多年来,笔者在建筑电气设计图纸中发现一些常见问题,下面试用《民用建筑电气设计规范JGJ/T16-92》(下面简称《规范》)作一分析。 1.防雷计算问题 《规范》中防雷分为三级。在实际中,设计人员接触的是大量的三级防雷的建筑物。三级防雷的标准中用得较多的有两条,第12.2.3.1条:当年雷击次数大于或等于0.05时,或通过调查确认需要防雷的建筑物。12.2.3.2条:建筑群中最高或位于建筑群边缘高度超过 Over the years, the author found some common problems in the architectural electrical design drawings, the following trial “civil electrical design specifications JGJ / T16-92” (hereinafter referred to as “norms”) for an analysis. 1. Lightning calculation problems “Code” in the mine is divided into three levels. In practice, designers are exposed to a large number of three lightning protection buildings. There are two standards that are used more frequently in the third-level lightning protection. Article 12.2.3.1: The number of lightning strikes in the year is greater than or equal to 0.05, or the buildings that need to be protected against lightning are confirmed through investigation. 12.2.3.2: The height of the building complex or at the edge of the building complex exceeds