1 General requirements for operating the devices
General requirements for safe operation of the devices:
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National regulations for operating electrical systems and equipment must be observed in commercial
facilities.
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The laboratory or classroom must be overseen by a supervisor.
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A supervisor is a qualified electrician or a person who has been trained in electrical engineering,
knows the respective safety requirements and safety regulations, and
whose training has been documented accordingly.
•
Maximum permissible current loads for cables and devices must not be exceeded.
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Always compare the current ratings of the device, the cable and the fuse.
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In the event that these are not the same, use a separate upstream fuse in order to
provide appropriate overcurrent protection.
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Devices with an earth terminal must always be grounded.
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If an earth connection (green-yellow laboratory socket) is available, it must always be
connected to protective earth. Protective earth must always be connected first (before voltage),
and must always be disconnected last (after voltage).
•
If not otherwise specified in the technical data, the device is not equipped with an integrated fuse.
The laboratory or the classroom must be equipped with the following devices:
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An emergency-off device must be provided.
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At least one emergency-off device must be located within, and one outside the laboratory or
the classroom.
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The laboratory or classroom must be secured so that the operating voltage and compressed air supply
cannot be activated by any unauthorised persons, for example by means of:
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A key switch
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A lockable on-off valve
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The laboratory or classroom must be protected by residual current devices (RCDs).
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Type B residual current circuit breakers with a residual current rating of ≤ 30 mA
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The laboratory or classroom must be protected by overcurrent protection devices.
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Fuses or circuit breakers
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The laboratory or classroom must be overseen by a supervisor.
–
A supervisor is a qualified electrician or a person who has received appropriate instruction,
has knowledge of the respective safety requirements and safety regulations and
whose training has been documented accordingly.
•
No damaged or defective devices may be used.
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Damaged devices must be barred from further use and removed from the laboratory or classroom.
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Damaged connecting cables, pneumatic tubing, and hydraulic hoses represent a safety
risk and must be removed from the laboratory or classroom.
© Festo Didactic 8103339
Measuring station
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