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How to ensure safe operation of the shell of the color steel plate box type substation
source：tools.bjxpel.cn | Release time：2025年04月28日1. Good structural design
Robust and durable: high strength color steel plate is used, which has sufficient strength and rigidity, and can withstand certain external impact and the impact of natural environment, such as strong wind, rainstorm, snowstorm and other severe weather, to prevent the shell deformation or damage from affecting the normal operation of internal equipment.
Reasonable layout: Based on the size and installation requirements of the internal equipment in the substation, a reasonable spatial layout is carried out to ensure stable equipment installation, neat wiring, easy operation and maintenance, and to avoid safety accidents caused by poor heat dissipation or operational errors due to limited space.
2. Reliable electrical insulation
Application of insulation materials: use materials with good insulation performance in the inner layer or interlayer of color steel plate, such as polystyrene foam board, polyurethane foam board, etc. These materials not only have the function of heat insulation, but also can effectively isolate the external electric field, prevent the current from being transmitted to the shell when the electrical equipment is leaking, and avoid electric shock accidents.
Grounding system: Set up a complete grounding device to reliably ground the shell of the color steel plate box type substation. The grounding resistance should comply with relevant standards and generally not exceed 4 ohms. When there is a leakage situation in the casing, the current can quickly flow into the ground through the grounding system, thereby ensuring the safety of personnel and equipment.
3. Effective fire prevention measures
Flame retardant material: Choose color steel plates with flame retardant properties, usually with a flame retardant rating of B1 or higher, which can effectively prevent the spread of fire and reduce the degree of danger in the event of a fire. Even in high temperature environments, it can maintain a certain degree of stability, without producing toxic and harmful gases, and buy time for personnel evacuation and firefighting rescue.
Fire separation: Within the box type substation, fire separation is carried out for different functional areas, such as separating transformer rooms, high and low voltage distribution rooms, etc. with firewalls or fire doors to prevent the spread and expansion of fires within the station and limit the scope of fire impact.
4. Good ventilation and heat dissipation
Ventilation design: Reasonable ventilation openings are installed on the outer shell of the color steel plate box type substation, usually located at the top and sides of the box. The size and quantity of ventilation openings are calculated and designed based on the heat generation and heat dissipation requirements of the equipment in the station, to ensure natural air circulation or forced circulation through fans, effectively removing the heat generated during equipment operation, preventing equipment damage due to overheating, and reducing safety risks.
Thermal insulation treatment: In addition to ventilation and heat dissipation, the color steel plate shell is also insulated to reduce the transfer of external heat into the box. For example, coating insulation coatings on the surface of color steel plates or adding insulation materials in the interlayer can reduce the internal temperature of the box and improve the stability and reliability of equipment operation.
5. Comprehensive protective coating
Anti corrosion and rust prevention: The surface of the color steel plate is coated with anti-corrosion and rust prevention coatings, such as polyester coatings, fluorocarbon coatings, etc. These coatings can effectively isolate air, moisture, and corrosive substances, prevent rusting and corrosion of the color steel plate, extend the service life of the shell, and ensure that it maintains good protective performance during long-term operation.
Weather resistance: The protective coating has good weather resistance and can adapt to different climatic conditions, such as ultraviolet radiation, high and low temperature changes, acid rain, etc. It is not easy to fade, peel off or age, maintains the appearance and performance stability of the shell, and ensures the safe operation of the substation.
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