How to correctly prevent explosion-proof distribution cabinets from losing explosion-proof performance? How to prevent explosion-proof distribution cabinets from losing explosion-proof performance?

Explosion-proof distribution cabinets are widely used in flammable and explosive places such as coal mining, crude oil, chemical plants, gas stations, metallurgy, natural gas, pharmaceuticals, knitting mills, and food factories. In such sites, production processes easily generate combustible gas mixtures or dust. When combustible gases encounter ordinary lighting fixtures, explosions and fires can easily occur, seriously endangering worker safety. Therefore, these sites require lighting fixtures and some electrical appliances to use explosion-proof distribution cabinets/boxes and explosion-proof electrical appliances. If Explosion-proof Power Distribution CabinetinnormalStartNext，OutputOn-siteAbnormalCausingMake丧lossexplosion-prooffunctionEnergy-saving，ItsriskLevelStandardExcellent And Easy见，Explosion-proof Power Distribution CabinetnormalStartForrisklocationsafetyProductionIndustryOperatingownAreavery AccidentMeaning，恰QuitepreventionExplosion-proof Power Distribution CabinetLoss of Explosion-proof PerformanceEngraveInvincibleAsSlow

How to prevent the loss of explosion-proof performance in explosion-proof distribution cabinets??

1. Selection of explosion-proof distribution cabinets: They must be purchased from reputable manufacturers to ensure their quality is definitely up to standard and compliant with national explosion-proof regulations.。

2. Application of explosion-proof distribution cabinets: They must be used in accordance with requirements to ensure standardized operation.。

3. Avoid unqualified operation of explosion-proof distribution cabinets/boxes: Some employees have lower behavioral standards and weak safety awareness, with long-standing issues of operational errors or violations of regulations. Combined with the risk of flammable and explosive materials at the production site, even the best-performing explosion-proof distribution cabinets/boxes may suffer loss of explosion-proof performance.。Therefore, it is essential to strengthen safety training and improve workers' safety construction standards.。

4. Explosion-proof distribution cabinets/boxes should be regularly inspected and maintained during use. Operation must comply with explosion-proof requirements. Any operation that does not meet the conditions may cause the entire system to lose its explosion-proof characteristics.。

5. Ensure safe power supply: The voltage, current, ambient temperature, and other data during the use of explosion-proof distribution cabinets/boxes must not exceed the rated specified values.。Special attention should be paid to heating conditions at line connection points or incoming/outgoing line junctions. In environments with air or vapor explosive mixtures, the surface temperature and temperature of explosion-proof distribution cabinets/boxes must meet the specified requirements.。

6. Strengthen daily management and maintenance: Regularly inspect equipment and distribution lines, establish ledgers and logs, and continuously improve explosion-proof management measures.。

7、PurchaseIntrinsically Safe TypeElectricApplianceequipment

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2. The electrode connection wires inside explosion-proof distribution cabinets should use insulated conductors, with connections that do not loosen and no exposed live parts; the working neutral wire in distribution cabinets and boxes should be connected through terminal blocks, separately arranged from the protective neutral wire terminal blocks; the metal enclosure, metal electrical mounting plates, and electrical equipment inside the box that have conductive metal bases or housings must be protected by neutral grounding, and the protective neutral wire should be connected through terminal blocks.。

3. Explosion-proof distribution cabinets and distribution boxes should be installed in well-ventilated, dry, and normal-temperature locations.。It is prohibited to install them in places severely affected by harmful media such as coal gas, dust, steam, liquids, and other hazardous substances, and they must not be installed in areas subject to impact, vibration, liquid splashing, or heat source baking; there should be sufficient space and passage for two people to work simultaneously around the power box and distribution box, and no items obstructing operation or maintenance should be stacked, nor should there be weeds or shrubs.

4. Explosion-proof distribution cabinets should be made of stainless steel plates, aluminum enclosures, stainless steel, or good insulating materials. The thickness of aluminum plates must meet the national standard of 4mm; the electrical equipment inside the cabinet should first be installed on metal or non-wood insulating electrical mounting plates, then the entire assembly should be secured inside the cabinet body; the metal and the cabinet enclosure must be electrically connected and grounded.。

5. Explosion-proof power cabinets and explosion-proof lighting boxes should preferably be set up separately. If combined in the same distribution cabinet, the power and lighting wiring should be installed separately.。

6. The power supply and distribution system at construction sites implements classified distribution equipment, requiring a main distribution box (or distribution room), with sub-distribution boxes set below the main distribution box, and distribution boxes set below the sub-distribution boxes, with electrical equipment below the distribution boxes.

7. The distribution cabinet and distribution box should be installed firmly and upright; mobile distribution cabinets and boxes should be placed on sturdy frames, with the rear bottom edge of mobile distribution cabinets and boxes at a safe distance from the ground of not less than 1.3m and not more than 1.5m; the bottom surface of mobile distribution boxes and distribution boxes should have a safe distance from the ground of more than 0.6m and less than 1.5m; each distribution cabinet and distribution box should be waterproof, rainproof, and dustproof.8. The main distribution cabinet should be installed near the power source area; the distribution cabinet should be placed in areas where electrical equipment or loads are concentrated; the distance between the distribution cabinet and the main distribution cabinet should not exceed 30m. The distribution cabinet should be powered by the final-stage distribution cabinet, and the vertical distance between the distribution cabinet and the mobile electrical equipment it controls should not exceed 3m.

9. General customer requirements for the appearance of explosion-proof distribution cabinets may primarily concern color and surface uniformity. In fact, these requirements are also the standards that our distribution cabinet manufacturer sets for our own products. The surface color of the distribution cabinets will be applied through electrostatic powder spraying according to the customer's specific needs.。

The coating should adhere firmly, have uniform color tone, and be free from safety hazards such as wrinkles, peeling, color spots, and missed spraying. When observed from a distance of 1 km, there should be no obvious color difference or reflection. The surface should be smooth, clean, and free from damage such as dents and scratches.。Other coated components commonly used in the cabinet must also be free from safety hazards such as peeling, color spots, sand holes, and corrosion. The appearance quality must meet the same requirements as above.。The interior of the distribution cabinet should be clean. Apart from materials and accessories provided for users, as well as components compliant with relevant national standards, there should be no debris, dust, or other contaminants inside the cabinet.。

11. Appearance requirements and mechanical specifications for the distribution cabinet from the explosion-proof distribution cabinet manufacturer.。The stainless steel thickness used for the distribution cabinet enclosure should not be less than 1.5mm, and the distribution box body should be made of cold-rolled steel plate with a thickness of not less than 2.0mm. The thickness of the steel plate cabinet door and steel plate panel should not be less than 2.0mm, and the side plate thickness should not be less than 3.0mm. The slide rails must be firm, and the structure of the distribution box should be detailed and sturdy. At the same time, two load-bearing ears should be welded at the lower left and upper right of the back of the general vertical distribution cabinet, using 40X4 galvanized flat steel with a length of 10cm.

12. A series of problems occurring in the later stage of explosion-proof distribution cabinets are closely related to the electronic components placed inside the cabinet and the setup of the cabinet. To address these later-stage issues, we should make relevant preparatory work as early as possible.

13、Distribution CabinetInside的Electronicsdevice早alreadyAssembleIndustryEntire，ArrangeWithProcedure， But Also Distribution CabinetDomesticnonAreaGray、StoreLevel And DirtyMineral， But Also If IsFloor-standingInstallationDistribution Cabinet，weSelf己的BottomsideShouldQuiteHigher thanLineAspects50-100mm，Operate纵RodcoreRelatedForHighDegree Generally For1.2——1.5m;Distribution Cabinet(Cabinet)TrulyFrontAspect0.8——1.2m的rangePositionDomesticnonHinder碍Mineral。no bare live wires should be exposed outside the distribution cabinet. Electrical components that must be installed on the surface of the distribution cabinet or on the distribution panel must have reliable shielding protection.。14. In the event of common faults or abnormal operation, rely on maintenance of household appliances to disconnect the power circuit or report an alarm. With detection instruments, various parameters in use can be displayed, and some electrical equipment parameters can be adjusted, providing reminders or signals for deviations from normal operation. Mainly used in power generation stations, distribution stations, and substations. Once our own distribution cabinet experiences an operational obstruction, we must take corresponding measures as soon as possible to ensure that electronic components are not subjected to corresponding losses.