Electrical equipment has a wide range of applications. If the relative humidity reaches 80%, electrical equipment will have various side effects, affecting the normal use of electrical equipment and playing a good auxiliary role in industrial production. However, moisture is one of the important factors causing damage to electrical equipment, so moisture prevention of electrical equipment is a very important task. Polymer moisture-proof sealing agents are particularly important. Let's learn about the effectiveness of polymer moisture-proof sealing agents.
     After electrical equipment becomes damp, the first manifestation is a decrease in insulation performance and accelerated insulation aging. According to existing dielectric theory, an increase in environmental humidity will correspondingly increase the conductivity, relative dielectric constant, and tangent of dielectric loss angle of the medium, reducing the breakdown field strength. It is worth noting that the process of dielectric breakdown often becomes brittle due to heat, and once subjected to vibration and rupture, or moisture enters cracks, even at lower voltages, discharge will occur, leading to dielectric breakdown. Secondly, exposed metal conductors generally undergo oxidation corrosion with increasing humidity, especially when dust is attached. The contact resistance at the conductor connection increases, leading to local overheating. Therefore, electrical equipment that has been in a humid environment for a long time, if moisture-proof measures are not taken, its lifespan will be significantly reduced, causing leakage and short circuits, leading to serious electrical faults and accidents.
     Moisture proof and sealing measures in the power industry:
     Polymer moisture-proof sealing agent applies polymer mixing technology, which can withstand natural temperature freeze-thaw cycles and various harsh environments, and has the characteristics of no deformation, no deterioration, and no rupture; Adopting a highly active chemical formula to form sufficient sealing in the bottom gap of electrical equipment; It is an excellent solution for the safe operation and moisture-proof locking of electrical equipment in the power grid, which can be in close contact with various metal materials and cable sheath materials without adverse chemical reactions.
     Polymer moisture-proof sealing agent is a new type of environmentally friendly moisture-proof sealing agent specifically used for outdoor ring network panels, box transformers, cable branch boxes, distribution network panels, and outdoor junction boxes, mechanism operation boxes, electric scissor valve boxes, high and low voltage switchgear, and manifold unit boxes in distribution networks. It provides a solid protective wall for production and operation equipment, achieving low viscosity, good fluidity, and easy penetration to achieve enclosed moisture-proof inside the box, Prevent moist air from entering the cable interlayer and channel inside the box.
     Advantages of using polymer moisture-proof sealing agents:
     High safety: waterproof, moisture-proof, dustproof, anti small animal invasion, fireproof and flame-retardant
     Simple operation: simple construction, single person operation, no need for assistance (electricity, fire, water, etc.)
     Good flowability: Fully flow on the sealing surface before curing, automatically leveling
     Withstand various harsh environments: corrosion-resistant, able to withstand various harsh environments
     Close contact: In close contact with the cable sheath and surrounding building structure, without corrosion reaction
     Sturdy structure: A sturdy molecular closed cell matrix structure that has toughness after molding, is lightweight, and does not break or fall off
     Continuous efficacy: It can be used for cantilever floor slabs or directly for bottom plates, making it an ideal choice for electrical equipment safety protection. After solidification, it does not deform, deteriorate, break, and has a service life of 10 years. Construction is convenient: secondary opening is simple and convenient.