What is Transient Voltage Surge Suppression (TVSS)?
TVSS is the technology designed to protect against the damaging effects of surges introduced to the electrical grid from a multitude of sources outside of your control (i.e. lightning, infrastructure construction). The equipment is usually employed in a two stage philosophy, or a cascading design. The first stage starts at the entry point of the utility power. The second stage is at the point of use. There are many styles available for each stage with a varying degree of features. Why Use TVSS in Addition to a UPS? UPS equipment is intended to protect the second stage of a cascading design. By neglecting the first stage of protection at the service entrance, you are increasing the chance of a catastrophic event that will damage the UPS. Although the UPS will have protected your servers, it could possibly be permanently damaged in the process. When you have TVSS equipment at the utility feed, it greatly reduces the potential effect of the surge allowing you UPS a much greater chance of
