Design and Installation
The design of your lightning protection system is an important part of your installation. A system designed correctly by our engineers allows us to identify what is required to install your system in-line with the current standards and specification set out in BS EN 62305 – 2006.
A correctly installed lightning protection system performs the simple, yet invaluable task of providing a network of low resistance paths for lightning current to follow in preference to other parts of a structure. While the concept behind lightning protection is relatively simple, the requirements for proper installation are specific and often complex.
Essential System Components
A lightning protection system designed to comply with BS EN 62305-2006 must include all of the following elements:
1) Air terminal networks
2) A network of ground terminations
3) Down conductors interconnecting the air terminals and ground terminations
4) Interconnections with metallic bodies
5) Surge suppression devices on all incoming power and communication lines
The first three elements serve to intercept, conduct and dissipate the main lightning discharge. The fourth element addresses the secondary effects of a lightning strike by limiting the dangers of the harmful current jumping or side flashing within a structure. The last element protects power lines and connected equipment from damaging currents traveling on utility lines.
Each of these elements is essential to ensure the most effective system performance. Failure to make proper provisions for any of these five elements can result in inadequate protection. Our aim is to provide maximum protection with a system installed as discreetly as possible minimising the visual impact it may have on your structure.
Whether it a New or Existing building our designers are here to help. Please contact your local office.
We offer a full installation service for all aspects of electrical and specialist earthing systems to comply with BS 7430-1998. We have worked on a diverse range of earthing projects which at times can be challenging and require extensive excavation works in a small working area to obtain the desired resistance readings, and we are confident we can satisfy any needs our clients have regarding earthing systems such as:
– Sub Station earthing
– Transformer earthing
– Generator earthing
– Static Earthing
– Communications mast earthing
– Surge Protection
No Obligation Quote
For your FREE no obligation quotation or to discuss your requirements please contact us by email via our contact page.
UK-wide Lightning Protection Services
Whether it be a Domestic, Commercial or Historic building our systems are designed and installed to the highest standards and comply with the current standards and specification set out in BS EN 62305 – 2006. A lightning protection installation can range from a Class I, II, III & IV and in brief consists of an Air-terminal Network, Down Conductors and Earth Terminations.
The air-terminal network is a grid section installed at roof level forming a faraday cage with cross bonding to all extraneous metalwork, roof mounted plant and potential strike points. Where practical metallic roof coverings can be utilised as a natural conductor therefore eliminating the need for a roof mounted air terminal network.
Down conductors are interconnected to the air-terminal network and give the current a safe path to the earth terminations in the event of a lightning strike. Where practical structural steel and reinforcing bars can be utilised as a natural conductor therefore eliminating the need for a externally fitted tapes.
The earth terminations are connected to the down conductors and are a vital part of the lightning protection system as they disperse the current into the ground safely in the event of a lightning strike. The standard that relates to such protection states an earth location when tested should not exceed 10 times the number of earths of the system and a connected system should not exceed the maximum 10 Ohms.
Risk Assessment to BS EN 62305:2006