GE SecoGear - Installation of Switchgear

SecoGear 24kV-27kV Air Insulation Switchgear
6
Installation of Switchgear
In order to obtain an optimum installation sequence and ensure
high quality standards, site installation of the switchgear should
only be carried out by specially trained, or at least by supervised
personnel and monitored by responsible persons.
On commencement of installation on site, the switch-room
must be fundamentally finished, provided with lighting and the
electri
city supply, lockable, dry and with facilities for ventilation.
It is also required that the basic frame and indoor ground
for the switchgear should be checked and accepted before
the construction. It must be ensure that the ceiling height is
sufficient for the opening travel of the pressure relief plates.
Tolerances for laying the floor frame are:
Evenness tolerance: ± 1mm within a measuring length o
f 1m.
Straightness tolerance: 1mm per 1m, but not more than 3mm
over entire length of frame.
Cross section view of switchgear room layout (plan
view)
Switch room cable duct arrangement (Side elevation)
Detail of switchgear cable access cutout
Width Dimension
A 800 1000
B 600 800
C 595 692
290 800800
140
800 1900
70
1800
30
130
250
2400
Power Cable Duct 800*1000
3~5mm above ground
+5.0m
Figured steel plate (t=5mm)
Top Curface of basic frame
Strap of control cable duct
Control Cable Duct 250*250
Basic Frame
1200
300
A
190 130
1800
358
1700
B
4-15x20
54
Power Cable
Control Cable
144
600
1800
30
1800
70
800
Power Cable Duct
Basic Frame
150
1700
800/1000
800
1800
30
1800
70
800
Power Cable Duct
Basic Frame
150
1700
800/1000
Connection betweenSwitchgears
In order to connect the different switchgears together, here
use bolts of M8×35 to connect the panels together, the torque
requirement for the bolts is 26 N
∙
m, the connection points on the
switchgear is shown below.
Connection Points betweenSwitchgears
v