Does the anti corrosion FRP tray need to be coated with a grounding flat steel?

Anti-corrosion FRP tray is a bracket structure used for cable laying, which has the advantages of anti-corrosion, good weather resistance, light weight and high strength. When using anti-corrosion FRP tray, whether it is necessary to apply a grounding flat steel needs to be decided according to the specific situation.

Grounding is to ensure the safe operation of electrical equipment and prevent electrical equipment from generating overvoltage due to static electricity, lightning strikes and other reasons, thereby causing harm to equipment and personnel. In some special environments, such as flammable and explosive places, areas with frequent lightning, etc., grounding is essential.

For the anti-corrosion FRP bridge, whether a grounding flat steel is needed depends mainly on the following factors:

1.Environmental conditions: If the environmental conditions of the anti-corrosion FRP bridge are relatively harsh, such as flammable and explosive places, chemically corrosive places, etc., then it is necessary to apply a grounding flat steel to ensure the safe operation of the equipment.

2.Type of electrical equipment: If the anti-corrosion FRP tray is laid with electrical equipment, such as cables, wires, etc., then it is necessary to lay a grounding flat steel inside to ensure that the equipment is well grounded and reduce the impact of static electricity and lightning strikes on the equipment.

3.Legal and regulatory requirements: According to the requirements of relevant national laws and regulations, some specific sites or specific equipment may need to be grounded to ensure the safe operation of the equipment. In this case, the anti-corrosion FRP bridge needs to be coated with a grounding flat steel.

In short, whether the anticorrosive FRP bridge needs to be coated with a grounding flat steel needs to be decided according to the specific situation. When selecting and using anti-corrosion FRP tray, comprehensive consideration should be made according to factors such as environmental conditions, type of electrical equipment and legal and regulatory requirements to ensure the safe operation of the equipment.

Is it necessary to see what cables you are laying in If there are several strong current cables, it is best to use grounding flat steel safety points, if it is all some weak current control cables, it is not necessary.

need, to increase the mechanical strength.

The installation environment of FRP bridge is different, and the requirements are different. In different installation environments, grounding measures are required for the installation of FRP bridge.

1.The installation of FRP bridge in ordinary environment does not need to be grounded;

2.**Hazardous environments need to be grounded, because of the electrostatic dissipation, the release of electrostatic sparks reaches the critical value, and danger will occur. Therefore, the installation of FRP bridge in this environment needs to do grounding measures;

3.The surface treatment of FRP cable tray can be galvanized or electrostatic spraying or hot-dip galvanizing, so that it is convenient for grounding;

4.The first and last ends of the FRP bridge must be grounded, and the connecting part of the FRP bridge should be bridged.

Hello: Metallic. The bridge must be made when laying the silver crack reputation [to protect the zero line (grounding);

FRP material.

The bridge and the front section when laying the cable can not be done

Protective neutral wire (ground).

Because the FRP bridge is [

insulators, and with.

supports" have nothing to do with it.

Summary. According to the technical requirements, the grounding of the FRP bridge is done on the outside of the bridge.

According to the technical requirements, the grounding of the FRP bridge is done on the outside of the bridge.

FRP cable tray is divided into trough type, tray type and ladder frame type, which is composed of brackets, brackets and installation accessories. When selecting, attention should be paid to whether all parts of the bridge frame meet the requirements of serialization, generalization and standardization. The bridge frame in the building can be registered with independent assumptions, and can also be attached to various buildings (structures) and pipe gallery supports, which should reflect the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance of state fluid, all parts need to be galvanized, installed in the open air outside the building, if it is near the sea or belongs to the corrosion area, the material must have anti-corrosion, moisture resistance, good adhesion, high impact strength physical characteristics.

FRP tray refers to cable ladders, cable trays and high-metal trunking. The glass steel bridge is mainly made of steel, aluminum alloy and glass fiber reinforced plastic. The surface treatment of FRP bridge is divided into painting, spraying, electro-slippery galvanizing, hot-dip galvanizing, powder electrostatic spraying and other processes.

The installation of cable tray is mainly installed along the top plate. Installed horizontally and vertically along the wall, along the shaft, along the ground. Installation along cable trenches and pipe supports, etc.

The support (hanging) frame used for installation can be selected as finished products or self-made. The fixing methods of the support (hanging) frame mainly include welding on the embedded iron parts, expansion bolt fixing, etc.

The installation of FRP bridge shall comply with the following provisions: 1When the length of the straight section of the FRP bridge exceeds 30m, and the length of the aluminum and gold or glass steel bridge exceeds 15m, the expansion joint FRP bridge is provided with a compensation installation at the deformation joint of the building.

2. The FRP bridge should be provided with hangers or brackets in the following places: at both ends of the bridge joints; at each spacing; turns; Vertical trays every other meter. 3.

The installation of hangers and brackets should be kept vertical, neat, firm and without skew. 4.The bridge connecting plate bolt is fixed and fastened without omission, and the nut is located on the outside of the bridge.

5.The cable tray should be laid under the flammable and explosive gas pipeline and the thermal pipeline. 6.

The full length of the metal tray and its bracket should be no less than 2 grounding or zero connections. 7.There shall be no less than 2 connecting fixing bolts with locknuts or washers at both ends of the connecting piece between the metal bridges, and the two ends of the connecting piece shall be connected with copper core grounding wires of not less than 4mm2.

8.The installation of the bridge shall meet the following requirements: The deviation of the left and right sides of the bridge shall not be greater than 50mm; The deviation of the horizontality of the bridge per meter should not be greater than 2mm; The verticality deviation of the bridge should not be greater than 3mm

Summary. Dear, hello, the grounding of FRP bridge generally needs to be grounded, and the grounding position is generally recommended to be done on the outside of the bridge. This is because FRP bridge is an insulating material, if the grounding is not in place or the wrong position, it will affect the normal passage of the current circuit, and even cause leakage accidents.

In the actual situation, the grounding method of FRP bridge should be selected according to the specific situation. If the ambient temperature and humidity of the bridge are high, and there are factors such as static electricity and lightning strikes, it is recommended that the grounding point be set on the outside of the bridge. If the environmental conditions are stable, consider setting the grounding point on the inside of the tray.

Regardless of whether the grounding point is set inside or outside the bridge, it is necessary to pay attention to the quality and reliability of the grounding. At the same time, when setting the grounding point, it is also necessary to avoid mixing the grounding line with other lines to avoid interference. Please pay attention to the check, thank you.

Dear, hello, the grounding of the glass fiber dust steel bridge generally needs to be grounded, and the grounding position is generally recommended to be done on the outside of the bridge. This is because FRP bridge is an insulating material, if the grounding is not in place or the wrong position is connected, it will affect the normal passage of the current circuit, and even cause leakage accidents. In the actual situation, the grounding method of FRP bridge should be selected according to the specific situation.

If the ambient temperature and humidity of the bridge are high, and there are factors such as static electricity and lightning strikes, it is recommended that the grounding point be set on the outside of the bridge. If the environmental conditions are stable, consider setting the grounding point on the inside of the tray. Regardless of whether the grounding point is set inside or outside the bridge, it is necessary to pay attention to the quality and reliability of the grounding.

At the same time, when setting the grounding point, it is also necessary to avoid mixing the grounding line with other lines to avoid interference. Please pay attention to the check, thank you.

Dear, hello, the advantages of FRP bridge: light weight and high strength: compared with traditional concrete or steel structure bridges, FRP bridges are lighter in weight and higher in strength, and can better resist natural factors such as wind and rain and vibration.

Long life: FRP bridge has corrosion resistance and durability, is not easy to be damaged by chemicals such as acid and alkali and ultraviolet rays, and has a long life. Convenient construction:

Due to the flexibility of FRP material, it can be processed and manufactured according to the design requirements, which is easy to install and quick to build. Low maintenance cost: FRP bridges do not need to be overhauled and maintained frequently, which reduces the cost of Weixinye digital protection in the later stage.

Environmental protection and energy saving: FRP materials can be remanufactured to meet the standards of environmental protection and energy saving. Disadvantages of FRP bridges:

Higher cost: Compared with traditional bridges, the material of FRP bridges is higher, resulting in higher construction costs. The design is technically difficult:

FRP material is flexible, requires fine design and manufacturing technology, and has high requirements for designers and construction personnel. Poor fire performance: FRP material is easy to melt or deform at high temperatures, and its fire performance is not as good as other materials.

Poor impact resistance: FRP material is relatively brittle and sliding, with poor impact resistance, and cannot withstand heavy loads. Restricted Scope of Use:

FRP bridges are suitable for bridge design with small and medium spans, and bridges with large spans are difficult to achieve. Please pay attention to the check, thank you.

Summary. Hello, the bridge system should have a reliable electrical connection and be grounded (only for metal trays).

2. When the use of the bridge system is allowed to form a grounding trunk circuit, the following requirements shall be met. The connection resistance between the ends of the bridge should not be greater than ohms, and the grounding hole should be cleared of the insulating coating. In the neutral direct grounding system of 1kV and below, the grounding of the powered equipment is connected to the neutral wire grounding in the system.

When the power supply is cut off at the place, the metal cross-sectional area in the length direction of the bridge shall not be less than the specified value.

3. When laying the grounding trunk along the full length of the bridge, each section (including non-straight section) of the bridge should be reliably connected with the grounding trunk at least one point.

4. For the vibration place, a spring coil should be installed at the connection of the grounding part.

Can the FRP bridge be buried?

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Can the FRP bridge be buried?

Hello, the bridge system should have a reliable electrical connection and be grounded (only for metal trays). 2. When the use of the bridge system is allowed to form a grounding trunk circuit, the following requirements shall be met. The connection resistance between the ends of the bridge should not be greater than ohms, and the grounding hole should be cleared of the insulating coating.

In the neutral point direct touch grounding system of 1kV and below, the grounding of the powered equipment is connected to the neutral wire grounding in the system. When the installation is equipped with a dynamic cut off power supply and buried noise, the cross-sectional area of the metal in the direction of the length of the bridge shall not be less than the specified value. 3. When laying the grounding trunk along the full length of the bridge, each section (including non-straight sections) of the bridge should have at least one point to be reliably connected with the grounding trunk.

4. For the vibration place, a spring coil should be installed at the connection of the grounding part.

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