Lightning Protection - Ruijie Networks Reyee RG-NBS3100-8GT2SFP-P-V2 Installation Manual

Installation Guide
6.3

Lightning Protection


Installing an AC Power Arrester (Lightning Resistance Socket)
When an AC power cord is introduced from outdoors and directly connected to the power port of the switch, the
AC power port must be connected to an external lightning protection power strip to protect the switch against
lightning strokes. The lightning resistance socket can be fixed on the rack, workbench, or wall in the machine
room by using cable ties and screws. AC power enters the lightning protection power strip and then enters the
switch.
Figure 6-4 Power Arrester
Normally running indicator: When the
indicator is green, the circuit is working
properly. Otherwise, the protective circuit is
damaged.
Installed electronic circuit board
Note
The power arrester is not delivered with the switch. Please purchase it based on actual requirements.
Precautions:

Make sure that the PE terminal of the power arrester is well grounded.

After the AC power plug of the switch is connected to the socket of the power arrester (lightning resistance
socket), the lightning protection function is implemented only if the RUN indicator is green and the ALARM
indicator is OFF.

If the ALARM indicator on the power arrester is red, check whether it is caused by poor grounding connection
or by the reversed connection of the Null and Live lines. The detection method is as follows: Use a multimeter
to measure the polarity of the power socket for the arrester when the indicator is red. If the N line is on the
left and the L line is on the right (facing the socket), the arrester's PE terminal is not grounded. If not, the
polarity of the arrester power cord should be reversed. In this case, you should open the power arrester and
Grounding and polarity detection indicator: If the
indicator is red, cable connection is incorrect (the
ground cable is not connected, or the N and L lines are
reversely connected). Check your power supply line.
Multi-purpose sockets (connected to the power
supply of the switch)
27
Power switch
IEC standard socket, which is
connected to the power supply
in the equipment room through
the power cable
Overload auto-protector, which
can be reset manually