This standard specifies the basic dimension series of panels, racks and cabinets with a height of 44.45 mm. This standard applies to products such as ground, vehicle-mounted, ship-mounted electronic equipment and nuclear electronic instruments. GB/T 3047.2-1992 Basic dimension series of panels, racks and cabinets with a height of 44.45 mm GB/T3047.2-1992 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Series of basic dimensions of panels ,racks and enclosures for vertical increment of 44.45 mm
Subject content and scope of application
GB/T3047.2—92
Recommended GB 3047.182
Part 2
This standard specifies the basic dimension series of panels, racks and enclosures for vertical increment of 44.45 mm. This standard applies to products such as ground, vehicle-mounted and ship-mounted electronic equipment and nuclear electronic instruments. 2 Reference standards
GB 3047.4 Basic dimension series of plug-in boxes and plug-ins with a height of 44.45 mm 3 Typical structural system diagram of electronic equipment (see Figure 1).:
Figure 1 Typical structural system diagram of electronic equipment
Approved by the State Administration of Technical Supervision on October 4, 1992 Plug-in box
Implementation on June 1, 1993
Through board (see Figures 2 to 4)
4.1 Dimension series of width B
482. 6,609. 6,762. 0 mm
See Table 1 for the dimension series of height H,
GB/T 3047.292
101, 6
Note: In Table 1, U44.45mm+H=nXU-0.8mm. When the structural design requires an increase of less than 1U panel width, it is allowed to increase the H value by 1/2 U, but h,h,h, remain unchanged.
4.3 The dimensions of the mounting opening or mounting bracket are shown in Figure 5. The mounting notches and mounting holes shown in Figure 5 are typical. Other hole types or no notches are also allowed. 4.4 The panel type diagram is shown in Figure 6.
GB/T 3047.2—92
13.5 + ld
5 Plug-in panel (see Figure 7)
GB/T 3047. 2-92
5.1 Dimension series of plug-in panel width 6
5. 08 mm series:
17. 2 mm series:
§=17.2Xn
(n is an integer)
(n is an integer)
5.2 The height h of the plug-in panel is selected in accordance with the provisions of GB3047.4. 6 Racks and cabinets (see Figures 8 and 9)
6.1 The dimension series of height H, see Table 2.
Details: When there is no requirement for cabinet merging, H1 is the reference dimension. * The upper edge is also allowed to be used as the reference.
6.2 Dimension series of cabinet depth D
GB/T 3047.2—92
(350),400,(450),500,(550),600,(650),700,800,900mm6.3 Mounting holes
6.3.1 The spacing tolerance of any two mounting holes with a spacing of no more than 1m is ±0.4mm. 6.3-2 Additional mounting holes are allowed. www.bzxz.net
Installation dimensions of panel and rack (or cabinet) in the gram direction (see Figure 10 and Table 3)o
Additional notes:
This standard was proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard was drafted by the Electronic Standardization Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Feng Changyou, Zhu Sicheng, Jiang Xingsen and Zhang Guiyuan. From the date of implementation of this standard, the second part of the original GB3047.1-82 "Basic Dimension Series of Panels, Racks and Cabinets" shall be abolished.
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