Currently, concrete box shells play a crucial role in China's power supply system, closely intertwined with our daily lives. Whether in residential complexes, bustling city centers, or industrial areas, their presence is evident. As they house a variety of electrical equipment within a relatively sealed large casing, exposed to the elements over time, maintenance becomes a significant challenge.
Inspections of the transformer box's outer shell are generally categorized into three types: post-failure, scheduled, and condition-based. Post-failure inspections occur when the transformer box experiences common faults and can no longer operate normally. Scheduled inspections are conducted according to pre-determined time frequencies to prevent accidents, detect deficiencies early, and ensure the stability of the power supply and distribution system. Condition-based inspections involve analyzing the health status of the substation and assigning staff for maintenance. These inspections combine modern methods, utilizing online or offline monitoring equipment for dynamic tracking. Automation directly tracks data and analyzes conditions in real-time, with the monitoring system recording continuously.
Cement boxes transformed into shells offer the combination of lightweight, high strength, and excellent wear resistance, boasting a lifespan of up to 50 years. They feature sturdy side walls and tops, requiring no maintenance. Common issues include damage to the door panels, shell, and top shell blocks, as well as falling off.
Frequently Asked Questions:
The epoxy flooring for housing should be chosen at a higher elevation, not placed in low-lying areas to prevent rainfall from entering the box and damaging the operation. When pouring the concrete service platform, leave gaps to facilitate the laying of cable entries and exits.
2. The housing and grounding grid must have multiple reliable connections. The transformer grounding device and neutral grounding can share the same grounding grid. The grounding grid is typically established with grounding stakes at the basic four corners, which are then connected as a whole.
3. No traffic violations or乱堆杂物 around the van-type machinery equipment. Ensure natural ventilation and operation inspections for electrical equipment. The transformer box primarily cools with a blowing circulation system, and the transformer channel door must not be blocked.
Overall, the concrete box shell boasts strong impact resistance and reliability; excellent resistance to UV radiation, radiation protection, and heat insulation; and features anti-corrosion, fire-retardant, cold-resistant, anti-rust, and moisture-proof effects. It has long-lasting wear resistance. Its practical value, as determined by its physical properties, far surpasses that of other material-based box shells. Its anti-corrosion, heat insulation, noise reduction, radiation protection, and condensation prevention capabilities are unmatched by aluminum panel metals.
