Preparing For Installation; Grounding And Lightning Protection Requirements - Ruijie RG-AP680 Hardware Installation And Reference Manual

Hardware Installation and Reference Guide
Installation
2

Preparing for Installation

Note
To avoid personal injury and device damage, carefully read the safety precautions

before you install the device.
The following safety precautions may not cover all possible dangers.

2.1

Grounding and Lightning Protection Requirements

Ensure that both the power-receiving end and the power-supplying end are well-

grounded.
The grounding cable is shorter than 30 m (98.43 ft), and use a 40 mm (1.57 in.) x 4 mm

(0.16 in.) or 50 mm (1.97 in.) x 5 mm (0.20 in.) hot-dip galvanized steel flat bar as the
grounding bar.
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 mm2 (16 AWG) for the
connection cable.
Use a shielded network cable if possible, ensure that the 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.
No additional lightning protector is required as a high-profile lightning protector is

built in the RG-AP680(CD), and the power port support 6 kV lightning protection. If a
lightning protector of a higher profile is available, configure the lightning protector as
required. Before the configuration, connect the lightning protector to the grounding
cable.
Use a power cord with the protective earthing (PE) connector to ground the AC power

supply. Ensure that the PE connector 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
naught (N) wire. Do not connect the N wire to the protection grounding cable of other
communication devices, and ensure that the L wire and N wire are properly
8
Preparing for