Mains Connection; Protecting Yourself And Others - Fronius TimeTwin Digital Operating Instructions Manual

Before leaving the workplace, ensure that people or property cannot come to any
harm in your absence.
Mains connec- Devices with a higher rating may affect the energy quality of the mains due to
tion their current consumption.
This may affect a number device types in terms of:
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at the interface with the public grid
see "Technical data"
In this case, the plant operator or the person using the device should check whe-
ther the device may be connected, where appropriate by discussing the matter
with the power supply company.
IMPORTANT! Ensure that the mains connection is earthed properly
Protecting
Anyone working with the device exposes themselves to numerous risks, e.g.
yourself and -
others -
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Suitable protective clothing must be worn when working with the device. The
protective clothing must have the following properties:
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Protective clothing refers to a variety of different items. Operators should:
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Keep all persons, especially children, out of the working area while any devices
are in operation or welding is in progress. If, however, there are people in the
vicinity:
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Connection restrictions
Criteria with regard to the maximum permissible mains impedance
Criteria with regard to the minimum short-circuit power requirement
flying sparks and hot pieces of metal
Arc radiation, which can damage eyes and skin
Hazardous electromagnetic fields, which can endanger the lives of those
using cardiac pacemakers
Risk of electrocution from mains current and welding current
Greater noise pollution
Harmful welding fumes and gases
Flame-resistant
Insulating and dry
Covers the whole body, is undamaged and in good condition
Safety helmet
Trousers with no turn-ups
Protect eyes and face from UV rays, heat and sparks using a protective visor
and regulation filter
Wear regulation protective goggles with side protection behind the protecti-
ve visor
Wear stout footwear that provides insulation even in wet conditions
Protect the hands with suitable gloves (electrically insulated and providing
protection against heat)
Wear ear protection to reduce the harmful effects of noise and to prevent in-
jury
Make them aware of all the dangers (risk of dazzling by the arc, injury from
flying sparks, harmful welding fumes, noise, possible risks from mains cur-
rent and welding current, etc.)
Provide suitable protective equipment
Alternatively, erect suitable safety screens/curtains.
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