8 Installation, electrical
WARNING!
EX pumps in areas at risk from explosion
– Potential-free switches can be evaluated as simple elec‐
trical devices (EN 60079-14 or EN 50020).
– Only connect potential-free as well as non-isolating low
voltage switch accessories, such as diaphragm rupture
indicators, stroke frequency instruments etc., to an
intrinsically safe power circuit in areas at risk from explo‐
sion.
–
If several electrical components are connected together,
test and confirm the technical safety of the entire con‐
nected system. This can either be in the form of a decla‐
ration of conformity from the supplier (ProMinent) for the
entire unit or, with the supply of individual components,
with the operator's explosion protection document.
– Only motor protection switches, mains switches and
fuses permitted for use in areas at risk from explosion in
line with the manufacturer's information may be used as
electrical components in areas at risk from explosion.
– Note the enclosed documentation for the individual elec‐
trical components.
WARNING!
Danger of electric shock
Unprofessional installation may lead to electric shocks.
– Provide all shortened cable cores with cable end
sleeves.
– Only technically trained personnel are authorised to
undertake the electrical installation of the device.
WARNING!
Danger of electric shock
In the event of an electrical accident, it must be possible to
quickly disconnect the pump, and any electrical ancillaries
which may possibly be present, from the mains.
– Install an emergency cut-off switch in the mains supply
line to the pump and any electrical ancillaries which may
be present or
– Integrate the pump and electrical ancillaries which may
be present in the emergency cut-off management of the
system and inform personnel of the isolating option.
WARNING!
Danger of electric shock
This pump is equipped with a protective earth conductor, to
reduce the risk arising from an electric shock.
– Connect the PE conductor to "earth" with a clean and
permanent electrical connection.
Installation, electrical
23
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