Laboratory water supply engineering

The laboratory supply water pipeline needs to be arranged reasonably to facilitate pipeline maintenance. The internal pipeline lines should be as short as possible, horizontal and vertical, while avoiding crossing, to make the water supply and drainage safer and more reliable. Ordinary laboratory pipelines are usually arranged along corridors, walls, columns, ceilings, and other locations, with exposed pipes for easy observation, but exposed installation can easily accumulate dust. Therefore, some laboratories with higher requirements may choose concealed installation, with pipelines laid in basements, trenches, or public corridors. All concealed pipelines should be equipped with corresponding maintenance holes at the position of the control valve for easy troubleshooting and repair.

Laboratory water supply engineering

Reference basis for laboratory water supply:GB50015-2010 "Code for Design of Building Water Supply and Drainage"、GB50268-2008 "Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering".

The main reference standards for electrical engineering design and construction are:GB50016-2014 "Code for Fire Protection Design of Buildings" (2018 edition)、GB50054-2011 "Code for Design of Low Voltage Distribution"、GB50052-2009 "Code for Design of Power Supply and Distribution Systems"

The process and acceptance of hydropower engineering during laboratory construction

1. The water and electricity pipelines in the laboratory construction are laid under the floor by the civil engineering party through pre embedded pipes and led to the central platform position; For the side platform, the water and electricity pipelines are buried in the wall by the civil engineering party and led to the designated location. The remaining work will be completed by the laboratory contractor. For the central station, the water and electricity pipelines are hidden in the middle of the bottom cabinet; For the side platform, the water and electricity pipelines are hidden behind the bottom cabinet. The water for the emergency flushing device is introduced through a pre embedded pipe inside the wall.

2. The laboratory contractor starts installing and connecting various cables, pipelines, embedded pipes, sockets, etc. from the access points left by the civil engineering party. Mark all contents such as sockets, service columns, etc. on the relevant diagram.

3. Cables and water pipes must have relevant proof of their reliability.

4. Each onefume hoodThere are 2 electrical sockets and 1 cold water outlet to meet the user's requirements. The power sockets on the workbench are indicated on the relevant side view.

5. All switches and sockets must be installed outside the fume hood.

6. All air circuit breakers in the control box are labeled with their associated switches and sockets. Laboratory Decoration - Beijing Yinghai Dongxu

7. The installation process must comply with local regulations, and the installation and inspection of all electrical appliances must meet the set requirements and be recorded. These record documents will be delivered to the end user.

8. All power sources and appliances should be kept at a safe distance from sinks, emergency flushing devices, etc.

9. Set up instrument grounding devices in suitable locations in laboratory buildings. Some instruments such as XRF, AAS, ICP, etc. require grounding with a grounding resistance of less than 0.5 Ω.

10. A schedule is needed to determine the transportation time and ensure that the laboratory has sufficient space to store the accessories, which can be installed immediately upon arrival.

11. All installation work must meet relevant standards and be verified by electrical engineers.

12. Electrical circuits should be separated from LAN and telephone lines to avoid signal interference.

13. Proof must be submitted during the inspection process. All results must be submitted to the user.

14. There is a one-year quality assurance period from the date of project delivery.

15. Quality issues caused by laboratory contractors or related subcontractors during transportation, installation, and inspection are guaranteed.

The acceptance of laboratory water and electricity renovation can be carried out from the following aspects:

1. Check if the materials used comply with national standards.

2. Check if the construction is carried out according to the drawings.

3. Whether the construction process complies with regulations.

4. Whether the actual effect of the completed renovation meets the design requirements.

5. Drainage should undergo a water test to see if there is any leakage.

6. Conduct a water splashing experiment to see if the floor drain is located at a lower point.

7. Check if the installation of the guard's sanitary ware meets the requirements and is securely installed without tilting.

8. Perform a pressure test on the water supply pipe and monitor for any leaks

9. Open the water and check if it flows smoothly. Is the orientation of the water pipe correct.

10. Whether the installation of the distribution box meets the regulatory requirements, whether the internal wiring is clear and orderly, and whether there are markings. Perform open circuit tests one by one to check the functionality of each circuit.

11. Whether the distance between the switch installation position and the door edge meets the requirements, whether the sequence of multiple switches is correct, and whether the elevation meets the drawing requirements.

12. Whether the installation elevation of the socket meets the requirements of the drawing, and whether the zero ground fire wiring of the socket is correct and effective. The standard is left zero, right fire, and middle ground.

13. Whether the installation of lighting fixtures meets the requirements of the drawings.

14. Are the switch sockets installed on the wall, and are there splash proof boxes for the sockets in the kitchen and bathroom.

15. Perform insulation resistance testing to ensure that the insulation resistance between phases meets the specified requirements.

16. Conduct a power on test to check the functionality of the lamp socket.

17. Check if the wiring inside the equipotential box is connected to any metal objects in the bathroom.

18. Perform functional inspection on weak electrical sockets.