Quick Answer. A lightning arrester protects telecommunication and electrical power systems from damage during a lightning strike. It accomplishes this by redirecting the current in the lightning to the ground.
Bloating, burping and passing gas are natural and are usually caused by swallowed air or the breakdown of food through digestion.
Belching is one of the ways in which a person forces excess air and gasses from his intestinal tract. While occasional belching is not seen as anything harmful, excessive burping may be the sign of stomach problems that could require treatment. Assessing your eating style and overall health can help you determine the cause of your frequent burping.