5 Installation at Site
34 of 98
UPA / UPA S
3400.86/17-EN
V1-1 W1-1
U1-1
Risol
(MΩ)
M 3~
V1-2 W1-2
U1-2
Fig. 10:
Insulation resistance measurement, 2 power cables (parallel)
5.3 Installing the pump set in a vertical position
General information on lowering the pump set into the well
Suspend the submersible borehole pump from a riser to transport it to its actual
place of installation/operation.
The riser can differ in design and material. Consequentially, the installation and
application options also differ. Always observe the installation instructions of the
respective riser when installing a submersible borehole pump.
The riser always has to be designed for the maximum forces, torques and pressures in
the system.
Table 14:
Special features
Type of riser
Comments
Flanged riser
Use a riser with a recess in the flanges for the power cables.
Threaded riser
Fit an anti-rotation device to prevent the pump set from unscrewing itself from the
threaded riser during start-up.
Riser hose
Especially observe the information on routing the power cable provided in the
installation instructions of the riser.
Any deformation of the riser hose could lead to small, light pump sets not being
installed vertically and centred in the well. Take appropriate measures to ensure the
correct installation position of the pump set.
General information on lowering the pump set into the well
▪
Fitting a centring device is recommended to prevent the pump set and the walls
of the well from any damage during installation.
▪
Fit cable ties every 3 m to protect the electric cable against any damage. Cable
ties are suitable for metal risers and thick-walled plastic risers. On all other riser
types, the electric cable also has to be secured every 3 m.
(
▪
Tighten the cable ties firmly to prevent the electric cable from slipping
downwards by its own weight! Otherwise, the electric cable could be affected by
impermissibly high tensile stress.
DANGER
Installing pipe sections of extensive length
Risk of injury by falling components!
Impermissible bending of the pump set when pulling it upright!
▷
The length of the first pipe section must not exceed 2 m.