For dry-type transformers having a 220 [degrees] C insulating system and a winding hot-spot temperature of 220 [degrees] C, and with no unusual operating conditions present, the 20-yr life expectancy is a reasonable time frame.he 80 [degrees] C transformer requires operation at 75% or more of full load for a 2-yr payback, and at 100% load to payback in 1 yr over the 150 [degrees] C transformer.
Exposure to arsenic through drinking water is a great threat to human health. Arsenic is a carcinogen and its consumption can negatively affect the gastrointestinal tract and cardiac, vascular and central nervous systems.
1 Gastrointestinal symptoms. 2  In the latter arsenic poisoning symptoms, you may experience symptoms similar to cholera. 3  Vomiting and diarrhea are very common in this stage of symptoms. 4  Your vomit may be bloody, as well as the diarrhea. 5  Dehydration and shock are common from prolonged exposure to arsenic. 6  Cardiac. Vomiting and diarrhea are very common in this stage of symptoms. 2  Your vomit may be bloody, as well as the diarrhea. 3  Dehydration and shock are common from prolonged exposure to arsenic. 4  Cardiac. 5  Cardiac arrhythmias are very common late stage arsenic poisoning symptoms. 6  At this stage in symptoms, your body is failing.