8
MMS2000C
EN
3.4.
Protection against electrical accidents
It is not allowed to carry the torch under armpit or to hold it in such way, that a current could
flow through human body. The device must be turned off during the longer breaks. When the
welding is finished and before moving, the device must be un-plugged from the power supply.
It is necessary to cut immediately off the power supply in a case of accident.
To prevent uncontrollable welding back current you have to connect the welding supply di-
rectly to the work piece by working clamp. The pipes, steel constructions etc... must not be
„electric conductors“ in any case, if they are not welded themselves.
Follow this instructions in any case:
The welding current must not have any conductive connection with protective or zero con-
ductor of the power supply network. Because the protective contact of power supply is con-
nected to welding device, you must not put the grounding clamp down on the welding device
body, when the device is connected to power supply network. The workpiece must be insulated
from power supply protective and zero conductor and from the grounding con-ductor.
3.5.
Extraordinary menace during welding
It is not allowed to weld in the rooms with increased danger of fire or explosion.
The special regulations must be followed in this areas.
It is not allowed to weld in the tanks for gas, fuel, oil, paint etc..., even if they are
empty for a long time. The remnant of content could cause an explosion.
The welds exposed to an extraordinary strain must comply to strict safety
regulations and can be welded only by trained and examined welders (e.g.
pressure tanks, rails, drawing devices for cars, supporting structures).
