FIGURE 4: Example of typical ANSI/TIA-607-E ICT bonding infrastructure (Source: Harger)
There are several methods for bonding conductor connections, whether to the PBB or SBB. Exothermic welding of two-hole lugs to the busbar is a reliable option, providing a permanent, low-resistance connection. Alternatively, listed compression with two-hole lugs or listed exothermic two-hole lugs, both fastened securely to the busbar, is also an effective solution. The choice between these methods often depends on local codes and regulations, ease of installation, and long-term maintenance considerations. In ICT spaces that require protection against electrostatic discharge (ESD), the installation of electrostatic dissipative flooring will be required. This specialized flooring material helps control the buildup and discharge of static electricity, protecting sensitive ICT equipment from potential damage. When installing such flooring, it is imperative to bond the system properly to the SBB, following the manufacturer's specific requirements. This process often involves soldering an insulated bonding conductor to exposed wall-mounted portions of the ESD grounding foil to create a continuous path for static discharge. By carefully considering these aspects of ICT bonding system installation, professionals can ensure an effective and compliant infrastructure that supports optimal safety and performance of modern ICT environments.
As with all aspects of ICT design and implementation, staying current with evolving standards and best practices is the best way to ensure continued success. THE RELATIONSHIP BETWEEN ELECTRICAL AND ICT BONDING SYSTEMS One common question, particularly in data center design, is whether separate grounding systems are needed for electrical and ICT infrastructure. While the bonding and grounding of a data center's electrical service is outside the scope of ANSI/TIA-607-E, coordination between these systems is essential.
How the two systems typically interface:
1. Building Entrance
• An electrical bonding busbar is provided where primary electrical services enter the building.
• This busbar has a direct bonding connection to the exterior building ground ring and ground rods.
2. PBB
• Located near the primary ACEG busbar.
• Connected to the ACEG busbar via the TBC, installed by a licensed electrician.
I
40
ICT TODAY
Made with FlippingBook - Online catalogs