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《电气装置工程施工及验收规范》(GBJ—232—82)中,第十三篇第2.1.2条规定:“暗配的电线管路……埋入墙或混凝土内的管子,离表面的净距不应小于15mm。”由于按习惯方法施工,诸如粘土砖墙体边砌筑边锛去砖角,既影响砌筑速度,也造成埋管槽体边缘参差不齐且砂浆不饱满;其次是墙体刚砌完即用钢钎凿槽,因砂浆还无强度,影响墙体结构,待砂浆完全硬结再凿槽又加大
In the “Code for the Construction and Acceptance of Electrical Installations” (GBJ-232-82), Section 13.2 of the Thirteenth Provision stipulates: “Hybrid wire conduits ... buried in walls or pipes in concrete, from the surface The net distance should not be less than 15mm.”Because of the customary construction method, such as clay bricks, the edge of the masonry bricks will not only affect the masonry speed, but also cause the edge of the buried pipe body to be uneven and the mortar is not full; After the wall has been erected, the steel braze chisel groove is used. Because the mortar has no strength and affects the wall structure, the mortar is completely hardened and then the chiseling groove is increased.