Isolated Control Panel for Electrical Hazard Reduction
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Solution Overview
Problem
Conventional industrial control panels pose electrical hazards due to the presence of live conductors, requiring expensive and cumbersome personal protection equipment for workers, which is time-consuming to don and does not adequately address shock and arc-flash risks.
Innovation Solution
An isolated control panel apparatus that attaches to the industrial control panel, de-energizing the interior and providing a secondary line of defense against electrical hazards, allowing for reduced personal protection equipment usage by workers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If personal protection equipment is worn to protect against electrical hazards, then worker safety is improved, but the equipment is expensive, cumbersome and time consuming to don
Solution Approach 1:
The patent extracts the electrical hazard (live conductors) from the control panel interior by providing a secondary enclosure that creates an isolated, de-energized workspace. This eliminates the need for workers to wear extensive personal protection equipment while maintaining safety.
Solution Approach 2:
The patent implements prior cushioning by pre-isolating the control panel interior with a secondary enclosure before work begins. This preventive measure creates a inherently safer environment that reduces reliance on personal protection equipment and associated time losses.
2Reliability
If personal protection equipment is worn to protect against electrical hazards, then worker safety is improved, but the equipment is expensive and cumbersome
Solution Approach 1:
The patent removes the electrical hazard from the work environment by creating an isolated, de-energized enclosure. This eliminates the need for complex personal protection equipment, thereby reducing device complexity while maintaining worker safety.
3Productivity
If the control panel interior remains energized for operational efficiency, then productivity is improved, but electrical shock and arc-flash hazards increase
Solution Approach 1:
The patent segments the control panel into two distinct zones: an outer enclosure that remains energized for operational efficiency, and an inner isolated enclosure that is de-energized for worker safety. This segmentation allows both productivity and safety to coexist.
Solution Approach 2:
The patent introduces a secondary enclosure as an intermediary barrier between the energized external environment and the de-energized work space. This intermediary structure enables operational efficiency to be maintained while eliminating electrical hazards in the work zone.
Data Source
AI summary
An apparatus includes an enclosure, a power switch, one or more power converters and a wire. The enclosure may include a door and one or more apertures. The enclosure may be mechanically attachable to an external side of an industrial control panel with the apertures aligned to one or more openings in a wall of the industrial control panel. The power switch may be mounted inside the enclosure and configured to switch electrical power from a line-side power line to a load-side power line. The load-side power line may be configured to transfer the electrical power through at least one of the apertures. The power converters may be configured to generate a low-voltage electrical power from the electrical power. The wire may be configured to transfer the low-voltage electrical power through at least one of the apertures.