Contractor and tenders

You are responsible for the safety and protection of a building or engineering the building of a new object?

You will most probably be aware of the enormous consequences that may occur due to direct or indirect lightning stroke. Earth electrode and lightning protection systems are a critical part of any electrical system, yet are often seen as inert and may sometimes be dismissed as cost saving or forgotten about until a later stage of the project. However, should these systems fail due to incompetent design or the use of cheap substandard components, the results may be catastrophic, even lethal. Moreover, valuable data will be destroyed when computer systems are down.

With our risk assessment software, we are able to determine which level of Lightning Protection System is required to provide a compliant installation based upon the size of the building, the function of the building and the likely occupancy of the site.



We will then be able to advise whether the site requires a Level I, II, III or IV system in compliance with IEC 62305.
Only when we are fully convinced that the design parameters are met, a full ‘for construction’ style drawing will be produced.

Lightning protection
For intra-cloud discharges up to 60kA peak currents have been recorded, but are more typically 20-30kA. The pulses occurring during the initial lightning attachment phase occasionally occur in negative cloud to ground flashes. The design of a lightning protection system needs to: Intercept lightning flash (i.e. create a preferred point of strike), conduct the lightning current to earth, dissipate current into the earth and create an equipotential bond to prevent hazardous potential differences between LPS, structure and internal elements/circuits.

The lightning protection system generally consists of two parts. The external lightning protection system intercepts, conducts and dissipates the lightning flash to earth. The internal lightning protection system prevents dangerous sparking within the structure (using equipotential bonding or separation distance).