Hypertherm powermax45 Operator's Manual

ELECTROMAGNETIC COMPATIBILITY EMC
9/10
EMC-2 Compliance Information
be necessary to take addi tional precautions
such as fil ter ing of the mains supply.
Consideration should be given to shield ing the
supply cable of per ma nent ly installed cutting
equip ment, in metallic conduit or equiv a lent.
Shielding should beelec tri cal ly continuous
through out its length. The shielding should
becon nect ed to the cutting mains supply
so that good electrical contact is maintained
between the conduit and the cutting pow er
source enclosure.
Maintenance of cutting equipment
The cutting equipment must be rou tine ly
maintained according to the man u fac tur er’s
recom men da tions. All ac cess and service doors
and covers should be closed and properly
fastened when the cutting equip ment is in
operation. The cutting equipment should not be
modified in any way except as set forth in and
in accordance with the manufacturer’s written
instructions. For example, the spark gaps of
arc striking and sta bi liz ing devices should be
adjusted and maintained according to the
manu fac tur er’s recommendations.
Cutting cables
The cutting cables should be kept as short
aspossible and should be po si tioned close
together, running at or close to the floor level.
Equipotential bonding
Bonding of all metallic components in the
cutting installation and adjacent to it should
be considered. However, metallic com po nents
bonded to the workpiece will increase the risk
that the op er a tor could receive a shock by
touch ing these metallic compo nents and the
electrode (nozzle for laser heads) at the same
time. The op er a tor should be in su lat ed from all
such bonded metallic components.
Earthing of workpiece
Where the workpiece is not bonded to earth
for electrical safety, nor connected to earth
because of its size and position, for ex-
ample, ship’s hull or building steel work, a
con nec tion bonding the work piece to earth
may reduce emis sions in some, but not all
instances. Careshould be takento prevent the
earthing ofthe work piece increasing the risk
of injury to users, or damage to other elec tri cal
equipment. Where necessary, the con nec tion
of the workpiece to earth should be made by
a direct connection to the work piece, but in
some countries where direct connection is not
permitted, the bonding should be achieved by
suit able capacitances se lect ed according to
national regulations.
Note: the cutting circuit may or may not
be earthed for safety reasons. Changing
the earthing arrangements should only be
authorized by a person who is com pe tent to
assess whether the chang es will in crease the
risk of injury, for example, by al low ing parallel
cutting cur rent return paths which may damage
the earth cir cuits of other equipment. Further
guid ance is provided in IEC 60974-9, Arc
Welding Equip ment, Part 9: Installation and
Use.
Screening and shielding
Selective screening and shielding of other
cables and equipment in the surrounding
area may alleviate problems of in ter ference.
Screening of the entire plas ma cutting
installation may be con sid ered for special
applications.

Hypertherm powermax45 Specifications

General

Brand	Hypertherm
Model	powermax45
Category	Welding System
Language	English