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近年来随着村镇人民生活水平的提高,一栋栋住宅建筑拔地而起,它无疑给村镇的繁华增加了一道美丽的风景线,给人民居家生活提供了很多方便,但也出现了一些不如人意的地方,下面就村镇住宅电气设计的几个方面做以下分析。 一、供配电系统: 1、供配电系统及PE线选择: 村镇住宅建筑多采用小区建设形式,因此应结合建筑总图,使供电负荷尽量一次到位。小区供电负荷采用二级负荷设计,即采用单路电源引入小区总配电室,在总配电室处做重复接地,在总配电室后将中性线和保护线分开。为保证供电可靠性,供电半径不应过大,一般在250米以内,实现环路供电,电缆直埋敷设方式引至建筑
In recent years, with the improvement of the living standards of the people in the villages and towns, a residential building has risen. It has undoubtedly added a beautiful landscape to the prosperity of the villages and towns, and has provided people with a lot of convenience in their home life, but some unsatisfaction has also emerged. In the following places, the following analysis will be made on several aspects of the electrical design of villages and towns. 1. Power supply and distribution system: 1. Selection of power supply and distribution system and PE line: The residential buildings in villages and towns are often constructed in the form of residential communities. Therefore, the overall construction plan should be combined to make the power supply load as far as possible. The residential power supply load is designed with a secondary load, that is, a single power source is used to introduce the total power distribution room in the community, and repeated grounding is performed at the total power distribution room. After the total power distribution room, the neutral line and the protection line are separated. In order to ensure the reliability of power supply, the power supply radius should not be too large, generally within 250 meters, to achieve loop power supply, direct laying of cables to the construction