Yes, this is a valid installation method.

The National Electrical Code (NEC) allows for the installation of rigid conduit in a mid-air pathway, supported at both ends. The conduit must be securely fastened to the ceiling and floor using appropriate hardware to ensure stability and prevent sagging.

Advantages of This Installation Method

Provides flexibility in receptacle placement without the need for walls or other structural supports. Keeps conduits and wiring off the floor, reducing tripping hazards and improving aesthetics. Facilitates easy access for maintenance or repair.

Considerations



Support Structure

The ceiling and floor must be structurally sound to support the weight of the conduit and boxes.

Conduits

Use schedule 10 rigid steel conduit.

Boxes

Use cast metal receptacle boxes designed for rigid conduit.

Nipples

Use threaded nipples to connect boxes to conduits.

Flange

Use a floor flange to secure the conduit to the floor.

Grounding

Ensure proper grounding by using grounding bushings or lugs.

Alternative: Power Pole

A power pole is another option for providing electrical access in open areas. It offers several advantages, including: Mobility

Easily moved to different locations as needed.

Height

Adjustable to accommodate different equipment heights.

Multiple Outlets

Provides a centralized location for multiple receptacles.However, power poles can be more expensive and less aesthetically pleasing than the rigid conduit installation method described above.

Recommendation:

For your specific application in a commercial kitchen, the rigid conduit installation method you described would be a suitable and cost-effective solution. It provides support at both ends and allows for flexible receptacle placement. Flag for review