Types of interference sources

● The source of interference from the construction of the computer room

(1) High -frequency interference generated by the distribution network and power distribution box.

(2) Harmony interference caused by high -power motor electrical sparks.

(3) Interference caused by fluorescence lamps and electronic ballasts.

(4) Interference generated by high -frequency switching power supply.

(5) The interference generated by the ringing current of the phone.

(6) Periodic pulse interference generated by information processing equipment.

If the computer room comprehensive wiring system cannot keep a safe distance from these interference sources, the shielding system can be used to reduce or eliminate the interference of the comprehensive wiring system.

● The source of interference from the outside of the computer room building

The interference sources from the outside of the computer room are:

Radar, radio launch equipment, mobile telephone base stations, high -voltage wires, electrified railways, interference signals in the lighting area environment, etc.

Obviously, the sources of interference from intelligent buildings have high electric field strength. When the above -mentioned interference sources existing above the comprehensive wiring system of the computer room should also be used in the shielding system.