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The world is becoming digitalized, driven by rapid-changing technologies and innovations. Since telecommunication has advanced and has been accessible exponentially, e.g., 4G, 5G (mobile devices), and WiMax (PC), the world is now at the age of information and communication. Also, broadcasting is adapting into digital TV format; hence, multiple broadcast stations must be constructed covering countrywide broadcast signals. To safety store the data and provide stability to the broadcast stations, a data center is needed.
 
Kumwell provides the solution, “grounding and lightning protection system,” for the data center to protect telecommunication infrastructures. Kumwell also developed the “Smart Lighting Protection System,” which is proactive-digital maintenance for crewless radio stations, resulting in non-errors and never-shutdown operations.  


  Total Solution for Telecommunication Tower  
 
Grounding grid effective length design

  • The telecommunication tower’s grounding system and bonding system must design according to ITU K.112 (Lightning Protection, Earthing, and Bonding: Practical Procedures for Radio Base Stations). The objective is to achieve high-performance lightning protection and electromagnetic compatibility (EMC) of all devices.
 
  • ITU K.112 (6) standard states that telecommunication’s grounding grid designs should not reduce grounding resistance but rather reduce grounding impulse impedances. 
 
  • Grounding grid formation must be a ring shape surrounding telecommunication tower, equipment room, and fences. On the other hand, using the counterpoise formation focusing on effective length is also viable.
 
  • Most telecommunication stations are located in hills, having high specific ground resistance. Hence, MEG (More Effective Grounding) should be used to improve grounding grid performances; conductors or ground rods should also be coated for reducing ground impedances.



Side-Mounted Antenna Lightning protection

  • Air terminal rods installed higher than 60 meters and next to the side-mounted antenna are exposed to lightning from aside.
 
  • Air-termination rods must be installed horizontally above and under a side-mounted antenna to prevent lightning damage to equipment.
Flashover protection to equipment by KHV cable

  • When designing lightning protection for sensitive equipment, e.g., antenna equipment, down conductors are needed to reduce inductance or equipment damage. Using air-terminals wrapped with a high voltage insulating down conductor (KHV) can compensate separation distance for lightning safety.
 
  • KHV passes voltage protection test according to IEC 62561-8 standard (Requirements for components for isolated LPS).
Lightning Surges and switching surges protection by Surge Protective Devices (SPD)

  • Kumwell SPD protects multiple devices, e.g., AC power supply, DC power supply, Transmitter Unit, and Data/Signal Line.
 
  • Kumwell SPD passes IEC 61643 (Low-Voltage Surge Protective Devices) test.
 
  • SPD Monitoring Unit can also real-time track SPD and fuse availability. It will notify users immediately when one of the equipment is damaged, resulting in easier maintenances.
Lightning protection, grounding system, and surge protection management by Smart Lightning Management System (SLMS)
 
  • SLMS is an intelligent innovation that simultaneously monitors the whole system of lightning protection, grounding system, and surge protection. 
 
  • SLMS can notify lightning and electromagnetic threats instantly.
 
  • SLMS is suited for unmanned remote cell sites due to its capability in monitoring and monitoring all lightning protection, grounding system, and surge protection always to be available.


  Total Solution for Data Center  
 
Noise reduction by Signal Reference Ground Grid (SRG) installation
 
  • EIT states that Thai data center standards must have a mesh bonding network (grounding of equipment cabinet), rack foundation, wiring & cables rails, and more. These will act as a grounding reference reducing impedance, signal noise and protecting connected signal circuits.
 
  • Mesh bonding network comprises a supplementary bonding grid, such as a copper conductor grid installed in the central computer room, having a suitable distance between 600 mm to 1.2 m. Moreover, the conductor's space should be minimal if the mesh bonding network needs to have the best signal noise reduction (600 mm).
 
  • To have an easy installation and better signal noise reduction, the mesh bonding network should use a flat-copper conductor, 50 mm wide and 0.5 mm height, and have a 600 mm distance away from the standardized Signal Reference Ground Grid.
 
  • The flat-copper conductor installation must be welded with every six raised floor pillars.
Telecommunication bus bar installation (Telecommunication Ground Bar)

  • Metal parts or metal enclosures must connect to grounding. Therefore, Telecommunication Ground Bar is needed for bonding with other devices.
 
  • Telecommunication Ground Bar is a bus bar made from pure electrolyte copper 99.9% and passes IEC 62561-1 standard test. Furthermore, it has a slide hole, which is compatible with one-hole and two-hole cable lugs.
System surge prevention by Surge Protective Devices (SPD) Installation
 
  • EIT states that the Thai data center must install surge protective devices for the AC electric system and telecommunication system in multiple locations, such as public utility entrance, generator bus, main electrical switch, minor power distribution board, and channel banks tethered with other areas.
 
  • Kumwell SPD protects all AC Power Supply, DC Power Supply, Transmitter Unit, and Data/Signal Line. 
 
  • Kumwell SPD passes IEC 61643 (Low-Voltage Surge Protective Devices) standard test.
Contact Center
Tel : 02-954-3455
E-Mail : info@kumwell.com
Kumwell Corporation Public Company Limited
358 Liang Mueang Nonthaburi Road, Bangkrasor,
Muang, Nonthaburi, Thailand 11000