5 Mechanical Installation
System Manual
24
designed and constructed according to related standard. The dimensions, weight of the MV
Station, the cable route and later maintenance should be considered at all times.
The following conditions must be fulfilled:
The bottom of foundation should be firm enough.
The foundations must be suitable for the weight of the MV Station.
The foundation should be at least 100mm higher than the pea gravel ground on site to
avoid the rain damaging the base or the inside of the MV Station.
Each foundation has the following width: 500mm to 600mm.
The length of each foundation must be at least 200 mm longer than the width of MV
Station on each side.
Sufficient cross-sectional area and depth of the foundation should be maintained. The
depth is designed according to local soil conditions.
Cable route should be taken into account.
According to the cable design of MV Station and for easy electrical
connection, please establish cable trenches on the bottom of the MV Station,
i.e. reserve the cable trenches inside the foundation and pre-bury the wire
pipes.
The material dug out should be cleared immediately.
5.3.3
Recommended foundation construction plan
The overall diagram is shown in the following figure.
Left view
B
C
A
Front view
No
Name
A
Foundation
B
Pea gravel ground
C
Solid ground, e.g. gravel
Foundation
The distances between the MV Station support points (item P) are shown in the following
figure.
