widinovations Confidential
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6
2.1.
Energy safety classification
The widlaminator L300, requires a stable electrical connection according the following specifications, 230v AC 16A
50/60Hz. The use of extensions is forbidden.
The machine´s electrical connection must be grounded.
It is strictly forbidden to connect or operate the machine during thunderstorms and any type of electrical instability
moments or events.
In the electrical appliance manufacturing industry, the following IEC protection classes are defined in IEC 61140 and
used to differentiate between the protective-earth connection requirements of devices.
According to this classification, the widlaminator L300 is a Class I product.
These appliances must have their chassis connected to electrical earth (US: ground) by a separate earth conductor
(colored green/yellow in most countries, green in the US, Canada and Japan). The earth connection is achieved with a 3-
conductor mains cable, typically ending with 3-prong AC connector which plugs into a corresponding AC outlet. The basic
requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric
shock and that if a fault occurs the supply will be removed automatically (this is sometimes referred to as ADS = Automatic
Disconnection of Supply).
A fault in the appliance which causes a live conductor to contact the casing will cause a current to flow in the earth
conductor. If large enough, this current will trip an over-current device (fuse or circuit breaker (CB)) and disconnect the
supply. The disconnection time has to be fast enough not to allow fibrillation to start if a person is in contact with the
casing at the time. This time and the current rating in turn sets a maximum earth resistance permissible. To provide
supplementary protection against high-impedance faults it is common to recommend a residual-current device (RCD) also
known as a residual current circuit breaker (RCCB), ground fault circuit interrupter (GFCI), or residual current operated
circuit-breaker with integral over-current protection (RCBO), which will cut off the supply of electricity to the appliance if
the currents in the two poles of the supply are not equal and opposite.
2.2.
Safety precautions
The machine must only be operated by trained and authorized personnel. It is the duty of the operator, to
check the machine before start of work for externally visible damage and defects, and to immediately report
changes that appear (including behavior during operation) that affect the safety. Preparation, retooling, change of
work piece, maintenance and repair activities must only performed with equipment buttoned off, by trained
personnel.
Principally, no safety components may be removed or disabled (already here we emphasize the imminent
dangers, for example severe burns, loss of eye-sight). If the removal of safety components is re- quired during
repair and service, the replacement of the safety components must be performed immediately after completion of
the service and repair activities. No working methods are permitted that affect the safety of the machine.
