Product locator Product range overview Compliance with RoHS Directive 2002/95/EC What transients are and why you need protection Risk assessment Protection benefits When and where to protect How to get effective protection Location categories and exposure levels explained Installation advice What every Furse protector gives you Direct sales Worldwide distribution Request literature Enquiry form         Transient overvoltages are large, very brief and potentially destructive increases in voltage. Causes Transient overvoltages can be caused by: the secondary effects of lightning strikes (either between clouds or to ground) from a kilometre, or more, away the electrical switching of large inductive loads (such as motors, transformers and electrical drives), or capacitive loads (such as power factor correction equipment).   1 | 2 | 3