Analysis of Shielding Strong Power Function of 8-core Network Cable

　　The shielding ability of an 8-core network cable depends on its type.

　　UTP (Unshielded Twisted Pair)

　　Ordinary 8-core network cables (such as Super Category 5 and Category 6 wires) are of the UTP type and have no shielding layer. They only counteract part of the electromagnetic interference through the twisted pair structure, but they are less protected against magnetic or electric field interference generated by strong electricity (such as high-power power cords, motors, etc.).

　　STP/SFTP (shielded twisted pair)

　　If the 8-core network cable is a shielded type (e.g. STP or SFTP):

　　STP: Single-layer metal foil or woven mesh shielding to block some external electromagnetic interference.

　　SFTP: double shield (foil + woven mesh), stronger protection.

　　This type of cable can significantly reduce strong electrical interference, but it is necessary to ensure that the shield is properly grounded in order to function.

　　Practical application suggestions:

　　High-power environment wiring: Prefer SFTP cable and maintain a distance of at least 30cm from the power cord, or use a metal bridge to isolate it.

　　Shielding layer grounding: The shielding layer of the shielding cable needs to form a complete circuit through a grounding device (such as a cabinet grounding post), otherwise it may instead become an "antenna" to introduce interference.

　　Extreme scenarios: If strong electrical interference is extremely strong (e.g. near a substation), it is recoMMended to switch to optical fiber tranSMission to completely avoid electromagnetic interference.

　　Summary: Ordinary 8-core network cable (UTP) does not have strong electrical shielding ability, and it is necessary to choose the STP/SFTP type and standardize the construction to achieve the protection effect.