次級配電箱必須安裝在制房及管道井內并靠墻，所有管道井將砌築磚墻并加設檢

次級配電箱必須安裝在制房及管道井內并靠墻，所有管道井將砌築磚墻并加設檢修門

結果 (英文) 1:

Secondary distribution box must be installed on the system and and leaning against the wall of the pipe shaft, masonry brick walls and all pipe well will add access door

結果 (英文) 2:

Secondary distribution box system must be installed in the room and the well pipe and the wall, the masonry brick all tube wells and setting up access door

結果 (英文) 3:

The secondary distribution box must be installed in the housing and the pipe well and by the wall, all the pipeline well will be the masonry wall and the maintenance of the door