Benjamin Franklin discovered that lightning striking an elevated grounded rod would follow a "path of least resistance" to earth. His discovery advanced fire safety considerably in those days and still holds true today.
The deployment of rods (now called air terminals as they're a termination point for lightning in the air) with a series of horizontal and vertical straps or wires to ground rods (so called because they are a termination point for lightning in the ground) make up the classic definition of a Lightning Protection System (LPS). A LPS can be defined as a "preferential path for lightning from intercept location to ground destination.
Today's buildings typically are not simple wooden or masonry structures as in the 18th Century. Modern buildings may contain: structural steel; steel reinforcing in concrete; metal clad walls and/or metal roofs; cast iron waste water pipes; copper water pipes in walls; cable TV wiring; telephone wiring; electrical wiring; metal wall studs; metal door and window frames, etc.
MDS Consulting Lightning Protection Engineers will perform a site survey to determine the best system for your needs.
Following the initial survey and risk assessment, the design, installation and testing of the system is carried out with minimal disruption to the client, combined with our annual testing service giving you maximum protection.
All our systems are designed, fitted and tested to BSEN 62305 (2008)