The international ISO/IEC standard is almost identical with the European EN standard. In contrary to the American TIA/EIA standard they differentiate categories and classes. A category specifies the methods and values by which individual components must be tested. This means that individual components can only be tested and specified according to a category. By connecting products which meet a certain common category the complete system is defined by this category. The component meeting the lowest category defines the value of the class.
The EN 50174-2 standard describes the segregation of metallic information technology cabling and power supply cabling
The segregation distances depend on the following factors:
• The electromagnetic compatibility (EMC) of the information technology cable
o Coupling attenuation for shielded symmetrical cables
o Transverse conversion loss (TCL) for non-shielded symmetrical cables
o Screening attenuation for asymmetrical (coaxial) cables and twin axial cables
• The design of the power supply cable
• The dimensions of the power supply cable and the type of the powered electric circuit
• The existence of segregators between the information technology cabling and the power supply cabling.
The segregation distances are determined according to the EN 50174-2 standard (Segregation of Metallic Information Technology Cabling and Power Supply Cabling).
Channel - With Patchcords.