An LV shaft (Low Voltage shaft) in electrical systems within architectural design refers to a dedicated vertical space or conduit within a building that houses low-voltage electrical services.
These services may include power cables, data cables, telecommunication lines, security systems, fire alarms, and other essential low-voltage wiring required for the building’s operations.
The LV shaft is strategically integrated into the building layout to ensure efficient cable management, ease of maintenance, and safety by preventing interference with high-voltage systems.
Proper planning of LV shafts is crucial in modern architecture, as they contribute to the seamless distribution of power and communication networks while maintaining aesthetics and structural integrity.
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Image of LV shaft detail and downloadable (in DWG) link below
LV shaft detail drawing -1
The LV (Low Voltage) Shaft detail drawing is typically found in the following construction documents:
Electrical Drawings
- Shown in electrical riser diagrams and cable routing plans.
- Indicates the path of low-voltage cables, containment, and distribution points.
Architectural Drawings
- Found in floor plans, section drawings, and reflected ceiling plans.
- Shows the physical space allocated for the LV shaft in relation to walls, rooms, and other building services.
MEP (Mechanical, Electrical, and Plumbing) Drawings
- Combined with other service shafts like HVAC, plumbing, and fire safety.
- Details coordination with other utilities to prevent clashes.
Structural Drawings
- Displays openings, shaft dimensions, and load-bearing considerations.
- Ensures proper structural support for cable trays and conduits.
Shop Drawings & As-Built Drawings
- Detailed layouts provided by contractors before and after installation.
- Used for verification and future maintenance.
The LV shaft is typically positioned near electrical rooms, data centers, or utility cores, ensuring optimal accessibility and efficient cable management.
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