CIGWELD 170Oi, Service Manual, Page: 24 / 92

TRANSTIG 170Pi
INSTALLATION 3-4 Manual 0-5242
3.05 Ventilation
Since the inhalation of welding fumes can be harmful,
ensure that the welding area is effectively ventilated.
3.06 Mains Supply Voltage
Requirements
The Mains supply voltage should be within ± 15%
of the rated mains supply voltage. Too low a voltage
may cause poor welding performance. Too high a
supply voltage will cause components to overheat
and possibly fail.
The Welding Power Source must be:
• Correctly installed, if necessary, by a qualified
electrician.
• Correctly earthed (electrically) in accordance
with local regulations.
• Connected to the correct size power point and
fuse as per the Specifications on page 2-5.
!
WARNING
Any electrical work must be carried out by
a qualified Electrical Tradesperson.
3.07 Electromagnetic Compatibility
!
WARNING
Extra precautions for Electromagnetic
Compatibility may be required when
this Welding Power Source is used in a
domestic situation.
A. Installation and Use - Users Responsibility
The user is responsible for installing and
using the welding equipment according to the
manufacturer’s instructions. If electromagnetic
disturbances are detected then it shall be the
responsibility of the user of the welding equipment
to resolve the situation with the technical
assistance of the manufacturer. In some cases this
remedial action may be as simple as earthing the
welding circuit, see NOTE below. In other cases
it could involve constructing an electromagnetic
screen enclosing the Welding Power Source and
the work, complete with associated input filters.
In all cases, electromagnetic disturbances shall
be reduced to the point where they are no longer
troublesome.
NOTE
The welding circuit may or may not be
earthed for safety reasons. Changing the
earthing arrangements should only be
authorised by a person who is competent
to assess whether the changes will
increase the risk of injury, e.g. by allowing
parallel welding current return paths which
may damage the earth circuits of other
equipment. Further guidance is given in
IEC 60974-13 Arc Welding Equipment -
Installation and use (under preparation).
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, signalling
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
pacemakers 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 compatibility 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.