CN211580429U

CN211580429U - Passive moisture-proof and rust-proof electrical cabinet

Info

Publication number: CN211580429U
Application number: CN202020697809.5U
Authority: CN
Inventors: 袁振; 王宇川; 王少华
Original assignee: Cetc Baoli Beijing Technology Co ltd
Current assignee: Cetc Baoli Beijing Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-09-25
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a passive moisture-proof rust-resistant electrical cabinet, the electrical cabinet comprises a gas phase rust-resistant part, a waterproof rust-resistant part, a closed rust-resistant part and an intelligent humidity-measuring rust-resistant part, wherein the gas phase rust-resistant part comprises a condensation-proof gas sealing and blocking material arranged at the bottom in the electrical cabinet and a rust-resistant film box arranged on the inner side wall of the electrical cabinet, so that external moisture is prevented from flowing in; the waterproof and rust-resistant part comprises dew-proof cotton arranged at the top in the electrical cabinet to prevent the top of the cabinet from dripping; the closed type rust resisting part comprises peelable sealant wrapped on the surface of an exposed wire end or a terminal, so that the small-sized fixed electric appliance device is prevented from being rusted; the intelligent humidity measuring and rust resisting part comprises an intelligent constant humidity sheet arranged on the inner wall of the electrical cabinet, and the humidity in the electrical cabinet is monitored in real time by utilizing the humidity absorption and humidity elimination performance of the intelligent constant humidity sheet.

Description

Passive moisture-proof and rust-proof electrical cabinet

Technical Field

The utility model belongs to the technical field of the dampproofing rust that hinders of electrical apparatus, concretely relates to passive dampproofing rust that hinders regulator cubicle.

Background

With the development of modern electrification technology, the integration and intensification of electrical appliances become the mainstream development trend. The electric integrated control or operation cabinet is widely applied to the fields of chemical industry, environmental protection, electric power, metallurgy, nuclear industry, fire safety monitoring, traffic and the like. The regulator cubicle and inside components and parts are made by the metal mostly, because the service environment of different trades regulator cubicles is different, and the climatic conditions of each place is also different, and the inside and the outside of regulator cubicle all receive the erosion of moisture easily, and then cause the corrosion, seriously influence the life of regulator cubicle and inside components and parts, and then influence whole electrical system's use.

Because the regulator cubicle is inside to have a large amount of independent meticulous metal components and parts, the structure is complicated, and the operation frequency is higher, changes frequently, and the technical staff in the field is difficult to carry out careful dampproofing rust resistance to every metal components and parts and handles, and work load is big and efficiency is lower, and the treatment effect is also not good. In addition, the environment and the climate in which the electrical cabinet is used are different, so that the difficulty of moisture resistance and rust resistance is increased. At present, a common method is to use a dehumidifier to dehumidify the electrical cabinet, so that not only is the power consumption increased, but also the volume and the electrical operation risk of the electrical cabinet are increased. Therefore, aiming at the field of the electrical cabinet with a complex and precise structure, a complete set of technology aiming at a large number of fine metal components and complex moisture and rust prevention requirements is lacked, and meanwhile, the energy consumption and the equipment operation and maintenance risks can be reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a passive moisture-proof and rust-resistant electrical cabinet, which comprises a gas phase rust-resistant part, a waterproof rust-resistant part, a closed rust-resistant part and an intelligent humidity-measuring rust-resistant part, wherein the gas phase rust-resistant part comprises a condensation-proof gas sealing and blocking material arranged at the bottom in the electrical cabinet and a rust-resistant film box arranged on the inner side wall of the electrical cabinet, so as to prevent the inflow of external moisture; the waterproof and rust-resistant part comprises dew-proof cotton arranged at the top in the electrical cabinet to prevent the top of the cabinet from dripping; the closed type rust resisting part comprises peelable sealant wrapped on the surface of an exposed wire end or a terminal, so that the small-sized fixed electric appliance device is prevented from being rusted; the intelligent humidity measuring and rust resisting part comprises an intelligent constant humidity sheet arranged on the inner wall of the electrical cabinet, and the humidity in the electrical cabinet is monitored in real time by utilizing the humidity absorption and humidity elimination performance of the intelligent constant humidity sheet.

The regulator cubicle characteristics and the moisture-proof rust-resistant requirement of hindering of different positions and electrical part in to the cabinet, the cooperation uses different moisture-proof rust-resistant parts, will the moisture-proof dew is sealed stifled group material, is separated the passive moisture-proof rust-resistant part of dew cotton and strippable sealed glue with the active moisture-proof rust-resistant part of hindering rust diaphragm capsule and the permanent wet piece of intelligence combines organically, to the moist characteristics in the different moisture sources of regulator cubicle, has formed the technical scheme that a whole set of moisture-proof rustproof rusted-resistant. The utility model discloses a moisture-proof hinders rust material or part does not need power or outside power equipment, relies on the moisture-proof of material itself to hinder the rust function operation, has realized passivity.

The anti-condensation gas sealing and blocking component is arranged at the bottom of the electrical cabinet and is an important part of gas phase rust resistance, and the anti-condensation gas sealing and blocking component is selected from precast slabs or castable. In practical use, the environment of the bottom of the electrical cabinet is the most humid, the temperature is low, the humidity is high, the ventilation condition is poor, 80-85% of moisture enters the electrical cabinet from the bottom of the electrical cabinet, particularly, the electrical cabinet is provided with a hole at the bottom for a pipeline to enter and exit the cabinet body, the moisture can easily enter the cabinet from the hole, and practices prove that the corrosion of the bottom of the electrical cabinet or a bottom plate is more serious and the speed is higher than that of other parts. Therefore, the bottom of the electrical cabinet is a key part for preventing moisture and rust of the electrical cabinet. The utility model discloses use the sealed stifled group material of anti-condensation dew gas, the moisture diffusion of shutoff, separation cabinet body bottom from the source suppression regulator cubicle corrosion, be the regulator cubicle is dampproofing hinders rusty key part.

Preferably, when the bottom of the electrical cabinet is not provided with a pipeline hole but is an integral plate, the anti-condensation air-tight blocking material is in a prefabricated plate form, is convenient to install and maintain, and can integrally block moisture diffused at the bottom of the cabinet body. Preferably, when the bottom of the cabinet body is provided with the hole, the anti-condensation air sealing and blocking component is in a combined form of a precast slab and a castable or in a castable form, and can tightly seal the hole and the gap between the bottom plate and the side wall of the cabinet body according to different shapes of the bottom plate, so that moisture is completely prevented from entering the equipment.

The anti-condensation air-tight blocking component material comprises A, B bi-components, the component A comprises modified polyether polyol, water, a physical foaming agent, a catalyst and a chain extender, the component B comprises polyisocyanate and diisocyanate, the modified polyether polyol is obtained by reacting and modifying fluorine-containing benzenediol glycidyl ether and polyether polyol, and the fluorine-containing benzenediol glycidyl ether is prepared by reacting epoxy chloropropane and fluorine-containing benzenediol.

The waterproof and rust-resistant part comprises dew-proof cotton arranged at the top in the electrical cabinet, so that the top of the cabinet is prevented from dripping. In actual use, a small part of moisture or humidity enters from the top of the electrical cabinet, and in addition, when the heat emitted during the operation of the electrical cabinet rises to the top, the heat is easy to be condensed, when water vapor is accumulated more, water drops can fall into the electrical cabinet, not only can the internal components and parts be corroded, but also the circuit can be shorted or broken more seriously, so that the potential safety hazard is great. Therefore, the regulator cubicle use separate inside the roof that the cotton covered the regulator cubicle of dew, both the outside moisture of invading of separation regulator cubicle absorbs and prevents the inside condensate water of cabinet from dripping again. The exposure isolating cotton is convenient to install, and holes can be conveniently formed in the holes or pipelines of the top plate of the electrical cabinet in a size-adjustable mode.

The dew separation cotton is of a multilayer structure and comprises an elastic glass fiber grid plate, water absorption cotton and water storage cotton, wherein one layer of water storage cotton is respectively bonded on two sides of the elastic glass fiber grid plate, and one layer of water absorption cotton is respectively bonded on the outer sides of the water storage cotton on the two sides. The water storage cotton is formed by high water absorption resin, and the water absorption cotton is formed by coating hydrophilic materials on the water storage cotton.

The side wall of regulator cubicle sets up a plurality of hinder the rust bellows, is the important part that the gaseous phase hinders rust, and few part moisture or moisture get into from the regulator cubicle side wall, however because the lateral wall area of regulator cubicle that has is great, especially vertical regulator cubicle, use the sealed stifled group material of anti-condensation gas or separate the dew cotton by a large scale, not only extravagant material, dehumidification efficiency is not high, and the cost is great moreover, more importantly, general regulator cubicle passes through the lateral wall heat dissipation, and it will be unfavorable for the timely heat dissipation of regulator cubicle to arrange the material of preventing damp and hindering rust by a large scale, causes the. Therefore, the regulator cubicle sets up a plurality of at the lateral wall and hinders the rust bellows, sets up position and quantity and can set up according to actual humid condition in a flexible way, for example, penetrate/wear out department, gap department, metal part concentrate the department or have special requirement department to set up more at the pipeline and hinder the rust bellows.

The rust-resistant membrane box comprises a membrane box body, a gas-phase rust inhibitor and a gas-phase rust-resistant membrane, wherein the gas-phase rust-resistant membrane is arranged in the membrane box body, and the gas-phase rust inhibitor is placed in the gas-phase rust-resistant membrane. The gas phase rust-resisting diaphragm comprises a substrate layer and a waterproof gas-resisting layer, wherein the substrate layer is a non-woven fabric coated with polyvinylidene fluoride, and the waterproof gas-resisting layer is a non-woven fabric with a microporous structure.

The gas-phase rust inhibitor comprises a rust inhibiting component, polyvinyl alcohol and a solvent, wherein the rust inhibiting component comprises aliphatic amino acid, organic amine, amino acid alkyl ester and benzoate, and the solvent is a mixed solvent of alcohol and water. The rust-resistant film box enables the gas-phase rust-resistant components in the box to volatilize slowly and uniformly, and supplements a protective layer for the metal in the electrical cabinet at any time, so that a long-term corrosion inhibition effect is achieved.

According to the characteristic that a metal wire head or a terminal in the electrical cabinet is generally fixed after being well arranged, the closed type rust resisting part comprises peelable sealant wrapped on the surface of the exposed wire head or the terminal, so that the small-sized fixed electrical appliance device is prevented from being rusted. The peelable sealant is used for hermetically wrapping the metal wire head and the terminal in the electrical cabinet, is convenient to use, can be used for gluing the metal wire head and the terminal by using gluing tools such as a glue gun and the like, is simple and quick, and is peelable, so that the metal wire head and the terminal are convenient to maintain and replace. The sealant can pertinently and effectively prevent the metal wire head and the terminal from rusting, is suitable for the requirements of moisture resistance and rust resistance of small micro-area or volume, and has flexible use and low cost.

The peelable sealant is a peelable PSC terminal sealant, and the PSC terminal sealant comprises a component A (vinyl silicone oil and vinyl silicone resin), a component B (hydrogen-containing silicone oil and hydrogen-containing silicone resin), fluorine-containing silane, an organosilicon modified fluorine-containing acrylate copolymer, a reinforcing filler, a catalyst, a flame retardant and an inhibitor. The PSC terminal sealant has the advantages of small using amount, condensation prevention, stripping, quick curing, flame retardance and insulation.

The intelligent humidity measuring and rust resisting part comprises an intelligent constant humidity sheet arranged on the inner wall of the electrical cabinet, and the humidity in the electrical cabinet is monitored in real time by utilizing the humidity absorption and humidity elimination performance of the intelligent constant humidity sheet. Preferably, the intelligent constant humidity sheet is arranged on the side wall in the electrical cabinet, can automatically absorb or release moisture in the air, and has an intelligent humidity adjusting function. When the humidity of the air in the electrical cabinet exceeds a certain limit, the intelligent constant humidity sheet starts to absorb the moisture in the air, so that the air is dried; when the humidity of the air in the electrical cabinet is lower than a certain limit, the intelligent constant humidity sheet starts to release the moisture of the intelligent constant humidity sheet, so that the air in the electrical cabinet is prevented from being too dry, and dangers such as static electricity and deflagration are prevented.

The regulator cubicle to the moisture-proof rust-resisting demand of different positions and part in the regulator cubicle, cooperate the moisture-proof rust-resisting material of different forms and performance, the corrosion problem of comprehensive treatment regulator cubicle. Specifically, for the bottom of the electrical cabinet with large moisture dissipation capacity, the key prevention and control part is provided, the anti-condensation and anti-rust air-tight blocking material with good anti-moisture and anti-rust effects is used, the whole precast slab is arranged or cast, the air tightness is good, and the moisture dissipation is effectively blocked; for the electrical cabinet top plate with small moisture content and easy condensation and dripping, the part needing water prevention and rust resistance is used, and the condensation cotton can timely absorb the generated condensation water drops while blocking moisture, so as to prevent the internal short circuit of the electrical cabinet; to the less great cabinet body lateral wall of the nevertheless area of moisture content that looses, need compromise the dual demand of dampproofing rust resistance and ventilation cooling, so avoid using the material that the gas tightness is good, the utility model discloses the people uses hinder rust bellows and the permanent wet piece of intelligence and carry out initiative accuse wet to the lateral wall, can realize point face combination, key prevention and control, use in a flexible way, cooperation cabinet body bottom and roof prevent damp rust material, finally realize the wet purpose of dampproofing accuse at all-round no dead angle. The regulator cubicle can prevent that outside moisture from gushing into in a large number, and inside can not have the bright water to drip, form healthy ecological circle, hinder the wet effect of rust membrane box performance dampproofing accuse, set up the permanent wet piece of intelligence simultaneously, the fixed point is dampproofing hinders the rust.

Drawings

Fig. 1 is a structural diagram of a group screen type electrical cabinet at a terminal of a three-remote station.

Fig. 2 is a structural diagram of a high-voltage ring network electrical cabinet.

In the attached figure, 1-side plate, 2-bottom plate, 3-top plate, 4-upright post, 5-display screen, 6-control panel assembly, 7-control panel, 8-line grounding facility, 9-DFC isolating cotton, 10-BBS anti-condensation air-tight blocking material, 11-wiring terminal, 12-rust-proof film box, 13-intelligent constant humidity sheet, 14-fuse, 15-current transformer and 16-bracket.

Detailed Description

Embodiment 1 group screen type three-remote station terminal electrical cabinet

The electrical cabinet structure of the group screen type three-remote station terminal of the embodiment is as shown in fig. 1, the group screen type three-remote station terminal is in a vertical cuboid box shape, the cabinet structure comprises a front door, a rear door, side plates 1, a bottom plate 2 and a top plate 3, stand columns 4 and angle steel are arranged in the cabinet body, multilayer laminate plates are fixed at different heights on the stand columns, display screens 5, control panel assemblies 6, control opening panels 7 and a power supply are arranged on the different laminate plates respectively, and a circuit grounding facility 8 is arranged on the bottom plate.

The inside of cabinet body roof 3 sets up waterproof rust portion that hinders, and DFC separates the cotton 9 of dew promptly, and DFC separates the cotton 9 tiling of dew at the lower surface of roof 3, and the moisture that the roof got into is followed in the separation to in time absorb the condensation that the roof produced. The sealed stifled group material 10 of BBS anti-condensation dew gas is used to cabinet body bottom plate 2's upper surface, constitutes the gas phase and hinders the rust part, specifically is the BBS castables, and self-leveling forms the airtight stifled layer of one deck on bottom plate 2, prevents that a large amount of moisture from getting into cabinet body inside from bottom plate 2, and airtight shutoff layer on bottom plate 2 can be by oneself along the route ground facility 8 border levelling along the line to sealed line ground facility 8's periphery prevents the moisture infiltration.

The control panel assembly 6 of the internal portion of cabinet and the circuit of controlling panel 7 all draw forth from the panel both sides, through binding post 11 connection power or circuit ground facility 8 on stand 4 or the angle steel, scribble strippable PSC terminal sealed glue on every binding post 11, prevent binding post corrosion, form closed rust portion that hinders.

The two side plates 1 at the lower part of the cabinet body are respectively provided with a rust-resistant film box 12 and an intelligent constant humidity sheet 13, and the rust-resistant film box 12 and the intelligent constant humidity sheet 13 are arranged on the side plates 1 between the upright posts. Because the display screen 5, the control panel assembly 6 and the control panel 7 are provided with small fans for continuously dissipating heat and dissipating moisture, the electrical cabinet of the embodiment also focuses on preventing and controlling moisture invading from the lower part and the bottom of the cabinet body, and therefore, the rust-resisting capsule box 12 and the intelligent constant humidity sheet 13 are arranged on the side plate below the control panel assembly 6 to regulate and control the humidity of the middle lower part of the cabinet body.

The BBS anti-condensation air-tight blocking component 10 of the present embodiment is prepared from the following raw materials: the component A comprises 100 parts of liquid modified polyether polyol, 0.5 part of deionized water, 35 parts of physical foaming agent monofluorodichloroethane, 1 part of triethylamine as a catalyst, 2 parts of dibutyltin dilaurate and 3 parts of chain extender triethanolamine; the component B comprises 60 parts of polyisocyanate

N100, 40 parts of toluene diisocyanate. The preparation method of the liquid modified polyether polyol comprises the following steps: dissolving 50 parts of polyether polyol BASF Pluracol975 in 40 parts of deionized water, adding 0.3 part of catalyst triethylamine, and stirring until the mixture is uniform; heating the obtained mixture system to 100 ℃, dropwise adding 10 parts of 4-fluoro catechol glycidyl ether under the condition of constant temperature stirring, and reacting for 1.5 h; and extracting by using 40 parts of chloroform, and removing the organic solvent chloroform by rotary evaporation to obtain the liquid modified polyether polyol. The preparation method of the 4-fluoro catechol glycidyl ether comprises the following steps: dissolving 10 parts of 4-fluoro catechol in 50 parts of acetone, stirring until the 4-fluoro catechol is completely dissolved, adding 30 parts of epoxy chloropropane, and continuously stirring until the epoxy chloropropane is completely dissolved; heating the obtained mixture to 80 ℃, dropwise adding 22 parts of 25 wt% NaOH solution under stirring, continuing constant temperature reaction for 1.5h after dropwise adding, filtering, washing and precipitating at 80 ℃, and drying to obtain the catalyst.

The DFC exposure isolating cotton 9 of the embodiment comprises an elastic glass fiber grid plate, water absorbing cotton and water storing cotton, wherein the two sides of the elastic glass fiber grid plate are respectively bonded with one layer of water storing cotton, and the outer sides of the two sides of the water storing cotton are respectively bonded with one layer of water absorbing cotton. The water absorption cotton has hydrophilicity, water vapor is absorbed into the water absorption cotton, condensation is avoided, and the water absorption cotton is formed by coating hydrophilic materials on the water storage cotton. The water storage cotton stores the water vapor absorbed by the absorbent cotton inside, so that condensation and dripping are avoided when the water vapor is too much in rainy days, and the water storage cotton is made of super absorbent resin. The elastic glass fiber grid plate is formed by compositely weaving resin and glass fiber.

The intelligent constant humidity sheet of this example was a dyrkeeper pdf3461KB moisture absorption sheet from guhe electrical power equipment corporation.

The rust-resistant membrane box comprises a gas-phase rust inhibitor, a gas-phase rust-resistant membrane and a membrane box body, wherein the gas-phase rust-resistant membrane is arranged in the membrane box body, the gas-phase rust inhibitor is placed in the gas-phase rust-resistant membrane, the membrane box body is a cuboid with the length of 4 × 4 and 4 × 3cm, 7g of the gas-phase rust inhibitor is added into the membrane box body, and the area of the gas-phase rust-resistant membrane is 10cm². The substrate layer of the gas phase rust-resisting diaphragm is made of polyvinylidene fluoride-coated non-woven fabric, the pore diameter of the microporous structure of the waterproof gas-resisting layer is 0.13 mu m, the porosity is 63.4%, the thickness of the gas phase rust-resisting diaphragm is 250 mu m, and the non-woven fabric is made of staple fibers. The gas phase rust inhibitor consists of 60 parts of rust inhibiting components, 15 parts of polyvinyl alcohol and 20 parts of solvent. Wherein the rust inhibitor comprises glutamic acid, triethanolamine, tert-butyl aminoacetate and sodium benzoate; the solvent is a mixed solvent of ethanol and water.

The PSC terminal sealant of the present embodiment comprises an A component and a B component. The component A comprises 42 parts of vinyl silicone oil, 3 parts of MQ200 vinyl silicon resin, 3 parts of pentadecafluorononyl triethoxysilane, 2 parts of modified resin A12, 4 parts of white carbon black, 4 parts of aluminum hydroxide, 0.5 part of platinum catalyst and 0.5 part of ethynyl cyclohexanol; the component B comprises 10 parts of hydrogen-containing silicone oil, 2 parts of hydrogen-containing silicone resin, 3 parts of pentadecafluorononyl triethoxysilane, 2 parts of modified resin A12, 5 parts of superfine heavy calcium powder, 4 parts of aluminum hydroxide, 0.5 part of platinum catalyst and 0.5 part of ethynyl cyclohexanol.

The preparation method of the modified resin A12 comprises the following steps: 12.2g of organic silicon monomer A-174, 22g of deionized water, 13g of isopropanol, 3.5gOP-10 (alkylphenol polyoxyethylene ether-10), 3.7g of sodium dodecyl sulfate and 0.5g of potassium persulfate are added into a reactor, stirred, and a mixed solution of 13.4g of perfluoro dodecyl ethyl methacrylate dissolved in 50ml of toluene is slowly dripped in the reactor, the dripping is completed within 1 hour, and the mixture reacts at 90 ℃ for 6 hours to obtain viscous liquid, namely the organic silicon modified fluorine-containing acrylate copolymer (modified resin A12), wherein the weight average molecular weight is 6500 and the viscosity is 1100mPa.

Embodiment 2 high-voltage ring network electrical cabinet

The high-voltage ring network electrical cabinet structure of this embodiment is as shown in fig. 2, and the high-voltage ring network electrical cabinet is vertical cuboid box-type shape, and the cabinet body structure includes qianmen, back door, curb plate 1, bottom plate 2 and roof 3, and the internal portion of cabinet is equipped with load switch, fuse 14, current transformer 15 and support 16.

The inside of cabinet body roof 3 sets up DFC and separates to reveal cotton 9, and DFC separates to reveal cotton 9 tiling at the lower surface of roof 3, and the moisture of roof entering is followed in the separation to in time absorb the condensation that the roof produced. The upper surface of cabinet body bottom plate 2 uses the pouring material form of BBS anti-condensation air seal block group material 10, forms one deck air seal block layer on bottom plate 2, prevents that a large amount of moisture from getting into cabinet body inside from the bottom plate.

Every binding post 11 of the internal portion of cabinet coats the sealed glue of strippable PSC terminal, prevents the corrosion of binding post, prevents that line short circuit and personnel from electrocuteeing simultaneously.

The left side plate at the lower part of the cabinet body is provided with a rust-resistant film box 12, the right side plate is provided with an intelligent constant humidity sheet 13, and the humidity of the middle lower part of the cabinet body is regulated and controlled. Since the lower space of the cabinet is large and moisture is easy to gather, the electrical cabinet of the embodiment also focuses on preventing and controlling moisture invading from the lower part and the bottom of the cabinet.

The anti-condensation air-tight blocking material, the DFC dew-isolating cotton, the intelligent constant humidity sheet, the rust-resisting film box and the PSC terminal sealant of the embodiment are the same as those of the embodiment 1.

Claims

1. The passive moisture-proof and rust-resistant electrical cabinet is characterized by comprising a gas phase rust-resistant part, a waterproof rust-resistant part, a closed rust-resistant part and an intelligent humidity-measuring rust-resistant part, wherein the gas phase rust-resistant part comprises a condensation-proof gas sealing and blocking material arranged at the bottom in the electrical cabinet and a rust-resistant film box arranged on the inner side wall of the electrical cabinet, so that external moisture is prevented from flowing in; the waterproof and rust-resistant part comprises dew-proof cotton arranged at the top in the electrical cabinet to prevent the top of the cabinet from dripping; the closed type rust resisting part comprises peelable sealant wrapped on the surface of an exposed wire end or a terminal, so that the small-sized fixed electric appliance device is prevented from being rusted; the intelligent humidity measuring and rust resisting part comprises an intelligent constant humidity sheet arranged on the inner wall of the electrical cabinet, and the humidity in the electrical cabinet is monitored in real time by utilizing the humidity absorption and humidity elimination performance of the intelligent constant humidity sheet.

2. The electrical cabinet according to claim 1, wherein the dew condensation preventing gas sealing and blocking compound is in a form selected from a precast slab or a castable material.

3. The electrical cabinet of claim 2, wherein the anti-condensation gas seal block is in the form of a pre-fabricated plate when the bottom of the electrical cabinet is a monolithic plate.

4. The electrical cabinet according to claim 2, wherein when a hole is formed in the bottom of the electrical cabinet, the anti-condensation gas sealing and blocking component is in a combination form of a precast slab and a castable material, or in a form of a castable material.

5. The electrical cabinet according to claim 1, wherein the exposure isolating cotton is of a multi-layer structure and comprises an elastic glass fiber grid plate, water absorbing cotton and water storing cotton, wherein two sides of the elastic glass fiber grid plate are respectively bonded with one layer of water storing cotton, and the outer sides of the two layers of water storing cotton are respectively bonded with one layer of water absorbing cotton.

6. The electrical cabinet according to claim 1, wherein the rust resistant capsule comprises a capsule body, a vapor phase rust inhibitor, and a vapor phase rust resistant membrane, wherein the vapor phase rust resistant membrane is disposed inside the capsule body, and the vapor phase rust inhibitor is disposed inside the vapor phase rust resistant membrane.

7. The electrical cabinet according to claim 6, wherein the gas phase barrier membrane comprises a substrate layer and a waterproof gas barrier layer, the substrate layer is a non-woven fabric coated with polyvinylidene fluoride, and the waterproof gas barrier layer is a non-woven fabric with a microporous structure.

8. The electrical cabinet of claim 1, wherein the smart humidistat strip is disposed on a sidewall of the electrical cabinet and is capable of absorbing and releasing moisture from the air.