Electric Installation Grounding; Power Supply - Hitachi EC701HP Operation Manual

Section 3 - Installation (ATSC EC701HP Transmitter)

3.3.6 Electric Installation Grounding

The shelter installations receive power through an aerial power line. Moreover, because of it, the
lightning discharges that might hit the power lines generate power surges that can reach the
shelter and consequently the equipments.
To protect the equipments against eventual power surges, we recommend the use of gas filled
surge protectors, after an isolation transformer with electrostatic shield.
When installing the grounding system, please observe the following items:

3.3.7 Power Supply

Before plugging the equipment to the power supply, verify the voltage in the outlet to make sure
that is correct.If its variation is greater than 10%, it is necessary to use a power stabilizer to
correct the voltage.
The power provided by the stabilizer must be at least 30% greater than the consumption of
the equipment
Manual Rev. 0.0 - March 2018
 Connect all equipment carcasses to the grounding system using the
grounding rig that comes with them.
 Connect the gate and all the wires from the fence to the grounding system.
 Connect the neutral wire from the public power line to the grounding system.
 Connect the rig from the lightning rod to the grounding system with the shortest
connection possible avoiding cable splices.
The tower's structure must also be connected to the grounding system.

 Use porcelain isolators to insulate the lightning rod rig.
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