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.
Trivalent arsenic poisoning manifests with the following signs and symptoms: Acute exposure: Cholera-like gastrointestinal (GI) symptoms of vomiting (often bloody) and severe diarrhea (may be rice-watery, often bloody); these patients will experience acute distress, dehydration (often), and hypovolemic shock.linical effects of arsenic toxicity depend on the chronicity (eg, acute, chronic) and type of poisoning (eg, arsenic, trivalent arsenic, arsine gas). Frequently, patients exposed to arsenic have a garlic smell to their breath and tissue fluids.