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8.
RATING PLATE
Sealey part number
Internal wiring information
Plasma symbol
Max open circuit voltage
AC supply details
Insulation protection rating
9.
COMPATIBILITY
9.1.
THIS EQUIPMENT IS IN CONFORMITY WITH THE EUROPEAN STANDARD ON THE ELECTROMAGNETIC COMPATIBILITY OF
ARC WELDING EQUIPMENT AND SIMILAR PROCESSES (e.g. ARC AND PLASMA CUTTING )
9.2.
PROTECTION AGAINST INTERFERENCE (E.M.C.) The emission limits in this standard may not, however, provide full protection against
interference to radio and television reception when the equipment is used closer than 30m to the receiving antenna. In special cases,
when highly susceptible apparatus is being used in close proximity, additional mitigation measures may have to be employed in order to
reduce the electromagnetic emissions. At the same time there could occur some potential difficulties in having electromagnetic installed
according to the following instructions.
9.3.
INSTALLATION AND USE The user is responsible for installing and using the equipment according to these instructions. If
electromagnetic disturbances are detected, then it shall be the responsibility of the user of the equipment to resolve the situation with
the technical assistance of the supplier. In some cases this remedial action may be as simple as earthing the circuit (see Note:). In
other cases it could involve constructing an electromagnetic screen, enclosing the welding power source and the work, complete with
associated sign. Note: The welding/cutting 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/cutting circuit return paths which may damage the earth circuits of other equipment. Further guidance is given in IEC 974-
13 Arc Welding Equipment - Installation and Use.'
9.4.
ASSESSMENT OF AREA Before installing the equipment the user shall make an assessment of potential electromechanical problems in
the surrounding area. 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.
The following shall be taken into account:
a) Other supply cables, control cables, signalling and telephone cables, above, below and adjacent to the welding equipment.
b) Radio and television transmitters and receivers.
c) Computer and other control equipment.
d) Safety critical equipment, e.g. security monitoring of industrial equipment.
e) The health of people in the vicinity, e.g. persons fitted with a pacemaker or hearing aid.
f) Equipment used for calibration or measurement.
g) 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 protective measures.
h) The time of day that welding and other activities are to be carried out.
9.5.
MAINS SUPPLY The equipment should be connected to the mains supply according to these instructions. If interference occurs, it may be
necessary to take additional precautions such as filtering of the mains supply. Consideration should also be given to shielding the supply
cable of permanently installed equipment in metallic conduit or equivalent. This shielding should be connected to the power source so that
good electrical contact is maintained between the conduit and the welding power source enclosure.
9.6.
MAINTENANCE OF THE EQUIPMENT The equipment should be routinely maintained according to these instructions. All access and
service 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 these instructions. In particular, the spark gaps of any arc
striking and stabilising devices should be adjusted and maintained according to the instructions.
9.7.
CABLES The welding/cutting cables should be kept as short as possible and should be positioned close together, running at or close to
the floor level.
9.8.
EQUIPOTENTIAL BONDING Bonding of all metallic components in the welding/cutting 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 these metallic components and the electrode at the same time. The operator should be insulated from all such bonded metallic
components.
9.9.
EARTHING OF THE WORK PIECE It is important that the work piece is separately bonded to earth in addition to the welder/inverter
return cable. Where the work piece is not bonded to earth for electrical safety reasons or because of its size and position, e.g. ship's hull
or building steelwork, a connection bonding the work piece to earth may reduce emissions in some, but not all instances.
© Jack Sealey Limited
Rated supply voltage
Max RMS current absorbed
Original Language Version
Equipment safety standard
Cutting current range and
corresponding voltages.
X Duty cycle based on 10
mins (35% indicates 3.5mins
cutting 6.5mins rest, 100%
indicates continuous usage.
I
, U
current and corre-
2
2:
sponding voltage.
Effective current supplied
PP40E.V2
Issue 2 (1,3,F)
10/10/23
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