The RG-59 U/4 FHF Coaxial Cable is a critical data cable designed primarily for short to medium-distance signal transmission in Weak Current systems, such as CCTV (Closed-Circuit Television Systems), CATV, and satellite distribution systems. The cable’s HFFR (Halogen-Free Flame Retardant) structure eliminates the risks of toxic gases and smoke associated with traditional PVC cables during a fire, raising indoor safety standards to the highest level. This cable, offered under the Delta RG assurance, guarantees loss-free transmission of data and video signals with a 75 Ohm impedance.
In this comprehensive guide, we will examine the technical structure of the RG-59 Coaxial Cable, the role of HFFR insulation in safety, and how Deltatema adds value to your projects.
Structure and Features of the RG-59 U/4 FHF Coaxial Cable
The RG-59 Coaxial Cable is an industry standard for video signal distribution over short and medium distances in weak current systems.
- 75 Ohm Impedance: The most common impedance for coaxial cables, 75 Ohms, is the standard for transmitting video and RF (Radio Frequency) signals. This ensures that the signal is transmitted with maximum power and minimal reflection.
- FHF (Flame Retardant, Halogen-Free): This is the main safety feature of the cable. This structure does not release toxic and corrosive gases (like Hydrogen Chloride) harmful to human health during a fire and has low smoke density.
- Conductor and Insulation: It typically has an inner conductor of Copper or Copper Clad Aluminum (Cu/Al) with a diameter of 0.81 mm and Foamed Polyethylene (FPE) insulation for low attenuation.
- Shielding: Shielding layers consisting of aluminum foil tape and copper/aluminum braiding provide protection against external electromagnetic interference (EMI).
The Importance of HFFR/FHF in Safety: Living Space During a Fire
Halogen-free products like the RG-59 U/4 FHF Coaxial Cable are mandatory, especially in enclosed areas with high human occupancy (hospitals, schools, shopping centers, hotels).
- Evacuation Safety: Low smoke density preserves visibility during a fire, facilitating the work of evacuation teams.
- Equipment Protection: While corrosive gases from PVC cables cause irreparable damage to sensitive electronic devices (CCTV recorders, servers), FHF cables prevent this risk.
These cables are produced in accordance with the higher safety classes of the CPR Regulation (Construction Products Regulation).
Areas of Use and Performance Analysis
The primary uses of the RG-59 Coaxial Cable are its flexibility and its 75 Ohm impedance.
- CCTV Security Systems: Transmission of camera signals over short and medium distances, preserving image quality. The RG-59 is a cost-effective solution for low-frequency applications.
- Internal Building Distribution: Final connections to individual units in central satellite systems (SMATV).
Signal Attenuation Calculation
The primary technical issue with coaxial cable is signal loss (attenuation). Attenuation (in dB/100m) increases proportionally with the signal’s frequency and distance. For example, the suitability of RG-59 Coaxial Cable must be calculated based on the signal source’s frequency and cable length to protect the project’s long-term investment value.
Deltatema Assurance and Expert Selection
At Deltatema, we understand the technical complexity of coaxial cables. With our Delta RG assurance, we not only supply the RG-59 but also help you choose the correct sheath material based on your project’s needs.
- Rigidity and Installation: The RG-59 is more flexible than thick cables like the RG-11, which eases installation. However, paying attention to correct bending radii and obtaining expert consulting prevents installation errors.
- Supply and Compliance: As part of the Delta RG family, we provide support for the selection of appropriate mounting accessories.
Conclusion
The RG-59 U/4 FHF Coaxial Cable is an indispensable solution that combines safety and performance in weak current and video systems. With Deltatema assurance, we elevate your project’s safety standards and enable you to make a long-term investment.
