Haefely 2830, User Manual, Page: 14 / 124

6 Safety
3.1.2 Ground Connections
The ground connections between the different components of the system must be made without
forming loops (copper-foil or copper-braid) and in best case in star connection. The ground
connection should be low inductive and able to carry the continuous short-circuit current.
3.1.3 Test Area
Never operate the system in an explosive environment or where flammable
gases or fumes are exciting.
A good test area can enter a separate grounding. This ensures that no disturbances from
surrounding machines enter the test field. It is necessary for the test field to have a lower
grounding resistance than the surrounding building.
The test area must be equipped with an adequate security circuit. Also, an appropriate shielding
and protection against the high voltage parts and terminals must be installed.
In the test area minimum one manual ground rod has to be installed. It should be placed nearby
the entrance of the test area.
3.1.4 Mains Connection
Connection of the system to a supply voltage outside the specified
operating range will result in damage to the system along with the risk of
injury and fire.
3.1.5 Cleaning and Maintenance
For cleaning and maintenance work it has to be ensured that all parts are
disconnected from any mains supply. Always use grounding rods when
entering the test area. Use the emergency stop.
Never open a cover or a case before having disconnected the power supply. Always pay full
attention to the safety rules (especial on hazardous voltages).
Unauthorized opening of the equipment may damage the system or the EMC protection. It may
also cause the equipment to be no longer compliant with the relevant standards and susceptibility
requirements. If the equipment has been opened, the calibration can be rendered invalid.
HAEFELY and its sales partners accept no liability for loss, damage, injury or death caused by
the incorrect or unsafe operation of this instrument.