修建电气装置工程的通病 文本文档(国外英文资料).docVIP

建筑电气安装工程的通病 文本文档(国外英文资料) 2, cause analysis, (l) and the construction personnel are not proficient in the wiring technology and technology of the conductor. (2), material buyer didnt save the construction in accordance with the requirements for all kinds of wire color and quantity, or construction management personnel in order to save material and mix. 3, the preventive measures (l) and strengthen the training of construction personnel on the learning and skills of the specification. (2) the connection of the multi-strand conductor and the application of galvanized copper joint is applied to avoid the appearance of sheep eye circles. (3) the wires connected to the terminal and the terminal are only appropriate for one root, for example, two of them, and a flat gasket in the middle; No more than 3 connections are allowed. (4) the wire arrangement should be horizontal and vertical, the length of the line should be kept in accordance with the line head, and the conductor should not be exposed to the conductor when the wire is plugged into the terminal. The copper joint should be covered with the same color of the wire as the wire. (5) the materials purchasing personnel must be accompanied by the various colored wires. (6), construction personnel should clearly distinguish between phase line, zero line (N), grounding protection line (PE) and to distinguish the color target, the effect of the PA phase - yellow, B - green, C phase - red; Single phase is generally appropriate to use red; (N lines) apply light blue or blue; The ground protection line (PC class) must be used with a yellow and green two-color wire. The installation and wiring of the distribution box are not in conformity with the requirements Phenomenon of l, (l), the box body and the wall have a gap, the box body is not straight. (2) the mortar and sundries in the box are not cleaned up. (3) the open hole of the box is not in line with the requirement, especially with the welding or gas welding, the paint pr