Page 1 of 8TECHNICAL SPECIFICATIONS FOR CONSTRUCTION OF PANEL, CABINET AND SECONDARY CIRCUIT1 TECHNICAL SPECIFICATION OF CONSTRUCTION1.1 Installation Construction Condition The adopted material, component and equipment shall be all conform to design requirement, and the national standard equipment shall have normal nameplate and certificate of product quality. The design document and other technical documents are complete. Construction drawings have been jointly checked up, technique clarification and necessary technical training shall have been accomplished.The quality of building and structure relating to installation of panel, cabinet and secondary circuit shall conform to relevant national existing stipulations about Architecture Engineering Construction and Acceptance Code. In case there are special requirements for equipment and design, it shall also be metThe roof and floor shall not have leakage after construction. Indoor floor work shall be completed. Embedded part and preformed hole shall conform to design, and the embedded part shall be firmly fastened. The decorative work that may damage the installed equipment or couldnt be carried through after installation of equipment shall be completed.1.2 General SpecificationThe label color of mimic bus on panel and cabinet shall meet the regulations of following table: Label Color of Mimic BusVoltage (kV) ColorAC 0.23 Dark grayAC 0.40 Yellow brownAC 3 Dark greenAC 6 Dark blueAC 10 Deep redAC 13.8-20 Light greenAC 35 Light yellowAC 60 OrangeAC 110 VermeilAC 154 ShamrockAC 220 PurpleAC 330 WhiteAC 500 Light yellowDC BrownDC 500 Dark purpleNote: 1. Width of mimic bus is 6 - 12 mm.2. Color of equipment shall be as same as the bus with same voltage.3. This table is inapplicable to light current and graphic screen.After installation and adjustment, light current equipment shall be prevented from damage when doing insulated test of small wiring. The preformed hole and cable nozzle in building shall be blocked. The construction, check and acceptance of panel and cabinet shall be implemented according to this specification and shall still conform to relevant existing national code and standard.1.3 Installation of Panel and Cabinet1.3.11.3.2 Installation of foundation shaped steel shall conform to following requirements:Allowable DeviationItemMm / m m / total lengthNonstraightness 1 5Levelness 1 5Position Error and Nonparallelism 51.3.3 After installation of foundation shaped steel, its top shall be 10mm higher than floating ground; packaged cabinet of handcart type shall be executed according to the technical requirements of product. Foundation shaped steel shall have obvious and reliable grounding. The main control panel, relay protecting panel and automatic installation panel are not suitable for welding firmly with foundation shaped steel. 1.3.4 When panel and cabinet installed separately or in line, the verticality, horizontal deviation, deviation of panel and cabinet surface, and allowable deviation of the joint between panel and cabinet shall conform to stipulations of following table: Item Allowable Deviation（mm）Verticality (per meter) 1.5Tops of Tow Neighboring Panels 2Horizontal deviationTop of Row Panel 5Cabinet Surface DeviationEdges of Two Neighboring Panels 1Surface of Row Panel 5Joint between Panels 21.4 Installation of Electrical Apparatus on Panel and Cabinet1.4.11.4.2 Each electrical apparatus shall be able to be dismantled and changed separately and without impacting the fastness of other equipment and lead bundle. Heating element shall be installed at the area in good heat emission condition. The joint wire between two heating elements shall adopt heat resistance lead or bare copper line covered with porcelain tube. 1.4.3 The contact of switch clamping plate shall be in good condition, and enough safe distance shall be provided between neighboring clamping plates and shall not contact the neighboring clamping plate when switching. As to switch clamping plate with one end electrified, the active end shall be without electricity at cut off condition of the plate. 1.4.4 Terminal shall have serial number, and terminals strip shall be easy for replacement and connection; the height from ground ought to be larger than 350mm.1.4.5 As to loop voltage larger than 400v, the terminal strip shall have sufficient insulation and painted in red.1.4.6 The connector of secondary circuit shall adopt copper product; the insulation component shall apply self-extinguished fire retardant materials.1.4.7 Between two conductors, conductor and bare non-electricity conductor inside panel and cabinet, following requirements shall be observed:Allowable Minimum Electric Clearance and Creepage Distance (mm)Electric Clearance Creepage DistanceRated Working Current Rated Working CurrentRated Voltage (v) 63 A 63 A 63 A 63 A 60 3.0 5.0 3.0 5.060V300 5.0 6.0 6.0 8.0300V500 8.0 10.0 10.0 12.01.4.8 The elect