電氣工程施工質(zhì)量控制要點.doc

電氣工程施工質(zhì)量控制要點
一、 概述

二、 配管
１、 鋼管必須用專用彎管器彎制，彎曲處不應(yīng)有折皺、凹陷和裂縫且彎扁程度不應(yīng)大于管外徑
的１０％，管口應(yīng)平整、光滑。彎曲半徑不應(yīng)小于管外徑的６倍，當(dāng)埋設(shè)于地下或混凝土內(nèi)時，不應(yīng)小于管外徑的１０倍。
２、 鋼管管徑在Ф５０及以下的，必須采用螺紋連接，不得采用套管連接。鋼管管徑在Ф６３
及以上的，可以使用套管焊接，套管應(yīng)處在兩管對口的中心，長度為管外徑的１•５～３倍，焊接應(yīng)嚴(yán)密。
３、 鍍鋅鋼管應(yīng)采用螺紋連接或緊定螺釘式套管連接，不得采用熔焊連接。其跨接接地應(yīng)采用
專用接地線卡子連接接地線，不得采用熔焊連
Construction Quality Control of Electrical Engineering
I. Introduction

Second, piping
1, tube bending device must be dedicated bending, the bend should not have wrinkles, dents and cracks and the degree of bending flat tube outer diameter not greater than
10% of the nozzle should be flat and smooth. Bending radius of not less than 6 times the external diameter of pipe, when laid on the ground or in concrete should not be less than 10 times the pipe diameter.
2, tube diameter in the Ф50 and below, must be threaded connections, pipe connections shall not be used. Pipe diameter in Ф63
And above, you can use the pipe welding, pipe should be in two counterparts, the center of the length of pipe outside diameter of 1 • 5 ~ 3 times, welding should be tight.
3, galvanized steel pipe should be threaded or screw-type pipe connection adapter may not be connected by welding. The inter-and ground should be
Dedicated ground wire clamp to connect ground wire, not connected by welding
 

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