Integrated Stub-Up Wireway and Box for Faster Conduit Installation
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Solution Overview
Problem
The conventional process of installing electrical conduit stub-ups from a concrete slab to an electrical box within a wall is laborious and time-consuming, requiring multiple bends and cuts of conduit.
Innovation Solution
A pre-made, one-piece hollow body stub-up is anchored to the concrete slab, featuring an integral electrical box and a wireway that extends from the slab to the electrical box, allowing for efficient installation with reduced manual labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional conduit installation methods are used, then electrical wiring can be extended from the slab to the wall, but the installation process becomes laborious and time-consuming requiring multiple bends and cuts
Solution Approach 1:
The conduit system is divided into two segments: an in-slab conduit portion embedded in the concrete floor and an above-slab stub-up portion that extends vertically. This segmentation allows each portion to be optimized independently, with the stub-up portion pre-configured with bends and connections to eliminate field bending operations.
Solution Approach 2:
The stub-up conduit portion is pre-bent and pre-configured with the necessary angles and connections before installation. This preliminary action eliminates the need for on-site bending and cutting operations, significantly reducing installation time and labor requirements while maintaining the required electrical pathways.
2Loss of time
If pre-made one-piece stub-up is used, then installation time and effort are reduced, but the device structure becomes more complex requiring integration of wireway and electrical box
Solution Approach 1:
The wireway and electrical box are merged into a single integrated assembly that forms the stub-up conduit system. This combination eliminates the need for separate installation of these components and reduces the number of field operations required, as the entire assembly is installed as one unit.
Solution Approach 2:
The integrated assembly serves multiple functions simultaneously: it provides the vertical conduit pathway, contains the wireway for wire routing, and incorporates the electrical box for device mounting. This multi-functionality reduces the total number of components needed and simplifies the overall installation process.
Data Source
AI summary
A stub-up is provided for being anchored to concrete slab flooring in which conduit is embedded and through which electrical wiring may be extended. The stub-up comprises a one-piece hollow body having an upper end providing an electrical box and a lower end providing a base permitting the hollow body to be anchored to an underlying concrete slab in an upstanding position. The hollow body provides a wireway for electrical wiring from the slab to the electrical box. Wall structures and methods are also disclosed.