Adults need to have inguinal hernia repair surgery in the following situations. 1  Hernias that contain a loop of intestine without blood supply (strangulated hernias) require emergency surgery. Hernias that contain a loop of intestine without blood supply (strangulated hernias) require emergency surgery. 2  Hernias that contain a trapped loop of intestine (incarcerated hernias) need to be repaired as soon as possible to avoid strangulation.
These are known as KVI (Known Value Items). These are sold in two ways. Normal KVIs virtualy have a price fixing agreement (which is illegal and known as a cartel). In effect everyone fixes their price to the market price so there is no advantage in going to a cheap shop for them.
KVA is a unit of power. From ohms law it can be shown that in any circuit, the power of any element in the circuit is the product of the voltage and current (V x I) . Hence KVA is 1 Kilovolt times an Ampere and hence 1000 volts times an ampere. A unit of apparent power, equal to 1,000 volt-amperes; the mathematical product of the volts and amperes in an electrical circuit. A term used to describe the product of currend and voltage, expressed in kilovolt ampereres (KVA). KVA is the unit of transformer rating.