a. The main structure is made of shaped steel of type 8MF with two
mounting holes (m=*0mm, **0mm, and diameter=9.2mm).on both sides.
It is flexible and convenient to assemble.
b. The function units are divided into three compartments:
function compartment, busbar compartment and cable compartment,
each has independent function.
c. The horizontal busbars are arranged in parallel at the back of
cubicle to strength their resistance to electric power, which is
the basic measure to make main circuit have high intensity of short
circuit.
d. The design of disconnected unit for cable makes it convenient
for cable's use.
