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.
Mix saw no reason why the ship couldn't be named for Arizona, the newest state in the union. He found many other leaders who agreed and, once organized, they started lobbying the Navy and members of Congress to name Battleship 39 the USS Arizona. Daniels, the Navy secretary, surprised everyone when he agreed.