Tianqin plan Lightning Protection and Grounding Project Case
I.Project Background
1.Origin of Tianqin Plan:
In 2014,Luo Jun,an academician of the Chinese Academy of Sciences,proposed the Tianqin Plan,aiming at gravitational wave detection in space.The goal of the plan is to deploy three all-synchronous satellites in the earth orbit at a height of about 100,000 km to form an equilateral triangle constellation with a side length of about 170,000 km,and to establish a space gravitational wave observatory in order to open up a window for gravitational wave detection from 0.1 mHz to 1 Hz.
Through this programme,people are expected to obtain a large amount of information that cannot be obtained by other means of detection and unveil more mysteries of the universe.The whole programme is expected to have a total investment of about$15 billion and is planned to be implemented around 2035.
2.The necessity of lightning protection technology:
(1)The advancement of the Tianqin Plan requires overcoming a series of key core technologies,including the establishment of high-precision inertial benchmarks,the conduct of interstellar laser interferometry,and the realisation of discriminative measurements of gravitational wave detection signals.These tasks must be carried out without lightning interference.
(2)In order to ensure that the‘Tianqin Project’can be carried out smoothly,Oumaan Technology Group-Heilongjiang Hengdian Lightning Protection Engineering Co.Ltd.provided the world's leading lightning protection and grounding technology.The lightning protection and grounding reconstruction was carried out mainly in three parts,namely the Moon Laser Ranging Station,Gravitational Wave Detection Laboratory and Emergency Evacuation Project.
II.The moon laser ranging station lightning protection and grounding reconstruction project
1.Construction process
The expert team of Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.adopted comprehensive transformation measures through thorough investigation and analysis,starting from the energy transformation of lightning.
(1)Focused on the transformation of the lead wire shunt,equipment equipotential connection,the use of surge protection devices,and grounding network forming methods.
(2)Use professional-grade lightning protection plugs and decouplers to eliminate the effects of AC stray currents on circuits.
(3)Strengthen the level of impact resistance of the grounding network,which significantly improves the charge neutralisation capacity of the grounding network.
2.Construction results
By solving the problems in the process of lightning energy conversion,it ensures the safe and effective operation of all lightning protection equipment and guarantees the smooth progress of the‘Tianqin Project’.
III.Lightning protection and grounding renovation project of Gravitational Wave Detection Laboratory
1.Construction Background
In order to meet the demand for precision measurement of gravitational waves,gravitational experimental field is usually established in the vibration of small,constant temperature inside the cave,known as the‘cave super-static laboratory’.This approach avoids the effects of ground vibrations and temperature variations on the measurement data.
However,the rocky structure of caves results in high resistivity and poor grounding conditions,leading to grounding resistances that do not meet design requirements.At the same time,high-frequency and low-frequency signals exist in the grounding network at the same time,which interferes with the measurement data and poses a serious risk to the safe operation of the experimental equipment.
2.Construction process
In order to solve these problems,Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.adopts the world's leading flexible grounding technology,through the pouring of flexible grounding electrode and other processes,to enhance the ability of the grounding network to discharge current.
3.Construction results
The transformation effectively solves the problems of high resistivity of rock environment and coexistence of high and low frequency of grounding network,realises the separation of high and low frequency,and enhances the stability of equipment operation.
IV.Emergency lightning protection and grounding modification works for the emergency shelter at Tai Nan Nan,Tangjiawan
1.Construction background
The Tangjiawan Big South Mountain Emergency Shelter Project was built for the construction of laboratories and ancillary facilities for the‘Tianqin Project’.The project includes the main body of the tunnel and the connecting roads.The main body of the tunnel is in the shape of‘Zhong’,with a total area of 24,030 square metres,and the total length of the road is about 199 metres.
2.Construction Difficulties
The Tangjiawan Big South Mountain Project is a tunnel construction project,where the accumulation of groundwater leads to poor drainage,which is a considerable test for the adhesion of materials.The project is a key research project,adjacent to Zhuhai,where seawater is constantly immersed in the ground leading to corrosion.Therefore,the corrosion resistance of the material becomes crucial.
3.Construction process
The construction of the flexible grounding electrode to reduce the resistance,can minimise the resistivity of the medium,resistance reduction factor of up to 0.16.flexible grounding electrode added anti-corrosion formula,effectively delaying the corrosion of the corrosion of the galvanised metal body of the years.The product is a one-time forming reaction irreversible,insoluble in water,so it will not pollute the surrounding land,and does not contain harmful heavy metals,there is no impact on the environment,the theoretical design life of 30 years.
4.construction results
Dasan Mountain lightning protection and grounding project was well received,not only the resistivity is far lower than the owner's requirements,but also in the anti-corrosion and the impact on the surrounding environment is reduced to a minimum.
V.Summary
Oumaan Technology Group has performed excellently in the lightning protection project of‘Tianqin Project’,and has successfully built an efficient and stable lightning protection system with exquisite technology and strict construction standards.The project not only significantly improved the safety protection level of the project,but also provided a safe and reliable working environment for the majority of users,winning widespread praise and unanimous praise.Want to know more about the content,welcome to call the hotline!
Related products recommended:
Flexible Grounding Electrode:excellent resistance effect+anti-corrosion and environmental protection and safety+applicable to a variety of terrain
Surge Protection Device:low output residual voltage+fast response time+overheating automatic disengagement
HD-Lightning Online Monitoring System:key areas to disperse lightning+real-time online monitoring+rapid warning function
I.Project Background
1.Origin of Tianqin Plan:
In 2014,Luo Jun,an academician of the Chinese Academy of Sciences,proposed the Tianqin Plan,aiming at gravitational wave detection in space.The goal of the plan is to deploy three all-synchronous satellites in the earth orbit at a height of about 100,000 km to form an equilateral triangle constellation with a side length of about 170,000 km,and to establish a space gravitational wave observatory in order to open up a window for gravitational wave detection from 0.1 mHz to 1 Hz.
Through this programme,people are expected to obtain a large amount of information that cannot be obtained by other means of detection and unveil more mysteries of the universe.The whole programme is expected to have a total investment of about$15 billion and is planned to be implemented around 2035.
2.The necessity of lightning protection technology:
(1)The advancement of the Tianqin Plan requires overcoming a series of key core technologies,including the establishment of high-precision inertial benchmarks,the conduct of interstellar laser interferometry,and the realisation of discriminative measurements of gravitational wave detection signals.These tasks must be carried out without lightning interference.
(2)In order to ensure that the‘Tianqin Project’can be carried out smoothly,Oumaan Technology Group-Heilongjiang Hengdian Lightning Protection Engineering Co.Ltd.provided the world's leading lightning protection and grounding technology.The lightning protection and grounding reconstruction was carried out mainly in three parts,namely the Moon Laser Ranging Station,Gravitational Wave Detection Laboratory and Emergency Evacuation Project.
II.The moon laser ranging station lightning protection and grounding reconstruction project
1.Construction process
The expert team of Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.adopted comprehensive transformation measures through thorough investigation and analysis,starting from the energy transformation of lightning.
(1)Focused on the transformation of the lead wire shunt,equipment equipotential connection,the use of surge protection devices,and grounding network forming methods.
(2)Use professional-grade lightning protection plugs and decouplers to eliminate the effects of AC stray currents on circuits.
(3)Strengthen the level of impact resistance of the grounding network,which significantly improves the charge neutralisation capacity of the grounding network.
2.Construction results
By solving the problems in the process of lightning energy conversion,it ensures the safe and effective operation of all lightning protection equipment and guarantees the smooth progress of the‘Tianqin Project’.
III.Lightning protection and grounding renovation project of Gravitational Wave Detection Laboratory
1.Construction Background
In order to meet the demand for precision measurement of gravitational waves,gravitational experimental field is usually established in the vibration of small,constant temperature inside the cave,known as the‘cave super-static laboratory’.This approach avoids the effects of ground vibrations and temperature variations on the measurement data.
However,the rocky structure of caves results in high resistivity and poor grounding conditions,leading to grounding resistances that do not meet design requirements.At the same time,high-frequency and low-frequency signals exist in the grounding network at the same time,which interferes with the measurement data and poses a serious risk to the safe operation of the experimental equipment.
2.Construction process
In order to solve these problems,Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.adopts the world's leading flexible grounding technology,through the pouring of flexible grounding electrode and other processes,to enhance the ability of the grounding network to discharge current.
3.Construction results
The transformation effectively solves the problems of high resistivity of rock environment and coexistence of high and low frequency of grounding network,realises the separation of high and low frequency,and enhances the stability of equipment operation.
IV.Emergency lightning protection and grounding modification works for the emergency shelter at Tai Nan Nan,Tangjiawan
1.Construction background
The Tangjiawan Big South Mountain Emergency Shelter Project was built for the construction of laboratories and ancillary facilities for the‘Tianqin Project’.The project includes the main body of the tunnel and the connecting roads.The main body of the tunnel is in the shape of‘Zhong’,with a total area of 24,030 square metres,and the total length of the road is about 199 metres.
2.Construction Difficulties
The Tangjiawan Big South Mountain Project is a tunnel construction project,where the accumulation of groundwater leads to poor drainage,which is a considerable test for the adhesion of materials.The project is a key research project,adjacent to Zhuhai,where seawater is constantly immersed in the ground leading to corrosion.Therefore,the corrosion resistance of the material becomes crucial.
3.Construction process
The construction of the flexible grounding electrode to reduce the resistance,can minimise the resistivity of the medium,resistance reduction factor of up to 0.16.flexible grounding electrode added anti-corrosion formula,effectively delaying the corrosion of the corrosion of the galvanised metal body of the years.The product is a one-time forming reaction irreversible,insoluble in water,so it will not pollute the surrounding land,and does not contain harmful heavy metals,there is no impact on the environment,the theoretical design life of 30 years.
4.construction results
Dasan Mountain lightning protection and grounding project was well received,not only the resistivity is far lower than the owner's requirements,but also in the anti-corrosion and the impact on the surrounding environment is reduced to a minimum.
V.Summary
Oumaan Technology Group has performed excellently in the lightning protection project of‘Tianqin Project’,and has successfully built an efficient and stable lightning protection system with exquisite technology and strict construction standards.The project not only significantly improved the safety protection level of the project,but also provided a safe and reliable working environment for the majority of users,winning widespread praise and unanimous praise.Want to know more about the content,welcome to call the hotline!
Related products recommended:
Flexible Grounding Electrode:excellent resistance effect+anti-corrosion and environmental protection and safety+applicable to a variety of terrain
Surge Protection Device:low output residual voltage+fast response time+overheating automatic disengagement
HD-Lightning Online Monitoring System:key areas to disperse lightning+real-time online monitoring+rapid warning function
