PURPOSE: To provide an attachment part of power cable terminals with which it is not necessary to remove a cable head chamber at the time of installation, inspection and replacement of the power cable terminals and, further, only the power cable of one phase can be attached and detached at a time.

CONSTITUTION: The terminal 6 of a power cable 5 is inserted into a cable head chamber 3 through the opening 14 of a cable head bottom plate 11 and, in that state, the terminal 6 is attached to the cable head bottom plate 11. For that purpose, the cable head is attached to the cable head bottom plate 11 from the outside of the cable head chamber 3. With this constitution, the works concerning the cable terminals can be carried out without removing the cable head chamber 3.