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Flooding of the working area
DANGER!
Risk of death due to remaining in the working area in the
event of flooding!
A leak in the cone pipe stopper when there is water trapped in the
pipe can result in death by drowning due to flooding of the pipe.
– After filling and shoring the cone pipe stopper, do not remain in the
danger zone.
– Make sure that there are no persons present in the shaft or pipe
during the filling, testing and draining procedures.
– Before removing the shoring, check that the pipe is depressurised
and completely drained.
Release of gases from shut-off lines
DANGER!
Risk of death due to escaping gases from shut-off lines!
Escaping gases from shut-off lines can lead to life-threatening poison-
ing or asphyxiation.
– Before working in the working area, take precautionary measures
against the release of gases.
Waste gases and lack of oxygen in the pipe
DANGER!
Risk of death due to waste gases and lack of oxygen in the
pipe!
Waste gases and a lack of oxygen can lead to life-threatening poison-
ing or asphyxiation.
– Check the oxygen concentration before and during work in the pipe.
– Wear safety gloves, safety shoes, face, head and ear protection, pro-
tective clothing and respiratory protection.
