Ensuring the effectiveness of low-voltage electrical insulation cleaning agents in extreme temperature environments requires a comprehensive approach encompassing three aspects: optimizing the agent's performance, adapting the application process, and implementing appropriate protective measures. This ensures the agent can efficiently and safely complete cleaning tasks in both high- and low-temperature environments.
In extreme high-temperature environments, low-voltage electrical insulation cleaning agents must possess excellent temperature resistance and thermal stability. The solvent components in the cleaning agent must be selected for their high boiling point and low volatility to prevent rapid vaporization at high temperatures, which could lead to decreased cleaning effectiveness or safety hazards. For example, some cleaning agents use synthetic hydrocarbons or silicon-based solvents with boiling points exceeding 200°C, maintaining a liquid state even in high-temperature environments and continuously dissolving oil and impurities. Simultaneously, the cleaning agent formulation must include antioxidants and heat stabilizers to prevent accelerated chemical decomposition at high temperatures, ensuring the cleaning agent maintains its original performance even after prolonged exposure to high temperatures. Furthermore, at high temperatures, the viscosity of cleaning agents decreases and their fluidity increases, potentially leading to insufficient residence time on equipment surfaces. Therefore, it's necessary to adjust the solvent ratio or add thickeners to ensure the cleaning agent adheres to the equipment surface at high temperatures, fully penetrating and dissolving dirt.
In extreme low-temperature environments, low-voltage electrical insulation cleaning agents need to address the issues of low-temperature solidification and decreased fluidity. If the cleaning agent solidifies or has excessively high viscosity at low temperatures, it will not be effectively sprayed or penetrate into the equipment, resulting in incomplete cleaning. Therefore, cleaning agents should use low-freezing-point solvents, such as isoalkanes or chlorofluorocarbon substitutes, with freezing points as low as -50°C, ensuring they remain liquid in extremely cold environments. Simultaneously, pour point depressants or flow improvers can be added to further reduce viscosity at low temperatures and improve fluidity. For example, some cleaning agents, by adding polymeric pour point depressants, maintain good spraying performance even at -30°C, ensuring the cleaning agent evenly covers the equipment surface and thoroughly removes dirt. Furthermore, the volatility of cleaning agents decreases significantly at low temperatures, potentially leading to residual liquid affecting equipment operation. Therefore, solvents with moderate volatility should be selected, or the equipment surface can be heated to accelerate cleaning agent evaporation and avoid residue.
In extreme temperature environments, the application process of low-voltage electrical insulation cleaning agents also requires targeted adjustments. At high temperatures, the cleaning time after spraying the cleaning agent needs to be controlled to avoid prolonged exposure that could cause excessive solvent evaporation or equipment overheating. For example, a segmented cleaning method can be used: first spray the cleaning agent to dissolve the dirt, then wipe with high-pressure gas or a dry cloth to reduce the residence time of the cleaning agent on the high-temperature equipment surface. At low temperatures, the equipment and cleaning agent need to be preheated before cleaning to improve the fluidity and penetration of the cleaning agent. For example, the cleaning agent can be stored in a warm environment and its temperature increased using a heating device before use, or the equipment surface can be preheated with warm water to allow the cleaning agent to dissolve dirt more quickly.
Providing appropriate protective measures is also crucial to ensuring the effectiveness of low-voltage electrical insulation cleaning agents in extreme temperature environments. In high-temperature environments, enhanced ventilation and cooling are necessary to prevent the accumulation of cleaning agent volatiles in enclosed spaces, which could pose safety hazards. Simultaneously, operators must wear protective gloves and goggles to prevent burns from hot equipment or cleaning agent splashes. In low-temperature environments, adequate cold-weather protection measures are essential to prevent operator slowdowns or equipment freezing. For example, when working outdoors in low temperatures, insulated covers can be used to wrap equipment to reduce heat loss, and operators should be provided with cold-weather clothing and heating tools to ensure smooth cleaning operations. Ensuring the effectiveness of low-voltage electrical insulation cleaning agents in extreme temperature environments requires a coordinated approach involving cleaning agent performance optimization, process adjustments, and supporting protective measures. By selecting solvents with excellent temperature resistance, adjusting the formulation, optimizing the spraying process, and strengthening environmental control, it can be ensured that the cleaning agent can still efficiently and safely complete cleaning tasks in high- or low-temperature scenarios, providing reliable protection for the stable operation of low-voltage electrical equipment.
