Grounding is to connect the metal chassis or shell of power and telecommunications equipment to the ground wire in order to prevent electric shock or protect the safety of equipment; Use the earth as the grounding line of the current loop. . In the power system, the neutral point, shell or bracket of equipment are electrically connected with electrical devices and grounding devices by conductors, which is called grounding. The function of grounding is not only to introduce some useless current or noise interference into the earth, but also to protect users from electric shock.
Judging whether the computer room is grounded is actually very simple, that is, measuring the grounding resistance. Of course, this requires equipment, and you shouldn't have it. First of all, we can observe whether there is an equipotential terminal board in the computer room. If there is, it can basically be determined that it is grounded. Second, we can observe whether there is flat steel under the anti-static floor of the computer room (flat steel is generally used in engineering), and if there is, we can also determine the grounding.