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Đặng Nhật Minh 20222844

The document classifies electrical loads in a residential apartment building into three categories: essential (high priority), non-essential (medium priority), and optional (low priority). It also outlines the components necessary for creating an electrical distribution system diagram, including the utility supply, main distribution panel, transformers, sub-panels, circuit breakers, and load distribution. This classification and diagramming are crucial for ensuring safety and efficient power management in the building.

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Nhat Minh Dang
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4 views2 pages

Đặng Nhật Minh 20222844

The document classifies electrical loads in a residential apartment building into three categories: essential (high priority), non-essential (medium priority), and optional (low priority). It also outlines the components necessary for creating an electrical distribution system diagram, including the utility supply, main distribution panel, transformers, sub-panels, circuit breakers, and load distribution. This classification and diagramming are crucial for ensuring safety and efficient power management in the building.

Uploaded by

Nhat Minh Dang
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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1.

Identify and Classify Loads Based on Priority

Besides residential loads, a residential apartment building may have several


other types of electrical loads. These can be classified as follows:

Essential Loads (High Priority)

 Emergency Lighting – Ensures visibility during power failures.

 Fire Alarm System – Critical for safety in case of fire.

 Elevators – Necessary for mobility, especially in high-rise buildings.

 Security Systems – CCTV, access control, and intercoms.

 Pumps (Fire and Water Supply) – Fire suppression and water


distribution.

 Medical Equipment (if applicable) – In buildings with health-related


facilities.

Non-Essential Loads (Medium Priority)

 HVAC Systems (Heating, Ventilation, and Air Conditioning) –


Comfort and air circulation.

 Common Area Lighting – Hallways, parking lots, and stairwells.

 Communication Systems – Internet routers, telephone exchanges.

Optional Loads (Low Priority)

 Gym Equipment – Fitness centers or recreational areas.

 Swimming Pool Equipment – Heating and filtration systems.

 Outdoor Signage and Decorative Lighting – Non-essential


aesthetics.

 EV Charging Stations – Growing in importance but not critical.

2. Electrical Distribution System Diagram

To create a proper electrical distribution system diagram, you should


include:

1. Supply from the Utility Company – A medium-voltage power line.

2. Main Distribution Panel (MDP) – Steps down voltage and distributes


power.
3. Transformers – If required, to step down voltage for different loads.

4. Sub-Panels – Separate panels for essential, non-essential, and


optional loads.

5. Circuit Breakers and Protective Devices – To ensure safety.

6. Load Distribution – Clearly indicate connections to elevators, HVAC,


lighting, etc.

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