河南城建学院本科毕业设计（论文） Abstract

Abstract

The main graduation presented is based on national standards and norms forresidential electric power

supply system design. Its main contents include the following aspects: First, per unit area method, unit load

calculation method indicators. Next, choose the form of step-down box and the location of substation.

Finally, the selectionvoltage and low voltage cable models calculate current and low voltage power

distribution equipment. Outlined box substation lightning protection and grounding, and draw out the

relevant electrical drawings.

Building electrical design, including power distribution system (including the grade of

load, power supply, main wiring mode, variable power distribution station location, number,

capacity and type, relay protection, power compensation, material type and laying cable,

various power distribution equipment type selection and installation mode, the motor start and

control method etc.), lighting system (including a light source and lighting control mode,

selection and installation of outdoor lighting design, lighting cable selection and laying mode),

the lightning protection and grounding protection system.

This paper on the estate for power distribution, lighting, lightning protection and grounding

protection system for the design, construction design for the distribution of the purpose,

significance, design tasks and design basis, and according to the national related standard, the

system supply main electrical connection, load calculation, selection of substation and location

selection, power supply system equipment selection, as well as power supply system protection

equipment; lighting options, light source and lamp selection, reasonable arrangements lamps,

lighting, illumination calculation, evacuation sign lighting, socket, lighting power supply

system design; building lightning protection level and ground types system

selection.According to the code for electrical design of draw related electrical drawings.

Keywords: load calculation; box-type substation; cable; lightning protection and grounding;