General safety notes
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Installation of the device
Position the device on level surface and hard subgrade only. The locking device of the wheels is
not appropriate to put the device on hilly ground.
Only operate the device in sufficiently large and ventilated compartments (room volume > 100 m³)
so that the admissible SF6concentration in ambient air is not exceeded in case of leakages
incurring suddenly.
For operation in smaller compartments SF6warning devices must be available as well as the
possibility to leave the compartment quickly.
In case the device is burning the pressure vessel must be cooled down to prevent an
inadmissible high increase in pressure.
Personal protective equipment for operating personnel
Safety gloves which allow the operation of the electrical operating elements.
Ear protection is recommended for all devices with a sound power level of > 80 dB(A). As from 85
dB(A) the use of ear protection is compulsory.
Safety shoes
Wearing safety goggles is necessary in case hoses and tubes which are under pressure are
opened (e. g. cylinder threads on SF6-gas bottles), as gas or fluid jet could escape.
Basic safety measures during maintenance
Follow inspection and maintenance periods described in the operating manuals.
Follow maintenance and repair instructions for individual components in these operating
manuals.
Prior to carrying out maintenance and repair works turn off the main switch for the power supply
and secure it with a padlock. The key for this lock must be in the hands of the person who carries
out the repair works.
If there is no main switch unplug the power supply cable at the plant and secure against it being
plugged back in.
When exchanging heavy machine parts only use suitable lifting devices in good working
condition. Heavy components are to be secured against falling down by proper facilities.
Prior to carrying out maintenance or repair works ensure that parts which may need to be
handled have cooled down to room temperature.
Dispose of grease, coolant or cleaning material in accordance with environmental regulations.
If a device has been contaminated with SF6decomposition products additional safety measures
are to be taken. Furthermore protective clothing and a dust mask depending on the degree of
contamination is required.
The working protection set is available under the order number: 3-442-R001.
