Circuits are grounded for the. purpose of limiting the voltage upon the circuit which might. otherwise occur through exposure to lightning or other voltages. higher than that for which the circuit is designed; or to limit. the maximum potential to ground due to normal voltage. (b) Exposed Enclosures.
More important, there are differences in the underlying cause of these two types of heart attack and, therefore, in the initial treatment. A STEMI heart attack is caused when a blood clot suddenly forms, completely blocking an artery in the heart. This can result in damage that covers a large area of the heart and extends deep into the heart muscle.
UTI Causes and Risk Factors. UTIs begin when bacteria enter the urinary tract. These germs usually get in through the urethra. Most UTIs are caused by E. coli and other bacteria that are normally found in the digestive tract. Sexually transmitted infections â including herpes, gonorrhea, chlamydia, and mycoplasma â can also cause UTIs. The following risk factors increase your chance of getting a UTI: Having a shorter urethra.