Grounding Description; Rack Grounding Pole; Rg-S12000 Grounding Method - Ruijie Networks RG-S12000 Series Quick Installation Manual


An outstanding grounding system is the basis of stable and reliable operation of RG-S12000 and
the essential condition for lightning and interference prevention.

For the safety of body and switch, good grounding is necessary for the switch. The electric
resistance between the chassis and the ground must be less than 1 ohm.

Grounding description

There are two kinds of ground in a machine room: safe ground and lightning prevention ground.

Safe ground guarantees the safety of body and switch. A typical example is the AC protection
ground of 3-core socket of power supply bank.

Lightning prevention ground prevents lightning shock. The lightning prevention system of
general equipment is a separate system composed of lightning rod, down-conductor and
grounding system.

Rack grounding pole

There are two grounding poles on the chassis back of RG-S12000, as shown in the following figure.
Figure 8-2 Grounding poles on the chassis back of RG-S12000

RG-S12000 Grounding Method


Connect the grounding pole on the chassis back of RG-S12000 to the grounding pole or
grounding bar of the machine room through grounding cables.

Connect power modules to the socket through 3-core AC cables. The AC protection ground of
the socket is also connected to the grounding pole or grounding bar of the machine room. This
Figure 8-1 3-core socket of power supply bank