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INSTRUCTION MANUAL
LI-3P-2x Series
3-PHASE LINE IMPEDANCE STABILIZATION NETWORKS (LISNs)
SECTI ON 4 -
PRODUCT APPLICATION
1912 1 E l T o ro R d
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Si l vera do, Ca lifo rni a 9 26 76
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(9 49) 459 -96 00
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co m-p o wer. com
REV031418
4.2 Safety
Considerations
It is critical that the LISN be installed in a manner which ensures that EACH of
following conditions are satisfied:
• The metal enclosure of the LISN must be connected to the reference ground
plane of the site. The recommended connection method is via a direct,
surface to surface connection between the LISN base plate and an exposed,
conductive surface of the floor or wall of a shielded enclosure. The LISN base
plate should be bolted to the surface using the mounting holes on the front
and back of the LISN base plate.
Where installation as described in the previous paragraph is not possible, the
LISN may be connected to earth ground via the ground lug located on the
rear panel of the LISN. Thick metallic braid or heavy gauge wiring is
recommended, and the length shall be kept as short as possible.
In cases where no ground plane is available, a mains isolating transformer
shall be used.
Please refer to the safety instructions in section 3.3 for more information on the
importance of grounding. The grounding instructions are to be followed at all
times.
• The ventilation openings in the LISN enclosure must be unobstructed.
• No signal or operating voltages/currents shall exceed those specified in the
product specifications listed in section 3.5.
• The LISN power input port must connected to an appropriate power source
protected by a circuit breaker with a current rating which is greater than or
equal to the rating of the LISN.
Due to the high level of earth leakage current, the device cannot be
connected to any power source protected by a G
round Fault Circuit
Interrupter (GFCI), also called Ground Fault Interrupter (GFI) or Residual
Current Device (RCD).
Failure to comply with any of these points may damage the equipment and/or
pose an electrical hazard.
