1. Installation principle: General mechanical equipment may produce instantaneous high voltage, also known as surge, when switching, short-circuiting or power switching, which can cause great damage to the equipment and can also Harmful to people. To avoid this damage, it is necessary to install a surge protector in parallel with the equipment, which can effectively absorb the sudden huge energy to protect the connected equipment from damage.
2. Installation precautions:
The installation of power line surge protector (SPD) should comply with the following regulations:
1. All levels of the power line The surge protector (SPD) should be installed at the front end of the power line of the protected equipment, and each terminal of the surge protector should be connected to the phase line of the same end of the line in the distribution box. The ground terminal of the surge protector is connected to the protective ground wire (PE) ground terminal board of the distribution box. The ground terminal board of the distribution box should be connected to the equipotential grounding terminal board of the lightning protection area. The connecting wires of surge protectors (SPD) at all levels should be straight and their length should not exceed 0.5m.
2. Power line surge protectors with terminal blocks should be crimped; surge protectors with binding posts should be connected with wire noses and binding posts.
3. The minimum cross-sectional area of ??the connecting wire of the surge protector (SPD) should comply with the regulations.
The installation of the antenna feeder surge protector (SPD) should comply with the following regulations:
1. The antenna feeder line surge protector SPD should be connected in series between the antenna feeder line and the protected Between equipment, it should be installed near the equipment in the computer room or on the rack, or directly connected to the equipment feeder interface.
2. The ground terminal of the antenna feeder line surge protector SPD should be connected to the direct lightning non-protected area (LPZ0A) or direct lightning protected area (LPZ0B) using a copper core conductor with a cross-sectional area of ??not less than 6mm2. On the equipotential grounding terminal board at the junction with the first protection zone (LPZ1), the grounding wire should be straight.
The installation of signal line surge protector (SPD) should comply with the following regulations:
1. The signal line surge protector SPD should be connected to the signal port of the protected equipment. The SPD output of the surge protector is connected to the port of the protected equipment. The surge protector SPD can also be installed in the cabinet, fixed on the equipment rack or on a nearby support.
2. The grounding terminal of the signal line surge protector SPD should be connected to the local equipotential grounding terminal board in the equipment room using a copper core wire with a cross-sectional area of ??not less than 1.5mm2. The grounding wire should be straight. The surge protector SPD should be firmly installed and its location and wiring correct.