A Guard Room with LT (Low Tension) Panel Room is a functional architectural space often integrated at the entrance of residential, commercial, or industrial premises. The Guard Room is typically a small enclosed area designed for security personnel, providing visibility and control over entry and exit points.
It may include amenities such as seating, communication systems, storage lockers, and sometimes a small washroom, ensuring comfort during long shifts. The LT Panel Room, on the other hand, houses the low-tension electrical distribution panels that manage and distribute electricity safely across the facility.
Architecturally, these two functions are often combined for space efficiency, yet are separated internally to maintain safety and operational integrity.
Proper ventilation, fire safety provisions, and accessibility for maintenance are critical design considerations for the LT Panel Room, while clear visibility, security controls, and durability are essential for the Guard Room. This combination ensures both physical security and reliable power distribution at a site’s main entrance.
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Guard Room with LT Panel Room detail drawing – 1
In construction drawings, the Guard Room with LT Panel Room is detailed to ensure functionality, safety, and compliance with electrical and architectural standards. Here’s an overview of the typical components and considerations shown in such a detail drawing:
General Layout (Plan View)
Guard Room:
- Location near the site entrance or gate.
- Includes a window facing the entry point for surveillance.
- Door access from both outside and (sometimes) an inner compound.
- Internal fixtures: Desk, chair, possible fan/light, and optional toilet if space allows.
LT Panel Room:
- Positioned adjacent or attached to the Guard Room but partitioned with a masonry or fire-rated wall.
- Access via a dedicated door (often metal) for maintenance personnel.
- Must be separate from human occupation for safety.
Electrical Panel Room Specifics
Foundation and Flooring:
- Anti-static or acid-resistant floor finish.
- Raised floor may be shown for cable routing.
Wall Sections:
- Fire-resistant walls (minimum 2-hour fire rating recommended).
- Cable trenches or conduits shown in section/elevation views.
Ventilation:
- Louvered vents, exhaust fans, or dedicated cooling shown in section drawings.
- Placement to prevent overheating of equipment.
Clearances:
- Minimum clearance in front and sides of panels as per IEC/NBC norms.
- Emergency exit if required.
Construction Details
Material Notes:
- RCC slab roof, with insulation if required.
- Brick or block masonry walls with plaster finish.
- Water-proofing details for roof and any toilet area.
Partitions:
- Masonry or dry wall between Guard Room and LT Panel Room.
- Clear labeling in drawing.
Doors and Windows:
- Metal doors for LT Room (fire-rated).
- Security-grade windows for Guard Room with grills or shutters.
- Annotated with size, type, and swing direction.
Sections and Elevations
Cross-sections showing:
- Height of the structure (typically 2.7–3.0m internal height).
- MEP (Mechanical, Electrical, Plumbing) routing.
- Roof and floor build-up layers.
Annotations & Notes
- Safety notes, signage (like Danger – High Voltage), and electrical safety zones.
- Mention of standards like IS codes, NBC (India), or local regulations.
- Grounding/earthing details shown with symbol annotations.
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