Grounding Requirements - Ruijie RG-AM5528-SF Hardware Installation And Reference Manual

Hardware Installation and Reference Guide
and component aging. The equipment room should prevent the intrusion of harmful gases
(such as sulfur dioxide, hydrogen sulfide, nitrogen dioxide, and chlorine), and the specific
limits are as follows:
Gas requirements
Table 1-5
Gas
Sulfur dioxide
Hydrogen sulfide
Nitrogen dioxide
Ammonia gas
Chlorine
Note
The average is the average value within a week. The maximum value is the upper limit within a
week, which does not exceed 30 minutes per day.

Grounding Requirements

1.6.6
A good grounding system is the basis for the stable and reliable operating of the device, and
is the primary condition for preventing lightning strikes and resisting interference. Carefully
check the grounding conditions of the installation site according to the requirements of the
device grounding specifications, and properly ground the device according to the actual
situation.
Safe grounding

For the device using AC power, the cabinet and power distribution box must be fully
grounded; otherwise, when the insulation resistance between the power supply in the device
and the chassis becomes small, electric shock injury may be caused.
Caution
The building shall provide a protective earth connection to ensure that the device is connected
to the protective earth.
Lightning protection

The lightning protection system of a facility is an independent system consisting of a lightning
rod, a lower conductor and a connector connected to the grounding system. This grounding
system is usually shared with the grounding used as the power reference ground and the
Average (mg/m³)
0.2
0.006
0.04
0.05
0.01
11
Installation Preparation
Maximum (mg/m³)
1.5
0.03
0.15
0.15
0.3