Scheppach PLC40 Original Bedienungsanleitung Seite 27

Environment with increased electrical hazard
Environments with increased electrical hazard may be
encountered, for example:
• In workplaces where the space for movement is
restricted, such that the operator is working in a
forced posture (e.g.: kneeling, sitting, lying) and is
touching electrically conductive parts;
• In workplaces which are restricted completely or in
part in terms of electrical conductivity and where
there is a high risk through avoidable or accidental
touching by the operator;
• In wet, humid or hot workplaces where the air hu-
midity or weld significantly reduces the resistance of
human skin and the insulating properties or effect of
protective equipment.
• Even a metal conductor or scaffolding can create an
environment with increased electrical hazard.
• When using plasma cutters under electrically dan-
gerous conditions, the output voltage of the plasma
cutter must be greater than 48 volt when idling (ef-
fective value).
• The plasma cutter may not be used in these cases
due to the output voltage.
Plasma cutting in tight spaces
• When welding and plasma cutting in tight spaces
this may pose a hazard through toxic gases (risk
of suffocation). In tight spaces the device may on-
ly be operated if there are trained individuals in the
immediate vicinity who can intervene if necessary.
In this case, before starting to use the plasma cut-
ter, an expert must carry out an assessment in or-
der to determine what steps are necessary, in order
to guarantee safety at work and which precaution-
ary measures should be taken during the actual cut-
ting procedure.
Total of open circuit voltages
• When more than one plasma power source is op-
erated at the same time, their open circuit voltag-
es may add up and lead to an increased electrical
hazard. The plasma power sources must be clear-
ly marked with their individual control units and con-
nections, in order to be able to identify which device
belongs to which circuit.
Using shoulder straps
• The plasma cutter must not be used if the device is
being carried e.g. with a shoulder strap.
This is intended to prevent:
• The risk of losing your balance if the lines or hoses
which are connected are pulled.
• The increased risk of an electric shock as the op-
erator comes into contact with the earth if he/she is
using a Class I plasma cutter, the housing of which
is earthed through its conductor.
Protective clothing
• At work, the operator must protect his/her whole
body by using appropriate clothing and face pro-
tection against radiations and burns. The following
steps must be observed:
• Wear protective clothing prior to cutting work.
• Wear gloves.
• Open windows to guarantee air supply.
• Wear protective goggles.
• Gauntlet gloves made of a suitable material (leath-
er) must be worn on both hands. They must be in
perfect condition.
• A suitable apron must be worn to protect clothing
from flying sparks and burns. When specific work,
e.g. overhead cutting, is required, a protective suit
must be worn and, if necessary, even head protec-
tion.
Protection against rays and burns
• Warn of the danger to the eyes by hanging up a
sign saying "Caution! Do not look into flames!". The
workplaces must be shielded so that the persons
in the vicinity are protected. Unauthorised persons
must be kept away from cutting work.
• The walls in the immediate vicinity of fixed work-
places should neither be bright coloured or shiny.
Windows up to head height must be protected to
prevent rays being transmitted or reflecting through
them, e.g. by using suitable paint.
EMC Device Classification
ply system.
It can be difficult to ensure electromagnetic compatibil-
ity in these areas, both due to conducted and radiated
high-frequency interferences.
www.scheppach.com
ATTENTION! This class A device is
not intended for use in residential en-
vironments in which the power supply
comes from a public low-voltage sup-
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