1. After the distribution cabinet is transported to the site, organize unpacking inspection to check whether there is deformation and paint falling, whether the instrument components are complete, and whether there are defects in spare parts and instructions, and make unpacking records.

2、根据施工图的布置，按顺序将开关柜放在基础型钢上。成列柜就位后，先找正两端的柜，再在柜下上三分之二高的位置绷上小线，逐台找正，以柜面为标准。找正时采用0.5mm垫片进行调整，每处垫片多不能超过三片。

2. According to the layout of the construction drawing, the switch cabinet shall be placed on the foundation section steel in sequence. After the rows of cabinets are in place, first align the cabinets at both ends, then stretch a small line at the two-thirds height from the bottom to the top of the cabinet, and align them one by one, taking the cabinet surface as the standard. The alignment shall be adjusted with 0.5mm gaskets, and each gasket shall not exceed three at most.

3、就位找正后，按柜固定螺孔尺寸进行固定，柜体与柜体、柜体与侧挡板均用镀锌螺丝连接。高、低压开关柜与预留角钢进行牢固焊接，电缆夹层上空明露部分用花纹钢板满铺，柜前、柜后均用1200mm×10mm（宽×厚）绝缘满铺。

3. After positioning and alignment, fix the cabinet according to the size of the cabinet fixing screw hole. The cabinet body and the cabinet body, and the cabinet body and the side baffle are connected with galvanized screws. The high and low voltage switchgear shall be firmly welded with the reserved angle steel. The exposed part above the cable interlayer shall be fully paved with checkered steel plate, and 1200mm shall be used in front and back of the cabinet × 10mm (width) × Thick) insulation shall be fully paved.

4、开关柜其相邻两柜顶部水平度偏差不大于2mm，全部柜顶部水平偏差不大于5mm，其相邻两柜边不平度不大于1mm，全部柜面不平度不大于5mm，柜间接缝不大于2mm。

4. The levelness deviation of the top of two adjacent cabinets of the switchgear shall not be greater than 2mm, the levelness deviation of the top of all cabinets shall not be greater than 5mm, the edge unevenness of two adjacent cabinets shall not be greater than 1mm, the unevenness of all cabinets shall not be greater than 5mm, and the joint between cabinets shall not be greater than 2mm.

5、设备定位后，对内部紧固件再次紧固及检查，尤其是导体连接端头处。柜内接线完毕，用吸尘器柜内杂物，保持设备内外清洁，准确标识设备位号、回路号。配电柜安装完成后，安装柜上方的的桥架。配电柜进出电缆开孔位置由供货方按尺寸预留。电缆敷设完成后封闭。桥架与柜内接地母排用专用接地线可靠接地。桥架与配电箱（柜）连接处采用橡胶板连接，以保护导线和电缆。

5. After the equipment is positioned, the internal fasteners shall be tightened and checked again, especially at the conductor connection end. After the wiring in the cabinet is completed, remove the sundries in the cabinet with a vacuum cleaner, keep the inside and outside of the equipment clean, and accurately identify the equipment tag number and circuit number. After the distribution cabinet is installed, install the bridge above the cabinet. The opening position of incoming and outgoing cables of the distribution cabinet shall be reserved by the supplier according to the size. Close after cable laying. The bridge and grounding busbar in the cabinet shall be reliably grounded with special grounding wire. The connection between bridge and distribution box (cabinet) is connected with rubber plate to protect wires and cables.