wet-niche underwater luminaire flexible cord

User: smallfish, Location: Detroit

Asked on: Tuesday, May 3, 2011 at 10:14 am EDT
Answered on: Tuesday, May 14, 2024 at 4:54 am EDT

Question: Is it 2008 NEC code-compliant to run a wet-niche luminaire 30 foot flexible cord from forming shell continuous, without splice, underground in IMC stubbing up into a nearby garage into a metallic junction box or pulling elbow, which is connected to panelboard in IMC?Must this junction box be listed as a swimming pool junction box (Sec. 680.24 (A)?Originally, the junction deck box was flush and within 18 inches of the inside walls of the pool (installed in 1965). The perimeter concrete deck was removed to expose a broken gas line supplying the pool water heater. In the process, the deck box with brass piping from the underwater luminarie and with home-run metal piping were exposed.It is intended to cut the brass pipe below ground and connect IMC to it and run it back to the garage pull box then to the panel.What kind of connector or method is used to connect brass pipe to IMC pipe?Thanks

Code Compliance

Yes, it is 2008 NEC code-compliant to run a wet-niche luminaire 30-foot flexible cord from a forming shell continuous, without a splice, underground in IMC stubbing up into a nearby garage into a metallic junction box or pulling elbow, which is then connected to the panelboard in IMC.

Junction Box Requirement

The metallic junction box must be listed as a swimming pool junction box (Section 680.24(A)).

Connector for Brass Pipe to IMC Pipe

To connect the brass pipe to IMC pipe, you can use a brass adapter fitting. This adapter fits into the brass pipe and has threaded connections on the other end for the IMC pipe.

Recommended Installation Procedure

1. Cut the brass pipe below ground.
2. Clean and deburr the cut end of the brass pipe.3. Apply pipe thread sealant to the threaded end of the brass adapter fitting.
4. Screw the adapter fitting into the brass pipe.5. Connect the IMC pipe to the threaded end of the adapter fitting.
6. Run the IMC pipe back to the garage pull box and then to the panelboard.7. Install a listed swimming pool junction box at a location accessible for servicing.
8. Connect the IMC pipe to the junction box.9. Install a wet-niche luminaire with an approved cord connector inside the junction box.
10. Connect the cord from the wet-niche luminaire to the circuit conductors in the junction box.11. Install a cover on the junction box.


Additional Notes:
Ensure that the entire installation meets the latest NEC requirements. If you are not familiar with working on electrical systems, consult a qualified electrician. Keep all electrical components dry and protected from water. Ground all metal fittings and junction boxes properly. Flag for review

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