Residual Current Breaker with Overload protection (RCBO) A RCBOs combines the functions of a MCB and a RCD in one unit. They are used to protect a particular circuit, instead of having a single RCD for the whole building. Generally these are used more often in commercial building than domestic ones.
The USS ARIZONA as a historic artifact derives much of its significance in relation to the attack on Pearl Harbor and in turn on the outbreak of war. The order of thematic emphasis ensues from the nature of a memorial and the necessity of placing primary emphasis on interpretation of resources at hand.
USS ARIZONA MEMORIAL - PEARL HARBOR, HI. Park Information. The USS Arizona Memorial is built over the sunken wreckage of the USS Arizona, the final resting place for many of the 1,177 crewmen killed on December 7, 1941 when Japanese Naval Forces bombed Pearl Harbor. The memorial is part of World War II Valor in the Pacific National Monument.