1, percentage of load category. Electrical equipment is divided into lighting load and electric load. They account for different load percentages in different types of buildings, among which ordinary lighting, sockets and air conditioning equipment account for a large proportion.
2. Office building. Including party committees, governments, enterprises and institutions, organizations and community office buildings at all levels. , usually consisting of offices, conference rooms, computer rooms and auxiliary rooms (restaurants, garages, etc.). ).
1) Load characteristics: The electricity load is calculated according to normal working hours, with working days from Monday to Friday and working hours from 8: 00 am to 5: 00 pm. The air conditioning load accounts for 1/4- 1/3 of the total power consumption, and the power consumption load is greatly affected by the temperature change, but the continuous power consumption time is short.
2) Compliance parameters: The lighting design shall meet the requirements of "Design Standard for Building Lighting" GB 50034-2004 on the lighting power density of office buildings.
3. Medical buildings. Including general hospitals, specialized hospitals, rehabilitation centers, emergency centers, nursing homes, etc.
1) Architectural features: The beds in general hospitals can be divided into 300, 400, 500, 600, 800 and 1000 beds; According to the hospital level, it can be divided into three levels, two levels and one level hospitals. It was often involved a few days ago-generally more than two hospitals. Hospitals are generally divided into outpatient department, medical technology department, inpatient department, administration department and logistics department. The layout of general hospitals is decentralized, centralized and semi-centralized. Considering energy saving and convenient use, semi-centralized method is adopted.
2) Load parameters: The lighting design should meet the requirements of "Building Lighting Design Standard" GB 50034—2004 on the lighting power density of hospital buildings.
4. Cultural relics. Including theaters, cinemas, libraries, museums, archives, cultural centers, exhibition halls, concert halls, etc.
Load characteristics: electricity load is calculated according to working hours, which varies with different customers. The air conditioning load accounts for 1/4- 1/3 of the total electricity consumption, which is greatly affected by the temperature change, but the continuous electricity consumption time is short.
5. Commercial buildings. Including department stores, supermarkets, vegetable markets, hotels, restaurants, restaurants, bath centers, beauty centers and so on.
1) load characteristics: the electricity load is calculated according to working hours, and the workshop varies with different clients. Air conditioning load accounts for 1/4 ~ 1/3 of the total electricity consumption, which is greatly affected by temperature change, but the continuous power consumption time is short. The overall lighting of commercial buildings should be configured according to the characteristics of commercial types, including front lighting, hall lighting, window lighting, in-store lighting and facade (appearance) lighting of the whole building, so as to be different and coordinated with each other.
2) Load parameters: The lighting design shall meet the requirements of lighting power density of commercial buildings in Standard for Lighting Design of Buildings (GB 50034-2004).
6. Sports building. Including stadiums, gymnasiums, swimming pools, gymnasiums, etc.
1) load characteristics: the electric load of sports buildings should be treated differently according to the use requirements. Large electrical equipment used only during the competition should be equipped with a separate transformer for power supply. When determining the number of transformers, we should consider the power load characteristics and economic operation conditions of sports buildings, as well as the reliability of power supply system, and choose the power supply scheme of multiple small-capacity transformers. Large venues should also reserve a certain amount of spare capacity as a temporary power supply for holding other activities in the venue.
2) Load parameters: The illumination standard of sports building competition venues shall comply with the provisions of the Design Standard for Building Lighting (GB 50034-2004).
7. teach ken architecture. Including nurseries, kindergartens, primary and secondary schools and institutions of higher learning. Vocational schools, special education schools, etc. It is mainly composed of classrooms (terraced classrooms), laboratories, offices and reading rooms.
1) load characteristics: lighting load is the main load, fluorescent lamps are used for general classroom lighting, and light sources with high color rendering index should be used for art classrooms. In order to avoid light curtain reflection and reduce glare, the long axis of fluorescent lamps should be perpendicular to the blackboard, the height of lighting fixtures from the desktop should not be less than 1.7m, and the blackboard should be equipped with special lighting facilities, with an average vertical illuminance of not less than 2001x. See other chapters for the design points of other functional rooms.
2) Load parameters: The lighting design should meet the requirements of the Building Lighting Design Standard (GB 50034-2004) on the lighting power density of school buildings.
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