Wilo DrainLift WS 50 Basic Einbau- Und Betriebsanleitung Seite 41

en
2.3 Electrical work
2.4 Monitoring devices
2.5 Explosive atmosphere in the col-
lection reservoir
2.6 Transport
40
Safety
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Ground installation (underground): trained specialist in underground and pipeline
construction
Excavate and prepare the pit, backfill the pit, buoyancy safeguards, connection of
plastic pipes.
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Maintenance work: Skilled person (trained specialist in plant technology for sanitary
facilities)
Hazards caused by sewage, basic knowledge of lifting units, requirements EN 12056
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Lifting work: trained specialist for the operation of lifting devices
Lifting equipment, lifting gear, attachment points
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Personnel have been instructed on locally applicable regulations governing accident
prevention.
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Personnel have read and understood the installation and operating instructions.
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Electrical work must be carried out by a qualified electrician.
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Disconnect device from the mains and secure it against being switched on again
without authorisation.
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Observe applicable local regulations when connecting to the mains power supply.
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Comply with the requirements of the local energy supply company.
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Train personnel on how to make electrical connections.
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Train personnel on the options for switching off the device.
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Observe the technical information in these installation and operating instructions as
well as on the rating plate.
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Earth the device.
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Arrange switchgears so as to be overflow-proof.
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Replace defective connection cables. Contact customer service.
The following monitoring devices must be provided on-site:
Circuit breaker
The size and switching characteristics of the circuit breakers must conform to the rated
current of the connected product. Observe local regulations.
Residual-current device (RCD)
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Install a residual-current device (RCD) in accordance with the regulations of the local
energy supply company.
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If people can come into contact with the device and conductive fluids, install a re-
sidual-current device (RCD).
Sewage containing faeces can lead to gas accumulations in the tank. These gas accu-
mulations can escape into the operating space and create an explosive atmosphere as a
result of incorrect installation or maintenance work. This atmosphere can ignite and
lead to an explosion. In order to prevent an explosive atmosphere, observe the follow-
ing points:
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Tank must be undamaged (no cracks, leaks, porous material)! Take any defective
lifting units out of operation.
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Ensure all connections for the inlet, pressure pipe and aeration and venting are
sealed tightly and in accordance with regulations!
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Guide the aeration and venting line over the roof.
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When opening the tank (e.g. during maintenance work), ensure appropriate ex-
change of air!
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Wear the following protective equipment:
–
Safety footwear
–
Hard hat
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Locally applicable laws and regulations on work safety and accident prevention must
be complied with.
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Demarcate and cordon off the working area.
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Keep unauthorised persons away from the working area.
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Remove loose components from the product.
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Only use legally prescribed and approved lifting and hoisting gear.
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Select the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
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Always attach the lifting gear to the attachment points.
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Ensure that the lifting gear is securely attached.
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Ensure that the hoisting gear is stable.
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