Anti-Interference Requirements; Lightning Protection Requirements - Ruijie RG-AP680-AR Hardware Installation And Reference Manual

Hardware Installation and Reference Guide
Installation
2.2.5

Anti-interference Requirements

Take interference prevention measures for the power supply system.

Keep the AP away from the grounding equipment or lightning and grounding

equipment of the power device as much as possible.
Keep the AP far away from high-frequency current devices such as the high-power

radio transmitting station and radar launcher.
Take electromagnetic shielding measures when necessary.

2.2.6

Lightning Protection Requirements

The RG-AP680-AR can guard against lightning strikes. As an electric device, too strong
lightning strikes may still damage the device. Take the following lightning protection
measures:
Ensure that the neutral point of the AC power socket is in good contact with the

ground.
It is recommended that you install a power lightning arrester in front of the power

input end to enhance the lightning prevention for the power supply.
Keep the grounding connection within 30 m, and use a 40 mm x 4 mm or 50 mm x 5

mm ground bar of hot-dip zinc-coated flat steel sheet.
When the connection cable between the main grounding conductor and local

equipotential earthing terminal board (LEB) on each floor is short, use a stranded
copper wire with a sectional area not less than 1.318 mm
cable.
Use a shielded network cable if possible, ensure that devices connected to both ends

of the shielded network cable are reliably grounded, and make sure that the sheath of
the shielded network cable is also grounded if possible. If no shielded network cable is
available, wire the network cable through a steel pipe and bury the steel pipe for
lead-in, and properly ground both ends of the steel pipe.
Use a power cable with the PE end to ground the power supply (AC). Ensure that the PE

end is properly grounded, with a ground resistance less than 5 ohms. Do not use a
two-wire power cable with only the live (L) wire and neutral (N) wire. Do not connect
the N wire to the protection ground cable of other communication devices, and ensure
that the L wire and N wire are properly connected.
19
Preparing
(16 AWG) for the connection
2
for