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JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Foundation Requirements
Before installation, build concrete platforms and trenches on the selected ground.
The foundation construction requirements are as follows:
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Issue 02 (2023-09-30)
NO TE
● Class C environment: Outdoor areas more than 500 m away from the sea. If a site
is near a pollution source, it is 1500–3000 m away from heavy pollution sources,
such as smelteries, coal mines, and thermal power plants; 1000–2000 m away from
medium pollution sources such as chemical factories, rubber plants, and
electroplating factories; or 500–1000 m away from light pollution sources, such as
packing houses, tanneries, boiler rooms, slaughterhouses, landfill sites, and sewage
treatment plants.
● Class D environment: Sea environments or outdoor areas within 500 m away from
the sea. If a site is near a pollution source, it is within 1500 m away from heavy
pollution sources such as smelteries, coal mines, and thermal power plants, within
1000 m away from medium pollution sources such as chemical, rubber, and
electroplating industries, or within 500 m away from light pollution sources such as
packing houses, tanneries, boiler rooms, slaughterhouses, landfill sites, and sewage
treatment plants.
● Class E environment: Special environments, such as underground or underwater
environments.
The foundation shall meet the installation and load-bearing requirements of
the container.
The foundation must be above the highest water level of the local area in
history and at least 300 mm above the ground.
The overall flatness of the foundation is less than or equal to 10 mm.
Bury a grounding grid and reserve a ground copper bar at the ground position
of the container. One end of the copper bar must be connected to the buried
grounding grid, and the other end must be connected to the main ground
point of the container. When burying a grounding grid, reserve sufficient
length for the ground copper bar to connect to the main ground point of the
container.
The transformer station adopts bottom cabling. Cables shall be buried under
the LV room and MV room in advance.
The inner diameter of the protective tube shall not be less than 1.5 times the
outer diameter of the cable (including the protective layer).
Construct drainage facilities based on the local geological conditions and
municipal drainage requirements to ensure that no water will accumulate at
the equipment foundation. The foundation construction must meet the local
drainage requirements for the maximum historical rainfall. The drained water
must be disposed of in accordance with local laws and regulations.
Reserve pressure relief channels for the ring main unit, and add protective
measures to prevent high temperature gas from burning nearby personnel
during pressure relief.
The insulated ladder shall not block the inlets or outlets of the LV or MV
cables. You are advised to put the insulated ladder in front of the door during
maintenance.
According to the IEC 61936 standard, an oil-immersed transformer that uses
mineral oil as the insulation liquid must be equipped with an oil tray to
prevent groundwater or soil pollution caused by insulation liquid leakage.
Copyright © Huawei Technologies Co., Ltd.
3 Installation Environment Requirements
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