1. Design Scope: The project's professional engineer is responsible for proposing the overall power supply and distribution system planning. The detailed design is carried out by the local power supply company's design institute, while the architectural design institute handles the specific design of the power distribution cabinets within each building, extending down to the indoor household electrical distribution system.
2. Each functional area must be separately metered, including kindergartens, commercial outlets, property management offices, and other rooms with distinct usage conditions. These areas should be equipped according to their specific functions—for example, maintenance rooms require dedicated power supply.
3. For pump houses and heat exchange stations with an installed capacity of 100 kW or less, a separate power supply should be provided by the Bureau Verification Substation. The power receiving cabinet and distribution box should be located inside the pump house and heat exchange station, with separate metering units to measure consumption. If the capacity exceeds 100 kW, an independent power transformer should be used.
4. The domestic water and fire water equipment in the pump house must be supplied and metered separately to ensure proper monitoring and control.
5. The fire alarm system, fire fans, pumps, and elevators should be equipped with dual-circuit power supply cabinets or boxes, meeting the requirement for automatic transfer at the end of the circuit. Multiple elevators and various types of fans can use dual-power switch cabinets, with individual metering for each unit.
6. According to Vanke Group's strategic procurement standards, Schneider E9-K series products are used for household distribution boxes, while Shanghai Liangxin series products are used for external distribution systems. Centralized meter boxes also utilize the Shanghai Liangxin series.
7. Multi-story residential buildings are equipped with separate public metering boxes for each individual building, directly powered by the power supply cabinets. These boxes provide electricity for common facilities such as motion-sensor lights, video intercom systems, cable TV, and IP broadband. In high-rise buildings, power is supplied through a self-transformer loop and is internally metered. Enclosed single-car garages are equipped with individual meters, and a centralized meter box is installed in public areas, with power allocated based on garage numbers for easy inspection.
8. High-rise rooftops should consider the need for on-site electricity, such as lighting, advertising, and lifting equipment, and should have reserved distribution boxes. For buildings over 100 meters tall, power supply circuits should be reserved for aviation obstruction lights around the surrounding structures.
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