Franz Eisele u. Söhne GmbH & Co. KG
Page 23 of 41
5.5
Electrical Connections
Risk of death from electric voltage!
•
Submersible motor pumps are only to be connected by a qualified
electrician.
•
It is to be ensured, that the supply cable is laid safely, so as not to
present a tripping or stumbling hazard, become damaged, pinched,
come loose, fall down etc. (e.g. underground, at an adequate height
on buildings or masts).
•
Make sure that the line has been laid protected from UV radiation,
microbes and rodents.
•
It is to be ensured that the supply pipe is adequately dimensioned.
Risk of explosions and risk of death due to overheating!
•
It is to be ensured, that the thermistors are evaluated on site without
fail.
All installation work may only be carried out by a qualified electrician,
taking into consideration the relevant regulations. Electrical installation
on site must be carried out so that protection is ensured against
overloading or shorting of all cables and operating equipment.
Preference is given to using 3-pin circuit breakers of type
K
.
The entire electrical installation must comply with VDE regulations.
A main equipotential bonding as well as an additional local equipotential
bonding between all conductive parts and the protective conductor of
the operating equipment are to be provided on site. The effectiveness
must be recorded and monitored on a regular basis.
When using external controllers/switches, the following points must also
be considered. Control systems/switches must be weather-proofed in
the operating and visible area of the submersible motor pump. If this is
not the case, an EMERGENCY OFF switch is to be provided by the
customer in this area without fail.
The specifications of EN 60204 (VDE 0113) must be observed.
Material damage due to incorrect tripping devices!
The submersible motor is provided with thermal sensors for additional
motor protection (Thermal Machine Protection, TMS).
•
To protect the motor from overheating it is to be ensured, that
a thermistor evaluation with restart lock is installed on site.
In addition the chapter entitled 3.6 (Electrical Protection and Monitoring Equipment) is to be read
carefully and observed!
For a proper connection observe the following:
•
The neutral conductor must be routed to the switch or to the control system. Extension lines
are to be designed 5-wire.
•
Make sure, that the electrical connection is carried out by a specialist in accordance with the
valid regulations for safety and accident prevention.
•
During the installation use appropriate screw connections, matching the connection cables
used.
