some graduate school Electrical construction scheme of laboratory building
This document is the electrical construction scheme of the experimental building of a research institute, 35 pages in total, and is a Luban Prize project. Power supply: an independent 10kV working power supply is introduced from the substation in the office area of the project, and the incoming cable is led through the pipe and buried in the power transformation and distribution room on the ground floor; The 0.4kV standby power supply is from the standby power supply in the living area, and the power supply mode: the project adopts the combination of radial power supply and trunk power supply; Radial power supply is used for power load, and trunk power supply is used for lighting. Two circuits of power supply are used for the first level load. Lighting system: the lighting power supply is led out from the power transformation and distribution room of the building, the power supply voltage is 380/220V, and the lighting voltage is 220V. The lighting main line shall be laid along the wall in the shaft through the metal bridge, and the branch line to the distribution box on each floor shall be laid with BV-0.45/0.75kV wires through welded steel pipes, buried in the wall and buried underground. The characteristics of the electrical construction of the project: large quantities of works, complete construction projects, and more cross cooperation with other disciplines make the construction difficult. In order to ensure the construction period and quality, the construction phase needs overall arrangement, strengthen coordination, and strictly comply with the following general construction deployment principles: (1) strictly follow the drawings, and the construction scheme, technical measures and national specifications shall prevail, Ensure that the project quality meets the excellent standard. (2) The electrical construction shall follow the principle of underground before ground, reserving and embedding pipelines before installation, and indoor before outdoor. Construction key points and precautions: (1) The quality of purchased pipes and various boxes and boxes is related to the whole piping process, and high-quality products should be selected. (2) Gas cutting is strictly prohibited when laying and cutting steel pipes. (3) Welded steel pipes shall be connected and casing pipes shall be used for concealed connection to prevent electric welding perforation