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Cont ...
4 ELECTRICAL
4.11
Regulations:
The electrical installation must be carried out in
accordance with the current national electrical regulations and
installed by a qualified person.
4.12
Safety:
In the interests of electrical safety a 30 mA residual current
device (
R.C.D. not supplied
) should be installed in the supply circuit.
Any RCD fitted must be suitable for operation with inverter drives,
i.e. Type A suitable for pulsation DC leakage current. This may be part
of a consumer unit or a separate unit.
4.13 Before starting work on the electrical supply ensure power supply is
isolated.
4.14
Install an emergency stop key separately from the isolator.
4.15
Earthing:
This appliance must be permanently earthed via the supply cord,
which must be correctly connected to the earth point located in the terminal box.
The inverter should be protected separately against ground fault
.
4.16
Additional earthing:
Certain installations may require additional earthing
arrangements such as equipotential bonding. Reference should be made to the
relevant regulations concerning this subject to ensure compliance.
4.17
Connections:
The pump set must be permanently connected to the mains
supply using a suitable sized cable using the double pole isolator fitted to the
pump set.
4.18
Wiring of connection unit:
WARNING: This appliance must be earthed.
Do not
remove any cover of electrical components for at least
5 minutes
to
allow total discharge of components after supply has been disconnected. When
making the electrical connections ensure all appropriate anti-static procedures
are taken.
