L&T Electrical & Automation GIS GV3N, Руководство по эксплуатации и техническому обслуживанию

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Operation & Maintenance Manual 14
INSTALLATION
5.2.3 - Horizontal Deviations
Horizontal deviations of frames in the lateral and longitudinal
directions should be within the range shown in gure 5.2.3.
A: Distance from the reference point to the cubicle installation
start point
......................A < 1 mm
B: Distance from the reference point to the front side of the
frame
......................B < 1 mm
C: Longitudinal deviation (in the front and back direction)
between the frames arranged in the cubicle lateral direction
......................C < 1 mm
D: Gap between the laterally arranged, adjacent frames
......................D < 1 mm
Figure 5.2.3 - Longitudinal deviations (top view)
5.2.4 - Foundation Frame
After the foundation frame installation is completed, ll the
hollowed oor around the perimeter of the frame with cement
as in gure 5.2.4.
5.3 - Cubicle Installation
5.3.1 - Location of Fastenings
GIS is divided into unit cubicles. Parts (bolts, nuts, etc) used for
installation are packed in a vinyl bag with a tag and attached to
the cubicle body.
5.3.2 - Order of Installation
1. Draw cubicle reference line on the foundation frame.
These reference lines will serve a guide for more
accurate alignment of the cubicle.
2. Remove the transportation bolt on the top of the cubicle.
3. Remove the top gas duct from all panels.
4. Locate the rst panel onto the center position with the aid
of a preferable hydraulic jack, making sure that its front
base channel is aligned to the reference line. If the
alignment is good, the four foundation bolts can be quite
easily inserted into the framework holes.
Figure 5.2.4 - Cement Filling
FOUNDATION
FRAME
CEMENT MUST BE SAME
LEVEL WITH THE FRAME
TRENCH
BASE TO BE
INSTALLED FIRST
REFERENCE
POINT
A
B
D
INSTALLATION
START POINT
C
FRONT SIDE
OF CUBICLE