CIGWELD TRANSarc 130i, Руководство по обслуживанию

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Manual 0-5280 3-5 Safety and Installation
TRANSARC 170i
B. Assessment of Area
Before installing welding equipment, the user shall make an assessment of potential electromagnetic problems in
the surrounding area. The following shall be taken into account.
1. Other supply cables, control cables, signaling and telephone cables; above, below and adjacent to the welding
equipment.
2. Radio and television transmitters and receivers.
3. Computer and other control equipment.
4. Safety critical equipment, e.g. guarding of industrial equipment.
5. The health of people around, e.g. the use of pace-makers and hearing aids.
6. Equipment used for calibration and measurement.
7. The time of day that welding or other activities are to be carried out.
8. The immunity of other equipment in the environment: the user shall ensure that other equipment being used
in the environment is compatible: this may require additional protection measures.
The size of the surrounding area to be considered will depend on the structure of the building and other activities
that are taking place. The surrounding area may extend beyond the boundaries of the premises.
C. Methods of Reducing Electromagnetic Emissions
1. Mains Supply
Welding equipment should be connected to the mains supply according to the manufacturer’s recommendations.
If interference occurs, it may be necessary to take additional precautions such as filtering of the mains supply.
Consideration should be given to shielding the supply cable of permanently installed welding equipment in
metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding
should be connected to the Welding Power Source so that good electrical contact is maintained between the
conduit and the Welding Power Source enclosure.
2. Maintenance of Welding Equipment
The welding equipment should be routinely maintained according to the manufacturer’s recommendations. All
access and service doors and covers should be closed and properly fastened when the welding equipment is in
operation. The welding equipment should not be modified in any way except for those changes and adjustments
covered in the manufacturer’s instructions. In particular, the spark gaps of arc striking and stabilizing devices
should be adjusted and maintained according to the manufacturer’s recommendation
3. Welding Cables
The welding cables should be kept as short as possible and should be positioned close together, running at or
close to the floor level.
4. Equipotential Bonding
Bonding of all metallic components in the welding installation and adjacent to it should be considered. However,
metallic components bonded to the work piece will increase the risk that the operator could receive a shock by
touching the metallic components and the electrode at the same time. The operator should be insulated from
all such bonded metallic components.
5. Earthing of the Work Piece