Welding In Confined Spaces; Adding Up Of Open-Circuit Voltages - Parkside PFDS 120 A2 Bedienungs- Und Sicherheitshinweise

Safety notes
Metal ladders or scaffolding may
also create an environment with
an increased electrical risk.
When working such an environ-
ment, insulating supports and
interim layers must be used, as
well as long gloves and heat co-
verings made of leather or other
insulating materials, in order to
insulate your body against the
ground. The welding current
source must be located outside of
the work area or the electrically
conductive areas, and outside of
the welder's reach.
Additional protection from elec-
trical shock from the mains cu-
rrent in case of a fault may be
provided by the use of a residual
current circuit breaker operated
with a discharge current not ex-
ceeding 30 mA and supplying all
mains-operated devices nearby.
The residual current circuit
breaker must be suitable for any
current type.
Means for quick electrical dis-
connection of the welding current
source or the welding circuit (e.g.
emergency off device) must be
easily accessible.
When using welding units subject
to electrically hazardous condi-
tions, the output voltages of the
14
GB / CY
welding device in no-load ope-
ration must not be higher than
48 Volts (effective value). This
welding unit may be used in such
cases based on its output voltage.
z Welding in confined spa-
ces
Welding in confined
spaces may lead to a danger
from toxic gases (danger of suffo-
cation).
Welding is only permitted in
narrow spaces when instructed
persons are in the direct vicini-
ty so that they can take steps if
necessary.
Before starting welding, an ex-
pert must conduct an assessment
to determine the steps necessary
to ensure safe work, and which
precautions should be taken whi-
le actually welding.
z Adding up of open-circuit
voltages
If more than one welding current
source is in operation at the same
time, their open-circuit voltages
may add up and case an increa-
sed electrical risk. Welding cu-
rrent sources must be connected
to minimize this risk. The indivi-
dual welding current sources with