Data Centre Underfloor Earthing
Signal Reference Grid (SGR)
The global IP data traffic is increasing dramatically in recent times. To accommodate for this increase in traffic there has been an increase in construction of data centres. Data centres need to achieve a high level of up-time and error free operations and for this reason allot of emphasis is place on data centre earthing. The main functions of a data centre underfloor earthing also referred to as signal reference grid (SGR) is to reduce equipment communication interference and to prevent damage to equipment.
The signal reference grid (SRG) is a network of copper wires typically installed below a raised floor in a data centre. SGR is typically constructed of copper flat tape, copper wire or aluminium wire in a grid type formation. The pedestals (Low Impedance Riser – LIR) are then bonded to the SRG to form part of the earthing system. A signal reference grid (SRG) should be employed as a means of achieving a high-frequency common ground reference for all equipment within an area.