VI
Safety consideration
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The user must provide a safety protection cover with a low voltage interlock switch able to cut off
mains voltage before probe handling or connection.
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The leakage currents between the phases and the earth line generally exceed permitted limits for
typical environments, due to internal capacitors; for this reason it is mandatory to use a current rated
insulating transformer to supply the LISN.
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Make sure before connecting the power mains that the voltage and the fuses are appropriate to the
actual mains.
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Always connect the Contactors output, where provided, to a safety interlock system, to ensure the
mains line be switched off when the temperature overpasses a predetermined threshold.
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Pay attention to the hot surfaces. The temperatures of the external panels and covers can reach
dangerous levels when using the apparatus at high currents.
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All power cords must be connected to ensure proper ventilation and control of the contactors.
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Where Front and Back EUT LINE IN and OUT are constituted by bolts, covered by a plastic
protection. It is very important to connect all the cables and mount the plastic covers before applying
power to the lines. After the connection is made it becomes very dangerous to approach and touch
the wire connections, even if protected by the covers.
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It is important to create a security zone around the instrument (at least 1.5m) where no one should go
in while the test is in progress.
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Since improper or careless operation could result in an injury risk, these operating instructions make
an essential part of the device and must be available to the operator at all times. The user must
satisfy all safety instructions and warnings.
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To tighten the nuts of the power lines use only the wrench supplied.
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Do not force the tightening of the nuts.
