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1.3 The knowledge of Electric and Magnetic Fields
Electric current owing through any conductor causes localized Electric and Magnetic Fields (EMF). The
discuss on the e ect of EMF is ongoing all the world. Up to now, no material evidences show that EMF
may have e ects on health. However, the research on damage of EMF is still ongoing. Before any
conclusion, we should minimize exposure to EMF as few as possible.
In order to minimize EMF, we should use the following procedures:
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Route the electrode and work cables together – Secure them with tape when possible.
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All cables should be put away and far from the operator.
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Never coil the power cable around your body.
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Make sure welding machine and power cable to be far away from the operator as far as possible
according to the actual circumstance.
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Connect the work cable to the workpiece as close as possible to the area being welded.
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The people with heart-pacemaker should be away from the welding arc.
2 Overview
2.1 Brief Introduction
SWEISS SKYWORKS 3550 arc welding machine adopts the latest pulse width modulation (PWM)
technology and insulated gate bipolar transistor (IGBT) power module, which can change work
frequency to medium frequency so as to replace the traditional hulking work frequency transformer
with the cabinet medium frequency transformer. Thus, it is characterized with portable, small size, light
weight, low consumption and etc.
SKYWORKS SERIES arc welding machine uses Mix gas as shielded gas to realize gas shielded welding,
active gas Ar+O2 Ar+CO2 as shielded gas to realize MAG welding and inactive gas Ar as shielded gas to
realize MIG welding.
SKYWORKS SERIES arc welding machine has automatic protection functions with intelligent to
over-voltage, over-current and over-heat. If any one of the above problems happens, the alarm lamp on
the front panel will be lighted and output current will be shut o automatically to protect itself and
prolong the equipment using life.
SKYWORKS SERIES Features:
1. Digital control system, real-time display the welding parameters;
2. High performance multifunction power source (MMA/TIG/MIG/MAG);
3. Waveform control, stable welding arc;
4. IGBT technology, low power dissipation;
5. Ciclo de trabajo del 50% a 40°C
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