Heavy rains are causing havoc in many residential areas. Many areas are inundated with water and are experiencing stagnation. What to do if the same happens in industrial plants. Recently, government issued guidelines for safe restart after long shutdown due to declaration of lock down to contain spread of covid. A similar procedure needs to be followed in this scenario also. Though there were no reports of any accidents due to flooding of industrial areas, one should not ignore the lessons.
All submerged equipment and associated piping, instruments, access areas, etc have to be cleaned and checked for meeting functional requirement. Similarly power supply systems have to be checked for its integrity to avoid short circuit or arc flash hazards.
Only after checking everything, more than as we do for a new plant, and satisfying ourselves, energization and connecting loads to be done gradually. It is always better to go slow instead of hurrying so that there will not be setbacks later. Whatever we do at home in such scenario, same concepts can be followed.