ELECTRICITY DISTRIBUTION BOX OF CEILING FOR BUILDING

摘要

PURPOSE: An electric distribution box which is installed at the ceiling of an apartment house is provided to easily perform repair and change operation by improving the structure of the distribution box and to improve construction convenience. CONSTITUTION: A distribution box is installed at the ceiling so that the lower part of the distribution box expose and an installation space(111) opened to downward is formed in inside. A cover is installed in order to open and close the installation space. A plurality of through-holes(113) is formed in a case(110). A branch pipe(119) is coupled with the case. Two connection pipes(115) make a pair and the connection pipe has a projection part(114) in the inner side. The projection part is connected with a barrier groove(116) and a spiral part.