Surge Protection for Solar Systems
Like all electrical equipment photovoltaic systems can be damaged by both direct and indirect lightning strikes and other overvoltage disturbances caused by electrical switching operations, load switching and so on.
Photovoltaic systems are designed to have an operational life of 20 or more years so the chances of an electrical disturbance causing damage over this time can be quite high. Protection against these disturbances will help to ensure that a long operational life is achieved.
Statistics on damage due to lightning induced overvoltages have shown that electronic installations up to about one kilometer from the strike point may be susceptible to induced or line-carried overvoltages1. In a region with a lightning ground flash density of just one flash per square kilometer per year this equates to potentially 60 disturbances over a 20 year period.
For comparison a typical domestic dwelling in the same region has about 1 chance in 100 of taking a direct lightning strike over that 20 year period. Therefore protection against indirect strikes assumes a greater importance.
Talk to us at Novaris for more information, [email protected] or see our Web site www.novaris.com.au
Owner/ manager Electrical On at Electrical One
6 年I think this will be a good idea for all our Solar Installations going forward with the extra lighting we are seeing in our State of Tasmania.