Is there a requirement for the loop unit number of the distribution cabinet?

1. The labels of the components in the cabinet are all yellow.

2. Parts labels shall be counted according to the bill of materials.

3. The letters of the component item and the serial number of the component item are separated by space characters.

4. Alphanumeric fonts are all in SWIS BT.

5. Slot labels are printed in English capital SWIS BT font.

6. All Chinese labels in the cupboard are official scripts.

7. The standard size of Chinese label in the cabinet is 30mm* 12mm.

8. The terminal label size is 35mm*7mm.

9. Signs should be correct, clear, easy to identify and firmly installed.

GB/T 1 1633-2000，3.5.4

10. Warning signs should be set on the distribution board with rated voltage exceeding 500 volts. ..

GB/T 1 1634-2000，7. 1.2

1 1. All electrical appliances and terminal cards on the front and back of panels and cabinets shall be marked with numbers, names, uses and operating positions, and the marked handwriting shall be clear, neat and indelible.

GB 50 17 1-92，3.0.4

12. On and near each electrical component, there should be a component code consistent with the principle circuit diagram, and near each pair of fuses, there should be a sign of rated fuse current.

CB*/Z342-84，7.8

13. After the components in the cabinet are installed, the correct labels shall be affixed immediately according to the bill of materials and schematic diagram.

14. The label is attached to the bottom plate and the assembly body near the assembly. The location should be obvious and easy to find, try not to cover the main model of the parts and not to be close to the operating position of the personnel. The Chinese label consistent with the nameplate on the front of the panel shall be affixed near the panel elements.

15. The fuse shall have a durable mark indicating its rated voltage, rated current and rated breaking capacity.

GB/T 1 1634-2000， 4.8.7.4

16. When fuses with several voltage and current specifications are installed, the specifications shall be marked in detail next to the base.

GB 50254-96， 10.0.5

17. Buttons installed together should have numbers or different identification marks, and the "emergency" button should have a protective cover.

GB 50254-96， 7.0.3.3

18. The label shall be attached to the mounting seat and the component body of the combined component, so as to play a role of identification in any state.

19. If the loop voltage exceeds 400V, the terminal board shall be fully insulated and painted with a red sign.

3.0.2.3 GB 50 17 1-92

20. Affix the relevant information table of fuse in the cabinet: including fuse label, voltage grade of fuse, fuse core specification, Chinese definition of on-off circuit, etc. And this watch is attached near the fuse position in the cabinet.

2 1. If there is a PLC-I\O module in the cabinet, the address table of this PLC should be posted in the cabinet to facilitate the on-site debugging and maintenance personnel to find the address. The table includes the Chinese definition of each I/O and the corresponding part number.

22. Stick the typesetting diagram of each electric cabinet on the cupboard door.

23. Stick a terminal wiring table on the cupboard door, including information such as the number of incoming cables.

24. Plexiglass protective plates are all affixed with protective signs.

25. Valuable and precise adjustable components such as PLC and transmitter are affixed with warning signs.

26. When there are multiple power supply devices with output voltage levels in the cabinet, each power supply should be marked with the voltage level value.

27. A warning sign should be affixed next to the indicator light of the 380v or 220V panel.