DLT459-2000 水工建筑物水泥灌浆施工技术规范 Technical conditions of power system dc power supply cabinet.pdfVIP

5.3 结构与元器件的要求 Requirements for structure and elements and components 5.3.1 结构要求 Requirements for structure 5.3.1.1 柜体外形尺寸（柜体外形尺寸是指柜体框架尺寸）应采用以下两种之一，根据 需要，柜的宽度和深度可取括号中的调整值。 The dimensions of the cabinet (i.e. the size of the cabinet frame) shall be subject to one of the following, depending on the needs, and adjustment width and depth values of the cabinet in parentheses may be adopted. 2200mm×800 (1000、1200) mm×600 ( 800) mm （优选值）（高×宽×深）； 2200mm×800 (1000, 1200) mm×600 (800) mm (preferred value) (H×W×D); 2300mm ×800 (1000、1200) mm ×550 (800) mm 。 2300mm × 800 (1000, 1200) mm × 550 (800) mm. 0 高度公差为±2.5mm ，宽度公差为 mm ，深度公差为±1.5mm 。 -2 Height tolerance shall be ± 2.5mm, width tolerance 0-2mm and depth tolerance ± 1.5mm. 5.3.1.2 柜体应设有保护接地，接地处应有防锈措施和明显标志。门应开闭灵活，开启 角不小于90 °门锁可靠。 The cabinet shall be provided with protective earthing, and the earthing location shall be provided with rust-proof measures and obvious signs. Cabinet door shall have flexible opening and closing functions with an opening angle not less than 90°and its lock shall work reliably. 5.3.1.3 紧固连接应牢固、可靠，所有紧固件均具有防腐镀层或涂层，紧固连接应有防 松措施。 Fastener connection shall be secured and reliable. All fasteners shall have anti-corrosion coating or coating, and tightening measures shall be available for the fastener connection. 5.3.1.4 元件和端子应排列整齐、层次分明、不重叠，便于维护拆装。长期带电发热元 件的安装位置应在柜内上方。 Elements and terminals shall be neatly arranged and leveled free of any overlap for easy maintenance and disassembly. The installation location for long-term live heating element shall be on the cabinet. 5.3.2 元器件的要求 Requirements for elements and components 5.3.2.1 柜内安装的元器件均应有产品合格证或证明质量合格的文件。不得选用淘汰的、 落后的元器件。 Elements and components installed in the cabinet shall be provided with a product certificate