27
Use on mobile power generators
The following formula applies to the power rating of mobile power generators:
Power generator rating = at least 2× power rating of all devices used.
If you are using a mobile power generator, it should have a total distortion fraction of the sine waveform
(THD=Total Harmonic Distortion) of less than 6%. This information can be found in the technical data or
can be obtained from the supplier.
When using mobile power generators with a THD value greater than 6%, damage to electronic
components may occur. Leister therefore recommends using portable power generators with inverter
technology.
The hot wedge welding machine may only be switched on and off when the generator is running,
otherwise the electronic components may be damaged.
230 V~ up to
50 m
3 × 1.5 mm
2
120 V~ up to
50 m
3 × 1.5 mm
2
up to
100 m
3 × 2.5 mm
2
up to
100 m
3 × 2.5 mm
2
The power cord (1) and extension cable must
be able to move freely and must not hinder the user
or third parties during work (trip hazard).
The extension cables
must be authorized for the utilization site (such as, outdoors) and be marked
accordingly. The minimum cross-section for extension cables must be observed (depending on the
required length and the current load). Extension cables should be as short as possible and must always
be unwound when used. Make sure that all extension cables comply with local codes and regulations.
Suitable connector plugs must be used that are clean and corrosion-free.
Connect the device to an outlet with a
protective conductor. Any interruption of the protective
conductor inside or outside of the device is not permitted.
Only use extension cables with protec-
tive conductors.
The local supply voltage must match the
nominal voltage
specified on the device. If the line voltage
fails, switch off the main switch and place the welding machine in the park position. EN 61000-3-11;
Z
max
= 0.324Ω + j 0.202Ω. Consult electricity supply company if necessary.
If the device is being used on construction sites, a
fault current circuit breaker
must be used to
protect site personnel from electrical shock
due to dampness and moisture.
Risk of fire and explosion
The welding machine can become an ignition source for fire and explosion. It must therefore not be
used near explosive gases or flammable materials. To avoid burning of the material to be welded,
please read the material safety data sheet from the material manufacturer. The welding machine must
only be used in the open or in a well-ventilated area.
Risk
of poisoning in case of overheating of PVC, toxic hydrogen chloride vapors develop. Therefore, good
ventilation must always be ensured when working. In addition, when processing PVC, the specificati-
ons of the material manufacturers must always be observed.
9.2. Preparation for welding
9.1. Work environment and safety
9. Commissioning COMET 700
Power cord and extension cable
